WILLCOX prefixes in area code 520
NANPA records 18 assigned NXX blocks to rate center WILLCOX in area code 520, 2.6% of the 699 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 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ (8), LEVEL 3 COMMUNICATIONS, LLC - AZ (2), ONVOY, LLC - AZ (2). The earliest assignment on record here is 2003-04-08 and the most recent 2025-06-06. 15 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 |
|---|---|---|---|---|
| 520-242 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2021-10-28 | yes | yes |
| 520-253 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2003-04-08 | yes | yes |
| 520-254 | Lumen LEVEL 3 COMMUNICATIONS, LLC - AZ | 2004-04-02 | yes | yes |
| 520-337 | Lumen LEVEL 3 COMMUNICATIONS, LLC - AZ | 2008-05-05 | yes | yes |
| 520-348 | Lumen CENTURYLINK COMMUNICATIONS, LLC | 2015-06-22 | yes | yes |
| 520-384 | Lumen QWEST CORPORATION | – | no | yes |
| 520-435 | T-Mobile T-MOBILE USA, INC. | 2023-05-31 | yes | yes |
| 520-503 | Onvoy ONVOY, LLC - AZ | 2020-12-22 | yes | yes |
| 520-507 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | – | no | yes |
| 520-541 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2021-07-07 | yes | yes |
| 520-630 | Onvoy ONVOY, LLC - AZ | 2021-12-02 | yes | yes |
| 520-643 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2022-03-28 | yes | yes |
| 520-656 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2022-10-27 | yes | yes |
| 520-676 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2025-06-06 | yes | yes |
| 520-698 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2023-10-18 | yes | yes |
| 520-766 | VALLEY CONNECTIONS, L.L.C. - AZ | 2005-12-21 | no | yes |
| 520-779 | Bandwidth BANDWIDTH.COM CLEC, LLC - AZ | 2018-09-10 | yes | yes |
| 520-929 | TON80 COMMUNICATIONS, LLC | 2022-02-18 | 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 |
|---|---|---|---|
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | Verizon | 8 | 44.4% |
| LEVEL 3 COMMUNICATIONS, LLC - AZ | Lumen | 2 | 11.1% |
| ONVOY, LLC - AZ | Onvoy | 2 | 11.1% |
| CENTURYLINK COMMUNICATIONS, LLC | Lumen | 1 | 5.6% |
| QWEST CORPORATION | Lumen | 1 | 5.6% |
| T-MOBILE USA, INC. | T-Mobile | 1 | 5.6% |
| VALLEY CONNECTIONS, L.L.C. - AZ | – | 1 | 5.6% |
| BANDWIDTH.COM CLEC, LLC - AZ | Bandwidth | 1 | 5.6% |
| TON80 COMMUNICATIONS, LLC | – | 1 | 5.6% |
Frequently asked
Which prefixes belong to WILLCOX in area code 520?
18 blocks: 242, 253, 254, 337, 348, 384, 435, 503, 507, 541, 630, 643 and 6 more, all listed in the table above.
Which carriers have numbers in WILLCOX?
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ (8 blocks), LEVEL 3 COMMUNICATIONS, LLC - AZ (2 blocks), ONVOY, LLC - AZ (2 blocks), CENTURYLINK COMMUNICATIONS, LLC (1 block), QWEST CORPORATION (1 block), T-MOBILE USA, INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is WILLCOX 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.