NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

4 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 641
ONVOY, LLC - IA 2
T-MOBILE USA, INC. 1
NEW CINGULAR WIRELESS PCS, LLC - IL 1
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
2021-03-19 641-225-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F EDDYVILLE IA
2021-03-19 641-225-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F EDDYVILLE IA
2021-03-19 641-238-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F GENEVA IA
2021-03-19 641-238-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F GENEVA IA
2021-03-19 641-300-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F OSAGE IA
2021-03-19 641-300-9XXX 9000–9999Assigned ONVOY, LLC - IA 221F OSAGE IA
2021-03-19 641-322-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F CORNING IA
2021-03-19 641-322-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F CORNING IA
2021-03-19 641-334-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F ROSE HILL IA
2021-03-19 641-334-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F ROSE HILL IA
2021-03-19 641-436-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F CENTERVL IA
2021-03-19 641-436-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F CENTERVL IA
2021-03-19 641-451-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F FAIRFIELD IA
2021-03-19 641-503-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F MOUNT AYR IA
2021-03-19 641-503-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F MOUNT AYR IA
2021-03-19 641-516-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F MARSHALLTN IA
2021-03-19 641-516-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F MARSHALLTN IA
2021-03-19 641-548-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F MASON CITY IA
2021-03-19 641-580-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F LATIMER IA
2021-03-19 641-580-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F LATIMER IA
2021-03-19 641-613-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F PELLA IA
2021-03-19 641-613-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F PELLA IA
2021-03-19 641-614-1XXX 1000–1999Assigned ONVOY, LLC - IA 221F SHARPSBURG IA
2021-03-19 641-614-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F SHARPSBURG IA
2021-03-19 641-630-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F HAMPTON IA
2021-03-19 641-630-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F HAMPTON IA
2021-03-19 641-649-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F PLANO IA
2021-03-19 641-649-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F PLANO IA
2021-03-19 641-677-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F SHEFFIELD IA
2021-03-19 641-677-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F SHEFFIELD IA
2021-03-19 641-681-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F GOODELL IA
2021-03-19 641-681-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F GOODELL IA
2021-03-19 641-688-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F TINGLEY IA
2021-03-19 641-688-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F TINGLEY IA
2021-03-19 641-717-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F COULTER IA
2021-03-19 641-717-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F COULTER IA
2021-03-19 641-724-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F MORAVIA IA
2021-03-19 641-724-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F MORAVIA IA
2021-03-19 641-728-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F PERU IA
2021-03-19 641-728-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F PERU IA
2021-03-19 641-742-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F ADAIR IA
2021-03-19 641-744-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F LINDEN IA
2021-03-19 641-744-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F LINDEN IA
2021-03-19 641-764-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F MARTENSDL IA
2021-03-19 641-764-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F MARTENSDL IA
2021-03-19 641-767-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F REDDING IA
2021-03-19 641-767-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F REDDING IA
2021-03-19 641-783-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F KELLERTON IA
2021-03-19 641-783-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F KELLERTON IA
2021-03-19 641-800-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F ACKLEY IA

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.