Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records
GREEN BAY prefixes in area code 920
NANPA records 111 assigned NXX blocks to rate center GREEN BAY in area code 920, 14.1% of the 785 blocks assigned in the code. A rate center is the billing geography a block is allocated to – NANPA truncates the name to ten characters, so read it as a NANPA label rather than a town. 32 holders hold those blocks, the largest being WISCONSIN BELL INC (34), NEW CELL DBA CELLCOM (11), ONVOY, LLC - WI (6). The earliest assignment on record here is 2001-02-14 and the most recent 2026-09-03. 65 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area code 274 – overlay codes cover the same geography, so a rate center is served by all of them.
111 assigned blocks – 14.1% of 920
32 holders of record
65 of them pooled in 1,000-number lots
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 920-217 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 920-227 | Lumen LEVEL 3 COMMUNICATIONS, LLC - WI | – | yes | yes |
| 920-246 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | – | no | yes |
| 920-247 | Vonage VONAGE AMERICA LLC | 2017-12-18 | yes | yes |
| 920-264 | Lumen LEVEL 3 COMMUNICATIONS, LLC - WI | – | yes | yes |
| 920-265 | T-Mobile T-MOBILE USA, INC. | 2001-08-09 | yes | yes |
| 920-271 | TDS TDS METROCOM, LLC | – | no | yes |
| 920-272 | NET LEC, INC. | – | no | yes |
| 920-283 | Peerless PEERLESS NETWORK OF WISCONSIN, LLC - WI | 2016-10-17 | yes | yes |
| 920-288 | AT&T WISCONSIN BELL INC | 2001-04-27 | yes | yes |
| 920-301 | Onvoy ONVOY, LLC - WI | 2016-04-27 | yes | yes |
| 920-305 | Onvoy ONVOY, LLC - WI | – | yes | yes |
| 920-321 | Windstream PAETEC ITEL, LLC | – | yes | yes |
| 920-327 | AT&T WISCONSIN BELL INC | 2002-05-28 | yes | yes |
| 920-328 | Lumen LEVEL 3 COMMUNICATIONS, LLC - WI | – | yes | yes |
| 920-360 | UNITED STATES CELLULAR - WI | – | yes | yes |
| 920-362 | UNITED STATES CELLULAR - WI | – | yes | yes |
| 920-366 | UNITED STATES CELLULAR - WI | – | yes | yes |
| 920-370 | UNITED STATES CELLULAR - WI | – | yes | yes |
| 920-371 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 920-384 | HD CARRIER LLC | 2020-10-02 | yes | yes |
| 920-391 | AT&T WISCONSIN BELL INC | – | yes | yes |
| 920-393 | Charter TWC IP ENABLED SERVICES, LLC | 2010-11-30 | yes | yes |
| 920-396 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2017-07-26 | yes | yes |
| 920-401 | INTEGRATED PATH COMMUNICATIONS, LLC - WI | 2018-06-22 | yes | yes |
| 920-405 | AT&T WISCONSIN BELL INC | – | no | yes |
| 920-406 | AT&T WISCONSIN BELL INC | – | no | yes |
| 920-412 | UNITED STATES CELLULAR - WI | – | yes | yes |
| 920-417 | AIRESPRING, INC. | 2020-09-30 | yes | yes |
| 920-429 | AT&T WISCONSIN BELL INC | – | yes | yes |
| 920-430 | AT&T WISCONSIN BELL INC | – | yes | yes |
| 920-431 | AT&T WISCONSIN BELL INC | – | no | yes |
| 920-432 | AT&T WISCONSIN BELL INC | – | no | yes |
| 920-433 | AT&T WISCONSIN BELL INC | – | no | yes |
| 920-434 | AT&T WISCONSIN BELL INC | – | no | yes |
| 920-435 | AT&T WISCONSIN BELL INC | – | no | yes |
| 920-436 | AT&T WISCONSIN BELL INC | – | no | yes |
| 920-437 | AT&T WISCONSIN BELL INC | – | no | yes |
| 920-438 | AT&T WISCONSIN BELL INC | – | yes | yes |
| 920-440 | Spok SPOK, INC. | – | no | yes |
| 920-444 | AT&T WISCONSIN BELL INC | – | no | yes |
| 920-445 | AT&T WISCONSIN BELL INC | – | yes | yes |
| 920-448 | AT&T WISCONSIN BELL INC | – | yes | yes |
| 920-455 | AT&T WISCONSIN BELL INC | – | yes | yes |
| 920-461 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 2012-12-26 | yes | yes |
| 920-465 | AT&T WISCONSIN BELL INC | – | no | yes |
| 920-466 | HD CARRIER LLC | 2025-07-14 | yes | yes |
| 920-468 | AT&T WISCONSIN BELL INC | – | no | yes |
| 920-469 | AT&T WISCONSIN BELL INC | – | no | yes |
| 920-471 | Lumen LEVEL 3 COMMUNICATIONS, LLC - WI | 2002-05-13 | yes | yes |
| 920-480 | IP HORIZON LLC | 2021-05-03 | yes | yes |
| 920-489 | NUSO, LLC | 2013-03-08 | yes | yes |
