NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

18 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 661
ONVOY, LLC - CA 10
TELEPORT COMMUNICATIONS AMERICA, LLC - CA 3
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 3
PEERLESS NETWORK OF CALIFORNIA, 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
2021-10-19 661-660-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H SNCA SGCC CA
2021-10-19 661-660-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SNCA SGCC CA
2021-10-19 661-769-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C TAFT CA
2021-10-19 661-769-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C TAFT CA
2021-10-19 661-786-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H SNCA SGCC CA
2021-10-18 661-336-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H BKFD MAIN CA
2021-10-18 661-337-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H BKFD MAIN CA
2021-10-18 661-337-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H BKFD MAIN CA
2021-10-18 661-637-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H BKFD MAIN CA
2021-10-18 661-638-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H BKFD MAIN CA
2021-10-14 661-515-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H HI VISTA CA
2021-10-14 661-580-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H PLDL PLDL CA
2021-10-14 661-580-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H PLDL PLDL CA
2021-10-14 661-780-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H PLDL LNVY CA
2021-10-14 661-780-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H PLDL LNVY CA
2021-10-11 661-777-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LEBEC CA
2021-10-08 661-580-0XXX 0000–0999Assigned TELNYX LLC 073H PLDL PLDL CA
2021-10-08 661-749-2XXX 2000–2999Assigned TELNYX LLC 073H MOJAVE CA
2021-09-29 661-551-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C BERENDMESA CA
2021-09-29 661-760-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C BUTTONWLLW CA
2021-09-28 661-512-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J PLDL AGDL CA
2021-09-22 661-420-6XXX 6000–6999Assigned COMMIO, LLC 939H CUYAMA CA
2021-09-22 661-420-7XXX 7000–7999Assigned COMMIO, LLC 939H CUYAMA CA
2021-09-22 661-420-8XXX 8000–8999Assigned COMMIO, LLC 939H CUYAMA CA
2021-09-22 661-420-9XXX 9000–9999Assigned COMMIO, LLC 939H CUYAMA CA
2021-09-22 661-550-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BIG BUTTE CA
2021-09-20 661-456-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J PLDL PLDL CA
2021-09-14 661-548-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C CLFRNHTSPG CA
2021-09-13 661-624-5XXX 5000–5999Assigned TON80 COMMUNICATIONS, LLC 516J BKFD SOUTH CA
2021-09-10 661-518-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J TEHACHAPI CA
2021-09-09 661-460-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C WALKERBSIN CA
2021-09-09 661-460-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C WALKERBSIN CA
2021-09-09 661-933-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J BKFD NORTH CA
2021-09-07 661-242-3XXX 3000–3999Assigned TERRA NOVA TELECOM INC. 145J LEBEC CA
2021-09-07 661-258-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J EDWARDS CA
2021-09-07 661-337-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BKFD MAIN CA
2021-09-07 661-337-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BKFD MAIN CA
2021-09-07 661-457-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J LOST HILLS CA
2021-09-07 661-536-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J GLENNVILLE CA
2021-09-07 661-763-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J TAFT CA
2021-09-07 661-849-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J EARLIMART CA
2021-09-02 661-580-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PLDL PLDL CA
2021-09-02 661-580-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PLDL PLDL CA
2021-09-02 661-580-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PLDL PLDL CA
2021-09-02 661-580-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PLDL PLDL CA
2021-09-02 661-580-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PLDL PLDL CA
2021-09-02 661-580-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PLDL PLDL CA
2021-09-02 661-580-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PLDL PLDL CA
2021-09-01 661-521-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PLDL PLDL CA
2021-09-01 661-521-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PLDL PLDL 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.