NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

25 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 19
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
2022-08-19 650-541-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SAN MATEO CA
2022-08-19 650-602-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MT VIEW CA
2022-08-19 650-647-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F REDWOOD CY CA
2022-08-19 650-664-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MT VIEW CA
2022-08-19 650-719-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MOSS BEACH CA
2022-08-19 650-782-1XXX 1000–1999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LOS ALTOS CA
2022-08-19 650-882-7XXX 7000–7999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PESCADERO CA
2022-08-17 650-640-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SNCRL-BLMT CA
2022-08-17 650-671-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SSNFRNCSCO CA
2022-08-08 650-609-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MILLBRAE CA
2022-08-08 650-749-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LA HONDA CA
2022-08-05 650-664-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MT VIEW CA
2022-08-05 650-664-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MT VIEW CA
2022-08-05 650-664-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MT VIEW CA
2022-08-04 650-733-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J PACIFICA CA
2022-08-02 650-671-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SSNFRNCSCO CA
2022-08-02 650-671-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SSNFRNCSCO CA
2022-08-02 650-671-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SSNFRNCSCO CA
2022-08-02 650-671-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SSNFRNCSCO CA
2022-08-02 650-671-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SSNFRNCSCO CA
2022-07-21 650-698-2XXX 2000–2999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PALO ALTO CA
2022-07-20 650-609-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MILLBRAE CA
2022-07-20 650-609-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MILLBRAE CA
2022-07-15 650-613-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H PALO ALTO CA
2022-07-15 650-613-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H PALO ALTO CA
2022-07-11 650-658-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C WOODSIDE CA
2022-07-11 650-658-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C WOODSIDE CA
2022-07-11 650-658-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C WOODSIDE CA
2022-07-11 650-658-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C WOODSIDE CA
2022-07-11 650-658-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C WOODSIDE CA
2022-07-11 650-658-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C WOODSIDE CA
2022-07-11 650-658-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C WOODSIDE CA
2022-07-11 650-658-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C WOODSIDE CA
2022-07-11 650-658-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C WOODSIDE CA
2022-07-11 650-658-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C WOODSIDE CA
2022-07-01 650-640-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNCRL-BLMT CA
2022-06-20 650-507-2XXX 2000–2999Assigned COMMIO, LLC 939H PALO ALTO CA
2022-06-20 650-563-0XXX 0000–0999Assigned COMMIO, LLC 939H MOSS BEACH CA
2022-06-20 650-748-9XXX 9000–9999Assigned COMMIO, LLC 939H LA HONDA CA
2022-06-16 650-664-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MT VIEW CA
2022-06-16 650-664-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MT VIEW CA
2022-06-16 650-698-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALO ALTO CA
2022-06-16 650-698-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALO ALTO CA
2022-06-10 650-541-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SAN MATEO CA
2022-06-10 650-541-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SAN MATEO CA
2022-06-10 650-602-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MT VIEW CA
2022-06-09 650-663-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PACIFICA CA
2022-05-31 650-547-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C WOODSIDE CA
2022-05-31 650-547-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C WOODSIDE CA
2022-05-31 650-547-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C WOODSIDE 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.