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
2019-11-19 575-241-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 HOBBS NM
2019-11-06 575-747-3XXX 3000–3999Assigned METROPCS, INC. 5562 SOCORRO NM
2019-11-06 575-988-6XXX 6000–6999Assigned METROPCS, INC. 5562 CARLSBAD NM
2019-10-24 575-651-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NM 5470 RUIDOSODWN NM
2019-10-10 575-339-6XXX 6000–6999Assigned ONVOY, LLC - NM 206F LAS CRUCES NM
2019-10-10 575-500-3XXX 3000–3999Assigned ONVOY, LLC - NM 206F ROSWELL NM
2019-10-10 575-500-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F ROSWELL NM
2019-10-10 575-500-6XXX 6000–6999Assigned ONVOY, LLC - NM 206F ROSWELL NM
2019-10-10 575-500-7XXX 7000–7999Assigned ONVOY, LLC - NM 206F ROSWELL NM
2019-10-10 575-639-7XXX 7000–7999Assigned ONVOY, LLC - NM 206F LAS CRUCES NM
2019-10-10 575-800-1XXX 1000–1999Assigned ONVOY, LLC - NM 206F LAS CRUCES NM
2019-10-10 575-800-6XXX 6000–6999Assigned ONVOY, LLC - NM 206F LAS CRUCES NM
2019-10-10 575-888-2XXX 2000–2999Assigned ONVOY, LLC - NM 206F LAS CRUCES NM
2019-10-02 575-205-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F TUCUMCARI NM
2019-10-02 575-209-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F CHAMA NM
2019-10-02 575-221-6XXX 6000–6999Assigned ONVOY, LLC - NM 206F EUNICE NM
2019-10-02 575-223-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F TRUTHCQNCS NM
2019-10-02 575-228-7XXX 7000–7999Assigned ONVOY, LLC - NM 206F ALTO NM
2019-10-02 575-232-3XXX 3000–3999Assigned ONVOY, LLC - NM 206F CHAPARRAL NM
2019-10-02 575-242-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F SILVERCITY NM
2019-10-02 575-252-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F ANGEL FIRE NM
2019-10-02 575-255-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F SAN YSIDRO NM
2019-10-02 575-256-2XXX 2000–2999Assigned ONVOY, LLC - NM 206F TIERRAAMRL NM
2019-10-02 575-400-2XXX 2000–2999Assigned ONVOY, LLC - NM 206F LINDRITH NM
2019-10-02 575-489-0XXX 0000–0999Assigned ONVOY, LLC - NM 206F ALAMOGORDO NM
2019-10-02 575-570-8XXX 8000–8999Assigned ONVOY, LLC - NM 206F CANJILON NM
2019-10-02 575-573-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F CRLSBACRNS NM
2019-10-02 575-577-7XXX 7000–7999Assigned ONVOY, LLC - NM 206F EL RITO NM
2019-10-02 575-600-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F LYBROOK NM
2019-10-02 575-651-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F RUIDOSODWN NM
2019-10-02 575-659-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F LOVINGTON NM
2019-10-02 575-900-2XXX 2000–2999Assigned ONVOY, LLC - NM 206F VALLECITOS NM
2019-10-02 575-988-9XXX 9000–9999Assigned ONVOY, LLC - NM 206F CARLSBAD NM
2019-09-06 575-776-6XXX 6000–6999Assigned METROPCS, INC. 5562 TAOS NM
2019-09-04 575-530-1XXX 1000–1999Assigned TELNYX LLC 073H CLOVIS NM
2019-09-04 575-733-8XXX 8000–8999Assigned TELNYX LLC 073H RATON NM
2019-08-29 575-320-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H PORTALES NM
2019-08-29 575-338-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H LA MESA NM
2019-08-07 575-215-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANTHONY NM
2019-08-01 575-988-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 CARLSBAD NM
2019-06-26 575-800-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 LAS CRUCES NM
2019-06-24 575-206-0XXX 0000–0999Assigned CSC WIRELESS, LLC 425J TEXICO NM
2019-05-22 575-329-5XXX 5000–5999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H CANNON AFB NM
2019-05-22 575-363-4XXX 4000–4999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H ROSWELL NM
2019-05-22 575-800-2XXX 2000–2999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H LAS CRUCES NM
2019-05-22 575-800-3XXX 3000–3999Assigned ONVOY, LLC - NM 206F LAS CRUCES NM
2019-05-21 575-592-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C DEMING NM
2019-05-21 575-659-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C LOVINGTON NM
2019-05-14 575-223-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F TRUTHCQNCS NM
2019-05-13 575-231-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C ARTESIA 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.