NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

Area code 513 prefixes

784 of the 786 possible NXX blocks are assigned in area code 513 (99.7% of capacity), spread across 25 rate centers and 44 holders. The largest holders are CINCINNATI BELL (251 blocks, 32.0%), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH (125 blocks, 15.9%), T-MOBILE USA, INC. (79 blocks, 10.1%). Grouped by brand, Altafiber accounts for 260 blocks; brand-attributable holders cover 97% of the code, and the rest are CLECs, VoIP wholesalers and regional carriers that trade under their own names. The assignment records here run from 2001-03-06 to 2024-02-02, with 28 blocks handed out in 2011 alone. 454 blocks (58%) are in thousands-block pooling, meaning the block is shared between carriers in 1,000-number lots rather than held whole – which is why a single NXX can serve several carriers at once. 220 were growth assignments – additional blocks to a carrier that had already filled its earlier ones.

784 assigned blocks of 786
25 rate centers
44 holders of record
58% in thousands-block pooling

Largest holders in 513

Holder of record, as NANPA names itBrandBlocksShare
CINCINNATI BELL Altafiber 251 32%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH Verizon 125 15.9%
T-MOBILE USA, INC. T-Mobile 79 10.1%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 55 7%
LEVEL 3 COMMUNICATIONS, LLC - OH Lumen 39 5%
ONVOY, LLC - OH Onvoy 36 4.6%
BANDWIDTH.COM CLEC, LLC - OH Bandwidth 19 2.4%
SPOK, INC. Spok 17 2.2%
PAETEC ITEL, LLC Windstream 16 2%
LEVEL 3 TELECOM OF OHIO, LLC - OH Lumen 16 2%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH Verizon 14 1.8%
TELEPORT COMMUNICATIONS AMERICA, LLC - OH AT&T 14 1.8%

Names are printed as they appear in the assignment records, which is the legal entity rather than the brand. Holding a block is not the same as serving the numbers in it: portability moves numbers between carriers and pooling splits a block between several.

Rate centers with their own page

Rate centers where at least three blocks are assigned, excluding the numbered metro zone codes. The remainder are in the full table below.

All 784 assigned blocks

One row per NXX. “Pooled” means carriers draw 1,000-number lots from the block rather than holding all 10,000, so a pooled prefix can belong to several carriers at once. “Not in service” means assigned but not yet open for calls – a caller ID from one of those is necessarily spoofed. The holder column gives the brand where the legal entity maps to one; the full legal names are in the holders table above, exactly as NANPA records them.

