SNCA SGCC prefixes in area code 661
NANPA records 29 assigned NXX blocks to rate center SNCA SGCC in area code 661, 4.3% of the 674 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. 11 holders hold those blocks, the largest being PACIFIC BELL (10), METROPCS NETWORKS, LLC (4), ONVOY, LLC - CA (4). The earliest assignment on record here is 2002-02-11 and the most recent 2026-01-30. 23 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 661-212 | T-Mobile METROPCS NETWORKS, LLC | 2002-02-11 | yes | yes |
| 661-250 | AT&T PACIFIC BELL | – | yes | yes |
| 661-251 | AT&T PACIFIC BELL | – | no | yes |
| 661-252 | AT&T PACIFIC BELL | – | no | yes |
| 661-263 | AT&T PACIFIC BELL | – | yes | yes |
| 661-296 | AT&T PACIFIC BELL | – | no | yes |
| 661-297 | AT&T PACIFIC BELL | – | no | yes |
| 661-298 | AT&T PACIFIC BELL | – | yes | yes |
| 661-299 | AT&T PACIFIC BELL | – | yes | yes |
| 661-309 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 661-313 | T-Mobile METROPCS NETWORKS, LLC | – | yes | yes |
| 661-347 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2002-02-20 | yes | yes |
| 661-360 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2003-01-13 | yes | yes |
| 661-367 | Windstream PAETEC ITEL, LLC | – | yes | yes |
| 661-424 | AT&T PACIFIC BELL | – | yes | yes |
| 661-430 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 661-467 | Onvoy ONVOY, LLC - CA | – | no | yes |
| 661-513 | AT&T PACIFIC BELL | – | yes | yes |
| 661-517 | Onvoy ONVOY, LLC - CA | 2023-06-27 | yes | yes |
| 661-523 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2014-10-08 | yes | yes |
| 661-542 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 661-592 | T-Mobile METROPCS NETWORKS, LLC | 2015-06-09 | yes | yes |
| 661-620 | NORTH COUNTY COMMUNICATION CORPORATION - CA | – | no | yes |
| 661-621 | T-Mobile METROPCS NETWORKS, LLC | – | yes | yes |
| 661-660 | Charter ONVOY SPECTRUM, LLC | 2021-02-03 | yes | yes |
| 661-673 | IP HORIZON LLC | – | yes | yes |
| 661-686 | Onvoy ONVOY, LLC - CA | 2026-01-30 | yes | yes |
| 661-786 | FRACTEL, LLC | 2019-05-13 | yes | yes |
| 661-977 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | 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 | 10 | 34.5% |
| METROPCS NETWORKS, LLC | T-Mobile | 4 | 13.8% |
| ONVOY, LLC - CA | Onvoy | 4 | 13.8% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 3 | 10.3% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 2 | 6.9% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | Verizon | 1 | 3.4% |
| PAETEC ITEL, LLC | Windstream | 1 | 3.4% |
| NORTH COUNTY COMMUNICATION CORPORATION - CA | – | 1 | 3.4% |
| ONVOY SPECTRUM, LLC | Charter | 1 | 3.4% |
| IP HORIZON LLC | – | 1 | 3.4% |
| FRACTEL, LLC | – | 1 | 3.4% |
Frequently asked
Which prefixes belong to SNCA SGCC in area code 661?
29 blocks: 212, 250, 251, 252, 263, 296, 297, 298, 299, 309, 313, 347 and 17 more, all listed in the table above.
Which carriers have numbers in SNCA SGCC?
PACIFIC BELL (10 blocks), METROPCS NETWORKS, LLC (4 blocks), ONVOY, LLC - CA (4 blocks), LEVEL 3 COMMUNICATIONS, LLC - CA (3 blocks), NEW CINGULAR WIRELESS PCS, LLC (2 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is SNCA SGCC 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.