| 920-490 | AT&T WISCONSIN BELL INC | – | no | yes |
| 920-491 | AT&T WISCONSIN BELL INC | – | no | yes |
| 920-492 | AT&T WISCONSIN BELL INC | – | yes | yes |
| 920-494 | AT&T WISCONSIN BELL INC | – | no | yes |
| 920-496 | AT&T WISCONSIN BELL INC | – | no | yes |
| 920-497 | AT&T WISCONSIN BELL INC | – | no | yes |
| 920-498 | AT&T WISCONSIN BELL INC | – | no | yes |
| 920-499 | AT&T WISCONSIN BELL INC | – | no | yes |
| 920-501 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2019-04-15 | yes | yes |
| 920-510 | Charter ONVOY SPECTRUM, LLC | 2019-10-23 | yes | yes |
| 920-530 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2008-03-27 | yes | yes |
| 920-544 | Charter TWC IP ENABLED SERVICES, LLC | – | yes | yes |
| 920-548 | TDS TDS METROCOM, LLC | 2002-05-17 | yes | yes |
| 920-556 | American Messaging AMERICAN MESSAGING SERVICES, LLC | – | no | yes |
| 920-562 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2003-02-18 | no | yes |
| 920-569 | Windstream PAETEC ITEL, LLC | 2002-07-25 | yes | yes |
| 920-592 | AT&T WISCONSIN BELL INC | – | no | yes |
| 920-593 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2003-07-15 | yes | yes |
| 920-600 | Onvoy ONVOY, LLC - WI | 2015-11-17 | yes | yes |
| 920-606 | Verizon NEW CELL DBA CELLCOM | – | no | yes |
| 920-609 | Verizon NEW CELL DBA CELLCOM | – | no | yes |
| 920-610 | Windstream PAETEC ITEL, LLC | 2022-02-25 | yes | yes |
| 920-613 | Verizon NEW CELL DBA CELLCOM | – | no | yes |
| 920-615 | Verizon NEW CELL DBA CELLCOM | – | no | yes |
| 920-617 | NET LEC, INC. | – | no | yes |
| 920-619 | Verizon NEW CELL DBA CELLCOM | – | no | yes |
| 920-621 | Verizon NEW CELL DBA CELLCOM | – | no | yes |
| 920-634 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC WI | – | yes | yes |
| 920-639 | Verizon NEW CELL DBA CELLCOM | – | no | yes |
| 920-641 | PENINSULA FIBER NETWORK, LLC - WI | 2021-07-15 | yes | yes |
| 920-655 | Verizon NEW CELL DBA CELLCOM | – | no | yes |
| 920-660 | Verizon NEW CELL DBA CELLCOM | – | no | yes |
| 920-661 | AT&T WISCONSIN BELL INC | – | yes | yes |
| 920-662 | AT&T WISCONSIN BELL INC | – | yes | yes |
| 920-664 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | yes | yes |
| 920-665 | Spok SPOK, INC. | – | no | yes |
| 920-676 | Verizon NEW CELL DBA CELLCOM | – | no | yes |
| 920-680 | Verizon NEW CELL DBA CELLCOM | – | no | yes |
| 920-704 | American Messaging AMERICAN MESSAGING SERVICES, LLC | – | no | yes |
| 920-705 | American Messaging AMERICAN MESSAGING SERVICES, LLC | – | no | yes |
| 920-712 | TDS TDS METROCOM, LLC | – | yes | yes |
| 920-713 | TDS TDS METROCOM, LLC | – | yes | yes |
| 920-719 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 2026-09-03 | yes | no |
| 920-737 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | – | no | yes |
| 920-770 | Peerless PEERLESS NETWORK OF WISCONSIN, LLC - WI | 2014-05-08 | yes | yes |
| 920-777 | Onvoy ONVOY, LLC - WI | 2015-01-27 | yes | yes |
| 920-784 | Onvoy ONVOY, LLC - WI | 2006-02-13 | yes | yes |
| 920-785 | Onvoy ONVOY, LLC - WI | 2008-10-23 | yes | yes |
| 920-819 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2001-02-14 | no | yes |
| 920-857 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 2006-04-22 | yes | yes |
| 920-873 | Twilio TWILIO INTERNATIONAL, INC. | 2021-12-02 | yes | yes |
| 920-883 | AT&T WISCONSIN BELL INC | – | yes | yes |
| 920-884 | TDS TDS METROCOM, LLC | – | no | yes |
| 920-888 | Telnyx TELNYX LLC | – | yes | yes |
| 920-930 | COMMIO, LLC | 2019-04-18 | yes | yes |
| 920-932 | FRACTEL, LLC | 2020-08-05 | yes | yes |
| 920-940 | MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS | 2008-07-30 | yes | yes |
| 920-965 | Windstream PAETEC ITEL, LLC | – | no | yes |
| 920-977 | T-Mobile METROPCS, INC. | 2018-12-13 | yes | yes |
The holder is who received the block from the numbering administrator. It is not necessarily the carrier serving a given number: numbers move with their owners, and a pooled block is shared.