PrefixHolder of recordRate centerAssignedPooledIn service
513-200 T-Mobile CINCINNATI – yes yes
513-201 Windstream CLERMONT – yes yes
513-202 Altafiber HARRISON – yes yes
513-203 Verizon CINCINNATI – – yes
513-204 Altafiber MASON 2003-12-09 yes yes
513-205 Verizon CINCINNATI – – yes
513-206 Altafiber CINCINNATI 2007-10-17 yes yes
513-207 Verizon CINCINNATI – – yes
513-208 T-Mobile CINCINNATI 2009-10-09 yes yes
513-209 Spok CINCINNATI – – yes
513-210 Spok CINCINNATI – – yes
513-212 AT&T CINCINNATI 2011-10-06 yes yes
513-213 Verizon CINCINNATI – – yes
513-214 Lumen CINCINNATI 2011-03-11 yes yes
513-215 Altafiber CINCINNATI 2013-03-11 yes yes
513-216 Bandwidth BETHEL 2017-07-19 yes yes
513-217 Altafiber MIDDLETOWN 2003-10-30 yes yes
513-218 Verizon CINCINNATI – – yes
513-219 American Messaging CINCINNATI – – yes
513-220 SKYE TELECOM LLC DBA SKYETEL CINCINNATI 2023-03-10 yes yes
513-221 Altafiber CINCINNATI – yes yes
513-222 Verizon CINCINNATI 2011-05-17 yes yes
513-223 T-Mobile CINCINNATI 2009-10-09 yes yes
513-224 AT&T LEBANON 2022-07-12 yes yes
513-225 T-Mobile CINCINNATI – yes yes
513-226 T-Mobile CINCINNATI – yes yes
513-227 T-Mobile CINCINNATI – yes yes
513-228 Altafiber LEBANON – – yes
513-229 Altafiber MASON – yes yes
513-230 Altafiber CINCINNATI – – yes
513-231 Altafiber CINCINNATI – – yes
513-232 Altafiber CINCINNATI – – yes
513-233 Altafiber CINCINNATI – yes yes
513-234 Verizon MASON – yes yes
513-235 Verizon CINCINNATI – – yes
513-236 Verizon CINCINNATI – – yes
513-237 T-Mobile CINCINNATI – – yes
513-238 T-Mobile CINCINNATI – – yes
513-239 Verizon LTL MIAMI – yes yes
513-240 Verizon CINCINNATI – yes yes
513-241 Altafiber CINCINNATI – – yes
513-242 Altafiber CINCINNATI – – yes
513-243 Altafiber CINCINNATI – – yes
513-244 Altafiber CINCINNATI – – yes
513-245 Altafiber CINCINNATI – yes yes
513-246 Altafiber CINCINNATI – – yes
513-247 Altafiber CINCINNATI – – yes
513-248 Altafiber LTL MIAMI – – yes
513-249 Spok CINCINNATI – – yes
513-250 T-Mobile CINCINNATI 2009-10-09 yes yes
513-251 Altafiber CINCINNATI – – yes
513-252 T-Mobile CINCINNATI – yes yes
513-253 T-Mobile CINCINNATI – yes yes
513-254 T-Mobile CINCINNATI – yes yes
513-255 Verizon OXFORD – yes yes
513-256 Verizon CINCINNATI – – yes
513-257 T-Mobile CINCINNATI – yes yes
513-258 T-Mobile CINCINNATI – yes yes
513-259 T-Mobile CINCINNATI – yes yes
513-260 Verizon CINCINNATI – – yes
513-261 Lumen MIDDLETOWN 2001-12-20 yes yes
513-262 Verizon CINCINNATI – – yes
513-263 Altafiber CINCINNATI – yes yes
513-264 Verizon CINCINNATI – – yes
513-265 Verizon CINCINNATI – – yes
513-266 T-Mobile CINCINNATI – yes yes
513-267 Verizon MIDDLETOWN – – yes
513-268 Lumen SO LEBANON – yes yes
513-269 Spok CINCINNATI – – yes
513-270 Lumen FELICITY 2017-02-03 yes yes
513-271 Altafiber CINCINNATI – – yes
513-272 Altafiber CINCINNATI – – yes
513-273 Lumen OXFORD – yes yes
513-274 Lumen LTL MIAMI – yes yes
513-275 Lumen HAMILTON – yes yes
513-276 Lumen CINCINNATI – yes yes
513-277 Altafiber CINCINNATI – yes yes
513-278 Lumen BETHEL – yes yes
513-279 Lumen HARRISON – yes yes
513-280 Verizon OXFORD 2001-08-30 yes yes
513-281 Altafiber CINCINNATI – – yes
513-282 Lumen LEBANON 2001-11-28 yes yes
513-283 T-Mobile CINCINNATI 2002-03-15 yes yes
513-284 AT&T CINCINNATI – – yes
513-285 Lumen HAMILTON – yes yes
513-286 Lumen CLERMONT – yes yes
513-287 Altafiber CINCINNATI – yes yes
513-288 AT&T CINCINNATI – – yes
513-289 T-Mobile CINCINNATI – yes yes
513-290 T-Mobile CINCINNATI – yes yes
513-291 T-Mobile SEVEN MILE 2004-06-23 yes yes
513-292 Verizon MIDDLETOWN 2002-03-04 – yes
513-293 T-Mobile CINCINNATI – – yes
513-294 Lumen NEWTONSVL – yes yes
513-295 T-Mobile CINCINNATI – yes yes
513-296 Lumen REILY – yes yes
513-297 Lumen CINCINNATI – yes yes
513-298 Lumen BETHANY – yes yes
513-299 Lumen SEVEN MILE – yes yes
513-300 Verizon CINCINNATI – – yes
513-301 T-Mobile CINCINNATI 2011-03-16 yes yes
513-302 T-Mobile CINCINNATI 2011-09-20 yes yes
513-303 Altafiber CINCINNATI – – yes
513-304 AT&T CINCINNATI – – yes
513-305 AT&T CINCINNATI – – yes
513-306 T-Mobile CINCINNATI 2011-05-27 yes yes
513-307 T-Mobile CINCINNATI – – yes
513-308 American Messaging CINCINNATI – – yes
513-309 Verizon CINCINNATI – – yes
513-310 Verizon CINCINNATI – – yes
513-312 Verizon CINCINNATI – – yes
513-313 Verizon CINCINNATI – – yes
513-314 Verizon CINCINNATI – – yes
513-315 Verizon CINCINNATI – – yes
513-316 Verizon CINCINNATI – – yes
513-317 Verizon CINCINNATI – – yes
513-318 Lumen MIDDLETOWN 2002-08-27 yes yes
513-319 AT&T CINCINNATI – – yes
513-320 Verizon MIDDLETOWN – yes yes
513-321 Altafiber CINCINNATI – – yes
