RED BLUFF prefixes in area code 530
NANPA records 14 assigned NXX blocks to rate center RED BLUFF in area code 530, 1.8% of the 782 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. 9 holders hold those blocks, the largest being PACIFIC BELL (3), T-MOBILE USA, INC. (2), ONVOY, LLC - CA (2). The earliest assignment on record here is 2001-03-01 and the most recent 2026-03-30. 12 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 837 – 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 |
|---|---|---|---|---|
| 530-366 | AT&T AT&T - LOCAL | – | yes | yes |
| 530-526 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | yes | yes |
| 530-527 | AT&T PACIFIC BELL | – | no | yes |
| 530-528 | AT&T PACIFIC BELL | – | yes | yes |
| 530-529 | AT&T PACIFIC BELL | – | no | yes |
| 530-567 | T-Mobile T-MOBILE USA, INC. | 2001-03-01 | yes | yes |
| 530-602 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 530-690 | Charter CHARTER IP ENABLED SERVICES, LLC | – | yes | yes |
| 530-707 | EXIANT COMMUNICATIONS LLC | 2026-03-30 | yes | yes |
| 530-727 | Charter CHARTER IP ENABLED SERVICES, LLC | – | yes | yes |
| 530-736 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-10-18 | yes | yes |
| 530-737 | IP HORIZON LLC | – | yes | yes |
| 530-765 | Onvoy ONVOY, LLC - CA | 2024-03-11 | yes | yes |
| 530-840 | T-Mobile T-MOBILE USA, INC. | 2002-04-15 | 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 | 21.4% |
| T-MOBILE USA, INC. | T-Mobile | 2 | 14.3% |
| ONVOY, LLC - CA | Onvoy | 2 | 14.3% |
| CHARTER IP ENABLED SERVICES, LLC | Charter | 2 | 14.3% |
| AT&T - LOCAL | AT&T | 1 | 7.1% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 1 | 7.1% |
| EXIANT COMMUNICATIONS LLC | – | 1 | 7.1% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 1 | 7.1% |
| IP HORIZON LLC | – | 1 | 7.1% |
Frequently asked
Which prefixes belong to RED BLUFF in area code 530?
14 blocks: 366, 526, 527, 528, 529, 567, 602, 690, 707, 727, 736, 737 and 2 more, all listed in the table above.
Which carriers have numbers in RED BLUFF?
PACIFIC BELL (3 blocks), T-MOBILE USA, INC. (2 blocks), ONVOY, LLC - CA (2 blocks), CHARTER IP ENABLED SERVICES, LLC (2 blocks), AT&T - LOCAL (1 block), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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 RED BLUFF 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.