NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

7 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 225
ONVOY, LLC - LA 6
NEW CINGULAR WIRELESS PCS, LLC - GA 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
2011-03-14 225-368-1XXX 1000–1999Assigned VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2011-03-14 225-930-1XXX 1000–1999Assigned VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2011-03-11 225-367-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 BATONROUGE LA
2011-03-11 225-367-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 BATONROUGE LA
2011-03-08 225-402-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DUTCH TOWN LA
2011-02-22 225-923-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C BATONROUGE LA
2011-02-22 225-923-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C BATONROUGE LA
2011-02-14 225-361-7XXX 7000–7999Assigned VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2011-02-08 225-452-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C MORGANZA LA
2011-02-04 225-244-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLINTON LA
2011-02-04 225-347-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DENHAM SPG LA
2011-02-04 225-347-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DENHAM SPG LA
2011-02-02 225-450-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 GONZALES LA
2011-01-31 225-371-4XXX 4000–4999Assigned VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2011-01-31 225-384-9XXX 9000–9999Assigned VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2011-01-31 225-394-6XXX 6000–6999Assigned VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2011-01-31 225-394-8XXX 8000–8999Assigned VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2011-01-31 225-444-2XXX 2000–2999Assigned VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2011-01-31 225-444-3XXX 3000–3999Assigned VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2011-01-31 225-444-7XXX 7000–7999Assigned VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2011-01-31 225-444-8XXX 8000–8999Assigned VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2011-01-31 225-444-9XXX 9000–9999Assigned VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2011-01-31 225-448-6XXX 6000–6999Assigned VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2011-01-31 225-448-7XXX 7000–7999Assigned VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2011-01-31 225-448-9XXX 9000–9999Assigned VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2011-01-25 225-289-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 DONALDSNVL LA
2011-01-21 225-313-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DUTCH TOWN LA
2011-01-11 225-347-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DENHAM SPG LA
2010-12-14 225-245-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C STFRNCISVL LA
2010-12-14 225-255-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ST GABRIEL LA
2010-12-14 225-655-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C TUNICA LA
2010-12-14 225-713-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C NEW ROADS LA
2010-12-13 225-623-0XXX 0000–0999Assigned VOICESTREAM GSM I, LLC 150C LUTCHER LA
2010-12-13 225-624-8XXX 8000–8999Assigned VOICESTREAM GSM I, LLC 150C VACHERIE LA
2010-11-16 225-372-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 BATONROUGE LA
2010-11-16 225-372-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 BATONROUGE LA
2010-11-16 225-372-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 BATONROUGE LA
2010-11-01 225-283-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 LIVINGSTON LA
2010-11-01 225-532-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 ALBANY LA
2010-10-20 225-444-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS LLC - LA 7637 BATONROUGE LA
2010-10-18 225-372-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F BATONROUGE LA
2010-10-18 225-372-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F BATONROUGE LA
2010-10-18 225-874-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C NO CORNOR LA
2010-10-12 225-444-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C BATONROUGE LA
2010-10-04 225-347-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DENHAM SPG LA
2010-09-30 225-317-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F BATONROUGE LA
2010-09-30 225-325-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F BATONROUGE LA
2010-09-30 225-332-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F BATONROUGE LA
2010-09-30 225-339-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F BATONROUGE LA
2010-09-30 225-339-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F BATONROUGE LA

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.