513-322 CITYNET OHIO, LLC - OH CINCINNATI 2003-06-20 yes yes
513-323 Lumen SHANDON – yes yes
513-324 Verizon CINCINNATI – – yes
513-325 Verizon CINCINNATI – – yes
513-326 Altafiber CINCINNATI – – yes
513-327 Lumen WILLIAMSBG – yes yes
513-328 T-Mobile CINCINNATI – – yes
513-329 American Messaging CINCINNATI 2024-02-02 – yes
513-330 TPx HAMILTON – yes yes
513-331 T-Mobile LEBANON 2002-04-09 yes yes
513-332 Windstream CINCINNATI – yes yes
513-333 Altafiber CINCINNATI – – yes
513-334 Lumen LTL MIAMI 2002-03-27 yes yes
513-335 Verizon CINCINNATI – – yes
513-336 Brightspeed MASON – – yes
513-337 Verizon CINCINNATI – yes yes
513-338 Lumen CINCINNATI – yes yes
513-339 Brightspeed MASON – – yes
513-340 Charter LTL MIAMI – yes yes
513-341 AT&T HAMILTON 2002-04-23 yes yes
513-342 Lumen BETHANY – yes yes
513-343 Spok CINCINNATI – – yes
513-344 AT&T CINCINNATI 2006-03-03 yes yes
513-345 Altafiber CINCINNATI – yes yes
513-346 Altafiber CINCINNATI – yes yes
513-347 Altafiber CINCINNATI – – yes
513-348 T-Mobile CINCINNATI – yes yes
513-349 T-Mobile CINCINNATI – yes yes
513-350 Spok CINCINNATI – – yes
513-351 Altafiber CINCINNATI – – yes
513-352 Altafiber CINCINNATI – – yes
513-353 Altafiber CINCINNATI – yes yes
513-354 Lumen CINCINNATI – yes yes
513-355 American Messaging MIDDLETOWN – – yes
513-356 T-Mobile CINCINNATI 2011-05-27 yes yes
513-357 Altafiber CINCINNATI – – yes
513-358 Altafiber CINCINNATI – – yes
513-359 Spok CINCINNATI 2002-09-17 – yes
513-360 Altafiber MONROE 2003-10-30 yes yes
513-361 Altafiber CINCINNATI – – yes
513-362 Altafiber CINCINNATI – yes yes
513-363 Altafiber CINCINNATI 2002-10-22 – yes
513-364 Verizon CINCINNATI – – yes
513-365 Verizon CINCINNATI – – yes
513-366 Altafiber CINCINNATI – – yes
513-367 Altafiber HARRISON – – yes
513-368 Verizon CINCINNATI – – yes
513-369 Altafiber CINCINNATI – – yes
513-370 Lumen CINCINNATI 2011-06-02 yes yes
513-371 Onvoy CINCINNATI – yes yes
513-372 Altafiber CINCINNATI 2007-10-30 yes yes
513-373 Lumen CINCINNATI – yes yes
513-374 AT&T CINCINNATI – – yes
513-375 AT&T CINCINNATI – yes yes
513-376 AT&T CINCINNATI – yes yes
513-377 AT&T CINCINNATI – yes yes
513-378 Verizon CINCINNATI – – yes
513-379 Verizon CINCINNATI – – yes
513-380 Charter FELICITY 2023-04-11 yes yes
513-381 Altafiber CINCINNATI – – yes
513-382 Verizon CINCINNATI – – yes
513-383 T-Mobile CINCINNATI – yes yes
513-384 AT&T CINCINNATI 2011-06-13 yes yes
513-385 Altafiber CINCINNATI – – yes
513-386 Onvoy CINCINNATI 2005-08-19 yes yes
513-387 Altafiber CINCINNATI – yes yes
513-388 Altafiber CINCINNATI – yes yes
513-389 Altafiber CINCINNATI – yes yes
513-390 Verizon CINCINNATI – – yes
513-391 Verizon CINCINNATI 2011-07-15 yes yes
513-392 Lumen MIDDLETOWN 2002-03-21 yes yes
513-393 AT&T MIDDLETOWN 2006-04-19 yes yes
513-394 T-Mobile CINCINNATI 2011-08-04 yes yes
513-395 Altafiber CINCINNATI – – yes
513-396 Altafiber CINCINNATI – – yes
513-397 Altafiber CINCINNATI – – yes
513-398 Brightspeed MASON – – yes
513-399 T-Mobile CINCINNATI 2011-08-04 yes yes
513-400 T-Mobile CINCINNATI 2010-12-15 yes yes
513-401 Verizon CINCINNATI 2012-10-08 yes yes
513-402 Windstream MONROE 2010-01-26 yes yes
513-403 Verizon CINCINNATI – – yes
513-404 Verizon CINCINNATI – – yes
513-405 AT&T CINCINNATI – – yes
513-406 Verizon CINCINNATI – – yes
513-407 AT&T CINCINNATI – yes yes
513-408 Spok CINCINNATI – – yes
513-409 AT&T LEBANON 2010-05-06 yes yes
513-410 AT&T CINCINNATI – yes yes
513-412 Altafiber CINCINNATI – – yes
513-413 T-Mobile CINCINNATI 2011-11-16 yes yes
513-414 American Messaging CINCINNATI – – yes
513-415 Verizon CINCINNATI 2011-08-11 yes yes
513-416 T-Mobile MIDDLETOWN 2017-07-20 yes yes
513-417 AT&T CINCINNATI – yes yes
513-418 AT&T CINCINNATI – yes yes
513-419 Altafiber CINCINNATI – yes yes
513-420 AT&T MIDDLETOWN – yes yes
513-421 Altafiber CINCINNATI – – yes
513-422 AT&T MIDDLETOWN – – yes
513-423 AT&T MIDDLETOWN – – yes
513-424 AT&T MIDDLETOWN – – yes
513-425 AT&T MIDDLETOWN – yes yes
513-426 AT&T CINCINNATI 2010-03-18 yes yes
513-427 Lumen BETHEL – yes yes
513-428 Altafiber TRENTON 2007-03-28 yes yes
513-429 AT&T CINCINNATI 2007-07-25 yes yes
513-430 Verizon CINCINNATI 2010-11-08 yes yes
513-431 Verizon CINCINNATI 2011-08-08 yes yes
513-432 AT&T CINCINNATI 2007-08-29 yes yes
513-433 Windstream MIDDLETOWN – yes yes
513-434 Windstream REILY – yes yes
513-435 T-Mobile MIDDLETOWN – yes yes
513-436 Windstream WILLIAMSBG – yes yes
513-437 Windstream SEVEN MILE – yes yes
513-438 Lumen MONROE 2013-07-02 yes yes
513-439 Verizon CINCINNATI 2010-09-08 yes yes
513-440 Onvoy CINCINNATI 2017-08-24 yes yes
513-441 Verizon CINCINNATI 2011-09-07 yes yes
