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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2026-09-14 575-243-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARTESIA NM
2026-09-09 575-248-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 HATCH NM
2026-09-09 575-307-2XXX 2000–2999Assigned ONVOY, LLC - NM 206F CARLSBAD NM
2026-08-21 575-306-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ROSWELL NM
2026-08-21 575-306-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ROSWELL NM
2026-08-21 575-306-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ROSWELL NM
2026-08-21 575-306-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ROSWELL NM
2026-08-21 575-326-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ANTHONY NM
2026-08-20 575-340-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOBBS NM
2026-08-18 575-616-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J ARTESIA NM
2026-08-14 575-515-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F LAS CRUCES NM
2026-07-23 575-565-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 SNA TERESA NM
2026-07-22 575-663-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SAN YSIDRO NM
2026-07-22 575-781-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANTA ROSA NM
2026-07-22 575-781-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANTA ROSA NM
2026-07-22 575-781-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SANTA ROSA NM
2026-07-08 575-224-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J TAOS NM
2026-06-17 575-728-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 HATCH NM
2026-06-15 575-331-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F LAS CRUCES NM
2026-06-11 575-353-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J LAS CRUCES NM
2026-06-05 575-340-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 HOBBS NM
2026-06-02 575-438-3XXX 3000–3999Assigned HD CARRIER LLC 321J LAS CRUCES NM
2026-06-02 575-438-7XXX 7000–7999Assigned HD CARRIER LLC 321J LAS CRUCES NM
2026-06-02 575-438-8XXX 8000–8999Assigned HD CARRIER LLC 321J LAS CRUCES NM
2026-05-28 575-688-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F CRLSBACRNS NM
2026-05-07 575-204-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F CLOVIS NM
2026-05-07 575-230-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F ROSWELL NM
2026-04-29 575-438-4XXX 4000–4999Assigned EXIANT COMMUNICATIONS LLC 114J LAS CRUCES NM
2026-04-24 575-494-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J DEMING NM
2026-04-23 575-350-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NM 5470 ROY NM
2026-04-09 575-209-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NM 5470 CHAMA NM
2026-04-06 575-353-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F LAS CRUCES NM
2026-03-31 575-227-4XXX 4000–4999Assigned AHOI LLC 883K ALAMOGORDO NM
2026-03-31 575-239-6XXX 6000–6999Assigned AHOI LLC 883K SILVERCITY NM
2026-02-24 575-686-4XXX 4000–4999Assigned TULAROSA COMMUNICATIONS, INC. - NM 470G CAPITAN NM
2026-02-20 575-235-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J CHAMA NM
2026-02-20 575-455-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J MORA NM
2026-02-20 575-808-5XXX 5000–5999Assigned TERRA NOVA TELECOM INC. 145J RUIDOSO NM
2026-02-04 575-704-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LOVINGTON NM
2026-01-12 575-230-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J ROSWELL NM
2026-01-09 575-438-2XXX 2000–2999Assigned AHOI LLC 883K LAS CRUCES NM
2025-12-30 575-321-4XXX 4000–4999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CLOVIS NM
2025-12-04 575-348-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ALAMOGORDO NM
2025-11-26 575-321-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLOVIS NM
2025-11-14 575-349-3XXX 3000–3999Assigned TDS METROCOM, LLC 520K SOCORRO NM
2025-11-10 575-326-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ANTHONY NM
2025-11-06 575-306-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F ROSWELL NM
2025-11-06 575-331-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - NM 123F LAS CRUCES NM
2025-11-05 575-340-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOBBS NM
2025-11-03 575-741-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J TAOS 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.