ORINDA prefixes in area code 925
NANPA records 12 assigned NXX blocks to rate center ORINDA 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 (3), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA (1). 10 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 |
|---|---|---|---|---|
| 925-253 | AT&T PACIFIC BELL | – | no | yes |
| 925-254 | AT&T PACIFIC BELL | – | no | yes |
| 925-255 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 925-257 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 925-258 | AT&T PACIFIC BELL | – | yes | yes |
| 925-259 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 925-317 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | – | yes | yes |
| 925-386 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 925-402 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 925-438 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 925-528 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 925-885 | MATRIX TELECOM, LLC. S/I/I TNCI - 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 | 3 | 25% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 3 | 25% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | Verizon | 1 | 8.3% |
| BANDWIDTH.COM CLEC, LLC - CA | Bandwidth | 1 | 8.3% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 1 | 8.3% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | TPx | 1 | 8.3% |
| T-MOBILE USA, INC. | T-Mobile | 1 | 8.3% |
| MATRIX TELECOM, LLC. S/I/I TNCI - CA | – | 1 | 8.3% |
Frequently asked
Which prefixes belong to ORINDA in area code 925?
12 blocks: 253, 254, 255, 257, 258, 259, 317, 386, 402, 438, 528, 885. The table above gives the holder of each.
Which carriers have numbers in ORINDA?
PACIFIC BELL (3 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (3 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA (1 block), BANDWIDTH.COM CLEC, 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 ORINDA 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.