DELANO prefixes in area code 661
NANPA records 23 assigned NXX blocks to rate center DELANO in area code 661, 3.4% of the 674 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. 13 holders hold those blocks, the largest being T-MOBILE USA, INC. (4), PACIFIC BELL (3), NEW CINGULAR WIRELESS PCS, LLC (2). The earliest assignment on record here is 2001-10-10 and the most recent 2023-12-15. 20 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 |
|---|---|---|---|---|
| 661-229 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | yes | yes |
| 661-359 | UTILITY TELECOM GROUP, LLC - CA | – | yes | yes |
| 661-370 | Lumen LEVEL 3 COMMUNICATIONS, LLC - CA | – | yes | yes |
| 661-372 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2014-04-07 | yes | yes |
| 661-375 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | – | yes | yes |
| 661-446 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 2012-08-07 | yes | yes |
| 661-454 | BHN IP ENABLED SERVICES, LLC | – | yes | yes |
| 661-474 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 2010-03-05 | yes | yes |
| 661-534 | Lumen CENTURYLINK COMMUNICATIONS, LLC | 2015-03-04 | yes | yes |
| 661-545 | T-Mobile T-MOBILE USA, INC. | 2020-10-16 | yes | yes |
| 661-553 | Bandwidth BANDWIDTH.COM CLEC, LLC - CA | 2015-04-28 | yes | yes |
| 661-561 | Onvoy ONVOY, LLC - CA | 2020-03-27 | yes | yes |
| 661-586 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 661-642 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 2023-12-15 | yes | yes |
| 661-653 | T-Mobile T-MOBILE USA, INC. | 2022-04-25 | yes | yes |
| 661-690 | T-Mobile T-MOBILE USA, INC. | 2019-04-12 | yes | yes |
| 661-709 | T-Mobile T-MOBILE USA, INC. | 2001-10-10 | yes | yes |
| 661-720 | AT&T PACIFIC BELL | – | yes | yes |
| 661-721 | AT&T PACIFIC BELL | – | no | yes |
| 661-725 | AT&T PACIFIC BELL | – | no | yes |
| 661-732 | FRACTEL, LLC | 2020-07-23 | yes | yes |
| 661-778 | Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | – | yes | yes |
| 661-922 | FRACTEL, LLC | 2021-01-21 | 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 |
|---|---|---|---|
| T-MOBILE USA, INC. | T-Mobile | 4 | 17.4% |
| PACIFIC BELL | AT&T | 3 | 13% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 2 | 8.7% |
| BANDWIDTH.COM CLEC, LLC - CA | Bandwidth | 2 | 8.7% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 2 | 8.7% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 2 | 8.7% |
| FRACTEL, LLC | – | 2 | 8.7% |
| UTILITY TELECOM GROUP, LLC - CA | – | 1 | 4.3% |
| LEVEL 3 COMMUNICATIONS, LLC - CA | Lumen | 1 | 4.3% |
| BHN IP ENABLED SERVICES, LLC | – | 1 | 4.3% |
| CENTURYLINK COMMUNICATIONS, LLC | Lumen | 1 | 4.3% |
| ONVOY, LLC - CA | Onvoy | 1 | 4.3% |
| LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | Lumen | 1 | 4.3% |
Frequently asked
Which prefixes belong to DELANO in area code 661?
23 blocks: 229, 359, 370, 372, 375, 446, 454, 474, 534, 545, 553, 561 and 11 more, all listed in the table above.
Which carriers have numbers in DELANO?
T-MOBILE USA, INC. (4 blocks), PACIFIC BELL (3 blocks), NEW CINGULAR WIRELESS PCS, LLC (2 blocks), BANDWIDTH.COM CLEC, LLC - CA (2 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (2 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - CA (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is DELANO 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.