NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

8 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 575
T-MOBILE USA, INC. 6
ONVOY, LLC - NM 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 1
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2017-08-15 575-414-1XXX 1000–1999Assigned ONVOY, LLC - NM 206F LOVING NM
2017-08-15 575-419-1XXX 1000–1999Assigned ONVOY, LLC - NM 206F DULCE NM
2017-08-15 575-651-2XXX 2000–2999Assigned ONVOY, LLC - NM 206F RUIDOSODWN NM
2017-08-15 575-659-1XXX 1000–1999Assigned ONVOY, LLC - NM 206F LOVINGTON NM
2017-08-15 575-686-3XXX 3000–3999Assigned ONVOY, LLC - NM 206F CAPITAN NM
2017-08-15 575-689-2XXX 2000–2999Assigned ONVOY, LLC - NM 206F CARLSBAD NM
2017-08-07 575-651-9XXX 9000–9999Assigned TULAROSA COMMUNICATIONS, INC. - NM 470G RUIDOSODWN NM
2017-08-02 575-552-0XXX 0000–0999Assigned ONVOY, LLC - NM 206F HOBBS NM
2017-08-02 575-552-7XXX 7000–7999Assigned ONVOY, LLC - NM 206F HOBBS NM
2017-08-02 575-552-8XXX 8000–8999Assigned ONVOY, LLC - NM 206F HOBBS NM
2017-08-02 575-552-9XXX 9000–9999Assigned ONVOY, LLC - NM 206F HOBBS NM
2017-07-24 575-530-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F CLOVIS NM
2017-07-17 575-339-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LAS CRUCES NM
2017-06-28 575-999-1XXX 1000–1999Assigned METROPCS, INC. 5562 TAOS NM
2017-06-09 575-518-5XXX 5000–5999Assigned METROPCS, INC. 5562 SOCORRO NM
2017-06-07 575-454-5XXX 5000–5999Assigned TULAROSA COMMUNICATIONS, INC. - NM 470G RUIDOSO NM
2017-06-02 575-205-9XXX 9000–9999Assigned TELNYX LLC 073H TUCUMCARI NM
2017-06-02 575-215-9XXX 9000–9999Assigned TELNYX LLC 073H ANTHONY NM
2017-06-02 575-231-0XXX 0000–0999Assigned TELNYX LLC 073H ARTESIA NM
2017-06-02 575-468-5XXX 5000–5999Assigned TELNYX LLC 073H PORTALES NM
2017-06-02 575-502-9XXX 9000–9999Assigned TELNYX LLC 073H SNA TERESA NM
2017-05-30 575-221-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EUNICE NM
2017-05-22 575-222-2XXX 2000–2999Assigned ONVOY, LLC - NM 206F LAS CRUCES NM
2017-05-22 575-404-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F ALAMOGORDO NM
2017-05-16 575-419-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 DULCE NM
2017-04-10 575-659-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LOVINGTON NM
2017-04-05 575-242-0XXX 0000–0999Assigned TELNYX LLC 073H SILVERCITY NM
2017-04-05 575-592-0XXX 0000–0999Assigned TELNYX LLC 073H DEMING NM
2017-03-29 575-214-5XXX 5000–5999Assigned TELNYX LLC 073H ALAMOGORDO NM
2017-03-29 575-222-9XXX 9000–9999Assigned TELNYX LLC 073H LAS CRUCES NM
2017-03-29 575-363-2XXX 2000–2999Assigned TELNYX LLC 073H ROSWELL NM
2017-03-29 575-517-8XXX 8000–8999Assigned TELNYX LLC 073H SOCORRO NM
2017-03-13 575-602-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 HOBBS NM
2017-03-09 575-999-0XXX 0000–0999Assigned TELNYX LLC 073H TAOS NM
2017-03-09 575-999-9XXX 9000–9999Assigned TELNYX LLC 073H TAOS NM
2017-03-07 575-223-3XXX 3000–3999Assigned METROPCS, INC. 5562 TRUTHCQNCS NM
2017-03-07 575-651-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C RUIDOSODWN NM
2017-03-01 575-742-6XXX 6000–6999Assigned METROPCS, INC. 5562 CLOVIS NM
2017-02-28 575-408-4XXX 4000–4999Assigned METROPCS, INC. 5562 HOBBS NM
2017-02-28 575-964-0XXX 0000–0999Assigned METROPCS, INC. 5562 HOBBS NM
2017-01-31 575-215-7XXX 7000–7999Assigned METROPCS, INC. 5562 ANTHONY NM
2017-01-31 575-493-4XXX 4000–4999Assigned METROPCS, INC. 5562 LORDSBURG NM
2017-01-31 575-618-5XXX 5000–5999Assigned METROPCS, INC. 5562 ANTHONY NM
2017-01-31 575-802-7XXX 7000–7999Assigned METROPCS, INC. 5562 RUIDOSO NM
2017-01-04 575-363-3XXX 3000–3999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H ROSWELL NM
2016-12-30 575-223-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TRUTHCQNCS NM
2016-12-30 575-363-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ROSWELL NM
2016-11-30 575-363-8XXX 8000–8999Assigned METROPCS, INC. 5562 ROSWELL NM
2016-11-18 575-366-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLOVIS NM
2016-11-10 575-205-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NM 7464 TUCUMCARI NM

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.