DAVIS prefixes in area code 530
NANPA records 33 assigned NXX blocks to rate center DAVIS in area code 530, 4.2% 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. 12 holders hold those blocks, the largest being PACIFIC BELL (11), NEW CINGULAR WIRELESS PCS, LLC (5), T-MOBILE USA, INC. (3). The earliest assignment on record here is 2001-06-26 and the most recent 2026-05-06. 24 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 304, 580, 681, 779 – 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 |
|---|---|---|---|---|
| 530-204 | IP HORIZON LLC | – | yes | yes |
| 530-219 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 530-220 | T-Mobile T-MOBILE USA, INC. | 2001-12-26 | yes | yes |
| 530-231 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 530-297 | AT&T PACIFIC BELL | – | yes | yes |
| 530-298 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 530-302 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 530-304 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 530-341 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 530-376 | COMMIO, LLC | 2023-12-21 | yes | yes |
| 530-400 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 530-554 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | 2001-08-22 | yes | yes |
| 530-564 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 530-574 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | yes | yes |
| 530-601 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2002-01-29 | yes | yes |
| 530-746 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | – | yes | yes |
| 530-747 | AT&T PACIFIC BELL | – | yes | yes |
| 530-750 | AT&T PACIFIC BELL | – | yes | yes |
| 530-752 | AT&T PACIFIC BELL | – | no | yes |
| 530-753 | AT&T PACIFIC BELL | – | no | yes |
| 530-754 | AT&T PACIFIC BELL | – | no | yes |
| 530-756 | AT&T PACIFIC BELL | – | no | yes |
| 530-757 | AT&T PACIFIC BELL | – | no | yes |
| 530-758 | AT&T PACIFIC BELL | – | no | yes |
| 530-759 | AT&T PACIFIC BELL | – | yes | yes |
| 530-760 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | – | yes | yes |
| 530-761 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | – | yes | yes |
| 530-771 | Onvoy ONVOY, LLC - CA | – | yes | yes |
| 530-792 | AT&T PACIFIC BELL | – | yes | yes |
| 530-808 | TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 2022-06-29 | yes | yes |
| 530-902 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | yes | yes |
| 530-916 | Onvoy ONVOY, LLC - CA | 2026-05-06 | yes | yes |
| 530-979 | T-Mobile T-MOBILE USA, INC. | 2001-06-26 | 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 | 11 | 33.3% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 5 | 15.2% |
| T-MOBILE USA, INC. | T-Mobile | 3 | 9.1% |
| ONVOY, LLC - CA | Onvoy | 3 | 9.1% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 3 | 9.1% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | TPx | 2 | 6.1% |
| IP HORIZON LLC | – | 1 | 3% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 1 | 3% |
| COMMIO, LLC | – | 1 | 3% |
| BANDWIDTH.COM CLEC, LLC - CA | Bandwidth | 1 | 3% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 1 | 3% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 1 | 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 DAVIS in area code 530?
33 blocks: 204, 219, 220, 231, 297, 298, 302, 304, 341, 376, 400, 554 and 21 more, all listed in the table above.
Which carriers have numbers in DAVIS?
PACIFIC BELL (11 blocks), NEW CINGULAR WIRELESS PCS, LLC (5 blocks), T-MOBILE USA, INC. (3 blocks), ONVOY, LLC - CA (3 blocks), LEVEL 3 COMMUNICATIONS, LLC - CA (3 blocks), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is DAVIS 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.