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
2010-05-05 650-552-7XXX 7000–7999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MILLBRAE CA
2010-04-26 650-489-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SNCRL-BLMT CA
2010-04-26 650-530-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F WOODSIDE CA
2010-04-26 650-984-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PACIFICA CA
2010-04-23 650-687-8XXX 8000–8999Assigned LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 7718 PALO ALTO CA
2010-04-13 650-209-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LOS ALTOS CA
2010-03-31 650-690-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 7718 PALO ALTO CA
2010-03-31 650-924-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 7718 PALO ALTO CA
2010-03-26 650-627-3XXX 3000–3999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 SAN MATEO CA
2010-03-25 650-560-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L HALFMOONBY CA
2010-03-25 650-563-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L MOSS BEACH CA
2010-03-11 650-646-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PALO ALTO CA
2010-03-08 650-397-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LOS ALTOS CA
2010-03-08 650-456-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PESCADERO CA
2010-03-08 650-542-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F REDWOOD CY CA
2010-03-08 650-719-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MOSS BEACH CA
2010-03-08 650-729-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F HALFMOONBY CA
2010-03-08 650-747-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LA HONDA CA
2010-03-08 650-763-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SSNFRNCSCO CA
2010-02-19 650-294-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C SAN MATEO CA
2010-02-19 650-532-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C SAN MATEO CA
2010-02-17 650-421-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 REDWOOD CY CA
2010-02-17 650-421-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 REDWOOD CY CA
2010-02-11 650-394-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C SNCRL-BLMT CA
2010-02-11 650-681-3XXX 3000–3999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J PALO ALTO CA
2010-02-09 650-262-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PESCADERO CA
2010-02-08 650-741-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SSNFRNCSCO CA
2010-02-06 650-383-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C LOS ALTOS CA
2010-02-01 650-206-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E WOODSIDE CA
2010-02-01 650-206-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E WOODSIDE CA
2010-02-01 650-394-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNCRL-BLMT CA
2010-02-01 650-394-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNCRL-BLMT CA
2010-02-01 650-409-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MILLBRAE CA
2010-02-01 650-409-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MILLBRAE CA
2010-02-01 650-440-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E HALFMOONBY CA
2010-02-01 650-440-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E HALFMOONBY CA
2010-02-01 650-516-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PACIFICA CA
2010-02-01 650-516-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PACIFICA CA
2010-02-01 650-549-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E REDWOOD CY CA
2010-02-01 650-549-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E REDWOOD CY CA
2010-01-28 650-204-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MILLBRAE CA
2010-01-28 650-427-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PALO ALTO CA
2010-01-28 650-427-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PALO ALTO CA
2010-01-28 650-485-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PALO ALTO CA
2010-01-28 650-485-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PALO ALTO CA
2010-01-28 650-762-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SAN MATEO CA
2010-01-28 650-762-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SAN MATEO CA
2010-01-28 650-762-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SAN MATEO CA
2010-01-28 650-762-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SAN MATEO CA
2010-01-27 650-318-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MT VIEW 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.