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
2004-03-08 304-375-0XXX 0000–0999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B WILLIAMSTN WV
2004-03-08 304-442-6XXX 6000–6999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B MONTGOMERY WV
2004-03-08 304-460-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B BUCKHANNON WV
2004-03-08 304-512-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B RAVENSWOOD WV
2004-03-08 304-574-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B FAYETTEVL WV
2004-03-08 304-577-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B WALTON WV
2004-03-08 304-586-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B WINFIELD WV
2004-03-08 304-592-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B SHINNSTON WV
2004-03-08 304-593-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B PTPLEASANT WV
2004-03-08 304-594-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B CHEAT LAKE WV
2004-03-08 304-595-8XXX 8000–8999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B EAST BANK WV
2004-03-08 304-635-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B ELKINS WV
2004-03-08 304-647-2XXX 2000–2999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B LEWISBURG WV
2004-03-08 304-648-6XXX 6000–6999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B FORT GAY WV
2004-03-08 304-652-0XXX 0000–0999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B SISTERSVL WV
2004-03-08 304-659-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B PENNSBORO WV
2004-03-08 304-664-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B GILBERT WV
2004-03-08 304-737-6XXX 6000–6999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B WELLSBURG WV
2004-03-08 304-753-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B PETERSTOWN WV
2004-03-08 304-765-6XXX 6000–6999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B SUTTON WV
2004-03-08 304-769-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B CHRLSTNZN6 WV
2004-03-08 304-786-8XXX 8000–8999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B RIPLEY WV
2004-03-08 304-789-4XXX 4000–4999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B TERRA ALTA WV
2004-03-08 304-794-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B WEIRTON WV
2004-03-08 304-815-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B NEWMRTNSVL WV
2004-03-08 304-846-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B RICHWOOD WV
2004-03-08 304-853-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B BURNSVILLE WV
2004-03-08 304-880-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B SUMMERSVL WV
2004-03-08 304-896-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B LOGAN WV
2004-03-08 304-902-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B FRANKLIN WV
2004-03-08 304-927-9XXX 9000–9999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B SPENCER WV
2004-03-08 304-935-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B CHRLSTNZN3 WV
2004-03-08 304-937-6XXX 6000–6999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B BUFFALO WV
2004-03-08 304-967-8XXX 8000–8999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B BRADSHAW WV
2004-02-11 304-329-8XXX 8000–8999Assigned FIBERNET, LLC - WV 4095 KINGWOOD WV
2004-02-11 304-466-8XXX 8000–8999Assigned FIBERNET, LLC - WV 4095 HINTON WV
2004-02-11 304-674-8XXX 8000–8999Assigned FIBERNET, LLC - WV 4095 PTPLEASANT WV
2004-02-11 304-854-8XXX 8000–8999Assigned FIBERNET, LLC - WV 4095 WHITESVL WV
2004-02-11 304-927-8XXX 8000–8999Assigned FIBERNET, LLC - WV 4095 SPENCER WV
2004-02-06 304-839-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MARTINSBG WV
2004-02-06 304-839-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MARTINSBG WV
2004-02-06 304-839-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MARTINSBG WV
2004-02-06 304-839-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MARTINSBG WV
2004-02-06 304-839-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MARTINSBG WV
2004-01-26 304-904-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 WESTON WV
2004-01-26 304-904-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 WESTON WV
2004-01-23 304-703-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MOOREFIELD WV
2004-01-16 304-886-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 FALLNGWTRS WV
2004-01-07 304-210-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PRKRSBGZN1 WV
2004-01-07 304-312-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WHELNGZON1 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.