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
2020-06-02 575-231-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ARTESIA NM
2020-05-28 575-592-1XXX 1000–1999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H DEMING NM
2020-05-28 575-999-4XXX 4000–4999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H TAOS NM
2020-05-20 575-259-8XXX 8000–8999Assigned METROPCS, INC. 5562 LAS CRUCES NM
2020-05-13 575-241-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 HOBBS NM
2020-04-29 575-232-2XXX 2000–2999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H CHAPARRAL NM
2020-04-17 575-500-1XXX 1000–1999Assigned METROPCS, INC. 5562 ROSWELL NM
2020-04-08 575-210-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C TUCUMCARI NM
2020-04-01 575-210-1XXX 1000–1999Assigned ONVOY, LLC - NM 206F TUCUMCARI NM
2020-04-01 575-210-2XXX 2000–2999Assigned ONVOY, LLC - NM 206F TUCUMCARI NM
2020-04-01 575-213-1XXX 1000–1999Assigned ONVOY, LLC - NM 206F ALAMOGORDO NM
2020-04-01 575-213-2XXX 2000–2999Assigned ONVOY, LLC - NM 206F ALAMOGORDO NM
2020-03-30 575-297-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C TRUTHCQNCS NM
2020-03-17 575-338-0XXX 0000–0999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H LA MESA NM
2020-03-17 575-999-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H TAOS NM
2020-02-20 575-440-3XXX 3000–3999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H RED RIVER NM
2020-02-06 575-215-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F ANTHONY NM
2020-02-06 575-400-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F LINDRITH NM
2020-02-06 575-414-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F LOVING NM
2020-02-06 575-419-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F DULCE NM
2020-02-06 575-659-2XXX 2000–2999Assigned ONVOY, LLC - NM 206F LOVINGTON NM
2020-02-06 575-940-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F CAPITAN NM
2020-01-10 575-241-5XXX 5000–5999Assigned METROPCS, INC. 5562 HOBBS NM
2020-01-10 575-530-7XXX 7000–7999Assigned METROPCS, INC. 5562 CLOVIS NM
2019-12-17 575-213-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F ALAMOGORDO NM
2019-12-17 575-216-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F ANGEL FIRE NM
2019-12-17 575-237-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F CARLSBAD NM
2019-12-16 575-210-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F TUCUMCARI NM
2019-12-12 575-223-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F TRUTHCQNCS NM
2019-12-12 575-255-2XXX 2000–2999Assigned ONVOY, LLC - NM 206F SAN YSIDRO NM
2019-12-12 575-570-7XXX 7000–7999Assigned ONVOY, LLC - NM 206F CANJILON NM
2019-12-12 575-573-2XXX 2000–2999Assigned ONVOY, LLC - NM 206F CRLSBACRNS NM
2019-12-12 575-577-6XXX 6000–6999Assigned ONVOY, LLC - NM 206F EL RITO NM
2019-12-12 575-579-6XXX 6000–6999Assigned ONVOY, LLC - NM 206F HILLSBORO NM
2019-12-12 575-600-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F LYBROOK NM
2019-12-12 575-900-7XXX 7000–7999Assigned ONVOY, LLC - NM 206F VALLECITOS NM
2019-12-11 575-209-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F CHAMA NM
2019-12-11 575-221-8XXX 8000–8999Assigned ONVOY, LLC - NM 206F EUNICE NM
2019-12-11 575-228-2XXX 2000–2999Assigned ONVOY, LLC - NM 206F ALTO NM
2019-12-11 575-232-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F CHAPARRAL NM
2019-12-11 575-242-2XXX 2000–2999Assigned ONVOY, LLC - NM 206F SILVERCITY NM
2019-12-11 575-250-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F GALLINA NM
2019-12-11 575-251-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F JAL NM
2019-12-11 575-254-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F JEMEZ SPG NM
2019-12-11 575-256-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F TIERRAAMRL NM
2019-12-11 575-315-9XXX 9000–9999Assigned ONVOY, LLC - NM 206F RUIDOSO NM
2019-12-11 575-530-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F CLOVIS NM
2019-12-11 575-651-8XXX 8000–8999Assigned ONVOY, LLC - NM 206F RUIDOSODWN NM
2019-12-11 575-659-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LOVINGTON NM
2019-11-29 575-459-4XXX 4000–4999Assigned VONAGE AMERICA LLC 197D SPRINGER 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.