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
2021-01-26 337-454-8XXX 8000–8999Assigned ONVOY, LLC - LA 749E CECELIA LA
2021-01-26 337-454-9XXX 9000–9999Assigned ONVOY, LLC - LA 749E CECELIA LA
2021-01-26 337-455-4XXX 4000–4999Assigned ONVOY, LLC - LA 749E BREAUX BDG LA
2021-01-26 337-455-8XXX 8000–8999Assigned ONVOY, LLC - LA 749E BREAUX BDG LA
2021-01-26 337-472-3XXX 3000–3999Assigned ONVOY, LLC - LA 749E MAMOU LA
2021-01-26 337-472-4XXX 4000–4999Assigned ONVOY, LLC - LA 749E MAMOU LA
2021-01-26 337-473-2XXX 2000–2999Assigned ONVOY, LLC - LA 749E RAGLEY LA
2021-01-26 337-473-3XXX 3000–3999Assigned ONVOY, LLC - LA 749E RAGLEY LA
2021-01-26 337-561-6XXX 6000–6999Assigned ONVOY, LLC - LA 749E DUSON LA
2021-01-26 337-561-7XXX 7000–7999Assigned ONVOY, LLC - LA 749E DUSON LA
2021-01-26 337-592-6XXX 6000–6999Assigned ONVOY, LLC - LA 749E KROTZ SPG LA
2021-01-26 337-592-7XXX 7000–7999Assigned ONVOY, LLC - LA 749E KROTZ SPG LA
2021-01-26 337-592-8XXX 8000–8999Assigned ONVOY, LLC - LA 749E KROTZ SPG LA
2021-01-26 337-616-5XXX 5000–5999Assigned ONVOY, LLC - LA 749E JENNINGS LA
2021-01-22 337-361-2XXX 2000–2999Assigned ONVOY, LLC - LA 749E ERATH LA
2021-01-22 337-444-5XXX 5000–5999Assigned ONVOY, LLC - LA 749E PARKS LA
2021-01-22 337-445-4XXX 4000–4999Assigned ONVOY, LLC - LA 749E BROUSSARD LA
2021-01-22 337-445-5XXX 5000–5999Assigned ONVOY, LLC - LA 749E BROUSSARD LA
2021-01-22 337-445-6XXX 6000–6999Assigned ONVOY, LLC - LA 749E BROUSSARD LA
2021-01-22 337-486-5XXX 5000–5999Assigned ONVOY, LLC - LA 749E STMARTINVL LA
2021-01-22 337-486-6XXX 6000–6999Assigned ONVOY, LLC - LA 749E STMARTINVL LA
2021-01-22 337-495-2XXX 2000–2999Assigned ONVOY, LLC - LA 749E DE RIDDER LA
2021-01-22 337-495-3XXX 3000–3999Assigned ONVOY, LLC - LA 749E DE RIDDER LA
2021-01-22 337-495-4XXX 4000–4999Assigned ONVOY, LLC - LA 749E DE RIDDER LA
2021-01-22 337-525-3XXX 3000–3999Assigned ONVOY, LLC - LA 749E DE QUINCY LA
2021-01-22 337-525-4XXX 4000–4999Assigned ONVOY, LLC - LA 749E DE QUINCY LA
2021-01-22 337-525-5XXX 5000–5999Assigned ONVOY, LLC - LA 749E DE QUINCY LA
2021-01-22 337-545-2XXX 2000–2999Assigned ONVOY, LLC - LA 749E CENTERVL LA
2021-01-22 337-545-3XXX 3000–3999Assigned ONVOY, LLC - LA 749E CENTERVL LA
2021-01-22 337-545-4XXX 4000–4999Assigned ONVOY, LLC - LA 749E CENTERVL LA
2021-01-22 337-904-4XXX 4000–4999Assigned ONVOY, LLC - LA 749E LOREAUVL LA
2021-01-21 337-282-5XXX 5000–5999Assigned ONVOY, LLC - LA 749E GUEYDAN LA
2021-01-21 337-403-3XXX 3000–3999Assigned ONVOY, LLC - LA 749E HAYES LA
2021-01-21 337-409-6XXX 6000–6999Assigned ONVOY, LLC - LA 749E VINTON LA
2021-01-21 337-434-5XXX 5000–5999Assigned ONVOY, LLC - LA 749E HENDERSON LA
2021-01-21 337-510-2XXX 2000–2999Assigned ONVOY, LLC - LA 749E SUNSET LA
2021-01-21 337-539-2XXX 2000–2999Assigned ONVOY, LLC - LA 749E GUEYDAN LA
2021-01-21 337-539-3XXX 3000–3999Assigned ONVOY, LLC - LA 749E GUEYDAN LA
2021-01-21 337-539-4XXX 4000–4999Assigned ONVOY, LLC - LA 749E GUEYDAN LA
2021-01-21 337-607-4XXX 4000–4999Assigned ONVOY, LLC - LA 749E SULPHUR LA
2021-01-21 337-607-6XXX 6000–6999Assigned ONVOY, LLC - LA 749E SULPHUR LA
2021-01-21 337-612-2XXX 2000–2999Assigned ONVOY, LLC - LA 749E IOTA LA
2021-01-21 337-614-4XXX 4000–4999Assigned ONVOY, LLC - LA 749E CANKTON LA
2021-01-21 337-847-8XXX 8000–8999Assigned ONVOY, LLC - LA 749E ARNAUDVL LA
2021-01-21 337-877-5XXX 5000–5999Assigned ONVOY, LLC - LA 749E VINTON LA
2021-01-21 337-877-6XXX 6000–6999Assigned ONVOY, LLC - LA 749E VINTON LA
2021-01-21 337-877-8XXX 8000–8999Assigned ONVOY, LLC - LA 749E VINTON LA
2021-01-21 337-940-6XXX 6000–6999Assigned ONVOY, LLC - LA 749E BALDWIN LA
2021-01-20 337-279-1XXX 1000–1999Assigned ONVOY, LLC - LA 749E LAFAYETTE LA
2021-01-20 337-279-2XXX 2000–2999Assigned ONVOY, LLC - LA 749E 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.