SUNNYVALE prefixes in area code 408
NANPA records 96 assigned NXX blocks to rate center SUNNYVALE in area code 408, 12.2% of the 787 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. 14 holders hold those blocks, the largest being PACIFIC BELL (45), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (9), NEW CINGULAR WIRELESS PCS, LLC (8). The earliest assignment on record here is 2001-02-28 and the most recent 2012-03-16. 68 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 669 – overlay codes cover the same geography, so a rate center is served by all of them.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 408-203 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 408-212 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 408-215 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 408-220 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 408-222 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | no | yes |
| 408-230 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 408-242 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 408-245 | AT&T PACIFIC BELL | – | no | yes |
| 408-290 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2011-07-22 | yes | yes |
| 408-306 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-06-25 | yes | yes |
| 408-328 | AT&T PACIFIC BELL | – | no | yes |
| 408-329 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2002-09-16 | yes | yes |
| 408-331 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | no | yes |
| 408-336 | AT&T PACIFIC BELL | 2006-04-19 | yes | yes |
| 408-338 | AT&T PACIFIC BELL | 2006-04-07 | yes | yes |
| 408-349 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | no | yes |
| 408-368 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2002-02-22 | yes | yes |
| 408-373 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 408-393 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 408-394 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 408-400 | AT&T PACIFIC BELL | – | yes | yes |
| 408-419 | AT&T PACIFIC BELL | 2006-11-27 | yes | yes |
| 408-420 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 408-431 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 408-462 | Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 2009-09-11 | yes | yes |
| 408-469 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 408-470 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 408-475 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2011-05-10 | yes | yes |
| 408-480 | T-Mobile T-MOBILE USA, INC. | 2001-12-28 | yes | yes |
| 408-481 | AT&T PACIFIC BELL | – | no | yes |
| 408-498 | Comcast COMCAST PHONE OF CALIFORNIA, LLC | 2011-07-29 | yes | yes |
| 408-505 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 408-507 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 408-522 | AT&T PACIFIC BELL | – | yes | yes |
| 408-523 | AT&T PACIFIC BELL | – | no | yes |
| 408-524 | AT&T PACIFIC BELL | – | no | yes |
| 408-530 | AT&T PACIFIC BELL | – | no | yes |
| 408-541 | AT&T PACIFIC BELL | – | yes | yes |
| 408-542 | AT&T PACIFIC BELL | – | yes | yes |
| 408-543 | AT&T PACIFIC BELL | – | yes | yes |
| 408-548 | AT&T PACIFIC BELL | – | yes | yes |
| 408-584 | AT&T PACIFIC BELL | – | no | yes |
| 408-585 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 408-593 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 408-594 | T-Mobile METROPCS, INC. | – | yes | yes |
| 408-598 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2007-04-19 | yes | yes |
| 408-604 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2012-01-18 | yes | yes |
| 408-616 | AT&T PACIFIC BELL | – | yes | yes |
| 408-617 | AT&T PACIFIC BELL | – | yes | yes |
| 408-636 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 408-663 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2010-11-16 | yes | yes |
| 408-664 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 2012-03-16 | yes | yes |
| 408-675 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2010-06-04 | yes | yes |
| 408-685 | T-Mobile METROPCS, INC. | 2001-02-28 | yes | yes |
| 408-701 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 408-702 | Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | – | yes | yes |
| 408-716 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 408-718 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 408-720 | AT&T PACIFIC BELL | – | no | yes |
| 408-721 | AT&T PACIFIC BELL | – | yes | yes |
| 408-730 | AT&T PACIFIC BELL | – | no | yes |
| 408-731 | AT&T PACIFIC BELL | – | yes | yes |
| 408-732 | AT&T PACIFIC BELL | – | no | yes |
| 408-733 | AT&T PACIFIC BELL | – | no | yes |
| 408-734 | AT&T PACIFIC BELL | – | yes | yes |
| 408-735 | AT&T PACIFIC BELL | – | no | yes |
| 408-736 | AT&T PACIFIC BELL | – | no | yes |
| 408-737 | AT&T PACIFIC BELL | – | no | yes |
| 408-738 | AT&T PACIFIC BELL | – | yes | yes |
| 408-739 | AT&T PACIFIC BELL | – | no | yes |
| 408-742 | AT&T PACIFIC BELL | – | no | yes |
| 408-743 | AT&T PACIFIC BELL | – | yes | yes |
| 408-744 | AT&T PACIFIC BELL | – | yes | yes |
| 408-745 | AT&T PACIFIC BELL | – | yes | yes |
| 408-746 | AT&T PACIFIC BELL | – | yes | yes |
| 408-747 | AT&T PACIFIC BELL | – | yes | yes |
| 408-749 | AT&T PACIFIC BELL | – | no | yes |
| 408-752 | AT&T PACIFIC BELL | – | yes | yes |
| 408-756 | AT&T PACIFIC BELL | – | no | yes |
| 408-757 | T-Mobile METROPCS, INC. | – | yes | yes |
| 408-769 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | yes | yes |
| 408-773 | AT&T PACIFIC BELL | – | yes | yes |
| 408-774 | AT&T PACIFIC BELL | – | yes | yes |
| 408-789 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 408-822 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 408-830 | AT&T PACIFIC BELL | – | yes | yes |
| 408-835 | T-Mobile METROPCS, INC. | 2001-04-25 | yes | yes |
| 408-836 | T-Mobile METROPCS, INC. | 2001-04-25 | yes | yes |
| 408-900 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 408-910 | T-Mobile METROPCS, INC. | 2001-04-25 | yes | yes |
| 408-936 | AT&T PACIFIC BELL | – | no | yes |
| 408-940 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2008-05-28 | yes | yes |
| 408-962 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 408-990 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 408-991 | AT&T PACIFIC BELL | – | yes | yes |
| 408-992 | AT&T PACIFIC BELL | – | 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 |
|---|---|---|---|
| PACIFIC BELL | AT&T | 45 | 46.9% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 9 | 9.4% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 8 | 8.3% |
| T-MOBILE USA, INC. | T-Mobile | 7 | 7.3% |
| METROPCS, INC. | T-Mobile | 6 | 6.2% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 5 | 5.2% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 3 | 3.1% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 3 | 3.1% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | Verizon | 2 | 2.1% |
| BANDWIDTH.COM CLEC, LLC - CA | Bandwidth | 2 | 2.1% |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | Lumen | 2 | 2.1% |
| ONVOY, LLC - CA | Onvoy | 2 | 2.1% |
| COMCAST PHONE OF CALIFORNIA, LLC | Comcast | 1 | 1% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | TPx | 1 | 1% |
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 SUNNYVALE in area code 408?
96 blocks: 203, 212, 215, 220, 222, 230, 242, 245, 290, 306, 328, 329 and 84 more, all listed in the table above.
Which carriers have numbers in SUNNYVALE?
PACIFIC BELL (45 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (9 blocks), NEW CINGULAR WIRELESS PCS, LLC (8 blocks), T-MOBILE USA, INC. (7 blocks), METROPCS, INC. (6 blocks), LEVEL 3 COMMUNICATIONS, LLC - CA (5 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is SUNNYVALE 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.