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
2014-08-07 337-550-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EUNICE LA
2014-08-07 337-551-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NEW IBERIA LA
2014-08-07 337-565-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CARENCRO LA
2014-08-07 337-573-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J YOUNGSVL LA
2014-08-07 337-628-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WASHINGTON LA
2014-08-07 337-777-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PORT BARRE LA
2014-08-07 337-918-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ERATH LA
2014-08-07 337-935-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DUSON LA
2014-08-06 337-414-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BREAUX BDG LA
2014-08-06 337-445-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BROUSSARD LA
2014-08-06 337-449-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ARNAUDVL LA
2014-08-06 337-516-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ABBEVILLE LA
2014-08-06 337-940-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 BALDWIN LA
2014-08-01 337-441-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F STMARTINVL LA
2014-07-31 337-221-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F DE RIDDER LA
2014-07-31 337-656-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 LK CHARLES LA
2014-07-28 337-417-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA 8764 LAFAYETTE LA
2014-07-24 337-443-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 LAFAYETTE LA
2014-07-07 337-484-1XXX 1000–1999Assigned LAFAYETTE CITY-PARISH CONSOLIDATED GOVERNMENT - LA 9002 LAFAYETTE LA
2014-07-01 337-336-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J VL PLATTE LA
2014-07-01 337-387-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WELSH LA
2014-07-01 337-602-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LK CHARLES LA
2014-06-20 337-223-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 GUEYDAN LA
2014-06-20 337-317-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 DE QUINCY LA
2014-06-20 337-445-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BROUSSARD LA
2014-06-20 337-548-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 LAKEARTHUR LA
2014-06-16 337-240-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 LK CHARLES LA
2014-06-12 337-541-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAFAYETTE LA
2014-06-12 337-991-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2014-06-10 337-246-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F JENNINGS LA
2014-05-29 337-909-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BREAUX BDG LA
2014-05-20 337-516-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ABBEVILLE LA
2014-05-20 337-516-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ABBEVILLE LA
2014-05-19 337-284-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F OPELOUSAS LA
2014-05-15 337-385-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ABBEVILLE LA
2014-05-15 337-522-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ABBEVILLE LA
2014-05-09 337-373-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 NEW IBERIA LA
2014-05-09 337-806-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2014-05-09 337-998-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 KINDER LA
2014-05-08 337-451-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 YOUNGSVL LA
2014-05-08 337-451-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 YOUNGSVL LA
2014-05-08 337-565-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CARENCRO LA
2014-05-08 337-565-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CARENCRO LA
2014-04-11 337-414-8XXX 8000–8999Assigned VOICESTREAM GSM I, LLC 150C BREAUX BDG LA
2014-04-11 337-414-9XXX 9000–9999Assigned VOICESTREAM GSM I, LLC 150C BREAUX BDG LA
2014-04-11 337-806-0XXX 0000–0999Assigned VOICESTREAM GSM I, LLC 150C LAFAYETTE LA
2014-04-11 337-806-6XXX 6000–6999Assigned VOICESTREAM GSM I, LLC 150C LAFAYETTE LA
2014-04-03 337-806-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 LAFAYETTE LA
2014-04-01 337-246-8XXX 8000–8999Assigned LOUISIANA COMPETITIVE TELECOMMUNICATIONS, INC. 4930 JENNINGS LA
2014-04-01 337-284-1XXX 1000–1999Assigned LOUISIANA COMPETITIVE TELECOMMUNICATIONS, INC. 4930 OPELOUSAS 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.