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
2023-03-30 575-334-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J CHAPARRAL NM
2023-03-30 575-742-4XXX 4000–4999Assigned TERRA NOVA TELECOM INC. 145J CLOVIS NM
2023-03-21 575-332-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J SNA TERESA NM
2023-03-15 575-290-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALAMOGORDO NM
2023-03-15 575-290-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALAMOGORDO NM
2023-03-15 575-290-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALAMOGORDO NM
2023-03-15 575-290-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALAMOGORDO NM
2023-03-15 575-290-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALAMOGORDO NM
2023-03-15 575-290-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALAMOGORDO NM
2023-03-15 575-290-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALAMOGORDO NM
2023-03-13 575-270-8XXX 8000–8999Assigned METROPCS, INC. 5562 LAS CRUCES NM
2023-02-13 575-867-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J ANTHONY NM
2023-01-26 575-247-2XXX 2000–2999Assigned TELNYX LLC 073H ARTESIA NM
2023-01-25 575-345-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NM 5470 CANNON AFB NM
2023-01-25 575-599-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NM 5470 RED RIVER NM
2023-01-25 575-735-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NM 5470 CIMARRON NM
2023-01-19 575-247-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARTESIA NM
2022-12-29 575-290-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALAMOGORDO NM
2022-12-29 575-290-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALAMOGORDO NM
2022-12-29 575-290-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALAMOGORDO NM
2022-12-28 575-832-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TUCUMCARI NM
2022-12-16 575-900-8XXX 8000–8999Assigned ONVOY, LLC - NM 206F VALLECITOS NM
2022-12-12 575-251-9XXX 9000–9999Assigned ONVOY, LLC - NM 206F JAL NM
2022-12-08 575-284-2XXX 2000–2999Assigned ONVOY, LLC - NM 206F SILVERCITY NM
2022-12-05 575-283-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANTHONY NM
2022-12-05 575-286-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALAMOGORDO NM
2022-12-05 575-286-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALAMOGORDO NM
2022-12-05 575-550-7XXX 7000–7999Assigned ONVOY, LLC - NM 206F ROSWELL NM
2022-12-05 575-550-8XXX 8000–8999Assigned ONVOY, LLC - NM 206F ROSWELL NM
2022-11-22 575-283-9XXX 9000–9999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H ANTHONY NM
2022-11-22 575-284-1XXX 1000–1999Assigned TELNYX LLC 073H SILVERCITY NM
2022-11-22 575-832-8XXX 8000–8999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H TUCUMCARI NM
2022-11-21 575-493-5XXX 5000–5999Assigned METROPCS, INC. 5562 LORDSBURG NM
2022-11-15 575-466-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 JEMEZ SPG NM
2022-11-15 575-619-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SNA TERESA NM
2022-11-09 575-286-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALAMOGORDO NM
2022-11-09 575-286-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALAMOGORDO NM
2022-11-09 575-286-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALAMOGORDO NM
2022-11-04 575-665-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 HOBBS NM
2022-11-01 575-277-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 LAS CRUCES NM
2022-10-28 575-262-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ANTHONY NM
2022-10-26 575-266-7XXX 7000–7999Assigned ONVOY, LLC - NM 206F CARLSBAD NM
2022-10-26 575-286-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F ALAMOGORDO NM
2022-10-25 575-266-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F CARLSBAD NM
2022-10-25 575-293-1XXX 1000–1999Assigned PEERLESS NETWORK OF NEW MEXICO, LLC - NM 377H PENASCO NM
2022-10-24 575-286-2XXX 2000–2999Assigned METROPCS, INC. 5562 ALAMOGORDO NM
2022-10-24 575-299-6XXX 6000–6999Assigned COMMIO, LLC 939H DEMING NM
2022-10-20 575-266-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 CARLSBAD NM
2022-10-20 575-266-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 CARLSBAD NM
2022-10-19 575-867-5XXX 5000–5999Assigned COMMIO, LLC 939H ANTHONY 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.