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
2020-09-18 575-530-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F CLOVIS NM
2020-09-18 575-530-6XXX 6000–6999Assigned ONVOY, LLC - NM 206F CLOVIS NM
2020-09-18 575-570-3XXX 3000–3999Assigned ONVOY, LLC - NM 206F CANJILON NM
2020-09-18 575-570-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F CANJILON NM
2020-09-18 575-573-6XXX 6000–6999Assigned ONVOY, LLC - NM 206F CRLSBACRNS NM
2020-09-18 575-573-8XXX 8000–8999Assigned ONVOY, LLC - NM 206F CRLSBACRNS NM
2020-09-11 575-346-2XXX 2000–2999Assigned FRACTEL, LLC 965H CORONA NM
2020-09-04 575-786-7XXX 7000–7999Assigned FRACTEL, LLC 965H RODEO NM
2020-09-04 575-842-5XXX 5000–5999Assigned FRACTEL, LLC 965H MAGDALENA NM
2020-09-04 575-945-3XXX 3000–3999Assigned FRACTEL, LLC 965H LOGAN NM
2020-08-18 575-999-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F TAOS NM
2020-08-04 575-254-3XXX 3000–3999Assigned ONVOY, LLC - NM 206F JEMEZ SPG NM
2020-08-04 575-254-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F JEMEZ SPG NM
2020-08-04 575-255-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F SAN YSIDRO NM
2020-08-04 575-255-6XXX 6000–6999Assigned ONVOY, LLC - NM 206F SAN YSIDRO NM
2020-08-04 575-952-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F TRUTHCQNCS NM
2020-08-04 575-952-7XXX 7000–7999Assigned ONVOY, LLC - NM 206F TRUTHCQNCS NM
2020-08-03 575-235-2XXX 2000–2999Assigned ONVOY, LLC - NM 206F CHAMA NM
2020-08-03 575-235-3XXX 3000–3999Assigned ONVOY, LLC - NM 206F CHAMA NM
2020-08-03 575-237-6XXX 6000–6999Assigned ONVOY, LLC - NM 206F CARLSBAD NM
2020-08-03 575-237-7XXX 7000–7999Assigned ONVOY, LLC - NM 206F CARLSBAD NM
2020-08-03 575-250-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F GALLINA NM
2020-08-03 575-250-6XXX 6000–6999Assigned ONVOY, LLC - NM 206F GALLINA NM
2020-08-03 575-251-1XXX 1000–1999Assigned ONVOY, LLC - NM 206F JAL NM
2020-08-03 575-251-2XXX 2000–2999Assigned ONVOY, LLC - NM 206F JAL NM
2020-08-03 575-729-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F ALTO NM
2020-08-03 575-729-7XXX 7000–7999Assigned ONVOY, LLC - NM 206F ALTO NM
2020-08-03 575-766-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F EUNICE NM
2020-08-03 575-766-7XXX 7000–7999Assigned ONVOY, LLC - NM 206F EUNICE NM
2020-07-29 575-216-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NM 5470 ANGEL FIRE NM
2020-07-20 575-243-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ARTESIA NM
2020-07-20 575-243-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ARTESIA NM
2020-07-20 575-243-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ARTESIA NM
2020-07-20 575-243-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ARTESIA NM
2020-07-20 575-243-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ARTESIA NM
2020-07-09 575-259-9XXX 9000–9999Assigned METROPCS, INC. 5562 LAS CRUCES NM
2020-07-09 575-425-8XXX 8000–8999Assigned METROPCS, INC. 5562 TAOS NM
2020-07-09 575-592-9XXX 9000–9999Assigned METROPCS, INC. 5562 DEMING NM
2020-06-26 575-727-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H BAYARD NM
2020-06-26 575-727-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H BAYARD NM
2020-06-26 575-727-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H BAYARD NM
2020-06-25 575-231-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ARTESIA NM
2020-06-24 575-228-9XXX 9000–9999Assigned TULAROSA COMMUNICATIONS, INC. - NM 470G ALTO NM
2020-06-16 575-213-0XXX 0000–0999Assigned METROPCS, INC. 5562 ALAMOGORDO NM
2020-06-15 575-728-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 HATCH NM
2020-06-03 575-333-3XXX 3000–3999Assigned FRACTEL, LLC 965H LOVINGTON NM
2020-06-03 575-766-3XXX 3000–3999Assigned FRACTEL, LLC 965H EUNICE NM
2020-06-03 575-766-6XXX 6000–6999Assigned FRACTEL, LLC 965H EUNICE NM
2020-06-02 575-231-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ARTESIA NM
2020-06-02 575-231-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 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.