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
2025-06-20 534-241-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-06-20 534-242-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-06-20 534-242-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-06-20 534-242-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-06-20 534-242-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-06-20 534-242-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-06-20 534-242-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-06-20 534-242-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-06-20 534-242-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-06-20 534-242-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-06-20 534-242-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-06-18 534-333-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J CHILI WI
2025-06-18 534-666-2XXX 2000–2999Assigned TERRA NOVA TELECOM INC. 145J GREENWOOD WI
2025-06-17 534-222-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J AMHERST WI
2025-06-17 534-227-7XXX 7000–7999Assigned TERRA NOVA TELECOM INC. 145J COLBY WI
2025-06-17 534-363-3XXX 3000–3999Assigned TERRA NOVA TELECOM INC. 145J GRANTON WI
2025-05-22 534-235-3XXX 3000–3999Assigned UNITED STATES CELLULAR - WI 6274 CLINTONVL WI
2025-05-16 534-237-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-05-16 534-237-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-05-16 534-237-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-05-16 534-237-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-05-16 534-237-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-05-16 534-237-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-05-16 534-237-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-05-16 534-237-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-05-16 534-241-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-05-16 534-241-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-05-16 534-241-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-05-16 534-241-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-05-16 534-241-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-05-16 534-241-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-05-12 534-535-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K JUNCTIONCY WI
2025-05-12 534-777-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K VESPER WI
2025-04-18 534-240-1XXX 1000–1999Assigned NUSO, LLC 478J MENOMONIE WI
2025-04-15 534-232-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C WAUSAU WI
2025-04-15 534-237-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C RHINELANDR WI
2025-03-31 534-758-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SCANDINVIA WI
2025-03-24 534-237-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RHINELANDR WI
2025-02-28 534-235-0XXX 0000–0999Assigned METROPCS, INC. 5562 CLINTONVL WI
2025-02-28 534-236-0XXX 0000–0999Assigned METROPCS, INC. 5562 BLCKRIVFLS WI
2025-02-28 534-254-4XXX 4000–4999Assigned METROPCS, INC. 5562 WAUPACA WI
2025-02-13 534-232-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C WAUSAU WI
2025-02-06 534-768-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K AMBERG WI
2025-01-21 534-535-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 JUNCTIONCY WI
2025-01-16 534-235-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLINTONVL WI
2025-01-16 534-236-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 BLCKRIVFLS WI
2024-12-20 534-530-0XXX 0000–0999Assigned LEAP TELECOM, LLC 616J EAU CLAIRE WI
2024-12-18 534-232-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUSAU WI
2024-12-18 534-232-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUSAU WI
2024-12-13 534-232-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C WAUSAU 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.