NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

31 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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 30
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
2023-09-29 657-696-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-09-29 657-696-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-09-29 657-696-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-09-29 657-696-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-09-29 657-696-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-09-29 657-697-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-09-29 657-697-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-09-29 657-697-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-09-29 657-697-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-09-29 657-697-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-09-29 657-697-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-09-29 657-697-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-09-29 657-697-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-09-29 657-697-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-09-29 657-697-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-09-29 657-698-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WESTMINSTR CA
2023-09-28 657-663-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C BUENA PARK CA
2023-09-28 657-663-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C BUENA PARK CA
2023-09-28 657-663-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C BUENA PARK CA
2023-09-28 657-671-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C BREA CA
2023-09-26 657-695-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 HUNTITNBCH CA
2023-09-26 657-695-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 HUNTITNBCH CA
2023-09-26 657-695-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 HUNTITNBCH CA
2023-09-26 657-695-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 HUNTITNBCH CA
2023-09-21 657-692-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-09-21 657-692-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-09-21 657-692-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-09-21 657-692-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-09-21 657-692-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-09-21 657-692-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-09-21 657-692-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-09-21 657-692-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-09-21 657-692-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-09-21 657-692-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ANAHEIM CA
2023-09-21 657-694-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-09-21 657-694-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-09-21 657-694-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-09-21 657-694-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-09-21 657-694-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-09-21 657-694-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-09-21 657-694-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-09-21 657-694-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-09-21 657-694-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-09-21 657-694-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HUNTITNBCH CA
2023-09-19 657-663-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C BUENA PARK CA
2023-09-19 657-663-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C BUENA PARK CA
2023-09-19 657-663-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C BUENA PARK CA
2023-09-18 657-670-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C WESTMINSTR CA
2023-09-18 657-670-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C WESTMINSTR CA
2023-09-18 657-670-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C WESTMINSTR CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.