513-442 Onvoy CINCINNATI 2008-01-16 yes yes
513-443 Lumen BETHANY – yes yes
513-444 Lumen LTL MIAMI – yes yes
513-445 Lumen MASON 2005-12-22 yes yes
513-446 Verizon CINCINNATI 2010-06-08 yes yes
513-447 Windstream SHANDON – yes yes
513-448 AT&T CINCINNATI 2009-10-14 yes yes
513-449 Bandwidth CLERMONT 2015-05-07 yes yes
513-450 Onvoy OXFORD 2022-01-11 yes yes
513-451 Altafiber CINCINNATI – – yes
513-452 Windstream HARRISON – yes yes
513-453 Windstream LTL MIAMI – yes yes
513-454 Windstream HAMILTON – yes yes
513-455 Altafiber CINCINNATI – yes yes
513-456 Windstream NEWTONSVL – yes yes
513-457 Windstream BETHEL – yes yes
513-458 Altafiber CINCINNATI – yes yes
513-459 Brightspeed MASON – – yes
513-460 Verizon CINCINNATI – – yes
513-461 T-Mobile OXFORD – yes yes
513-462 T-Mobile CINCINNATI 2011-07-05 yes yes
513-463 Windstream BETHANY – yes yes
513-464 T-Mobile MIDDLETOWN – yes yes
513-465 AT&T MIDDLETOWN – – yes
513-466 Onvoy MASON 2016-02-26 yes yes
513-467 Altafiber CINCINNATI – yes yes
513-468 Charter TRENTON 2007-02-16 yes yes
513-469 Altafiber CINCINNATI – – yes
513-470 Verizon CINCINNATI – – yes
513-471 Altafiber CINCINNATI – – yes
513-472 Charter MORROW 2013-06-24 yes yes
513-473 Verizon CINCINNATI – – yes
513-474 Altafiber CINCINNATI – – yes
513-475 Altafiber CINCINNATI – yes yes
513-476 Verizon CINCINNATI – – yes
513-477 Verizon CINCINNATI – – yes
513-478 Verizon CINCINNATI – – yes
513-479 Verizon CINCINNATI – – yes
513-480 Altafiber SO LEBANON – yes yes
513-481 Altafiber CINCINNATI – – yes
513-482 Altafiber CINCINNATI – yes yes
513-483 Altafiber CINCINNATI – – yes
513-484 Verizon CINCINNATI – – yes
513-485 AT&T CINCINNATI 2007-02-02 yes yes
513-486 Lumen MASON 2013-06-28 yes yes
513-487 Altafiber CINCINNATI – yes yes
513-488 Windstream CINCINNATI 2006-04-26 yes yes
513-489 Altafiber CINCINNATI – – yes
513-490 Verizon CINCINNATI – – yes
513-491 Charter NEWTONSVL 2013-06-24 yes yes
513-492 Lumen MASON – yes yes
513-493 COMMIO, LLC CINCINNATI – yes yes
513-494 Brightspeed SO LEBANON – yes yes
513-495 Altafiber CLERMONT 2013-06-06 yes yes
513-496 AT&T LEBANON 2018-01-11 yes yes
513-497 Verizon CINCINNATI – – yes
513-498 Verizon CINCINNATI – – yes
513-499 Verizon HAMILTON 2018-02-02 yes yes
513-500 Verizon CINCINNATI 2011-01-03 yes yes
513-501 T-Mobile CINCINNATI 2011-09-20 yes yes
513-502 Verizon CINCINNATI – – yes
513-503 Verizon CINCINNATI – – yes
513-504 Verizon CINCINNATI – – yes
513-505 Verizon CINCINNATI – – yes
513-506 Peerless MONROE 2018-02-22 yes yes
513-507 Verizon CINCINNATI 2011-11-30 yes yes
513-508 Verizon CINCINNATI – – yes
513-509 Verizon CINCINNATI – – yes
513-510 T-Mobile CINCINNATI 2011-12-21 yes yes
513-512 AT&T CINCINNATI 2012-01-10 yes yes
513-513 Onvoy CINCINNATI 2023-02-08 yes yes
513-514 WIDE VOICE, LLC - OH CINCINNATI 2018-03-20 yes yes
513-515 Verizon CINCINNATI – – yes
513-516 Verizon CINCINNATI 2012-01-31 yes yes
513-517 Altafiber CINCINNATI 2013-04-30 yes yes
513-518 Verizon CINCINNATI – – yes
513-519 Verizon CINCINNATI – – yes
513-520 Verizon CINCINNATI – – yes
513-521 Altafiber CINCINNATI – – yes
513-522 Altafiber CINCINNATI – – yes
513-523 Frontier OXFORD – – yes
513-524 Frontier OXFORD – – yes
513-525 T-Mobile HAMILTON 2017-03-10 yes yes
513-526 Verizon CINCINNATI – – yes
513-527 Altafiber CINCINNATI – – yes
513-528 Altafiber CLERMONT – – yes
513-529 Altafiber OXFORD – – yes
513-530 Altafiber CINCINNATI – – yes
513-531 Altafiber CINCINNATI – – yes
513-532 Verizon CINCINNATI – – yes
513-533 Altafiber CINCINNATI – – yes
513-534 Altafiber CINCINNATI 2001-05-24 – yes
513-535 Verizon CINCINNATI – – yes
513-536 Altafiber WILLIAMSBG – yes yes
513-537 WADDELL SOLUTIONS GROUP LLC CINCINNATI – yes yes
513-538 Vonage CINCINNATI 2018-05-03 yes yes
513-539 AT&T MONROE – – yes
513-540 Onvoy MIDDLETOWN 2020-02-25 yes yes
513-541 Altafiber CINCINNATI – – yes
513-542 Altafiber CINCINNATI – – yes
513-543 Verizon CINCINNATI – – yes
513-544 T-Mobile CINCINNATI – yes yes
513-545 T-Mobile CINCINNATI – yes yes
513-546 T-Mobile CINCINNATI – yes yes
513-547 Bandwidth TRENTON 2018-08-02 yes yes
513-548 Bandwidth MASON 2018-08-02 yes yes
513-549 Bandwidth CINCINNATI 2008-05-13 yes yes
513-550 AT&T CINCINNATI – yes yes
513-551 Altafiber CINCINNATI – yes yes
513-552 Altafiber CINCINNATI – – yes
513-553 Altafiber CLERMONT – – yes
513-554 Altafiber CINCINNATI – – yes
513-556 Altafiber CINCINNATI – – yes
513-557 Altafiber CINCINNATI – yes yes
513-558 Altafiber CINCINNATI – – yes
513-559 Altafiber CINCINNATI – – yes
513-560 AT&T CINCINNATI – – yes
513-561 Altafiber CINCINNATI – – yes
