NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

25 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 820
ONVOY, LLC - CA 18
T-MOBILE USA, INC. 3
NEW CINGULAR WIRELESS PCS, LLC 2
TELNYX LLC 1
PEERLESS NETWORK OF CALIFORNIA, LLC - CA 1
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
2022-02-28 820-842-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E OAKVIEW CA
2022-02-23 820-799-9XXX 9000–9999Assigned FRACTEL, LLC 965H CAMARILLO CA
2022-02-22 820-280-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LOS ALAMOS CA
2022-02-18 820-426-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J CAMARILLO CA
2022-02-16 820-209-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E GAVIOTA CA
2022-02-09 820-587-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H SANBARBARA CA
2022-02-09 820-587-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H SANBARBARA CA
2022-01-31 820-432-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NEWBURYPRK CA
2022-01-25 820-500-6XXX 6000–6999Assigned COMMIO, LLC 939H GAVIOTA CA
2022-01-25 820-800-5XXX 5000–5999Assigned COMMIO, LLC 939H CAYUCOS CA
2022-01-25 820-800-9XXX 9000–9999Assigned COMMIO, LLC 939H CAYUCOS CA
2022-01-13 820-600-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PISMOBEACH CA
2022-01-11 820-842-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E OAKVIEW CA
2022-01-10 820-837-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J OXNARD CA
2021-12-03 820-587-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C SANBARBARA CA
2021-11-17 820-336-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C GUADALUPE CA
2021-11-17 820-336-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C GUADALUPE CA
2021-11-17 820-336-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H GUADALUPE CA
2021-11-17 820-786-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H ATASCADERO CA
2021-11-17 820-786-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H ATASCADERO CA
2021-11-17 820-800-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H CAYUCOS CA
2021-11-17 820-800-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H CAYUCOS CA
2021-11-17 820-900-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H BRADLEY CA
2021-11-17 820-900-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H BRADLEY CA
2021-11-16 820-667-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 OXNARD CA
2021-11-16 820-667-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 OXNARD CA
2021-11-16 820-667-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 OXNARD CA
2021-11-16 820-667-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 OXNARD CA
2021-11-10 820-348-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C OXNARD CA
2021-11-09 820-206-1XXX 1000–1999Assigned METROPCS, INC. 5562 PASOROBLES CA
2021-11-05 820-432-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H NEWBURYPRK CA
2021-11-05 820-432-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H NEWBURYPRK CA
2021-10-27 820-200-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H THOUSAOAKS CA
2021-10-27 820-200-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H THOUSAOAKS CA
2021-10-19 820-667-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H OXNARD CA
2021-10-19 820-667-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H OXNARD CA
2021-10-19 820-667-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H OXNARD CA
2021-10-19 820-667-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H OXNARD CA
2021-10-19 820-667-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H OXNARD CA
2021-10-13 820-587-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANBARBARA CA
2021-10-07 820-500-9XXX 9000–9999Assigned TON80 COMMUNICATIONS, LLC 516J GAVIOTA CA
2021-09-30 820-400-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J PARKFIELD CA
2021-09-29 820-786-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ATASCADERO CA
2021-09-29 820-786-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ATASCADERO CA
2021-09-22 820-822-2XXX 2000–2999Assigned FRACTEL, LLC 965H OXNARD CA
2021-09-15 820-356-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J POINT MUGU CA
2021-09-09 820-336-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C GUADALUPE CA
2021-09-09 820-336-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C GUADALUPE CA
2021-08-23 820-587-8XXX 8000–8999Assigned FRACTEL, LLC 965H SANBARBARA CA
2021-08-19 820-946-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J SANTAMARIA CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.