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
2013-05-17 304-309-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F HINTON WV
2013-05-17 304-504-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F FARMINGTON WV
2013-05-17 304-602-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F RIVESVILLE WV
2013-05-16 304-241-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 MORGANTOWN WV
2013-04-08 304-607-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F BRANDYWINE WV
2013-04-08 304-627-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 CLARKSBURG WV
2013-04-08 304-627-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 CLARKSBURG WV
2013-04-02 304-506-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F GRAFTON WV
2013-03-07 304-918-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CLARKSBURG WV
2013-02-28 304-350-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J MARTINSBG WV
2013-02-28 304-409-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BLUEWELL WV
2013-02-28 304-431-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J PRINCETON WV
2013-02-28 304-467-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MATOAKA WV
2013-02-28 304-500-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BERKELYSPG WV
2013-02-28 304-535-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J HARPESFRRY WV
2013-02-28 304-800-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BLUEFIELD WV
2013-02-28 304-821-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J INWOOD WV
2013-02-28 304-870-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SHEPHEDSTN WV
2013-02-26 304-458-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J LEON WV
2013-02-26 304-486-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J PRICHARD WV
2013-02-26 304-762-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J UNIONRIDGE WV
2013-02-26 304-769-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J CHRLSTNZN6 WV
2013-02-26 304-814-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BUFFALO WV
2013-02-26 304-936-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J WINFIELD WV
2013-02-26 304-948-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J HNTNGTNZN2 WV
2013-02-13 304-960-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 BLUEFIELD WV
2013-02-13 304-981-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WV 077G MONTGOMERY WV
2013-02-05 304-370-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F SALEM WV
2013-02-05 304-404-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F W MILFORD WV
2013-02-05 304-435-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHEAT LAKE WV
2013-02-05 304-470-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F PHILIPPI WV
2013-02-05 304-506-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F GRAFTON WV
2013-02-05 304-584-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F LUMBERPORT WV
2013-02-05 304-804-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F GLENVILLE WV
2013-02-05 304-878-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F BUCKHANNON WV
2013-01-30 304-308-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 BLUEFIELD WV
2013-01-09 304-409-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 BLUEWELL WV
2013-01-09 304-460-6XXX 6000–6999Assigned CSC VOICE, LLC 612K BUCKHANNON WV
2013-01-09 304-512-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 RAVENSWOOD WV
2013-01-09 304-896-6XXX 6000–6999Assigned CSC VOICE, LLC 612K LOGAN WV
2012-12-26 304-759-9XXX 9000–9999Assigned CSC VOICE, LLC 612K CHRLSTNZN6 WV
2012-12-21 304-905-7XXX 7000–7999Assigned CITYNET WEST VIRGINIA, LLC - WV 545B WHELNGZON1 WV
2012-11-13 304-620-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 6394 MARTINSBG WV
2012-11-12 304-409-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BLUEWELL WV
2012-11-12 304-557-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PRINCETON WV
2012-11-12 304-992-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WV 9944 LEWISBURG WV
2012-10-30 304-299-7XXX 7000–7999Assigned ARMSTRONG TELECOMMUNICATIONS, INC. - WV 423C ST MARYS WV
2012-10-25 304-405-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F WEST UNION WV
2012-10-24 304-362-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F BECKLEY WV
2012-10-24 304-362-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WV 080F BECKLEY 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.