NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

22 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 430
ONVOY, LLC - TX 12
NEW CINGULAR WIRELESS PCS, LLC - IL 3
CSC WIRELESS, LLC 3
PAETEC ITEL, LLC 1
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 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
2018-07-03 430-240-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 LONGVIEW TX
2018-07-03 430-243-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F HENDERSON TX
2018-06-20 430-755-3XXX 3000–3999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F LONE OAK TX
2018-06-08 430-226-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 DAINGERFLD TX
2018-05-29 430-888-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F MONTALBA TX
2018-05-24 430-562-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C ATLANTA TX
2018-05-24 430-703-5XXX 5000–5999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F WHITEWRGHT TX
2018-05-15 430-231-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F MILLER GRV TX
2018-05-15 430-252-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SULPHURSPG TX
2018-05-14 430-236-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CORSICANA TX
2018-05-14 430-901-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F OMAHA TX
2018-05-10 430-755-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F LONE OAK TX
2018-04-27 430-203-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F BECKVILLE TX
2018-04-27 430-255-3XXX 3000–3999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F KEMP TX
2018-04-11 430-205-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 TYLER TX
2018-04-09 430-205-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C TYLER TX
2018-03-20 430-242-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 GREENVILLE TX
2018-03-20 430-242-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 GREENVILLE TX
2018-03-20 430-242-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 GREENVILLE TX
2018-03-19 430-201-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LONGVIEW TX
2018-03-19 430-201-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LONGVIEW TX
2018-03-14 430-240-0XXX 0000–0999Assigned VONAGE AMERICA LLC 197D LONGVIEW TX
2018-03-14 430-302-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 MABANK TX
2018-03-12 430-235-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LINDL SWAN TX
2018-02-28 430-237-9XXX 9000–9999Assigned VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW 1163 BECKVILLE TX
2018-02-28 430-238-9XXX 9000–9999Assigned VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 1181 DEPORT TX
2018-02-28 430-562-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 ATLANTA TX
2018-02-14 430-206-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C WOLFE CITY TX
2018-02-08 430-205-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TYLER TX
2018-02-07 430-215-2XXX 2000–2999Assigned NUSO, LLC 551G LONGVIEW TX
2018-01-04 430-205-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 TYLER TX
2017-12-06 430-205-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 TYLER TX
2017-11-21 430-236-8XXX 8000–8999Assigned METROPCS, INC. 5562 CORSICANA TX
2017-11-20 430-206-8XXX 8000–8999Assigned IP HORIZON LLC 515J WOLFE CITY TX
2017-11-20 430-231-0XXX 0000–0999Assigned IP HORIZON LLC 515J MILLER GRV TX
2017-11-20 430-236-0XXX 0000–0999Assigned IP HORIZON LLC 515J CORSICANA TX
2017-11-20 430-252-7XXX 7000–7999Assigned IP HORIZON LLC 515J SULPHURSPG TX
2017-11-20 430-540-0XXX 0000–0999Assigned IP HORIZON LLC 515J MYRTLE SPG TX
2017-11-20 430-703-8XXX 8000–8999Assigned IP HORIZON LLC 515J WHITEWRGHT TX
2017-11-20 430-755-1XXX 1000–1999Assigned IP HORIZON LLC 515J LONE OAK TX
2017-11-20 430-803-8XXX 8000–8999Assigned IP HORIZON LLC 515J JACKSON TX
2017-10-10 430-234-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C HONEYGROVE TX
2017-09-27 430-236-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CORSICANA TX
2017-09-22 430-224-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CLARKSVL TX
2017-09-18 430-252-5XXX 5000–5999Assigned METROPCS, INC. 5562 SULPHURSPG TX
2017-09-05 430-255-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F KEMP TX
2017-08-31 430-205-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 TYLER TX
2017-08-14 430-233-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 VIVIAN TX
2017-08-10 430-252-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SULPHURSPG TX
2017-08-10 430-252-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SULPHURSPG TX

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.