NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 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, all time — NPA 903
CENTURYLINK COMMUNICATIONS, LLC 60
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
2015-12-02 903-367-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LADONIA TX
2015-09-08 903-866-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PICKTON TX
2015-08-26 903-672-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J VIVIAN TX
2014-12-15 903-865-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MYRTLE SPG TX
2014-12-12 903-290-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TOM BEAN TX
2014-11-20 903-545-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OAKWOOD TX
2014-11-20 903-907-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BUFFALO TX
2014-11-20 903-915-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FAIRFIELD TX
2014-11-12 903-582-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BRASHEAR TX
2014-05-16 903-420-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EMHOUSE TX
2014-05-16 903-914-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CASH 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
2014-04-22 903-432-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TLSVNPONTS TX
2014-04-22 903-480-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PALESTINE 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
2014-04-21 903-412-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SHIRLEY 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
2014-04-18 903-355-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GREENVILLE TX
2014-04-18 903-385-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EDGEWOOD TX
2014-04-18 903-598-1XXX 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
2014-04-18 903-913-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GRANDSALIN TX
2014-04-17 903-308-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EMORY TX
2014-04-15 903-366-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COMMERCE 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.