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
2016-02-23 337-226-0XXX 0000–0999Assigned ONVOY, LLC - LA 749E DE RIDDER LA
2016-02-23 337-226-1XXX 1000–1999Assigned ONVOY, LLC - LA 749E DE RIDDER LA
2016-02-23 337-607-0XXX 0000–0999Assigned ONVOY, LLC - LA 749E SULPHUR LA
2016-02-23 337-607-1XXX 1000–1999Assigned ONVOY, LLC - LA 749E SULPHUR LA
2016-02-23 337-609-0XXX 0000–0999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAFAYETTE LA
2016-02-23 337-609-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAFAYETTE LA
2016-02-23 337-609-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAFAYETTE LA
2016-02-23 337-609-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAFAYETTE LA
2016-02-23 337-609-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAFAYETTE LA
2016-02-23 337-609-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAFAYETTE LA
2016-02-23 337-609-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAFAYETTE LA
2016-02-23 337-609-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAFAYETTE LA
2016-02-23 337-609-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAFAYETTE LA
2016-02-23 337-609-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAFAYETTE LA
2016-02-18 337-347-3XXX 3000–3999Assigned METROPCS, INC. 5562 LAFAYETTE LA
2016-02-18 337-347-4XXX 4000–4999Assigned METROPCS, INC. 5562 LAFAYETTE LA
2016-02-18 337-508-8XXX 8000–8999Assigned METROPCS, INC. 5562 LK CHARLES LA
2016-02-18 337-602-0XXX 0000–0999Assigned METROPCS, INC. 5562 LK CHARLES LA
2016-02-18 337-983-6XXX 6000–6999Assigned METROPCS, INC. 5562 LAFAYETTE LA
2016-02-17 337-374-2XXX 2000–2999Assigned ONVOY, LLC - LA 749E NEW IBERIA LA
2016-02-17 337-374-8XXX 8000–8999Assigned ONVOY, LLC - LA 749E NEW IBERIA LA
2016-02-17 337-717-1XXX 1000–1999Assigned ONVOY, LLC - LA 749E CROWLEY LA
2016-02-17 337-717-2XXX 2000–2999Assigned ONVOY, LLC - LA 749E CROWLEY LA
2016-02-03 337-508-0XXX 0000–0999Assigned ONVOY, LLC - LA 749E LK CHARLES LA
2016-02-03 337-508-1XXX 1000–1999Assigned ONVOY, LLC - LA 749E LK CHARLES LA
2016-01-25 337-607-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SULPHUR LA
2016-01-25 337-607-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SULPHUR LA
2016-01-19 337-227-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C CHURCH PT LA
2016-01-19 337-607-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 SULPHUR LA
2016-01-15 337-769-3XXX 3000–3999Assigned LAFAYETTE CITY-PARISH CONSOLIDATED GOVERNMENT - LA 9002 LAFAYETTE LA
2016-01-08 337-600-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ABBEVILLE LA
2016-01-08 337-600-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ABBEVILLE LA
2016-01-08 337-600-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ABBEVILLE LA
2015-12-30 337-284-4XXX 4000–4999Assigned ONVOY, LLC - LA 749E OPELOUSAS LA
2015-12-30 337-600-1XXX 1000–1999Assigned ONVOY, LLC - LA 749E ABBEVILLE LA
2015-12-30 337-888-9XXX 9000–9999Assigned ONVOY, LLC - LA 749E SULPHUR LA
2015-12-28 337-509-1XXX 1000–1999Assigned ONVOY, LLC - LA 749E LEESVILLE LA
2015-12-09 337-408-1XXX 1000–1999Assigned ONVOY, LLC - LA 749E LAFAYETTE LA
2015-12-09 337-417-9XXX 9000–9999Assigned ONVOY, LLC - LA 749E LAFAYETTE LA
2015-11-24 337-242-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 STMARTINVL LA
2015-11-19 337-342-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 STMARTINVL LA
2015-11-09 337-707-6XXX 6000–6999Assigned METROPCS, INC. 5562 LK CHARLES LA
2015-10-16 337-329-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F JENNINGS LA
2015-10-14 337-359-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F NEW IBERIA LA
2015-10-14 337-603-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F EUNICE LA
2015-10-08 337-571-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2015-10-08 337-571-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2015-10-08 337-571-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2015-10-08 337-571-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2015-10-08 337-571-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE 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.