NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

8 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2005-11-30 575-442-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ALAMOGORDO NM
2005-11-30 575-517-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SOCORRO NM
2005-11-03 575-347-6XXX 6000–6999Assigned QWEST CORPORATION 9636 ROSWELL NM
2005-10-06 575-805-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAS CRUCES NM
2005-10-06 575-805-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAS CRUCES NM
2005-10-06 575-805-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAS CRUCES NM
2005-10-04 575-318-5XXX 5000–5999Assigned METROPCS, INC. 5562 HOBBS NM
2005-09-30 575-956-8XXX 8000–8999Assigned METROPCS, INC. 5562 SILVERCITY NM
2005-09-15 575-636-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 LAS CRUCES NM
2005-08-26 575-545-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DEMING NM
2005-08-22 575-815-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TUCUMCARI NM
2005-08-19 575-202-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 LAS CRUCES NM
2005-08-04 575-405-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAS CRUCES NM
2005-08-04 575-405-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAS CRUCES NM
2005-08-04 575-405-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAS CRUCES NM
2005-07-11 575-545-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 DEMING NM
2005-07-11 575-921-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALAMOGORDO NM
2005-06-01 575-613-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 TAOS NM
2005-06-01 575-973-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 RUIDOSO NM
2005-05-19 575-219-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NM 5470 CLOVIS NM
2005-05-19 575-418-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NM 5470 SOCORRO NM
2005-05-19 575-636-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 LAS CRUCES NM
2005-05-02 575-302-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CARLSBAD NM
2005-05-02 575-637-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ROSWELL NM
2005-04-13 575-202-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 LAS CRUCES NM
2005-04-13 575-418-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 SOCORRO NM
2005-04-05 575-791-5XXX 5000–5999Assigned METROPCS, INC. 5562 CLOVIS NM
2005-04-05 575-791-7XXX 7000–7999Assigned METROPCS, INC. 5562 CLOVIS NM
2005-03-31 575-446-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NM 5470 ALAMOGORDO NM
2005-03-31 575-479-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NM 5470 ALAMOGORDO NM
2005-03-23 575-637-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ROSWELL NM
2005-03-21 575-545-8XXX 8000–8999Assigned METROPCS, INC. 5562 DEMING NM
2005-03-11 575-202-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 LAS CRUCES NM
2005-03-11 575-202-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 LAS CRUCES NM
2005-03-11 575-779-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 TAOS NM
2005-02-21 575-318-7XXX 7000–7999Assigned METROPCS, INC. 5562 HOBBS NM
2005-02-21 575-680-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LAS CRUCES NM
2005-02-21 575-680-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LAS CRUCES NM
2005-02-08 575-418-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SOCORRO NM
2005-02-03 575-680-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 LAS CRUCES NM
2005-01-31 575-545-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NM 5470 DEMING NM
2005-01-31 575-937-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 RUIDOSO NM
2005-01-18 575-637-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ROSWELL NM
2005-01-18 575-637-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ROSWELL NM
2005-01-03 575-791-8XXX 8000–8999Assigned METROPCS, INC. 5562 CLOVIS NM
2004-12-16 575-636-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NM 5470 LAS CRUCES NM
2004-12-10 575-791-9XXX 9000–9999Assigned METROPCS, INC. 5562 CLOVIS NM
2004-11-23 575-202-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 LAS CRUCES NM
2004-11-17 575-602-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 HOBBS NM
2004-11-16 575-302-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CARLSBAD NM

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.