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
2011-09-23 225-310-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C JACKSON LA
2011-09-23 225-443-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ROUGON LA
2011-09-23 225-716-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C WH CASTLE LA
2011-09-19 225-250-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F BATONROUGE LA
2011-09-14 225-629-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F WILSON LA
2011-09-08 225-250-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C BATONROUGE LA
2011-08-02 225-245-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F STFRNCISVL LA
2011-08-02 225-447-1XXX 1000–1999Assigned VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2011-08-02 225-447-7XXX 7000–7999Assigned VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2011-08-01 225-349-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
2011-08-01 225-349-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
2011-08-01 225-421-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
2011-08-01 225-421-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
2011-07-28 225-250-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
2011-07-28 225-250-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
2011-07-28 225-250-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
2011-07-28 225-250-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BATONROUGE LA
2011-07-28 225-255-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F ST GABRIEL LA
2011-07-28 225-283-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F LIVINGSTON LA
2011-07-28 225-306-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F ZACHARY LA
2011-07-28 225-443-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F ROUGON LA
2011-07-20 225-385-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 PLAQUEMINE LA
2011-07-08 225-443-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F ROUGON LA
2011-07-07 225-310-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C JACKSON LA
2011-07-05 225-227-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2011-07-05 225-255-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F ST GABRIEL LA
2011-07-05 225-283-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F LIVINGSTON LA
2011-07-05 225-286-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F ZACHARY LA
2011-06-21 225-249-8XXX 8000–8999Assigned VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2011-06-21 225-249-9XXX 9000–9999Assigned VOICESTREAM GSM I, LLC 150C BATONROUGE LA
2011-06-16 225-347-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DENHAM SPG LA
2011-06-16 225-402-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DUTCH TOWN LA
2011-06-16 225-402-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DUTCH TOWN LA
2011-06-09 225-694-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F MORGANZA LA
2011-05-31 225-347-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F DENHAM SPG LA
2011-05-31 225-500-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F ALBANY LA
2011-05-24 225-417-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LUTCHER LA
2011-05-10 225-388-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2011-05-02 225-242-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F BATONROUGE LA
2011-05-02 225-317-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F BATONROUGE LA
2011-05-02 225-334-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F BATONROUGE LA
2011-05-02 225-778-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F BATONROUGE LA
2011-05-02 225-819-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F BATONROUGE LA
2011-05-02 225-935-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F BATONROUGE LA
2011-04-20 225-331-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF LOUISIANA, LLC - LA 7488 CONVENT LA
2011-04-19 225-930-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BATONROUGE LA
2011-04-14 225-238-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F PLAQUEMINE LA
2011-04-13 225-399-1XXX 1000–1999Assigned RESERVE LONG DIST CO DBA RESERVE TELECOMM - LA 3610 CONVENT LA
2011-04-06 225-257-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F DONALDSNVL LA
2011-04-06 225-395-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F SPRINGFLD 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.