NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

4 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 534
ONVOY, LLC - WI 4
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
2023-09-20 534-225-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-09-20 534-225-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-09-20 534-225-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-09-20 534-225-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-09-20 534-225-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-09-05 534-224-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C BIRCHWOOD WI
2023-09-05 534-787-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C MATTOON WI
2023-09-05 534-900-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C PICKEREL WI
2023-09-05 534-901-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C WAUSAU WI
2023-08-17 534-223-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-08-17 534-223-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-08-17 534-223-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-08-17 534-223-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-08-17 534-223-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-08-17 534-223-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-08-17 534-223-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-08-17 534-223-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-08-16 534-227-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C COLBY WI
2023-08-03 534-901-4XXX 4000–4999Assigned UNITED STATES CELLULAR - WI 6274 WAUSAU WI
2023-08-02 534-221-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-08-02 534-221-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-08-02 534-221-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-08-02 534-221-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-08-02 534-221-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-08-02 534-221-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-08-02 534-221-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-07-25 534-218-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-07-25 534-218-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-07-25 534-218-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-07-25 534-218-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-07-25 534-218-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-07-25 534-218-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-07-25 534-218-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-07-25 534-218-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-07-25 534-218-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-07-25 534-218-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-07-19 534-217-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C MERRILLAN WI
2023-07-19 534-220-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C CHIPPEWFLS WI
2023-07-19 534-277-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C STEVENS PT WI
2023-07-19 534-277-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C STEVENS PT WI
2023-07-19 534-277-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C STEVENS PT WI
2023-07-19 534-277-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C STEVENS PT WI
2023-07-19 534-277-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C STEVENS PT WI
2023-07-18 534-200-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C EAU CLAIRE WI
2023-07-18 534-200-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C EAU CLAIRE WI
2023-07-18 534-544-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C HUDSON WI
2023-07-12 534-234-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C AUBURNDALE WI
2023-07-12 534-535-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C JUNCTIONCY WI
2023-07-12 534-758-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C SCANDINVIA WI
2023-07-12 534-777-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C VESPER WI

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.