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
2023-08-07 337-492-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEW IBERIA LA
2023-07-20 337-575-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 VINTON LA
2023-07-18 337-259-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H LAFAYETTE LA
2023-07-18 337-259-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H LAFAYETTE LA
2023-07-18 337-259-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H LAFAYETTE LA
2023-07-18 337-259-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H LAFAYETTE LA
2023-07-18 337-259-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H LAFAYETTE LA
2023-07-13 337-469-4XXX 4000–4999Assigned ONVOY, LLC - LA 749E CARENCRO LA
2023-07-13 337-469-5XXX 5000–5999Assigned ONVOY, LLC - LA 749E CARENCRO LA
2023-07-13 337-469-6XXX 6000–6999Assigned ONVOY, LLC - LA 749E CARENCRO LA
2023-07-13 337-469-7XXX 7000–7999Assigned ONVOY, LLC - LA 749E CARENCRO LA
2023-07-13 337-547-6XXX 6000–6999Assigned ONVOY, LLC - LA 749E NEW IBERIA LA
2023-07-13 337-547-7XXX 7000–7999Assigned ONVOY, LLC - LA 749E NEW IBERIA LA
2023-07-13 337-547-8XXX 8000–8999Assigned ONVOY, LLC - LA 749E NEW IBERIA LA
2023-07-13 337-547-9XXX 9000–9999Assigned ONVOY, LLC - LA 749E NEW IBERIA LA
2023-07-13 337-574-1XXX 1000–1999Assigned ONVOY, LLC - LA 749E DE RIDDER LA
2023-07-13 337-574-2XXX 2000–2999Assigned ONVOY, LLC - LA 749E DE RIDDER LA
2023-07-13 337-574-3XXX 3000–3999Assigned ONVOY, LLC - LA 749E DE RIDDER LA
2023-07-13 337-574-4XXX 4000–4999Assigned ONVOY, LLC - LA 749E DE RIDDER LA
2023-07-13 337-574-5XXX 5000–5999Assigned ONVOY, LLC - LA 749E DE RIDDER LA
2023-07-13 337-674-2XXX 2000–2999Assigned ONVOY, LLC - LA 749E SULPHUR LA
2023-07-13 337-674-3XXX 3000–3999Assigned ONVOY, LLC - LA 749E SULPHUR LA
2023-07-13 337-674-4XXX 4000–4999Assigned ONVOY, LLC - LA 749E SULPHUR LA
2023-07-13 337-674-5XXX 5000–5999Assigned ONVOY, LLC - LA 749E SULPHUR LA
2023-07-13 337-674-6XXX 6000–6999Assigned ONVOY, LLC - LA 749E SULPHUR LA
2023-07-13 337-767-2XXX 2000–2999Assigned ONVOY, LLC - LA 749E CROWLEY LA
2023-07-13 337-767-3XXX 3000–3999Assigned ONVOY, LLC - LA 749E CROWLEY LA
2023-07-13 337-767-4XXX 4000–4999Assigned ONVOY, LLC - LA 749E CROWLEY LA
2023-07-13 337-767-5XXX 5000–5999Assigned ONVOY, LLC - LA 749E CROWLEY LA
2023-07-13 337-767-6XXX 6000–6999Assigned ONVOY, LLC - LA 749E CROWLEY LA
2023-07-13 337-915-1XXX 1000–1999Assigned ONVOY, LLC - LA 749E CARENCRO LA
2023-06-30 337-730-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H OPELOUSAS LA
2023-06-30 337-771-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H PARKS LA
2023-06-29 337-450-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H YOUNGSVL LA
2023-06-29 337-473-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H RAGLEY LA
2023-06-29 337-481-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H STARKS LA
2023-06-29 337-547-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H NEW IBERIA LA
2023-06-29 337-559-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H SWEET LAKE LA
2023-06-29 337-586-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H WEEKS IS LA
2023-06-29 337-637-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H RAYNE LA
2023-06-29 337-674-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H SULPHUR LA
2023-06-29 337-748-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H WASHINGTON LA
2023-06-29 337-777-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H PORT BARRE LA
2023-06-29 337-832-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H STMARTINVL LA
2023-06-29 337-848-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H SUNSET LA
2023-06-29 337-877-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H VINTON LA
2023-06-28 337-285-3XXX 3000–3999Assigned BOOST SUBSCRIBERCO L.L.C. 490J KAPLAN LA
2023-06-28 337-403-2XXX 2000–2999Assigned BOOST SUBSCRIBERCO L.L.C. 490J HAYES LA
2023-06-28 337-473-4XXX 4000–4999Assigned BOOST SUBSCRIBERCO L.L.C. 490J RAGLEY LA
2023-06-28 337-556-2XXX 2000–2999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CHURCH PT 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.