NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

17 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 424
ONVOY, LLC - CA 15
OPENTACT INC. 1
NEW CINGULAR WIRELESS PCS, LLC 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
2022-05-10 424-855-5XXX 5000–5999Assigned FRACTEL, LLC 965H AVALON CA
2022-05-05 424-528-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H CMTN GRDN CA
2022-05-05 424-544-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 EL SEGUNDO CA
2022-05-03 424-464-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MALIBU CA
2022-05-03 424-464-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MALIBU CA
2022-04-27 424-461-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 LOMITA CA
2022-04-27 424-599-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BEVERLYHLS CA
2022-04-27 424-944-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BEVERLYHLS CA
2022-04-27 424-944-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BEVERLYHLS CA
2022-04-27 424-944-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BEVERLYHLS CA
2022-04-27 424-944-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 BEVERLYHLS CA
2022-04-27 424-944-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BEVERLYHLS CA
2022-04-27 424-944-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BEVERLYHLS CA
2022-04-27 424-944-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BEVERLYHLS CA
2022-04-27 424-944-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BEVERLYHLS CA
2022-04-27 424-944-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BEVERLYHLS CA
2022-04-18 424-404-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H REDONDO CA
2022-04-14 424-460-7XXX 7000–7999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F CULVERCITY CA
2022-04-12 424-467-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 W ANGELES CA
2022-04-12 424-467-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 W ANGELES CA
2022-04-12 424-467-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 W ANGELES CA
2022-04-11 424-857-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNMN MRVS CA
2022-04-06 424-298-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J CULVERCITY CA
2022-03-23 424-655-5XXX 5000–5999Assigned FRACTEL, LLC 965H INGLEWOOD CA
2022-03-23 424-944-4XXX 4000–4999Assigned FRACTEL, LLC 965H BEVERLYHLS CA
2022-03-21 424-481-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 HAWTHORNE CA
2022-03-16 424-463-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 INGLEWOOD CA
2022-03-16 424-463-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 INGLEWOOD CA
2022-03-15 424-294-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J HAWTHORNE CA
2022-03-04 424-473-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SAN PEDRO CA
2022-03-04 424-599-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BEVERLYHLS CA
2022-03-03 424-675-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F HAWTHORNE CA
2022-03-02 424-544-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 EL SEGUNDO CA
2022-02-25 424-461-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LOMITA CA
2022-02-25 424-857-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SNMN MRVS CA
2022-02-25 424-857-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SNMN MRVS CA
2022-02-22 424-464-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MALIBU CA
2022-02-22 424-467-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F W ANGELES CA
2022-02-22 424-471-7XXX 7000–7999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F REDONDO CA
2022-02-22 424-844-4XXX 4000–4999Assigned FRACTEL, LLC 965H SNMN SNMN CA
2022-02-14 424-460-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CULVERCITY CA
2022-02-14 424-460-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CULVERCITY CA
2022-02-14 424-867-5XXX 5000–5999Assigned COMMIO, LLC 939H CMTN CMTN CA
2022-02-14 424-902-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNMN SNMN CA
2022-02-14 424-902-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNMN SNMN CA
2022-02-14 424-902-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNMN SNMN CA
2022-02-10 424-473-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SAN PEDRO CA
2022-02-10 424-473-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SAN PEDRO CA
2022-02-10 424-473-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SAN PEDRO CA
2022-02-04 424-728-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 CMTN GRDN CA

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.