NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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
2014-01-17 304-729-8XXX 8000–8999Assigned CSC VOICE, LLC 612K CHRLSTNZN5 WV
2014-01-17 304-935-2XXX 2000–2999Assigned CSC VOICE, LLC 612K CHRLSTNZN3 WV
2014-01-17 304-984-7XXX 7000–7999Assigned CSC VOICE, LLC 612K CHRLSTNZN2 WV
2014-01-16 304-305-6XXX 6000–6999Assigned CSC VOICE, LLC 612K BELMONT WV
2014-01-16 304-310-2XXX 2000–2999Assigned CSC VOICE, LLC 612K CHAPMANVL WV
2014-01-16 304-606-8XXX 8000–8999Assigned SHENTEL COMMUNICATIONS, LLC. - WV 489F BELINGTON WV
2014-01-16 304-779-4XXX 4000–4999Assigned CSC VOICE, LLC 612K ALLOY WV
2014-01-16 304-833-2XXX 2000–2999Assigned CSC VOICE, LLC 612K BRUSHTON WV
2014-01-14 304-620-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 MARTINSBG WV
2014-01-07 304-305-4XXX 4000–4999Assigned ONVOY, LLC - WV 449F BELMONT WV
2014-01-07 304-684-6XXX 6000–6999Assigned ONVOY, LLC - WV 449F ST MARYS WV
2013-12-18 304-689-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SUTTON WV
2013-12-17 304-405-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WEST UNION WV
2013-12-16 304-309-2XXX 2000–2999Assigned ONVOY, LLC - WV 449F HINTON WV
2013-12-11 304-931-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 CLARKSBURG WV
2013-12-06 304-350-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MARTINSBG WV
2013-11-26 304-905-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WHELNGZON1 WV
2013-11-06 304-435-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHEAT LAKE WV
2013-10-25 304-953-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LOGAN WV
2013-10-25 304-953-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LOGAN WV
2013-10-16 304-362-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 BECKLEY WV
2013-10-11 304-918-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CLARKSBURG WV
2013-10-04 304-800-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BLUEFIELD WV
2013-10-04 304-800-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BLUEFIELD WV
2013-09-11 304-350-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WV 077G MARTINSBG WV
2013-09-11 304-350-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WV 077G MARTINSBG WV
2013-09-11 304-350-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WV 077G MARTINSBG WV
2013-08-22 304-435-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHEAT LAKE WV
2013-08-20 304-918-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K CLARKSBURG WV
2013-08-08 304-937-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 BUFFALO WV
2013-07-31 304-315-8XXX 8000–8999Assigned CORETEL WEST VIRGINIA, INC. - WV 5833 ROCK CAVE WV
2013-07-31 304-336-1XXX 1000–1999Assigned CORETEL WEST VIRGINIA, INC. - WV 5833 WHELNGZON2 WV
2013-07-31 304-359-9XXX 9000–9999Assigned CORETEL WEST VIRGINIA, INC. - WV 5833 ROMNEY WV
2013-07-31 304-370-6XXX 6000–6999Assigned CORETEL WEST VIRGINIA, INC. - WV 5833 SALEM WV
2013-07-31 304-371-8XXX 8000–8999Assigned CORETEL WEST VIRGINIA, INC. - WV 5833 SHINNSTON WV
2013-07-31 304-401-8XXX 8000–8999Assigned CORETEL WEST VIRGINIA, INC. - WV 5833 SISTERSVL WV
2013-07-31 304-404-8XXX 8000–8999Assigned CORETEL WEST VIRGINIA, INC. - WV 5833 W MILFORD WV
2013-07-31 304-454-1XXX 1000–1999Assigned CORETEL WEST VIRGINIA, INC. - WV 5833 ROWLESBURG WV
2013-07-31 304-470-1XXX 1000–1999Assigned CORETEL WEST VIRGINIA, INC. - WV 5833 PHILIPPI WV
2013-07-31 304-551-9XXX 9000–9999Assigned CORETEL WEST VIRGINIA, INC. - WV 5833 WHELNGZON1 WV
2013-07-31 304-602-8XXX 8000–8999Assigned CORETEL WEST VIRGINIA, INC. - WV 5833 RIVESVILLE WV
2013-07-31 304-603-8XXX 8000–8999Assigned CORETEL WEST VIRGINIA, INC. - WV 5833 TUNNELTON WV
2013-07-31 304-605-3XXX 3000–3999Assigned CORETEL WEST VIRGINIA, INC. - WV 5833 WELLSBURG WV
2013-07-31 304-666-0XXX 0000–0999Assigned CORETEL WEST VIRGINIA, INC. - WV 5833 WEST UNION WV
2013-07-31 304-689-9XXX 9000–9999Assigned CORETEL WEST VIRGINIA, INC. - WV 5833 SUTTON WV
2013-07-31 304-789-0XXX 0000–0999Assigned CORETEL WEST VIRGINIA, INC. - WV 5833 TERRA ALTA WV
2013-07-31 304-810-1XXX 1000–1999Assigned CORETEL WEST VIRGINIA, INC. - WV 5833 WHELNGZON5 WV
2013-07-31 304-837-1XXX 1000–1999Assigned CORETEL WEST VIRGINIA, INC. - WV 5833 SETH WV
2013-07-31 304-909-1XXX 1000–1999Assigned CORETEL WEST VIRGINIA, INC. - WV 5833 WHELNGZON3 WV
2013-07-31 304-980-0XXX 0000–0999Assigned CORETEL WEST VIRGINIA, INC. - WV 5833 REEDSVILLE WV

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.