NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

21 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 337
ONVOY, LLC - LA 17
NEW CINGULAR WIRELESS PCS, LLC - GA 2
CSC WIRELESS, LLC 2
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
2015-02-02 337-602-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F LK CHARLES LA
2015-02-02 337-602-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F LK CHARLES LA
2015-01-30 337-678-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K OPELOUSAS LA
2015-01-23 337-541-5XXX 5000–5999Assigned ONVOY, LLC - LA 749E LAFAYETTE LA
2015-01-23 337-603-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 EUNICE LA
2015-01-23 337-603-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 EUNICE LA
2015-01-22 337-753-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 ROANOKE LA
2015-01-20 337-301-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 ELTON LA
2015-01-20 337-514-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CROWLEY LA
2015-01-20 337-930-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 WELSH LA
2015-01-20 337-977-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 OBERLIN LA
2015-01-20 337-998-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 KINDER LA
2015-01-19 337-252-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C BROUSSARD LA
2015-01-12 337-414-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C BREAUX BDG LA
2015-01-10 337-516-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C ABBEVILLE LA
2014-12-29 337-516-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 ABBEVILLE LA
2014-12-16 337-447-5XXX 5000–5999Assigned VOICESTREAM GSM I, LLC 150C OPELOUSAS LA
2014-12-12 337-516-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F ABBEVILLE LA
2014-12-08 337-210-6XXX 6000–6999Assigned METROPCS, INC. 5562 LAFAYETTE LA
2014-12-04 337-516-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ABBEVILLE LA
2014-12-04 337-516-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ABBEVILLE LA
2014-12-04 337-516-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ABBEVILLE LA
2014-12-04 337-541-3XXX 3000–3999Assigned METROPCS, INC. 5562 LAFAYETTE LA
2014-12-04 337-541-4XXX 4000–4999Assigned METROPCS, INC. 5562 LAFAYETTE LA
2014-12-01 337-451-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J YOUNGSVL LA
2014-12-01 337-940-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C BALDWIN LA
2014-11-14 337-210-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J LAFAYETTE LA
2014-11-13 337-226-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DE RIDDER LA
2014-11-13 337-226-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DE RIDDER LA
2014-11-06 337-888-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SULPHUR LA
2014-11-06 337-888-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SULPHUR LA
2014-11-05 337-508-9XXX 9000–9999Assigned VOICESTREAM GSM I, LLC 150C LK CHARLES LA
2014-11-05 337-717-0XXX 0000–0999Assigned VOICESTREAM GSM I, LLC 150C CROWLEY LA
2014-11-05 337-909-4XXX 4000–4999Assigned VOICESTREAM GSM I, LLC 150C BREAUX BDG LA
2014-11-05 337-909-5XXX 5000–5999Assigned VOICESTREAM GSM I, LLC 150C BREAUX BDG LA
2014-10-09 337-509-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEESVILLE LA
2014-10-09 337-509-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEESVILLE LA
2014-10-09 337-509-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEESVILLE LA
2014-10-03 337-492-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEW IBERIA LA
2014-10-03 337-551-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEW IBERIA LA
2014-10-03 337-551-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEW IBERIA LA
2014-10-02 337-508-2XXX 2000–2999Assigned CEBRIDGE TELECOM LA, LLC D/B/A SUDDENLINK COMM LA 260H LK CHARLES LA
2014-09-29 337-965-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CARLYSS LA
2014-09-29 337-965-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CARLYSS LA
2014-09-19 337-886-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F CARENCRO LA
2014-09-18 337-240-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 LK CHARLES LA
2014-09-10 337-668-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 CANKTON LA
2014-09-10 337-888-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F SULPHUR LA
2014-08-22 337-587-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 THORNWELL LA
2014-08-22 337-588-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 LACASSINE 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.