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
2011-05-20 304-621-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F ELKINS WV
2011-05-18 304-489-8XXX 8000–8999Assigned CAS COMMUNICATIONS, LLC - WV 875F MINERLWLLS WV
2011-05-18 304-709-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CLARKSBURG WV
2011-05-18 304-861-7XXX 7000–7999Assigned CAS COMMUNICATIONS, LLC - WV 875F PRKRSBGZN3 WV
2011-05-18 304-917-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PRKRSBGZN1 WV
2011-05-10 304-514-0XXX 0000–0999Assigned METROPCS, INC. 5562 RIPLEY WV
2011-05-06 304-917-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PRKRSBGZN1 WV
2011-05-05 304-964-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 SCOTTDEPOT WV
2011-05-05 304-992-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 LEWISBURG WV
2011-05-04 304-627-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CLARKSBURG WV
2011-04-25 304-224-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 WEIRTON WV
2011-04-25 304-491-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 WEIRTON WV
2011-04-25 304-896-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LOGAN WV
2011-04-25 304-902-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRANKLIN WV
2011-04-18 304-370-2XXX 2000–2999Assigned SHENTEL COMMUNICATIONS, LLC. - WV 489F SALEM WV
2011-04-18 304-516-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 BUCKHANNON WV
2011-04-18 304-809-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BLUEFIELD WV
2011-04-18 304-809-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BLUEFIELD WV
2011-04-18 304-809-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BLUEFIELD WV
2011-04-18 304-809-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BLUEFIELD WV
2011-04-14 304-563-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 HNTNGTNZN1 WV
2011-04-14 304-730-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 HNTNGTNZN1 WV
2011-04-14 304-767-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CHRLSTNZN1 WV
2011-04-14 304-939-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 HNTNGTNZN1 WV
2011-04-14 304-939-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 HNTNGTNZN1 WV
2011-04-14 304-962-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 HNTNGTNZN1 WV
2011-04-12 304-605-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 WELLSBURG WV
2011-04-12 304-848-9XXX 9000–9999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B BRIDGEPORT WV
2011-04-08 304-604-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEIRTON WV
2011-04-08 304-719-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MOUNT HOPE WV
2011-04-08 304-719-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MOUNT HOPE WV
2011-04-08 304-809-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BLUEFIELD WV
2011-04-06 304-491-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 WEIRTON WV
2011-04-06 304-833-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - WV 368E BRUSHTON WV
2011-04-06 304-837-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - WV 368E SETH WV
2011-04-06 304-917-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WV 077G PRKRSBGZN1 WV
2011-04-06 304-945-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - WV 368E CHRLSTNZN5 WV
2011-04-06 304-945-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - WV 368E CHRLSTNZN5 WV
2011-04-06 304-945-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. - WV 368E CHRLSTNZN5 WV
2011-04-04 304-429-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 HNTNGTNZN1 WV
2011-04-04 304-563-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 HNTNGTNZN1 WV
2011-04-04 304-691-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 HNTNGTNZN1 WV
2011-04-04 304-691-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 HNTNGTNZN1 WV
2011-04-04 304-712-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F BECKLEY WV
2011-04-04 304-730-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 HNTNGTNZN1 WV
2011-04-04 304-751-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 HNTNGTNZN1 WV
2011-04-04 304-751-3XXX 3000–3999Assigned METROPCS, INC. 5562 HNTNGTNZN1 WV
2011-04-04 304-751-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 HNTNGTNZN1 WV
2011-04-04 304-751-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 HNTNGTNZN1 WV
2011-04-04 304-751-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 HNTNGTNZN1 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.