CLAYTON prefixes in area code 925
NANPA records 12 assigned NXX blocks to rate center CLAYTON in area code 925, 1.9% of the 640 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. 8 holders hold those blocks, the largest being PACIFIC BELL (3), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (2), T-MOBILE USA, INC. (2). The earliest assignment on record here is 2001-07-17 and the most recent 2002-09-20. 11 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 codes 208, 217, 315, 317 – 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 |
|---|---|---|---|---|
| 925-276 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 925-304 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 925-524 | AT&T PACIFIC BELL | – | yes | yes |
| 925-567 | T-Mobile T-MOBILE USA, INC. | 2001-07-17 | yes | yes |
| 925-672 | AT&T PACIFIC BELL | – | no | yes |
| 925-673 | AT&T PACIFIC BELL | – | yes | yes |
| 925-690 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 925-693 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 925-844 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 2001-07-17 | yes | yes |
| 925-889 | MATRIX TELECOM, LLC. S/I/I TNCI - CA | – | yes | yes |
| 925-914 | T-Mobile T-MOBILE USA, INC. | 2002-09-20 | yes | yes |
| 925-993 | HD CARRIER LLC | – | 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 | 3 | 25% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 2 | 16.7% |
| T-MOBILE USA, INC. | T-Mobile | 2 | 16.7% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 1 | 8.3% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 1 | 8.3% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | TPx | 1 | 8.3% |
| MATRIX TELECOM, LLC. S/I/I TNCI - CA | – | 1 | 8.3% |
| HD CARRIER LLC | – | 1 | 8.3% |
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 CLAYTON in area code 925?
12 blocks: 276, 304, 524, 567, 672, 673, 690, 693, 844, 889, 914, 993. The table above gives the holder of each.
Which carriers have numbers in CLAYTON?
PACIFIC BELL (3 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (2 blocks), T-MOBILE USA, INC. (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - CA (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - CA (1 block), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is CLAYTON 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.