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
2021-09-07 575-240-1XXX 1000–1999Assigned METROPCS, INC. 5562 TAOS NM
2021-09-02 575-320-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NM 5470 PORTALES NM
2021-09-01 575-284-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SILVERCITY NM
2021-08-25 575-465-8XXX 8000–8999Assigned FRACTEL, LLC 965H ROSWELL NM
2021-08-16 575-281-6XXX 6000–6999Assigned COMMIO, LLC 939H LAS CRUCES NM
2021-08-16 575-281-7XXX 7000–7999Assigned COMMIO, LLC 939H LAS CRUCES NM
2021-08-16 575-281-8XXX 8000–8999Assigned COMMIO, LLC 939H LAS CRUCES NM
2021-08-16 575-281-9XXX 9000–9999Assigned COMMIO, LLC 939H LAS CRUCES NM
2021-08-12 575-592-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DEMING NM
2021-08-11 575-281-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 LAS CRUCES NM
2021-08-11 575-281-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 LAS CRUCES NM
2021-08-11 575-281-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 LAS CRUCES NM
2021-08-11 575-281-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 LAS CRUCES NM
2021-08-11 575-281-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 LAS CRUCES NM
2021-08-03 575-277-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LAS CRUCES NM
2021-08-03 575-277-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LAS CRUCES NM
2021-07-27 575-271-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLOVIS NM
2021-07-22 575-727-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F BAYARD NM
2021-07-21 575-249-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 LAS CRUCES NM
2021-07-21 575-837-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALAMOGORDO NM
2021-07-21 575-837-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALAMOGORDO NM
2021-07-21 575-837-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALAMOGORDO NM
2021-07-21 575-837-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALAMOGORDO NM
2021-07-21 575-837-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALAMOGORDO NM
2021-07-19 575-243-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F ARTESIA NM
2021-06-29 575-247-8XXX 8000–8999Assigned TELNYX LLC 073H ARTESIA NM
2021-06-27 575-249-7XXX 7000–7999Assigned TELNYX LLC 073H LAS CRUCES NM
2021-06-24 575-216-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H ANGEL FIRE NM
2021-06-24 575-243-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H ARTESIA NM
2021-06-24 575-262-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H ANTHONY NM
2021-06-24 575-345-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H CANNON AFB NM
2021-06-24 575-570-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H CANJILON NM
2021-06-24 575-729-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ALTO NM
2021-06-24 575-837-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H ALAMOGORDO NM
2021-06-22 575-215-6XXX 6000–6999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H ANTHONY NM
2021-06-22 575-241-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 HOBBS NM
2021-06-22 575-346-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J CORONA NM
2021-06-22 575-717-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H QUESTA NM
2021-06-19 575-735-2XXX 2000–2999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H CIMARRON NM
2021-06-17 575-766-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J EUNICE NM
2021-06-11 575-248-9XXX 9000–9999Assigned TON80 COMMUNICATIONS, LLC 516J HATCH NM
2021-06-11 575-385-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CUBA NM
2021-05-08 575-554-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALAMOGORDO NM
2021-05-08 575-554-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALAMOGORDO NM
2021-05-08 575-554-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALAMOGORDO NM
2021-05-06 575-260-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 RUIDOSODWN NM
2021-05-06 575-262-0XXX 0000–0999Assigned TELNYX LLC 073H ANTHONY NM
2021-04-27 575-266-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CARLSBAD NM
2021-04-24 575-727-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H BAYARD NM
2021-04-24 575-727-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H BAYARD 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.