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
2015-01-14 304-223-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F FLAT TOP WV
2015-01-14 304-309-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F HINTON WV
2015-01-13 304-909-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J WHELNGZON3 WV
2015-01-08 304-731-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BECKLEY WV
2015-01-05 304-901-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 MARTINSBG WV
2014-12-30 304-800-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 BLUEFIELD WV
2014-12-15 304-359-4XXX 4000–4999Assigned UNITED STATES CELLULAR - WV 6284 ROMNEY WV
2014-12-11 304-303-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F RIDGELEY WV
2014-12-04 304-409-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 BLUEWELL WV
2014-11-25 304-223-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F FLAT TOP WV
2014-11-25 304-405-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F WEST UNION WV
2014-11-25 304-518-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F GRAFTON WV
2014-11-19 304-220-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F CHRLSTNZN4 WV
2014-11-19 304-935-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F CHRLSTNZN3 WV
2014-11-19 304-988-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F CHRLSTNZN2 WV
2014-11-10 304-885-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J CHARLES TN WV
2014-11-07 304-731-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BECKLEY WV
2014-10-21 304-931-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CLARKSBURG WV
2014-10-10 304-786-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RIPLEY WV
2014-10-10 304-792-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LOGAN WV
2014-10-10 304-992-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEWISBURG WV
2014-10-01 304-821-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J INWOOD WV
2014-09-30 304-503-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F FAIRVIEW WV
2014-09-30 304-504-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F FARMINGTON WV
2014-09-30 304-602-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F RIVESVILLE WV
2014-09-25 304-885-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 CHARLES TN WV
2014-09-25 304-963-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 HNTNGTNZN2 WV
2014-09-24 304-306-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F CHRLSTNZN7 WV
2014-09-17 304-223-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F FLAT TOP WV
2014-09-16 304-310-6XXX 6000–6999Assigned LUMOS NETWORKS INC. - VA 7849 CHAPMANVL WV
2014-09-11 304-933-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F BRIDGEPORT WV
2014-09-02 304-202-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F PINEVILLE WV
2014-08-28 304-621-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 ELKINS WV
2014-08-22 304-607-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F BRANDYWINE WV
2014-08-18 304-846-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WV 077G RICHWOOD WV
2014-08-08 304-241-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B MORGANTOWN WV
2014-08-08 304-620-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 MARTINSBG WV
2014-08-08 304-848-8XXX 8000–8999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B BRIDGEPORT WV
2014-08-08 304-940-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B ELKINS WV
2014-07-30 304-371-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F SHINNSTON WV
2014-07-30 304-568-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F TUNNELTON WV
2014-07-29 304-945-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F CHRLSTNZN5 WV
2014-07-24 304-668-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRANKLIN WV
2014-07-22 304-441-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F KINGWOOD WV
2014-07-16 304-900-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F FAYETTEVL WV
2014-07-11 304-674-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PTPLEASANT WV
2014-07-09 304-981-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F MONTGOMERY WV
2014-06-13 304-953-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WV 077G LOGAN WV
2014-06-12 304-223-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F FLAT TOP WV
2014-06-12 304-303-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F RIDGELEY 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.