513-562 Altafiber CINCINNATI – yes yes
513-563 Altafiber CINCINNATI – – yes
513-564 Altafiber CINCINNATI – – yes
513-565 Altafiber CINCINNATI – – yes
513-566 Altafiber CINCINNATI – – yes
513-567 Verizon MIDDLETOWN 2019-01-18 yes yes
513-568 T-Mobile CINCINNATI 2011-02-25 yes yes
513-569 Altafiber CINCINNATI – yes yes
513-570 T-Mobile CINCINNATI 2014-07-16 yes yes
513-571 T-Mobile MIDDLETOWN – yes yes
513-572 CINBELL EXT TERR LLC DBA ALTAFIBER CONNECTED SVCS CINCINNATI 2019-07-03 yes yes
513-573 Brightspeed MASON – – yes
513-574 Altafiber CINCINNATI – – yes
513-575 Altafiber LTL MIAMI – yes yes
513-576 Altafiber LTL MIAMI – – yes
513-577 Altafiber CINCINNATI – – yes
513-578 T-Mobile CINCINNATI 2007-05-23 yes yes
513-579 Altafiber CINCINNATI – – yes
513-580 T-Mobile CINCINNATI 2011-12-21 yes yes
513-581 Verizon CINCINNATI 2012-03-26 yes yes
513-582 Verizon CINCINNATI – – yes
513-583 Altafiber LTL MIAMI – – yes
513-584 Altafiber CINCINNATI – – yes
513-585 Altafiber CINCINNATI – – yes
513-586 Onvoy CINCINNATI 2017-08-18 yes yes
513-587 Lumen CINCINNATI – yes yes
513-588 Altafiber CINCINNATI – – yes
513-589 Altafiber CINCINNATI – – yes
513-590 Spok CINCINNATI – – yes
513-591 Altafiber CINCINNATI – yes yes
513-592 AT&T CINCINNATI 2014-02-26 yes yes
513-593 AT&T OXFORD – yes yes
513-594 Verizon MIDDLETOWN – – yes
513-595 Altafiber CINCINNATI – – yes
513-596 Verizon HAMILTON 2019-11-15 yes yes
513-597 AT&T NEWTONSVL 2016-08-24 yes yes
513-598 Altafiber CINCINNATI – yes yes
513-599 EXIANT COMMUNICATIONS LLC CINCINNATI – yes yes
513-600 Verizon LTL MIAMI 2001-10-09 – yes
513-601 Altafiber CINCINNATI 2012-01-31 yes yes
513-602 T-Mobile CINCINNATI – – yes
513-603 Altafiber HAMILTON – yes yes
513-604 Verizon CINCINNATI – – yes
513-605 Altafiber CINCINNATI – yes yes
513-606 Onvoy MONROE 2023-06-09 yes yes
513-607 Verizon CINCINNATI – – yes
513-608 Verizon CINCINNATI – – yes
513-609 T-Mobile CINCINNATI 2012-03-02 yes yes
513-610 T-Mobile SEVEN MILE 2022-12-08 yes yes
513-612 Altafiber CINCINNATI – yes yes
513-613 Onvoy MORROW 2018-10-23 yes yes
513-614 Verizon CINCINNATI – – yes
513-615 T-Mobile CINCINNATI – yes yes
513-616 T-Mobile CINCINNATI – yes yes
513-617 T-Mobile CINCINNATI – yes yes
513-618 Lumen CINCINNATI – – yes
513-619 Lumen CINCINNATI – yes yes
513-620 T-Mobile CINCINNATI 2012-03-05 yes yes
513-621 Altafiber CINCINNATI – – yes
513-622 Brightspeed MASON – yes yes
513-623 T-Mobile CINCINNATI – yes yes
513-624 Altafiber CINCINNATI – – yes
513-625 Altafiber NEWTONSVL – – yes
513-626 Altafiber CINCINNATI – – yes
513-627 Altafiber CINCINNATI – – yes
513-628 AT&T CINCINNATI 2007-10-16 yes yes
513-629 Altafiber CINCINNATI – yes yes
513-630 Verizon LTL MIAMI 2013-02-13 yes yes
513-631 Altafiber CINCINNATI – – yes
513-632 Altafiber CINCINNATI – – yes
513-633 AT&T CINCINNATI – yes yes
513-634 Altafiber CINCINNATI – – yes
513-635 Verizon CINCINNATI 2011-03-17 yes yes
513-636 Altafiber CINCINNATI – – yes
513-637 Onvoy MASON 2022-11-08 yes yes
513-638 AT&T CINCINNATI – yes yes
513-639 Altafiber CINCINNATI – – yes
513-640 Verizon LTL MIAMI 2020-02-05 yes yes
513-641 Altafiber CINCINNATI – yes yes
513-642 Verizon HAMILTON – yes yes
513-643 Onvoy WILLIAMSBG 2020-06-02 yes yes
513-644 Lumen BETHANY – yes yes
513-645 Lumen HAMILTON – yes yes
513-646 Verizon CINCINNATI – – yes
513-647 Onvoy MIDDLETOWN 2020-06-02 yes yes
513-648 Altafiber CINCINNATI – – yes
513-649 AT&T MIDDLETOWN – yes yes
513-650 Verizon MIDDLETOWN 2023-01-11 yes yes
513-651 Altafiber CINCINNATI – – yes
513-652 T-Mobile CINCINNATI – yes yes
513-653 Twilio CINCINNATI 2020-11-18 yes yes
513-654 Peerless SO LEBANON 2018-10-22 yes yes
513-655 T-Mobile CINCINNATI 2009-09-22 yes yes
513-656 Dish CINCINNATI 2023-03-29 yes yes
513-657 AT&T CINCINNATI 2014-03-04 yes yes
513-658 AT&T CINCINNATI – – yes
513-659 Verizon CINCINNATI – – yes
513-660 Spok CINCINNATI – – yes
513-661 Altafiber CINCINNATI – – yes
513-662 Altafiber CINCINNATI – – yes
513-663 HD CARRIER LLC HAMILTON 2020-03-31 yes yes
513-664 Frontier OXFORD – yes yes
513-665 Altafiber CINCINNATI – – yes
513-666 Onvoy CINCINNATI 2015-02-18 yes yes
513-667 NUSO, LLC CINCINNATI 2012-11-27 yes yes
513-668 AT&T HAMILTON 2006-04-13 yes yes
513-669 Bandwidth LTL MIAMI 2020-06-24 yes yes
513-670 Spok CINCINNATI – – yes
513-671 Altafiber CINCINNATI – – yes
513-672 Altafiber CINCINNATI – – yes
513-673 Verizon CINCINNATI – – yes
513-674 Altafiber CINCINNATI – yes yes
513-675 Verizon CINCINNATI – – yes
513-676 Bandwidth BETHANY 2020-07-01 yes yes
513-677 Altafiber LTL MIAMI – – yes
513-678 T-Mobile CINCINNATI 2001-03-06 yes yes
513-679 Altafiber CINCINNATI – yes yes
