NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

BENSON prefixes in area code 520

NANPA records 12 assigned NXX blocks to rate center BENSON in area code 520, 1.7% 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 (2), T-MOBILE USA, INC. (2), QWEST CORPORATION (2). The earliest assignment on record here is 2002-08-09 and the most recent 2022-02-18. 11 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 309, 320, 802, 919 – overlay codes cover the same geography, so a rate center is served by all of them.

12 assigned blocks – 1.7% of 520
9 holders of record
11 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
520-221 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 2003-04-08 yes yes
520-265 T-Mobile T-MOBILE USA, INC. 2002-08-09 yes yes
520-386 AT&T NEW CINGULAR WIRELESS PCS, LLC 2019-12-11 yes yes
520-402 T-Mobile T-MOBILE USA, INC. 2016-09-14 yes yes
520-442 Bandwidth BANDWIDTH.COM CLEC, LLC - AZ 2012-09-24 yes yes
520-527 Onvoy ONVOY, LLC - AZ 2020-12-22 yes yes
520-563 IP HORIZON LLC 2021-09-03 yes yes
520-586 Lumen QWEST CORPORATION – no yes
520-595 Lumen CENTURYLINK COMMUNICATIONS, LLC 2015-06-05 yes yes
520-641 TON80 COMMUNICATIONS, LLC 2022-02-18 yes yes
520-686 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 2004-06-08 yes yes
520-720 Lumen QWEST CORPORATION – 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

HolderBrandBlocksShare here
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ Verizon 2 16.7%
T-MOBILE USA, INC. T-Mobile 2 16.7%
QWEST CORPORATION Lumen 2 16.7%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 8.3%
BANDWIDTH.COM CLEC, LLC - AZ Bandwidth 1 8.3%
ONVOY, LLC - AZ Onvoy 1 8.3%
IP HORIZON LLC – 1 8.3%
CENTURYLINK COMMUNICATIONS, LLC Lumen 1 8.3%
TON80 COMMUNICATIONS, LLC – 1 8.3%

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 BENSON in area code 520?

12 blocks: 221, 265, 386, 402, 442, 527, 563, 586, 595, 641, 686, 720. The table above gives the holder of each.

Which carriers have numbers in BENSON?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ (2 blocks), T-MOBILE USA, INC. (2 blocks), QWEST CORPORATION (2 blocks), NEW CINGULAR WIRELESS PCS, LLC (1 block), BANDWIDTH.COM CLEC, LLC - AZ (1 block), ONVOY, LLC - AZ (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is BENSON 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.

Other rate centers in 520

All 699 prefixes in 520