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
2008-10-13 304-586-8XXX 8000–8999Assigned FIBERNET, LLC - WV 4095 WINFIELD WV
2008-10-13 304-710-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HNTNGTNZN1 WV
2008-10-13 304-816-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FAIRMONT WV
2008-10-13 304-948-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HNTNGTNZN2 WV
2008-10-10 304-710-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HNTNGTNZN1 WV
2008-10-10 304-710-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HNTNGTNZN1 WV
2008-10-10 304-710-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HNTNGTNZN1 WV
2008-10-10 304-710-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HNTNGTNZN1 WV
2008-10-10 304-710-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HNTNGTNZN1 WV
2008-10-09 304-841-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 CLARKSBURG WV
2008-10-09 304-841-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 CLARKSBURG WV
2008-10-06 304-777-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHEAT LAKE WV
2008-10-03 304-554-2XXX 2000–2999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B MORGANTOWN WV
2008-10-03 304-780-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WHELNGZON1 WV
2008-10-01 304-469-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 OAK HILL WV
2008-09-29 304-916-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PRKRSBGZN1 WV
2008-09-18 304-531-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RIPLEY WV
2008-09-16 304-207-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BECKLEY WV
2008-09-16 304-979-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BRIDGEPORT WV
2008-09-11 304-940-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ELKINS WV
2008-09-11 304-940-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ELKINS WV
2008-09-10 304-964-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 SCOTTDEPOT WV
2008-09-08 304-200-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WILLIAMSTN WV
2008-09-04 304-410-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F CHRLSTNZN1 WV
2008-09-04 304-703-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MOOREFIELD WV
2008-08-27 304-916-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PRKRSBGZN1 WV
2008-08-27 304-916-9XXX 9000–9999Assigned METROPCS, INC. 5562 PRKRSBGZN1 WV
2008-08-19 304-437-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CHRLSTNZN1 WV
2008-08-12 304-694-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAIRMONT WV
2008-08-11 304-707-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 MARTINSBG WV
2008-08-11 304-707-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 MARTINSBG WV
2008-08-07 304-903-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J GRAFTON WV
2008-08-06 304-300-0XXX 0000–0999Assigned YMAX COMMUNICATIONS CORP. - WV 368E CLARKSBURG WV
2008-08-06 304-300-1XXX 1000–1999Assigned YMAX COMMUNICATIONS CORP. - WV 368E CLARKSBURG WV
2008-08-06 304-300-2XXX 2000–2999Assigned YMAX COMMUNICATIONS CORP. - WV 368E CLARKSBURG WV
2008-08-06 304-300-3XXX 3000–3999Assigned YMAX COMMUNICATIONS CORP. - WV 368E CLARKSBURG WV
2008-08-06 304-300-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. - WV 368E CLARKSBURG WV
2008-08-06 304-701-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 SUTTON WV
2008-08-06 304-940-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ELKINS WV
2008-08-05 304-373-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 RIPLEY WV
2008-07-31 304-301-4XXX 4000–4999Assigned CSC VOICE, LLC 612K ATHENS WV
2008-07-25 304-988-8XXX 8000–8999Assigned CSC VOICE, LLC 612K CHRLSTNZN2 WV
2008-07-23 304-809-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 BLUEFIELD WV
2008-07-21 304-848-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B BRIDGEPORT WV
2008-07-15 304-997-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WESTON WV
2008-07-03 304-777-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHEAT LAKE WV
2008-07-02 304-209-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 KEYSER WV
2008-06-25 304-400-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHRLSTNZN1 WV
2008-06-25 304-591-5XXX 5000–5999Assigned METROPCS, INC. 5562 ELKINS WV
2008-06-23 304-396-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 OAKVALE 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.