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

SILVERCITY prefixes in area code 575

NANPA records 15 assigned NXX blocks to rate center SILVERCITY in area code 575, 2.9% of the 521 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. 7 holders hold those blocks, the largest being QWEST CORPORATION (5), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM (3), ONVOY, LLC - NM (2). The earliest assignment on record here is 2001-05-14 and the most recent 2024-09-12. 12 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 code 712 – overlay codes cover the same geography, so a rate center is served by all of them.

15 assigned blocks – 2.9% of 575
7 holders of record
12 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
575-239 Onvoy ONVOY, LLC - NM 2009-07-14 yes yes
575-242 Telnyx TELNYX LLC 2017-04-03 yes yes
575-284 T-Mobile T-MOBILE USA, INC. 2021-09-01 yes yes
575-313 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 2001-05-14 yes yes
575-328 T-Mobile T-MOBILE USA, INC. 2024-09-12 yes yes
575-342 Onvoy ONVOY, LLC - NM 2011-10-06 yes yes
575-388 Lumen QWEST CORPORATION – no yes
575-519 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 2006-05-01 yes yes
575-534 Lumen QWEST CORPORATION – no yes
575-538 Lumen QWEST CORPORATION – yes yes
575-574 Lumen QWEST CORPORATION – yes yes
575-590 AT&T NEW CINGULAR WIRELESS PCS, LLC – yes yes
575-597 INTERACTIVE NETWORKS CORPORATION -NM 2008-06-24 no yes
575-654 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 2007-06-21 yes yes
575-956 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 5 33.3%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM Verizon 3 20%
ONVOY, LLC - NM Onvoy 2 13.3%
T-MOBILE USA, INC. T-Mobile 2 13.3%
TELNYX LLC Telnyx 1 6.7%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 6.7%
INTERACTIVE NETWORKS CORPORATION -NM – 1 6.7%

Frequently asked

Which prefixes belong to SILVERCITY in area code 575?

15 blocks: 239, 242, 284, 313, 328, 342, 388, 519, 534, 538, 574, 590 and 3 more, all listed in the table above.

Which carriers have numbers in SILVERCITY?

QWEST CORPORATION (5 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM (3 blocks), ONVOY, LLC - NM (2 blocks), T-MOBILE USA, INC. (2 blocks), TELNYX LLC (1 block), NEW CINGULAR WIRELESS PCS, LLC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is SILVERCITY 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 575

All 521 prefixes in 575