NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

31 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 530
ONVOY, LLC - CA 16
BANDWIDTH.COM CLEC, LLC - CA 6
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 4
OPENTACT INC. 3
T-MOBILE USA, INC. 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
2021-11-01 530-476-4XXX 4000–4999Assigned COMMIO, LLC 939H ARBUCKLE CA
2021-11-01 530-780-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 REDDING CA
2021-10-29 530-220-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DAVIS CA
2021-10-25 530-456-1XXX 1000–1999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F GRIDLEY CA
2021-10-25 530-522-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F CAMPTONVL CA
2021-10-25 530-649-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LIVE OAK CA
2021-10-25 530-655-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F NICOLAUS CA
2021-10-22 530-298-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H DAVIS CA
2021-10-22 530-298-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H DAVIS CA
2021-10-21 530-451-9XXX 9000–9999Assigned TON80 COMMUNICATIONS, LLC 516J SMARTSVL CA
2021-10-20 530-801-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H CHICO CA
2021-10-20 530-801-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H CHICO CA
2021-10-20 530-801-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H CHICO CA
2021-10-20 530-801-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H CHICO CA
2021-10-20 530-801-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H CHICO CA
2021-10-19 530-922-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C OROVILLE CA
2021-10-19 530-936-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C ORLAND CA
2021-10-14 530-489-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H HOMEWOOD CA
2021-10-14 530-489-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H HOMEWOOD CA
2021-10-14 530-609-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H ALLEGHANY CA
2021-10-14 530-609-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H ALLEGHANY CA
2021-10-14 530-654-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H DUNNIGAN CA
2021-10-14 530-699-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H DUNNIGAN CA
2021-10-14 530-835-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H NOSAN JUAN CA
2021-10-14 530-835-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H NOSAN JUAN CA
2021-10-14 530-866-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H COLFAX CA
2021-10-14 530-935-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H GEORGETOWN CA
2021-10-14 530-935-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H GEORGETOWN CA
2021-10-13 530-687-1XXX 1000–1999Assigned TON80 COMMUNICATIONS, LLC 516J NEVADACITY CA
2021-10-12 530-651-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J PLVL WEST CA
2021-10-07 530-773-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LOYALTON CA
2021-10-06 530-882-7XXX 7000–7999Assigned TERRA NOVA TELECOM INC. 145J RICHVALE CA
2021-10-04 530-800-7XXX 7000–7999Assigned SKYE TELECOM LLC DBA SKYETEL 622J CHICO CA
2021-10-01 530-850-0XXX 0000–0999Assigned SKYE TELECOM LLC DBA SKYETEL 622J VERDI CA
2021-10-01 530-977-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J AUBN NORTH CA
2021-09-24 530-699-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J DUNNIGAN CA
2021-09-22 530-785-0XXX 0000–0999Assigned COMMIO, LLC 939H AUBN MAIN CA
2021-09-22 530-785-1XXX 1000–1999Assigned COMMIO, LLC 939H AUBN MAIN CA
2021-09-22 530-785-2XXX 2000–2999Assigned COMMIO, LLC 939H AUBN MAIN CA
2021-09-22 530-785-3XXX 3000–3999Assigned COMMIO, LLC 939H AUBN MAIN CA
2021-09-21 530-857-1XXX 1000–1999Assigned IP HORIZON LLC 515J CHICO CA
2021-09-16 530-835-9XXX 9000–9999Assigned TON80 COMMUNICATIONS, LLC 516J NOSAN JUAN CA
2021-09-15 530-289-9XXX 9000–9999Assigned TON80 COMMUNICATIONS, LLC 516J DOWNIEVL CA
2021-09-15 530-780-0XXX 0000–0999Assigned COMMIO, LLC 939H REDDING CA
2021-09-15 530-780-1XXX 1000–1999Assigned COMMIO, LLC 939H REDDING CA
2021-09-15 530-780-2XXX 2000–2999Assigned COMMIO, LLC 939H REDDING CA
2021-09-15 530-780-3XXX 3000–3999Assigned COMMIO, LLC 939H REDDING CA
2021-09-15 530-780-4XXX 4000–4999Assigned COMMIO, LLC 939H REDDING CA
2021-09-14 530-881-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C VERDI CA
2021-09-10 530-390-1XXX 1000–1999Assigned COMMIO, LLC 939H LOSMOLINOS 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.