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
2020-07-02 820-345-6XXX 6000–6999Assigned FRACTEL, LLC 965H EL RIO CA
2020-06-17 820-666-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H SNLUSOBSPO CA
2020-06-17 820-666-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H SNLUSOBSPO CA
2020-06-17 820-666-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H SNLUSOBSPO CA
2020-06-12 820-999-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C OXNARD CA
2020-06-12 820-999-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C OXNARD CA
2020-06-08 820-999-7XXX 7000–7999Assigned VONAGE AMERICA LLC 197D OXNARD CA
2020-06-08 820-999-8XXX 8000–8999Assigned VONAGE AMERICA LLC 197D OXNARD CA
2020-06-01 820-200-2XXX 2000–2999Assigned VONAGE AMERICA LLC 197D THOUSAOAKS CA
2020-06-01 820-200-3XXX 3000–3999Assigned VONAGE AMERICA LLC 197D THOUSAOAKS CA
2020-05-22 820-600-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PISMOBEACH CA
2020-05-13 820-300-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C GUADALUPE CA
2020-05-13 820-500-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C GAVIOTA CA
2020-05-13 820-500-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C GAVIOTA CA
2020-04-08 820-333-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C THOUSAOAKS CA
2020-04-08 820-333-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C THOUSAOAKS CA
2020-04-07 820-900-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C BRADLEY CA
2020-04-07 820-900-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C BRADLEY CA
2020-03-10 820-529-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PIRU CA
2020-03-10 820-777-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SANTAPAULA CA
2020-02-26 820-300-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 GUADALUPE CA
2020-02-13 820-202-2XXX 2000–2999Assigned CSC WIRELESS, LLC 425J SNLUSOBSPO CA
2019-12-17 820-529-3XXX 3000–3999Assigned FRACTEL, LLC 965H PIRU CA
2019-12-17 820-529-9XXX 9000–9999Assigned FRACTEL, LLC 965H PIRU CA
2019-12-05 820-500-0XXX 0000–0999Assigned FRACTEL, LLC 965H GAVIOTA CA
2019-12-05 820-500-5XXX 5000–5999Assigned FRACTEL, LLC 965H GAVIOTA CA
2019-12-05 820-600-0XXX 0000–0999Assigned FRACTEL, LLC 965H PISMOBEACH CA
2019-12-05 820-600-6XXX 6000–6999Assigned FRACTEL, LLC 965H PISMOBEACH CA
2019-12-05 820-800-0XXX 0000–0999Assigned FRACTEL, LLC 965H CAYUCOS CA
2019-12-05 820-800-8XXX 8000–8999Assigned FRACTEL, LLC 965H CAYUCOS CA
2019-12-05 820-900-0XXX 0000–0999Assigned FRACTEL, LLC 965H BRADLEY CA
2019-12-05 820-900-9XXX 9000–9999Assigned FRACTEL, LLC 965H BRADLEY CA
2019-10-23 820-888-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SIMIVALLEY CA
2019-10-02 820-280-9XXX 9000–9999Assigned HD CARRIER LLC 321J LOS ALAMOS CA
2019-08-16 820-300-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C GUADALUPE CA
2019-08-13 820-333-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C THOUSAOAKS CA
2019-08-13 820-333-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C THOUSAOAKS CA
2019-07-03 820-888-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SIMIVALLEY CA
2019-07-02 820-888-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SIMIVALLEY CA
2019-06-21 820-200-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 THOUSAOAKS CA
2019-06-19 820-400-4XXX 4000–4999Assigned FRACTEL, LLC 965H PARKFIELD CA
2019-05-20 820-888-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SIMIVALLEY CA
2019-05-16 820-300-3XXX 3000–3999Assigned FRACTEL, LLC 965H GUADALUPE CA
2019-05-10 820-777-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTAPAULA CA
2019-04-12 820-300-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C GUADALUPE CA
2019-03-15 820-333-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 THOUSAOAKS CA
2019-03-15 820-333-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 THOUSAOAKS CA
2019-03-04 820-333-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 THOUSAOAKS CA
2019-01-25 820-444-2XXX 2000–2999Assigned FRACTEL, LLC 965H NEWBURYPRK CA
2019-01-25 820-444-3XXX 3000–3999Assigned FRACTEL, LLC 965H NEWBURYPRK 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.