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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2010-07-07 304-410-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 CHRLSTNZN1 WV
2010-07-07 304-514-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 RIPLEY WV
2010-07-07 304-710-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 HNTNGTNZN1 WV
2010-07-06 304-277-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 WHELNGZON1 WV
2010-06-25 304-986-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J MANNINGTON WV
2010-06-23 304-900-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F FAYETTEVL WV
2010-06-21 304-909-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WHELNGZON3 WV
2010-06-16 304-461-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F BECKLEY WV
2010-06-14 304-620-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 MARTINSBG WV
2010-06-10 304-209-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F KEYSER WV
2010-06-10 304-635-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F ELKINS WV
2010-06-04 304-356-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CHRLSTNZN1 WV
2010-06-04 304-356-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CHRLSTNZN1 WV
2010-06-04 304-356-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CHRLSTNZN1 WV
2010-06-04 304-406-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WESTON WV
2010-06-04 304-491-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 WEIRTON WV
2010-06-04 304-551-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 WHELNGZON1 WV
2010-06-04 304-777-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHEAT LAKE WV
2010-06-04 304-841-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 CLARKSBURG WV
2010-06-04 304-860-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 BECKLEY WV
2010-05-27 304-241-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J MORGANTOWN WV
2010-05-27 304-566-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F CLARKSBURG WV
2010-05-27 304-948-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 HNTNGTNZN2 WV
2010-05-24 304-578-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F BECKLEY WV
2010-05-12 304-716-3XXX 3000–3999Assigned LUMOS NETWORKS INC. - VA 7849 PRINCETON WV
2010-05-12 304-964-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 SCOTTDEPOT WV
2010-05-10 304-445-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 ALDERSON WV
2010-05-06 304-410-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 CHRLSTNZN1 WV
2010-05-06 304-410-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 CHRLSTNZN1 WV
2010-05-06 304-410-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 CHRLSTNZN1 WV
2010-05-06 304-710-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 HNTNGTNZN1 WV
2010-05-06 304-710-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 HNTNGTNZN1 WV
2010-04-13 304-308-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BLUEFIELD WV
2010-04-08 304-308-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 BLUEFIELD WV
2010-04-08 304-860-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 BECKLEY WV
2010-04-07 304-514-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 RIPLEY WV
2010-04-07 304-551-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 WHELNGZON1 WV
2010-04-07 304-997-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 WESTON WV
2010-04-05 304-400-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHRLSTNZN1 WV
2010-03-31 304-350-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 MARTINSBG WV
2010-03-31 304-666-1XXX 1000–1999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - WV 423C WEST UNION WV
2010-03-31 304-917-0XXX 0000–0999Assigned LUMOS NETWORKS INC. - VA 7849 PRKRSBGZN1 WV
2010-03-26 304-703-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MOOREFIELD WV
2010-03-26 304-917-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PRKRSBGZN1 WV
2010-03-26 304-933-8XXX 8000–8999Assigned LUMOS NETWORKS INC. - VA 7849 BRIDGEPORT WV
2010-03-19 304-410-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 CHRLSTNZN1 WV
2010-03-19 304-410-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 CHRLSTNZN1 WV
2010-03-19 304-410-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 CHRLSTNZN1 WV
2010-03-19 304-410-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 CHRLSTNZN1 WV
2010-03-19 304-590-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 CHRLSTNZN1 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.