513-680 AT&T CINCINNATI – – yes
513-681 Altafiber CINCINNATI – – yes
513-682 Altafiber HAMILTON – – yes
513-683 Altafiber LTL MIAMI – – yes
513-684 Altafiber CINCINNATI – – yes
513-685 Lumen CLERMONT – yes yes
513-686 Altafiber CINCINNATI – yes yes
513-687 Verizon CINCINNATI – – yes
513-688 Altafiber CLERMONT – – yes
513-689 AT&T LEBANON 2020-07-10 yes yes
513-690 T-Mobile SEVEN MILE 2020-07-17 yes yes
513-691 Spok CINCINNATI – – yes
513-692 AT&T CINCINNATI 2009-02-09 yes yes
513-693 AT&T CINCINNATI 2007-03-27 yes yes
513-694 CSC WIRELESS, LLC CINCINNATI 2020-08-07 yes yes
513-695 Lumen LEBANON – – yes
513-696 Lumen LEBANON – yes yes
513-697 Altafiber LTL MIAMI – – yes
513-698 Altafiber CINCINNATI – yes yes
513-699 Verizon CINCINNATI – – yes
513-701 Lumen MASON – yes yes
513-702 Verizon CINCINNATI – – yes
513-703 Verizon CINCINNATI – – yes
513-704 T-Mobile CINCINNATI 2012-03-12 yes yes
513-705 AT&T MIDDLETOWN – yes yes
513-706 Verizon CINCINNATI – – yes
513-707 Lumen LTL MIAMI – yes yes
513-708 Verizon CINCINNATI – – yes
513-709 Verizon CINCINNATI – – yes
513-710 Spok CINCINNATI – – yes
513-712 Verizon BETHANY – yes yes
513-713 Bandwidth CINCINNATI 2012-07-25 yes yes
513-714 Verizon HAMILTON – yes yes
513-715 Onvoy HARRISON – yes yes
513-716 Verizon LTL MIAMI – yes yes
513-717 Verizon SHANDON – yes yes
513-718 Verizon CLERMONT – yes yes
513-719 Verizon CINCINNATI – – yes
513-720 AT&T CINCINNATI – – yes
513-721 Altafiber CINCINNATI – – yes
513-722 Altafiber LTL MIAMI – yes yes
513-723 Altafiber CINCINNATI – – yes
513-724 Altafiber WILLIAMSBG – yes yes
513-725 Peerless CINCINNATI 2014-03-19 yes yes
513-726 Altafiber SEVEN MILE – yes yes
513-727 AT&T MIDDLETOWN – – yes
513-728 Altafiber CINCINNATI – yes yes
513-729 Altafiber CINCINNATI – yes yes
513-730 American Messaging CINCINNATI – – yes
513-731 Altafiber CINCINNATI – – yes
513-732 Altafiber CLERMONT – – yes
513-733 Altafiber CINCINNATI – – yes
513-734 Altafiber BETHEL – yes yes
513-735 Altafiber CLERMONT – – yes
513-736 Altafiber CINCINNATI – – yes
513-737 Altafiber HAMILTON – – yes
513-738 Altafiber SHANDON – yes yes
513-739 AT&T CINCINNATI – – yes
513-740 Onvoy HAMILTON 2022-09-09 yes yes
513-741 Altafiber CINCINNATI – – yes
513-742 Altafiber CINCINNATI – – yes
513-743 IP HORIZON LLC CINCINNATI 2020-09-25 yes yes
513-744 Altafiber CINCINNATI – – yes
513-745 Altafiber CINCINNATI – – yes
513-746 Lumen CINCINNATI 2006-12-14 yes yes
513-747 AT&T HAMILTON 2023-05-09 yes yes
513-748 Verizon CINCINNATI 2008-07-03 yes yes
513-749 Altafiber CINCINNATI – – yes
513-750 Bandwidth CLERMONT 2020-08-14 yes yes
513-751 Altafiber CINCINNATI – – yes
513-752 Altafiber CLERMONT – – yes
513-753 Altafiber CLERMONT – – yes
513-754 Brightspeed MASON – – yes
513-755 Altafiber BETHANY – – yes
513-756 Altafiber REILY – yes yes
513-757 Altafiber REILY – yes yes
513-758 Altafiber CINCINNATI – – yes
513-759 Altafiber BETHANY – – yes
513-760 Bandwidth LTL MIAMI 2013-02-22 yes yes
513-761 Altafiber CINCINNATI – – yes
513-762 Altafiber CINCINNATI – – yes
513-763 Altafiber CINCINNATI – yes yes
513-764 T-Mobile CINCINNATI 2021-04-01 yes yes
513-765 Altafiber CINCINNATI – yes yes
513-766 Lumen CINCINNATI – yes yes
513-767 AT&T NEWTONSVL 2006-04-13 yes yes
513-768 Altafiber CINCINNATI – yes yes
513-769 Altafiber CINCINNATI – – yes
513-770 Altafiber MASON – yes yes
513-771 Altafiber CINCINNATI – – yes
513-772 Altafiber CINCINNATI – – yes
513-773 Lumen HAMILTON – yes yes
513-774 Altafiber LTL MIAMI – – yes
513-775 Onvoy BETHANY 2023-05-15 yes yes
513-776 Onvoy CINCINNATI 2023-05-15 yes yes
513-777 Altafiber BETHANY – – yes
513-778 NUSO, LLC CINCINNATI 2020-10-13 yes yes
513-779 Altafiber BETHANY – – yes
513-780 Verizon CINCINNATI – yes yes
513-781 Verizon LTL MIAMI 2014-08-18 yes yes
513-782 Altafiber CINCINNATI – – yes
513-783 Lumen MIDDLETOWN – yes yes
513-784 Altafiber CINCINNATI – – yes
513-785 Altafiber HAMILTON – yes yes
513-786 Altafiber CINCINNATI – – yes
513-787 Verizon CINCINNATI – – yes
513-788 Lumen HARRISON – yes yes
513-790 Onvoy HAMILTON 2020-12-21 yes yes
513-791 Altafiber CINCINNATI – – yes
513-792 Altafiber CINCINNATI – – yes
513-793 Altafiber CINCINNATI – – yes
513-794 Altafiber CINCINNATI – – yes
513-795 Lumen HAMILTON 2002-04-03 yes yes
513-796 Frontier MORNINGSUN – yes yes
513-797 Altafiber CLERMONT – – yes
513-798 Frontier MORNINGSUN – yes yes
513-799 INVOXIO INCORPORATED CINCINNATI 2018-09-10 yes yes
513-800 AT&T CINCINNATI 2011-01-12 yes yes
513-801 Verizon CINCINNATI 2012-08-09 yes yes
513-802 AT&T CINCINNATI 2013-05-19 yes yes
513-803 Altafiber CINCINNATI 2006-07-05 yes yes
