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
2015-05-27 337-594-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C OPELOUSAS LA
2015-05-26 337-735-6XXX 6000–6999Assigned METROPCS, INC. 5562 LAFAYETTE LA
2015-05-21 337-221-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F DE RIDDER LA
2015-05-21 337-221-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F DE RIDDER LA
2015-05-21 337-223-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F GUEYDAN LA
2015-05-21 337-245-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F SWEET LAKE LA
2015-05-21 337-306-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F RAYNE LA
2015-05-21 337-313-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F SULPHUR LA
2015-05-21 337-520-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F CARENCRO LA
2015-05-21 337-704-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F LAFAYETTE LA
2015-05-21 337-735-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F LAFAYETTE LA
2015-05-21 337-761-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F LAFAYETTE LA
2015-05-19 337-324-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F VINTON LA
2015-05-19 337-573-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F YOUNGSVL LA
2015-05-19 337-628-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F WASHINGTON LA
2015-05-18 337-516-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F ABBEVILLE LA
2015-05-18 337-520-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CARENCRO LA
2015-05-14 337-800-2XXX 2000–2999Assigned ONVOY, LLC - LA 749E ABBEVILLE LA
2015-05-14 337-800-3XXX 3000–3999Assigned ONVOY, LLC - LA 749E ABBEVILLE LA
2015-05-14 337-800-4XXX 4000–4999Assigned ONVOY, LLC - LA 749E ABBEVILLE LA
2015-05-12 337-317-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DE QUINCY LA
2015-05-12 337-317-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 DE QUINCY LA
2015-05-12 337-886-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CARENCRO LA
2015-04-23 337-717-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CROWLEY LA
2015-04-23 337-717-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CROWLEY LA
2015-04-23 337-717-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CROWLEY LA
2015-04-17 337-467-7XXX 7000–7999Assigned ONVOY, LLC - LA 749E OPELOUSAS LA
2015-04-17 337-509-3XXX 3000–3999Assigned ONVOY, LLC - LA 749E LEESVILLE LA
2015-04-07 337-210-7XXX 7000–7999Assigned ONVOY, LLC - LA 749E LAFAYETTE LA
2015-04-07 337-628-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C WASHINGTON LA
2015-03-23 337-900-0XXX 0000–0999Assigned ONVOY, LLC - LA 749E SULPHUR LA
2015-03-23 337-900-1XXX 1000–1999Assigned ONVOY, LLC - LA 749E SULPHUR LA
2015-03-23 337-900-9XXX 9000–9999Assigned ONVOY, LLC - LA 749E SULPHUR LA
2015-03-12 337-509-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F LEESVILLE LA
2015-03-12 337-655-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 VL PLATTE LA
2015-03-12 337-655-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 VL PLATTE LA
2015-02-27 337-541-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2015-02-26 337-678-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OPELOUSAS LA
2015-02-26 337-692-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OPELOUSAS LA
2015-02-25 337-800-0XXX 0000–0999Assigned ONVOY, LLC - LA 749E ABBEVILLE LA
2015-02-25 337-800-8XXX 8000–8999Assigned ONVOY, LLC - LA 749E ABBEVILLE LA
2015-02-19 337-441-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 STMARTINVL LA
2015-02-19 337-441-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 STMARTINVL LA
2015-02-11 337-541-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2015-02-11 337-541-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2015-02-06 337-252-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F BROUSSARD LA
2015-02-06 337-275-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F JENNINGS LA
2015-02-06 337-284-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F OPELOUSAS LA
2015-02-06 337-359-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F NEW IBERIA LA
2015-02-06 337-514-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F CROWLEY 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.