NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

37 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 657
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 36
BANDWIDTH.COM CLEC, 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
2023-10-04 657-702-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-10-04 657-702-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-10-04 657-702-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-10-04 657-703-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-10-04 657-703-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-10-04 657-703-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-10-04 657-703-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-10-04 657-703-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-10-04 657-703-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-10-04 657-703-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-10-04 657-703-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-10-04 657-703-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-10-04 657-703-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-10-04 657-704-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C HUNTITNBCH CA
2023-10-04 657-704-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C HUNTITNBCH CA
2023-10-04 657-704-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C HUNTITNBCH CA
2023-10-04 657-704-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C HUNTITNBCH CA
2023-10-03 657-678-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H ANAHEIM CA
2023-10-03 657-678-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H ANAHEIM CA
2023-10-03 657-678-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H ANAHEIM CA
2023-10-02 657-679-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C GARDEN GRV CA
2023-10-02 657-681-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C FULLERTON CA
2023-10-02 657-681-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C FULLERTON CA
2023-10-02 657-681-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C FULLERTON CA
2023-10-02 657-681-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C FULLERTON CA
2023-10-02 657-681-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C FULLERTON CA
2023-10-02 657-681-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C FULLERTON CA
2023-10-02 657-689-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C CYPRESS CA
2023-10-02 657-689-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C CYPRESS CA
2023-10-02 657-689-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C CYPRESS CA
2023-10-02 657-689-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C CYPRESS CA
2023-10-02 657-701-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C GARDEN GRV CA
2023-10-02 657-701-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C GARDEN GRV CA
2023-10-02 657-701-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C GARDEN GRV CA
2023-10-02 657-701-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C GARDEN GRV CA
2023-10-02 657-701-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C GARDEN GRV CA
2023-10-02 657-701-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C GARDEN GRV CA
2023-10-02 657-701-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C GARDEN GRV CA
2023-10-02 657-701-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C GARDEN GRV CA
2023-10-01 657-689-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CYPRESS CA
2023-09-29 657-663-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BUENA PARK CA
2023-09-29 657-663-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BUENA PARK CA
2023-09-29 657-670-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WESTMINSTR CA
2023-09-29 657-679-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 GARDEN GRV CA
2023-09-29 657-679-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GARDEN GRV CA
2023-09-29 657-696-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-09-29 657-696-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-09-29 657-696-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-09-29 657-696-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-09-29 657-696-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM 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.