NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

21 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, 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
2007-04-20 337-321-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEW IBERIA LA
2007-04-20 337-772-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ABBEVILLE LA
2007-04-10 337-442-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BREAUX BDG LA
2007-04-09 337-292-7XXX 7000–7999Assigned VOICESTREAM GSM I, LLC 150C LK CHARLES LA
2007-03-19 337-408-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J LAFAYETTE LA
2007-03-02 337-466-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 EUNICE LA
2007-03-02 337-718-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEESVILLE LA
2007-02-23 337-422-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J ABBEVILLE LA
2007-02-21 337-459-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 VL PLATTE LA
2007-02-21 337-579-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JEANERETTE LA
2007-02-20 337-313-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 SULPHUR LA
2007-02-16 337-456-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J LAFAYETTE LA
2007-02-09 337-401-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DE RIDDER LA
2007-02-09 337-780-4XXX 4000–4999Assigned VOICESTREAM GSM I, LLC 150C LAFAYETTE LA
2007-02-09 337-780-5XXX 5000–5999Assigned VOICESTREAM GSM I, LLC 150C LAFAYETTE LA
2007-02-09 337-780-6XXX 6000–6999Assigned VOICESTREAM GSM I, LLC 150C LAFAYETTE LA
2007-02-09 337-940-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BALDWIN LA
2007-02-05 337-381-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 OPELOUSAS LA
2007-02-02 337-552-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BROUSSARD LA
2007-01-24 337-308-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OPELOUSAS LA
2007-01-24 337-718-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEESVILLE LA
2007-01-04 337-404-3XXX 3000–3999Assigned CEBRIDGE TELECOM LA, LLC D/B/A SUDDENLINK COMM LA 260H LEESVILLE LA
2006-12-29 337-780-7XXX 7000–7999Assigned VOICESTREAM GSM I, LLC 150C LAFAYETTE LA
2006-12-29 337-780-8XXX 8000–8999Assigned VOICESTREAM GSM I, LLC 150C LAFAYETTE LA
2006-12-28 337-857-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J YOUNGSVL LA
2006-12-22 337-202-1XXX 1000–1999Assigned CEBRIDGE TELECOM LA, LLC D/B/A SUDDENLINK COMM LA 260H DE RIDDER LA
2006-12-22 337-287-4XXX 4000–4999Assigned CEBRIDGE TELECOM LA, LLC D/B/A SUDDENLINK COMM LA 260H SULPHUR LA
2006-12-20 337-564-4XXX 4000–4999Assigned CEBRIDGE TELECOM LA, LLC D/B/A SUDDENLINK COMM LA 260H LK CHARLES LA
2006-12-20 337-564-5XXX 5000–5999Assigned CEBRIDGE TELECOM LA, LLC D/B/A SUDDENLINK COMM LA 260H LK CHARLES LA
2006-12-11 337-563-8XXX 8000–8999Assigned METROPCS, INC. 5562 CARLYSS LA
2006-12-06 337-342-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 STMARTINVL LA
2006-11-15 337-606-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 NEW IBERIA LA
2006-11-15 337-656-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 LK CHARLES LA
2006-11-15 337-718-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEESVILLE LA
2006-11-02 337-401-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DE RIDDER LA
2006-11-01 337-772-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ABBEVILLE LA
2006-10-25 337-628-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WASHINGTON LA
2006-10-25 337-841-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LAWTELL LA
2006-10-17 337-466-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 EUNICE LA
2006-10-13 337-246-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K JENNINGS LA
2006-10-13 337-466-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K EUNICE LA
2006-10-11 337-718-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEESVILLE LA
2006-10-06 337-678-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K OPELOUSAS LA
2006-09-25 337-565-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J CARENCRO LA
2006-09-06 337-246-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 JENNINGS LA
2006-08-17 337-401-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 DE RIDDER LA
2006-08-16 337-376-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J NEW IBERIA LA
2006-06-21 337-459-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 VL PLATTE LA
2006-06-21 337-459-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 VL PLATTE LA
2006-06-20 337-378-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEESVILLE LA

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.