513-804 T-Mobile MIDDLETOWN – yes yes
513-805 Verizon HAMILTON – yes yes
513-806 Verizon CINCINNATI 2012-12-27 yes yes
513-807 T-Mobile CINCINNATI – – yes
513-808 Verizon CINCINNATI 2013-09-09 yes yes
513-809 T-Mobile LEBANON 2021-01-27 yes yes
513-810 Charter CINCINNATI 2019-10-10 yes yes
513-812 NUSO, LLC LEBANON – yes yes
513-813 Onvoy CINCINNATI 2013-11-01 yes yes
513-814 Verizon CINCINNATI 2013-11-05 yes yes
513-815 T-Mobile CINCINNATI 2013-11-05 yes yes
513-816 Bandwidth HAMILTON 2014-08-19 yes yes
513-817 NUSO, LLC CINCINNATI 2014-03-25 yes yes
513-818 Bandwidth CINCINNATI 2014-08-19 yes yes
513-819 American Messaging CINCINNATI – – yes
513-820 Altafiber HAMILTON – – yes
513-821 Altafiber CINCINNATI – – yes
513-822 T-Mobile MIDDLETOWN 2021-01-27 yes yes
513-823 AT&T CINCINNATI 2008-10-08 yes yes
513-824 AT&T CINCINNATI 2007-08-08 yes yes
513-825 Altafiber CINCINNATI – – yes
513-826 AT&T CINCINNATI – – yes
513-827 AT&T CINCINNATI – yes yes
513-828 AT&T CINCINNATI 2009-04-22 yes yes
513-829 Altafiber HAMILTON – – yes
513-830 AT&T CINCINNATI 2001-03-06 yes yes
513-831 Altafiber LTL MIAMI – – yes
513-832 Charter CINCINNATI 2014-12-10 yes yes
513-833 AT&T LTL MIAMI – yes yes
513-834 AT&T CINCINNATI 2008-01-21 yes yes
513-835 CINBELL EXT TERR LLC DBA ALTAFIBER CONNECTED SVCS CINCINNATI 2009-10-06 yes yes
513-836 T-Mobile LEBANON – yes yes
513-837 TON80 COMMUNICATIONS, LLC CINCINNATI 2021-02-09 yes yes
513-838 T-Mobile CINCINNATI 2021-04-13 yes yes
513-839 T-Mobile OXFORD – yes yes
513-840 Onvoy CINCINNATI 2022-08-09 yes yes
513-841 Altafiber CINCINNATI – – yes
513-842 Windstream CINCINNATI – – yes
513-843 Verizon CLERMONT – yes yes
513-844 Altafiber HAMILTON – – yes
513-845 Verizon HARRISON – yes yes
513-846 Verizon CINCINNATI 2008-06-19 yes yes
513-847 Verizon BETHANY – yes yes
513-848 Onvoy MASON 2021-04-29 yes yes
513-849 T-Mobile MIDDLETOWN 2001-04-30 yes yes
513-850 T-Mobile LEBANON – yes yes
513-851 Altafiber CINCINNATI – – yes
513-852 Altafiber CINCINNATI – – yes
513-853 Altafiber CINCINNATI – – yes
513-854 Onvoy CINCINNATI 2015-11-20 yes yes
513-855 Charter WAYNESVL – yes yes
513-856 Altafiber HAMILTON – – yes
513-857 AT&T HAMILTON 2014-12-30 yes yes
513-858 Altafiber HAMILTON – yes yes
513-859 AT&T CINCINNATI 2022-12-08 yes yes
513-860 Altafiber HAMILTON – – yes
513-861 Altafiber CINCINNATI – – yes
513-862 Altafiber CINCINNATI 2007-10-31 yes yes
513-863 Altafiber HAMILTON – – yes
513-864 Altafiber CINCINNATI – – yes
513-865 Altafiber CINCINNATI 2007-10-31 yes yes
513-866 TERRA NOVA TELECOM INC. CINCINNATI 2019-03-19 yes yes
513-867 Altafiber HAMILTON – – yes
513-868 Altafiber HAMILTON – – yes
513-869 Altafiber HAMILTON – yes yes
513-870 Altafiber HAMILTON – – yes
513-871 Altafiber CINCINNATI – – yes
513-872 Altafiber CINCINNATI – yes yes
513-873 Charter CINCINNATI 2013-05-22 yes yes
513-874 Altafiber HAMILTON – – yes
513-875 LITTLE MIAMI COMMUNICATIONS, CORP. FAYETTEVL – yes yes
513-876 Frontier FELICITY – yes yes
513-877 LITTLE MIAMI COMMUNICATIONS, CORP. BUTLERVL – yes yes
513-878 Lumen CINCINNATI 2006-08-21 yes yes
513-879 T-Mobile CINCINNATI 2021-09-08 yes yes
513-880 Onvoy LTL MIAMI 2015-03-24 yes yes
513-881 Altafiber HAMILTON – – yes
513-882 CITYNET OHIO, LLC - OH CINCINNATI 2011-09-13 yes yes
513-883 AT&T HAMILTON 2016-02-01 yes yes
513-884 T-Mobile CINCINNATI – – yes
513-885 T-Mobile CINCINNATI – – yes
513-886 T-Mobile CINCINNATI – – yes
513-887 Altafiber HAMILTON – – yes
513-888 T-Mobile CINCINNATI 2011-02-23 yes yes
513-889 Altafiber HAMILTON – yes yes
513-890 Spok MIDDLETOWN – – yes
513-891 Altafiber CINCINNATI – – yes
513-892 Altafiber HAMILTON – yes yes
513-893 Altafiber HAMILTON – yes yes
513-894 Altafiber HAMILTON – – yes
513-895 Altafiber HAMILTON – yes yes
513-896 Altafiber HAMILTON – yes yes
513-897 Brightspeed WAYNESVL – yes yes
513-898 Lumen CINCINNATI 2001-05-31 yes yes
513-899 Brightspeed MORROW – yes yes
513-900 AT&T LTL MIAMI 2011-02-09 yes yes
513-901 AT&T WILLIAMSBG 2012-07-19 yes yes
513-902 Telnyx CLERMONT 2021-09-09 yes yes
513-903 Verizon CINCINNATI 2013-10-04 yes yes
513-904 Verizon CINCINNATI 2014-09-15 yes yes
513-905 Bandwidth HAMILTON 2021-04-08 yes yes
513-906 Lumen CINCINNATI 2015-05-15 yes yes
513-907 Verizon HAMILTON 2001-11-14 – yes
513-908 T-Mobile CINCINNATI 2014-09-29 yes yes
513-909 Altafiber CINCINNATI 2015-02-13 yes yes
513-910 Verizon CINCINNATI – – yes
513-912 Onvoy HAMILTON 2015-03-24 yes yes
513-913 AT&T CINCINNATI 2014-11-11 yes yes
513-914 Telnyx CINCINNATI – yes yes
513-915 Lumen MIDDLETOWN – yes yes
513-916 Bandwidth OXFORD 2015-05-07 yes yes
