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
2019-04-22 575-305-0XXX 0000–0999Assigned ONVOY, LLC - NM 206F SNA TERESA NM
2019-04-11 575-241-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 HOBBS NM
2019-03-29 575-800-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J LAS CRUCES NM
2019-03-28 575-206-2XXX 2000–2999Assigned CSC WIRELESS, LLC 425J TEXICO NM
2019-02-27 575-988-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NM 5470 CARLSBAD NM
2019-02-07 575-988-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 CARLSBAD NM
2019-02-07 575-988-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 CARLSBAD NM
2019-01-10 575-888-1XXX 1000–1999Assigned METROPCS, INC. 5562 LAS CRUCES NM
2018-11-30 575-619-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SNA TERESA NM
2018-11-08 575-573-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F CRLSBACRNS NM
2018-11-05 575-552-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 HOBBS NM
2018-10-31 575-305-2XXX 2000–2999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H SNA TERESA NM
2018-10-30 575-988-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 CARLSBAD NM
2018-10-24 575-339-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 LAS CRUCES NM
2018-10-19 575-659-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LOVINGTON NM
2018-10-02 575-231-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H ARTESIA NM
2018-09-10 575-300-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F LA MESA NM
2018-09-07 575-800-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J LAS CRUCES NM
2018-09-04 575-205-2XXX 2000–2999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H TUCUMCARI NM
2018-08-24 575-221-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F EUNICE NM
2018-08-24 575-221-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F EUNICE NM
2018-08-24 575-235-5XXX 5000–5999Assigned ONVOY, LLC - NM 206F CHAMA NM
2018-08-24 575-235-6XXX 6000–6999Assigned ONVOY, LLC - NM 206F CHAMA NM
2018-08-22 575-232-8XXX 8000–8999Assigned TELNYX LLC 073H CHAPARRAL NM
2018-08-22 575-252-1XXX 1000–1999Assigned TELNYX LLC 073H ANGEL FIRE NM
2018-08-22 575-300-8XXX 8000–8999Assigned TELNYX LLC 073H LA MESA NM
2018-08-22 575-329-1XXX 1000–1999Assigned TELNYX LLC 073H CANNON AFB NM
2018-08-22 575-440-9XXX 9000–9999Assigned TELNYX LLC 073H RED RIVER NM
2018-08-22 575-459-8XXX 8000–8999Assigned TELNYX LLC 073H SPRINGER NM
2018-08-22 575-655-1XXX 1000–1999Assigned TELNYX LLC 073H PENASCO NM
2018-08-22 575-717-8XXX 8000–8999Assigned TELNYX LLC 073H QUESTA NM
2018-08-22 575-727-8XXX 8000–8999Assigned TELNYX LLC 073H BAYARD NM
2018-08-22 575-728-0XXX 0000–0999Assigned TELNYX LLC 073H HATCH NM
2018-08-22 575-735-9XXX 9000–9999Assigned TELNYX LLC 073H CIMARRON NM
2018-08-14 575-205-6XXX 6000–6999Assigned ONVOY, LLC - NM 206F TUCUMCARI NM
2018-08-14 575-205-7XXX 7000–7999Assigned ONVOY, LLC - NM 206F TUCUMCARI NM
2018-07-27 575-552-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA NM-LLC 450C HOBBS NM
2018-07-18 575-999-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 TAOS NM
2018-06-25 575-552-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 HOBBS NM
2018-06-25 575-552-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 HOBBS NM
2018-05-24 575-315-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NM 5470 RUIDOSO NM
2018-05-24 575-952-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NM 5470 TRUTHCQNCS NM
2018-05-14 575-400-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NM 5470 LINDRITH NM
2018-05-14 575-573-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NM 5470 CRLSBACRNS NM
2018-05-14 575-579-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NM 5470 HILLSBORO NM
2018-05-14 575-600-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NM 5470 LYBROOK NM
2018-05-11 575-205-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H TUCUMCARI NM
2018-05-11 575-500-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ROSWELL NM
2018-05-10 575-242-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F SILVERCITY NM
2018-05-10 575-400-4XXX 4000–4999Assigned ONVOY, LLC - NM 206F LINDRITH 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.