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

SAN MANUEL prefixes in area code 520

NANPA records 9 assigned NXX blocks to rate center SAN MANUEL in area code 520, 1.3% 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. 6 holders hold those blocks, the largest being QWEST CORPORATION (3), IP HORIZON LLC (2), ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM (1). The earliest assignment on record here is 2002-10-24 and the most recent 2026-10-30. 9 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

9 assigned blocks – 1.3% of 520
6 holders of record
9 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
520-201 Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 2002-10-24 yes yes
520-385 Lumen QWEST CORPORATION – yes yes
520-487 Lumen QWEST CORPORATION – yes yes
520-521 HD CARRIER LLC 2020-10-26 yes yes
520-569 IP HORIZON LLC 2021-09-03 yes yes
520-608 Onvoy ONVOY, LLC - AZ 2022-01-25 yes yes
520-636 Peerless PEERLESS NETWORK OF ARIZONA, LLC - AZ 2015-09-30 yes yes
520-774 IP HORIZON LLC 2026-10-30 yes no
520-896 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
QWEST CORPORATION Lumen 3 33.3%
IP HORIZON LLC – 2 22.2%
ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM Allstream 1 11.1%
HD CARRIER LLC – 1 11.1%
ONVOY, LLC - AZ Onvoy 1 11.1%
PEERLESS NETWORK OF ARIZONA, LLC - AZ Peerless 1 11.1%

Frequently asked

Which prefixes belong to SAN MANUEL in area code 520?

9 blocks: 201, 385, 487, 521, 569, 608, 636, 774, 896. The table above gives the holder of each.

Which carriers have numbers in SAN MANUEL?

QWEST CORPORATION (3 blocks), IP HORIZON LLC (2 blocks), ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM (1 block), HD CARRIER LLC (1 block), ONVOY, LLC - AZ (1 block), PEERLESS NETWORK OF ARIZONA, 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 SAN MANUEL 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