Who holds the blocks
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| WISCONSIN BELL INC | AT&T | 34 | 30.6% |
| NEW CELL DBA CELLCOM | Verizon | 11 | 9.9% |
| ONVOY, LLC - WI | Onvoy | 6 | 5.4% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 6 | 5.4% |
| TDS METROCOM, LLC | TDS | 5 | 4.5% |
| UNITED STATES CELLULAR - WI | – | 5 | 4.5% |
| LEVEL 3 COMMUNICATIONS, LLC - WI | Lumen | 4 | 3.6% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | Verizon | 4 | 3.6% |
| PAETEC ITEL, LLC | Windstream | 4 | 3.6% |
| T-MOBILE USA, INC. | T-Mobile | 3 | 2.7% |
| AMERICAN MESSAGING SERVICES, LLC | American Messaging | 3 | 2.7% |
| NET LEC, INC. | – | 2 | 1.8% |
| PEERLESS NETWORK OF WISCONSIN, LLC - WI | Peerless | 2 | 1.8% |
| HD CARRIER LLC | – | 2 | 1.8% |
| TWC IP ENABLED SERVICES, LLC | Charter | 2 | 1.8% |
| SPOK, INC. | Spok | 2 | 1.8% |
| VONAGE AMERICA LLC | Vonage | 1 | 0.9% |
| INTEGRATED PATH COMMUNICATIONS, LLC - WI | – | 1 | 0.9% |
| AIRESPRING, INC. | – | 1 | 0.9% |
| IP HORIZON LLC | – | 1 | 0.9% |
| NUSO, LLC | – | 1 | 0.9% |
| ONVOY SPECTRUM, LLC | Charter | 1 | 0.9% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 1 | 0.9% |
| TELEPORT COMMUNICATIONS AMERICA, LLC WI | AT&T | 1 | 0.9% |
| PENINSULA FIBER NETWORK, LLC - WI | – | 1 | 0.9% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | TPx | 1 | 0.9% |
| TWILIO INTERNATIONAL, INC. | Twilio | 1 | 0.9% |
| TELNYX LLC | Telnyx | 1 | 0.9% |
| COMMIO, LLC | – | 1 | 0.9% |
| FRACTEL, LLC | – | 1 | 0.9% |
| MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS | – | 1 | 0.9% |
| METROPCS, INC. | T-Mobile | 1 | 0.9% |
Same rate center in other codes
Overlay codes cover the same geography, so one rate center is served by all of them.
Frequently asked
Which prefixes belong to GREEN BAY in area code 920?
111 blocks: 217, 227, 246, 247, 264, 265, 271, 272, 283, 288, 301, 305 and 99 more, all listed in the table above.
Which carriers have numbers in GREEN BAY?
WISCONSIN BELL INC (34 blocks), NEW CELL DBA CELLCOM (11 blocks), ONVOY, LLC - WI (6 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (6 blocks), TDS METROCOM, LLC (5 blocks), UNITED STATES CELLULAR - WI (5 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is GREEN BAY a city?
It is a rate center – the unit NANPA allocates number blocks to. Its name is abbreviated to ten characters and is not necessarily a settlement: we print it as recorded rather than guess at the full name.