NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

9 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 903
ONVOY, LLC - TX 6
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 3
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
2014-04-30 903-338-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 KOON KREEK TX
2014-04-30 903-928-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 TENESSCLNY TX
2014-04-25 903-686-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LONGVIEW TX
2014-04-24 903-419-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J POTTSBORO TX
2014-04-24 903-627-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J VANALSTYNE TX
2014-04-24 903-651-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WHITESBORO TX
2014-04-23 903-200-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COLLINSVL TX
2014-04-23 903-228-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GUNTER TX
2014-04-23 903-304-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BONHAM TX
2014-04-23 903-414-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HOWE TX
2014-04-23 903-415-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DENISON TX
2014-04-23 903-476-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DORCHESTER TX
2014-04-23 903-523-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GORDONVL TX
2014-04-23 903-587-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LEONARD TX
2014-04-23 903-961-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ECTOR TX
2014-04-22 903-251-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MURCHISON TX
2014-04-22 903-273-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FRANKSTON TX
2014-04-22 903-282-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J KERENS TX
2014-04-22 903-400-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 NECHES TX
2014-04-22 903-425-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 EUSTACE TX
2014-04-22 903-432-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TLSVNPONTS TX
2014-04-22 903-451-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 PAYNE SPG TX
2014-04-22 903-480-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PALESTINE TX
2014-04-22 903-499-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CAYUGA TX
2014-04-22 903-515-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CHANDLER TX
2014-04-22 903-538-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TUCKER TX
2014-04-22 903-778-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TRINIDAD TX
2014-04-22 903-910-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MABANK TX
2014-04-22 903-969-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TROUP TX
2014-04-22 903-978-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LKPALSTINE TX
2014-04-22 903-999-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 MARTINS ML TX
2014-04-21 903-329-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F ROANE TX
2014-04-21 903-412-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SHIRLEY TX
2014-04-21 903-420-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F EMHOUSE TX
2014-04-21 903-437-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BROWNSBORO TX
2014-04-21 903-460-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WILLSPOINT TX
2014-04-21 903-648-0XXX 0000–0999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WEAVER TX
2014-04-21 903-664-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TELEPHONE TX
2014-04-21 903-919-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SULPHURSPG TX
2014-04-21 903-929-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WINDOM TX
2014-04-21 903-954-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BULLARD TX
2014-04-18 903-225-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MERIT TX
2014-04-18 903-226-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 QUINLAN TX
2014-04-18 903-355-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GREENVILLE TX
2014-04-18 903-385-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EDGEWOOD TX
2014-04-18 903-515-3XXX 3000–3999Assigned CSC VOICE, LLC 612K CHANDLER TX
2014-04-18 903-598-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J POINT TX
2014-04-18 903-600-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RICE TX
2014-04-18 903-609-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PARIS TX
2014-04-18 903-829-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OAKLAND TX

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.