513-917 Verizon CINCINNATI – – yes
513-918 T-Mobile CINCINNATI 2015-07-31 yes yes
513-919 Verizon CINCINNATI – – yes
513-920 Spok CINCINNATI – – yes
513-921 Altafiber CINCINNATI – – yes
513-922 Altafiber CINCINNATI – – yes
513-923 Altafiber CINCINNATI – yes yes
513-924 Altafiber CINCINNATI – yes yes
513-925 Altafiber CINCINNATI – – yes
513-926 Verizon CINCINNATI 2012-07-02 yes yes
513-927 Onvoy MIDDLETOWN 2023-06-09 yes yes
513-928 Onvoy CINCINNATI – yes yes
513-929 Altafiber CINCINNATI – – yes
513-930 Bandwidth CINCINNATI 2022-12-08 yes yes
513-931 Altafiber CINCINNATI – – yes
513-932 Brightspeed LEBANON – – yes
513-933 Brightspeed LEBANON – – yes
513-934 Brightspeed LEBANON – yes yes
513-935 Bandwidth BETHANY 2021-11-09 yes yes
513-936 Altafiber CINCINNATI – – yes
513-937 Onvoy CINCINNATI 2022-12-08 yes yes
513-938 Onvoy CINCINNATI 2022-11-08 yes yes
513-939 Altafiber HAMILTON – yes yes
513-940 Bandwidth NEWTONSVL 2015-05-22 yes yes
513-941 Altafiber CINCINNATI – – yes
513-942 Altafiber HAMILTON – – yes
513-943 Altafiber CLERMONT – – yes
513-944 Spok CINCINNATI – – yes
513-945 Altafiber CINCINNATI – – yes
513-946 Altafiber CINCINNATI – – yes
513-947 Altafiber CLERMONT – – yes
513-948 Altafiber CINCINNATI – – yes
513-949 AT&T WAYNESVL 2021-12-08 yes yes
513-951 BARR TELL USA HARRISON – yes yes
513-952 Altafiber CINCINNATI 2015-11-10 yes yes
513-953 WIDE VOICE, LLC - OH HAMILTON 2018-07-16 yes yes
513-954 T-Mobile CINCINNATI – yes yes
513-955 BARR TELL USA CINCINNATI 2022-05-09 yes yes
513-956 Altafiber CINCINNATI – – yes
513-957 T-Mobile SEVEN MILE 2022-06-08 yes yes
513-960 T-Mobile HAMILTON 2022-06-08 yes yes
513-961 Altafiber CINCINNATI – – yes
513-962 AT&T NEWTONSVL 2023-03-20 yes yes
513-963 AT&T MIDDLETOWN 2022-03-09 yes yes
513-964 Peerless CINCINNATI 2016-10-17 yes yes
513-965 Altafiber LTL MIAMI – yes yes
513-966 Telnyx LTL MIAMI – yes yes
513-967 Verizon CINCINNATI – – yes
513-968 AT&T LEBANON 2016-07-26 yes yes
513-969 Verizon CINCINNATI – – yes
513-970 Bandwidth LEBANON 2014-08-18 yes yes
513-971 Spok CINCINNATI – – yes
513-972 Lumen MASON 2012-12-26 yes yes
513-973 Charter HAMILTON 2015-10-16 yes yes
513-974 AT&T MIDDLETOWN 2016-03-11 yes yes
513-975 AT&T CINCINNATI 2016-02-12 yes yes
513-977 Altafiber CINCINNATI – – yes
513-978 Lumen CINCINNATI 2014-10-06 yes yes
513-979 Altafiber CINCINNATI – yes yes
513-980 Verizon OXFORD 2023-01-11 yes yes
513-981 Altafiber CINCINNATI – yes yes
513-982 Peerless SEVEN MILE 2015-12-16 yes yes
513-983 Altafiber CINCINNATI – – yes
513-984 Altafiber CINCINNATI – – yes
513-985 Altafiber CINCINNATI – – yes
513-986 Onvoy CLERMONT 2015-08-28 yes yes
513-987 Bandwidth LTL MIAMI 2015-07-30 yes yes
513-988 AT&T TRENTON – yes yes
513-990 Verizon HAMILTON 2023-02-08 yes yes
513-991 Onvoy CINCINNATI 2020-07-16 yes yes
513-992 Onvoy LTL MIAMI 2023-02-28 yes yes
513-993 HD CARRIER LLC CINCINNATI 2018-12-20 yes yes
513-994 Onvoy MASON 2023-03-01 yes yes
513-995 Onvoy BETHEL 2020-05-28 yes yes
513-996 T-Mobile CINCINNATI 2015-06-25 yes yes
513-997 Verizon MIDDLETOWN 2015-05-19 yes yes
513-998 Verizon LTL MIAMI 2022-04-08 yes yes
513-999 Onvoy CINCINNATI 2017-09-29 yes yes

Frequently asked

How many prefixes does area code 513 have?

784 NXX blocks are assigned of 786 possible. Each block is 10,000 consecutive numbers, so the code currently covers about 7,840 thousand-number ranges across 25 rate centers.

What do the first three digits after 513 tell me?

They identify the block, which tells you the rate center it was allocated to and the carrier that received it. They do not tell you who serves the number today: portability moves numbers between carriers, and pooling splits a block between several of them.

Is a 513 prefix tied to a specific town?

To a rate center, which is billing geography rather than a town. NANPA abbreviates rate center names to ten characters and in large metros uses zone codes, so the name is a NANPA label, not a place name.

What does “pooled” mean in the 513 table?

That the block is in thousands-block pooling: carriers draw 1,000-number lots from it instead of taking all 10,000. 454 of 513's blocks are pooled, which is how regulators slowed down area code exhaustion – and why one prefix can belong to several carriers.

Source and limits

NANPA CO Code Assignment Records, all states, utilized codes, file updated 11/01/2026 – the rows where the record's Use field is “AS” (assigned). Unavailable codes are excluded. The records say who received a block and when, not who serves a particular number today.

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