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
2023-06-28 337-586-3XXX 3000–3999Assigned BOOST SUBSCRIBERCO L.L.C. 490J WEEKS IS LA
2023-06-28 337-701-2XXX 2000–2999Assigned BOOST SUBSCRIBERCO L.L.C. 490J EUNICE LA
2023-06-27 337-218-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H JENNINGS LA
2023-06-27 337-229-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H LOREAUVL LA
2023-06-27 337-286-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H LEESVILLE LA
2023-06-27 337-307-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H KROTZ SPG LA
2023-06-27 337-343-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H DE RIDDER LA
2023-06-27 337-346-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H FRANKLIN LA
2023-06-27 337-361-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H ERATH LA
2023-06-27 337-379-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H IOWA LA
2023-06-27 337-386-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H DE QUINCY LA
2023-06-27 337-403-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H HAYES LA
2023-06-27 337-429-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H LK CHARLES LA
2023-06-27 337-434-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H HENDERSON LA
2023-06-27 337-448-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MELVILLE LA
2023-06-27 337-449-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H ARNAUDVL LA
2023-06-27 337-454-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H CECELIA LA
2023-06-27 337-469-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H CARENCRO LA
2023-06-27 337-472-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H MAMOU LA
2023-06-27 337-536-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H GUEYDAN LA
2023-06-27 337-543-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H LAWTELL LA
2023-06-27 337-545-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H CENTERVL LA
2023-06-27 337-556-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H CHURCH PT LA
2023-06-27 337-595-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H ABBEVILLE LA
2023-06-27 337-612-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H IOTA LA
2023-06-27 337-614-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H CANKTON LA
2023-06-27 337-617-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H MERRYVILLE LA
2023-06-27 337-627-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H BREAUX BDG LA
2023-06-27 337-701-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H EUNICE LA
2023-06-27 337-702-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H LAKEARTHUR LA
2023-06-27 337-742-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H BALDWIN LA
2023-06-27 337-767-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H CROWLEY LA
2023-06-27 337-773-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H BROUSSARD LA
2023-06-27 337-803-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H DUSON LA
2023-06-27 337-804-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA LA - LLC 653C LAFAYETTE LA
2023-06-27 337-846-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H JEANERETTE LA
2023-06-27 337-879-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H LEONVILLE LA
2023-06-26 337-220-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K TURKEY CRK LA
2023-06-26 337-727-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K PINEPRAIRI LA
2023-06-09 337-832-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 STMARTINVL LA
2023-05-31 337-361-4XXX 4000–4999Assigned BOOST SUBSCRIBERCO L.L.C. 490J ERATH LA
2023-05-31 337-447-1XXX 1000–1999Assigned BOOST SUBSCRIBERCO L.L.C. 490J OPELOUSAS LA
2023-05-31 337-490-3XXX 3000–3999Assigned BOOST SUBSCRIBERCO L.L.C. 490J DELCAMBRE LA
2023-05-31 337-637-1XXX 1000–1999Assigned BOOST SUBSCRIBERCO L.L.C. 490J RAYNE LA
2023-05-31 337-645-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J JOHNSOBYOU LA
2023-05-31 337-832-1XXX 1000–1999Assigned BOOST SUBSCRIBERCO L.L.C. 490J STMARTINVL LA
2023-05-31 337-848-5XXX 5000–5999Assigned BOOST SUBSCRIBERCO L.L.C. 490J SUNSET LA
2023-05-31 337-904-1XXX 1000–1999Assigned BOOST SUBSCRIBERCO L.L.C. 490J LOREAUVL LA
2023-05-23 337-213-2XXX 2000–2999Assigned TERRA NOVA TELECOM INC. 145J LEESVILLE LA
2023-05-09 337-796-4XXX 4000–4999Assigned BOOST SUBSCRIBERCO L.L.C. 490J HACKBERRY 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.