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
2014-06-12 304-355-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F PIEDMONT WV
2014-06-12 304-403-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F TERRA ALTA WV
2014-06-12 304-446-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F ELK GARDEN WV
2014-05-29 304-960-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 BLUEFIELD WV
2014-05-22 304-202-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F PINEVILLE WV
2014-05-22 304-220-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F CHRLSTNZN4 WV
2014-05-22 304-306-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F CHRLSTNZN7 WV
2014-05-22 304-309-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F HINTON WV
2014-05-22 304-314-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F PHILIPPI WV
2014-05-22 304-362-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F BECKLEY WV
2014-05-22 304-460-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F BUCKHANNON WV
2014-05-22 304-635-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F ELKINS WV
2014-05-22 304-715-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F CLARKSBURG WV
2014-05-22 304-715-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F CLARKSBURG WV
2014-05-22 304-745-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F W MILFORD WV
2014-05-22 304-802-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F FRANKLIN WV
2014-05-22 304-804-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F GLENVILLE WV
2014-05-22 304-805-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F JANE LEW WV
2014-05-22 304-853-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F BURNSVILLE WV
2014-05-22 304-901-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J MARTINSBG WV
2014-05-16 304-506-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F GRAFTON WV
2014-05-06 304-446-8XXX 8000–8999Assigned SHENTEL COMMUNICATIONS, LLC. - WV 489F ELK GARDEN WV
2014-04-29 304-802-3XXX 3000–3999Assigned METROPCS, INC. 5562 FRANKLIN WV
2014-04-10 304-606-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F BELINGTON WV
2014-04-09 304-241-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 MORGANTOWN WV
2014-04-09 304-907-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 WHELNGZON1 WV
2014-04-01 304-350-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 MARTINSBG WV
2014-03-28 304-816-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAIRMONT WV
2014-03-24 304-398-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEWMRTNSVL WV
2014-03-19 304-621-8XXX 8000–8999Assigned UNITED STATES CELLULAR - WV 6284 ELKINS WV
2014-03-17 304-627-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 CLARKSBURG WV
2014-03-14 304-508-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F MANNINGTON WV
2014-03-14 304-800-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BLUEFIELD WV
2014-03-14 304-800-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BLUEFIELD WV
2014-03-13 304-239-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LOGAN WV
2014-03-05 304-918-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CLARKSBURG WV
2014-03-05 304-931-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 CLARKSBURG WV
2014-02-27 304-322-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MORGANTOWN WV
2014-02-27 304-355-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J PIEDMONT WV
2014-02-27 304-790-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J KEYSER WV
2014-02-26 304-359-3XXX 3000–3999Assigned UNITED STATES CELLULAR - WV 6284 ROMNEY WV
2014-02-26 304-441-4XXX 4000–4999Assigned UNITED STATES CELLULAR - WV 6284 KINGWOOD WV
2014-02-20 304-254-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F BECKLEY WV
2014-02-20 304-362-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F BECKLEY WV
2014-02-20 304-362-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F BECKLEY WV
2014-02-14 304-885-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WV 077G CHARLES TN WV
2014-02-14 304-905-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J WHELNGZON1 WV
2014-02-03 304-741-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CHRLSTNZN1 WV
2014-01-29 304-439-2XXX 2000–2999Assigned CSC VOICE, LLC 612K BUCKHANNON WV
2014-01-29 304-439-3XXX 3000–3999Assigned CSC VOICE, LLC 612K BUCKHANNON 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.