NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

17 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
Clear Download CSV ↓
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 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.