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
2021-03-18 650-501-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PACIFICA CA
2021-03-09 650-394-0XXX 0000–0999Assigned SONIC TELECOM, LLC - CA 433E SNCRL-BLMT CA
2021-03-09 650-864-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MT VIEW CA
2021-03-01 650-732-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MILLBRAE CA
2021-03-01 650-732-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MILLBRAE CA
2021-03-01 650-732-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MILLBRAE CA
2021-02-18 650-418-8XXX 8000–8999Assigned METROPCS, INC. 5562 SAN MATEO CA
2021-02-18 650-491-2XXX 2000–2999Assigned METROPCS, INC. 5562 SSNFRNCSCO CA
2021-02-18 650-501-4XXX 4000–4999Assigned METROPCS, INC. 5562 PACIFICA CA
2021-02-18 650-531-0XXX 0000–0999Assigned METROPCS, INC. 5562 PALO ALTO CA
2021-02-03 650-718-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C MOSS BEACH CA
2021-02-02 650-648-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C MILLBRAE CA
2021-02-02 650-648-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C MILLBRAE CA
2021-02-01 650-586-0XXX 0000–0999Assigned TELNYX LLC 073H PALO ALTO CA
2021-01-30 650-582-0XXX 0000–0999Assigned TELNYX LLC 073H MT VIEW CA
2021-01-28 650-459-7XXX 7000–7999Assigned TELNYX LLC 073H HALFMOONBY CA
2021-01-28 650-491-1XXX 1000–1999Assigned TELNYX LLC 073H SSNFRNCSCO CA
2021-01-28 650-501-3XXX 3000–3999Assigned TELNYX LLC 073H PACIFICA CA
2021-01-27 650-662-4XXX 4000–4999Assigned TELNYX LLC 073H LA HONDA CA
2021-01-08 650-977-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PACIFICA CA
2020-12-10 650-284-5XXX 5000–5999Assigned TERRA NOVA TELECOM INC. 145J HALFMOONBY CA
2020-12-09 650-574-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J SAN MATEO CA
2020-12-09 650-808-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J SSNFRNCSCO CA
2020-12-08 650-552-3XXX 3000–3999Assigned TERRA NOVA TELECOM INC. 145J MILLBRAE CA
2020-12-04 650-744-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C MT VIEW CA
2020-12-04 650-744-1XXX 1000–1999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MT VIEW CA
2020-12-04 650-744-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C MT VIEW CA
2020-12-04 650-744-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C MT VIEW CA
2020-12-03 650-374-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C PALO ALTO CA
2020-12-03 650-374-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C PALO ALTO CA
2020-12-03 650-374-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C PALO ALTO CA
2020-12-03 650-374-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C PALO ALTO CA
2020-12-03 650-507-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C PALO ALTO CA
2020-12-02 650-470-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PALO ALTO CA
2020-11-25 650-526-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 MT VIEW CA
2020-11-19 650-531-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PALO ALTO CA
2020-11-16 650-744-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MT VIEW CA
2020-11-16 650-744-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MT VIEW CA
2020-11-16 650-744-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MT VIEW CA
2020-11-16 650-744-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MT VIEW CA
2020-11-16 650-744-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MT VIEW CA
2020-11-06 650-231-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C MILLBRAE CA
2020-11-06 650-231-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C MILLBRAE CA
2020-11-06 650-540-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C SSNFRNCSCO CA
2020-11-06 650-540-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C SSNFRNCSCO CA
2020-11-06 650-540-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SSNFRNCSCO CA
2020-11-06 650-540-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C SSNFRNCSCO CA
2020-11-06 650-628-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C SNCRL-BLMT CA
2020-11-06 650-628-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C SNCRL-BLMT CA
2020-11-06 650-649-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C 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.