NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

2 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 304
T-MOBILE USA, INC. 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 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
2021-05-06 304-753-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H PETERSTOWN WV
2021-05-06 304-829-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H BETHANY WV
2021-05-06 304-850-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H WILLIAMSTN WV
2021-05-06 304-878-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H BUCKHANNON WV
2021-05-06 304-936-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H WINFIELD WV
2021-05-05 304-427-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H HILLSBORO WV
2021-05-05 304-600-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H LETART WV
2021-05-05 304-648-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H FORT GAY WV
2021-05-05 304-774-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H HELEN WV
2021-05-05 304-814-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H BUFFALO WV
2021-05-05 304-832-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H GREENVILLE WV
2021-05-05 304-836-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H BRUSHTON WV
2021-05-05 304-978-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H CLAY WV
2021-05-04 304-973-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H BELMONT WV
2021-04-22 304-627-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H CLARKSBURG WV
2021-04-22 304-672-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H CLARKSBURG WV
2021-04-22 304-838-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H CLARKSBURG WV
2021-04-13 304-761-5XXX 5000–5999Assigned METROPCS, INC. 5562 RIPLEY WV
2021-04-13 304-910-5XXX 5000–5999Assigned METROPCS, INC. 5562 BLUEFIELD WV
2021-04-06 304-473-9XXX 9000–9999Assigned UNITED STATES CELLULAR - WV 6284 BUCKHANNON WV
2021-03-31 304-200-6XXX 6000–6999Assigned ONVOY, LLC - WV 449F WILLIAMSTN WV
2021-03-31 304-200-8XXX 8000–8999Assigned ONVOY, LLC - WV 449F WILLIAMSTN WV
2021-03-31 304-445-9XXX 9000–9999Assigned ONVOY, LLC - WV 449F ALDERSON WV
2021-03-31 304-985-8XXX 8000–8999Assigned METROPCS, INC. 5562 MORGANTOWN WV
2021-03-29 304-980-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 REEDSVILLE WV
2021-03-26 304-860-4XXX 4000–4999Assigned METROPCS, INC. 5562 BECKLEY WV
2021-03-01 304-880-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SUMMERSVL WV
2021-03-01 304-943-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 MORGANTOWN WV
2021-03-01 304-996-7XXX 7000–7999Assigned PEERLESS NETWORK OF WEST VIRGINIA, LLC - WV 928H KINGWOOD WV
2021-02-26 304-394-4XXX 4000–4999Assigned ONVOY, LLC - WV 449F BEECHBTTOM WV
2021-02-26 304-408-3XXX 3000–3999Assigned ONVOY, LLC - WV 449F BETHANY WV
2021-02-26 304-484-9XXX 9000–9999Assigned ONVOY, LLC - WV 449F MDW BRIDGE WV
2021-02-26 304-486-9XXX 9000–9999Assigned ONVOY, LLC - WV 449F PRICHARD WV
2021-02-26 304-491-8XXX 8000–8999Assigned ONVOY, LLC - WV 449F WEIRTON WV
2021-02-26 304-557-1XXX 1000–1999Assigned ONVOY, LLC - WV 449F PRINCETON WV
2021-02-26 304-557-2XXX 2000–2999Assigned ONVOY, LLC - WV 449F PRINCETON WV
2021-02-26 304-648-1XXX 1000–1999Assigned ONVOY, LLC - WV 449F FORT GAY WV
2021-02-26 304-659-5XXX 5000–5999Assigned ONVOY, LLC - WV 449F PENNSBORO WV
2021-02-26 304-660-1XXX 1000–1999Assigned ONVOY, LLC - WV 449F HINTON WV
2021-02-26 304-832-8XXX 8000–8999Assigned ONVOY, LLC - WV 449F GREENVILLE WV
2021-02-26 304-967-3XXX 3000–3999Assigned ONVOY, LLC - WV 449F BRADSHAW WV
2021-02-26 304-994-3XXX 3000–3999Assigned ONVOY, LLC - WV 449F PETERSTOWN WV
2021-02-26 304-994-6XXX 6000–6999Assigned ONVOY, LLC - WV 449F PETERSTOWN WV
2021-02-26 304-999-1XXX 1000–1999Assigned ONVOY, LLC - WV 449F FORT ASHBY WV
2021-02-17 304-956-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F WHSLPHRSPG WV
2021-02-11 304-557-8XXX 8000–8999Assigned TELNYX LLC 073H PRINCETON WV
2021-02-11 304-577-1XXX 1000–1999Assigned ONVOY, LLC - WV 449F WALTON WV
2021-02-11 304-577-2XXX 2000–2999Assigned TELNYX LLC 073H WALTON WV
2021-02-11 304-577-8XXX 8000–8999Assigned ONVOY, LLC - WV 449F WALTON WV
2021-02-11 304-812-9XXX 9000–9999Assigned ONVOY, LLC - WV 449F PTPLEASANT WV

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.