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
2024-02-14 534-228-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2024-02-14 534-228-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2024-02-14 534-230-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2024-02-14 534-230-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2024-02-14 534-230-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2024-02-14 534-230-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2024-02-14 534-230-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2024-02-14 534-230-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2024-02-14 534-230-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2024-02-08 534-210-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C RIVERFALLS WI
2024-02-08 534-210-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C RIVERFALLS WI
2024-02-06 534-254-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C WAUPACA WI
2024-02-06 534-794-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C MOSINEE WI
2024-01-26 534-200-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C EAU CLAIRE WI
2024-01-26 534-200-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C EAU CLAIRE WI
2024-01-26 534-200-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C EAU CLAIRE WI
2024-01-26 534-204-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C EAU CLAIRE WI
2024-01-26 534-204-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C EAU CLAIRE WI
2024-01-26 534-215-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 SOMERSET WI
2024-01-26 534-228-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2024-01-26 534-228-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2024-01-26 534-228-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2024-01-26 534-228-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2024-01-26 534-228-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2024-01-26 534-228-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-12-14 534-228-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-12-13 534-225-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-12-13 534-225-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-12-13 534-225-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-12-13 534-225-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-11-28 534-200-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 EAU CLAIRE WI
2023-11-02 534-544-9XXX 9000–9999Assigned VONAGE AMERICA LLC 197D HUDSON WI
2023-10-27 534-226-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-10-27 534-226-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-10-27 534-226-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-10-27 534-226-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-10-27 534-226-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-10-27 534-226-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICE LAKE WI
2023-10-24 534-333-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CHILI WI
2023-10-05 534-234-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J AUBURNDALE WI
2023-09-28 534-223-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C RICE LAKE WI
2023-09-28 534-223-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C RICE LAKE WI
2023-09-27 534-277-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 STEVENS PT WI
2023-09-26 534-626-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F WAUSAU WI
2023-09-21 534-666-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GREENWOOD WI
2023-09-20 534-216-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-09-20 534-221-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-09-20 534-221-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-09-20 534-221-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2023-09-20 534-225-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR 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.