BOULDERCRK prefixes in area code 831
NANPA records 9 assigned NXX blocks to rate center BOULDERCRK in area code 831, 2.2% of the 406 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 ONVOY, LLC - CA (2), TELEPORT COMMUNICATIONS AMERICA, LLC - CA (1), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA (1). The earliest assignment on record here is 2020-12-21 and the most recent 2022-02-23. 8 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 |
|---|---|---|---|---|
| 831-217 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 831-337 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | – | yes | yes |
| 831-338 | AT&T PACIFIC BELL | – | yes | yes |
| 831-366 | TON80 COMMUNICATIONS, LLC | 2022-02-23 | yes | yes |
| 831-432 | FRACTEL, LLC | 2020-12-21 | yes | yes |
| 831-533 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 831-610 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 831-618 | Onvoy ONVOY, LLC - CA | – | no | yes |
| 831-703 | Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - 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 |
|---|---|---|---|
| ONVOY, LLC - CA | Onvoy | 2 | 22.2% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 1 | 11.1% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | Verizon | 1 | 11.1% |
| PACIFIC BELL | AT&T | 1 | 11.1% |
| TON80 COMMUNICATIONS, LLC | – | 1 | 11.1% |
| FRACTEL, LLC | – | 1 | 11.1% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 1 | 11.1% |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | Lumen | 1 | 11.1% |
Frequently asked
Which prefixes belong to BOULDERCRK in area code 831?
9 blocks: 217, 337, 338, 366, 432, 533, 610, 618, 703. The table above gives the holder of each.
Which carriers have numbers in BOULDERCRK?
ONVOY, LLC - CA (2 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - CA (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA (1 block), PACIFIC BELL (1 block), TON80 COMMUNICATIONS, LLC (1 block), FRACTEL, LLC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is BOULDERCRK 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.