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 650
ONVOY, LLC - CA 11
T-MOBILE USA, INC. 4
BANDWIDTH.COM CLEC, LLC - CA 2
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
2012-06-28 650-513-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SAN MATEO CA
2012-06-28 650-600-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PALO ALTO CA
2012-06-28 650-614-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PALO ALTO CA
2012-06-28 650-825-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SSNFRNCSCO CA
2012-06-15 650-273-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SSNFRNCSCO CA
2012-06-12 650-600-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C PALO ALTO CA
2012-06-12 650-600-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C PALO ALTO CA
2012-06-12 650-779-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 REDWOOD CY CA
2012-06-12 650-839-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 REDWOOD CY CA
2012-06-11 650-605-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MT VIEW CA
2012-06-11 650-605-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MT VIEW CA
2012-06-06 650-316-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MT VIEW CA
2012-06-06 650-800-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C PALO ALTO CA
2012-06-06 650-800-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C PALO ALTO CA
2012-06-06 650-800-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C PALO ALTO CA
2012-06-06 650-800-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C PALO ALTO CA
2012-06-06 650-800-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C PALO ALTO CA
2012-06-06 650-800-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C PALO ALTO CA
2012-06-06 650-999-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C PALO ALTO CA
2012-06-06 650-999-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C PALO ALTO CA
2012-06-06 650-999-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C PALO ALTO CA
2012-06-06 650-999-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C PALO ALTO CA
2012-06-06 650-999-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C PALO ALTO CA
2012-06-01 650-516-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PACIFICA CA
2012-05-31 650-900-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C LOS ALTOS CA
2012-05-22 650-332-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E WOODSIDE CA
2012-05-22 650-458-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SAN MATEO CA
2012-05-22 650-549-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E REDWOOD CY CA
2012-05-22 650-564-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MT VIEW CA
2012-05-22 650-847-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PALO ALTO CA
2012-05-22 650-847-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PALO ALTO CA
2012-05-16 650-800-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PALO ALTO CA
2012-05-10 650-409-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MILLBRAE CA
2012-05-09 650-386-7XXX 7000–7999Assigned AT&T - LOCAL 7421 MT VIEW CA
2012-05-09 650-800-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L PALO ALTO CA
2012-04-30 650-562-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C REDWOOD CY CA
2012-04-27 650-732-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MILLBRAE CA
2012-04-23 650-474-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E REDWOOD CY CA
2012-04-13 650-252-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PALO ALTO CA
2012-04-13 650-252-1XXX 1000–1999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PALO ALTO CA
2012-04-13 650-252-2XXX 2000–2999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PALO ALTO CA
2012-04-13 650-252-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PALO ALTO CA
2012-04-13 650-252-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PALO ALTO CA
2012-04-13 650-252-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PALO ALTO CA
2012-04-13 650-252-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PALO ALTO CA
2012-04-13 650-252-7XXX 7000–7999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PALO ALTO CA
2012-04-13 650-252-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PALO ALTO CA
2012-04-13 650-252-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PALO ALTO CA
2012-04-06 650-282-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MT VIEW CA
2012-04-06 650-649-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 REDWOOD CY 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.