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
2019-05-21 337-273-0XXX 0000–0999Assigned ONVOY, LLC - LA 749E LAFAYETTE LA
2019-05-21 337-294-0XXX 0000–0999Assigned ONVOY, LLC - LA 749E LAFAYETTE LA
2019-05-21 337-294-8XXX 8000–8999Assigned ONVOY, LLC - LA 749E LAFAYETTE LA
2019-05-21 337-492-0XXX 0000–0999Assigned ONVOY, LLC - LA 749E NEW IBERIA LA
2019-05-21 337-877-7XXX 7000–7999Assigned FRACTEL, LLC 965H VINTON LA
2019-05-09 337-324-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F VINTON LA
2019-05-07 337-485-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F LK CHARLES LA
2019-05-07 337-488-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - LA 153F LK CHARLES LA
2019-04-17 337-243-6XXX 6000–6999Assigned ONVOY, LLC - LA 749E CENTERVL LA
2019-04-15 337-549-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LK CHARLES LA
2019-03-29 337-549-2XXX 2000–2999Assigned CSC WIRELESS, LLC 425J LK CHARLES LA
2019-03-25 337-485-4XXX 4000–4999Assigned ONVOY, LLC - LA 749E LK CHARLES LA
2019-03-25 337-485-5XXX 5000–5999Assigned ONVOY, LLC - LA 749E LK CHARLES LA
2019-03-25 337-485-6XXX 6000–6999Assigned ONVOY, LLC - LA 749E LK CHARLES LA
2019-03-25 337-570-1XXX 1000–1999Assigned ONVOY, LLC - LA 749E LK CHARLES LA
2019-03-25 337-570-2XXX 2000–2999Assigned ONVOY, LLC - LA 749E LK CHARLES LA
2019-03-06 337-998-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 KINDER LA
2019-02-13 337-361-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ERATH LA
2019-02-11 337-510-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J SUNSET LA
2019-01-28 337-469-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - LA 3232 CARENCRO LA
2019-01-14 337-216-5XXX 5000–5999Assigned METROPCS, INC. 5562 LAFAYETTE LA
2019-01-07 337-991-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE LA
2018-12-12 337-509-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LEESVILLE LA
2018-12-07 337-245-8XXX 8000–8999Assigned ONVOY, LLC - LA 749E SWEET LAKE LA
2018-12-07 337-284-9XXX 9000–9999Assigned ONVOY, LLC - LA 749E OPELOUSAS LA
2018-12-07 337-324-8XXX 8000–8999Assigned ONVOY, LLC - LA 749E VINTON LA
2018-12-07 337-324-9XXX 9000–9999Assigned ONVOY, LLC - LA 749E VINTON LA
2018-12-07 337-357-9XXX 9000–9999Assigned ONVOY, LLC - LA 749E WEEKS IS LA
2018-12-07 337-372-6XXX 6000–6999Assigned ONVOY, LLC - LA 749E MERRYVILLE LA
2018-12-07 337-372-8XXX 8000–8999Assigned ONVOY, LLC - LA 749E MERRYVILLE LA
2018-12-07 337-373-8XXX 8000–8999Assigned ONVOY, LLC - LA 749E NEW IBERIA LA
2018-12-07 337-373-9XXX 9000–9999Assigned ONVOY, LLC - LA 749E NEW IBERIA LA
2018-12-07 337-415-1XXX 1000–1999Assigned ONVOY, LLC - LA 749E SWEET LAKE LA
2018-12-07 337-444-1XXX 1000–1999Assigned ONVOY, LLC - LA 749E PARKS LA
2018-12-07 337-444-9XXX 9000–9999Assigned ONVOY, LLC - LA 749E PARKS LA
2018-12-07 337-467-8XXX 8000–8999Assigned ONVOY, LLC - LA 749E OPELOUSAS LA
2018-12-06 337-202-8XXX 8000–8999Assigned ONVOY, LLC - LA 749E DE RIDDER LA
2018-12-06 337-226-3XXX 3000–3999Assigned ONVOY, LLC - LA 749E DE RIDDER LA
2018-12-06 337-243-8XXX 8000–8999Assigned ONVOY, LLC - LA 749E CENTERVL LA
2018-12-06 337-243-9XXX 9000–9999Assigned ONVOY, LLC - LA 749E CENTERVL LA
2018-12-06 337-282-1XXX 1000–1999Assigned ONVOY, LLC - LA 749E GUEYDAN LA
2018-12-06 337-282-8XXX 8000–8999Assigned ONVOY, LLC - LA 749E GUEYDAN LA
2018-12-06 337-307-8XXX 8000–8999Assigned ONVOY, LLC - LA 749E KROTZ SPG LA
2018-12-06 337-307-9XXX 9000–9999Assigned ONVOY, LLC - LA 749E KROTZ SPG LA
2018-12-06 337-329-9XXX 9000–9999Assigned ONVOY, LLC - LA 749E JENNINGS LA
2018-12-06 337-388-9XXX 9000–9999Assigned ONVOY, LLC - LA 749E JENNINGS LA
2018-12-06 337-420-8XXX 8000–8999Assigned ONVOY, LLC - LA 749E BALDWIN LA
2018-12-06 337-420-9XXX 9000–9999Assigned ONVOY, LLC - LA 749E BALDWIN LA
2018-12-06 337-999-0XXX 0000–0999Assigned ONVOY, LLC - LA 749E BROUSSARD LA
2018-12-06 337-999-1XXX 1000–1999Assigned ONVOY, LLC - LA 749E BROUSSARD 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.