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
2021-03-26 641-655-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F FARSON IA
2021-03-26 641-655-9XXX 9000–9999Assigned ONVOY, LLC - IA 221F FARSON IA
2021-03-26 641-656-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F MILTON IA
2021-03-26 641-656-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F MILTON IA
2021-03-26 641-661-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F MARTINSBG IA
2021-03-26 641-661-9XXX 9000–9999Assigned ONVOY, LLC - IA 221F MARTINSBG IA
2021-03-26 641-667-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F OLLIE IA
2021-03-26 641-977-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F NEW SHARON IA
2021-03-26 641-977-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F NEW SHARON IA
2021-03-25 641-232-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F LEIGHTON IA
2021-03-25 641-232-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F LEIGHTON IA
2021-03-25 641-239-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F AFTON IA
2021-03-25 641-239-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F AFTON IA
2021-03-25 641-400-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F HUMESTON IA
2021-03-25 641-400-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F HUMESTON IA
2021-03-25 641-433-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F WHAT CHEER IA
2021-03-25 641-433-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F WHAT CHEER IA
2021-03-25 641-448-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F MELCHER IA
2021-03-25 641-448-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F MELCHER IA
2021-03-25 641-600-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F LIBERTYVL IA
2021-03-25 641-600-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F LIBERTYVL IA
2021-03-25 641-624-0XXX 0000–0999Assigned ONVOY, LLC - IA 221F DELTA IA
2021-03-25 641-624-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F DELTA IA
2021-03-25 641-653-0XXX 0000–0999Assigned ONVOY, LLC - IA 221F HEDRICK IA
2021-03-25 641-653-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F HEDRICK IA
2021-03-25 641-955-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F MONROE IA
2021-03-25 641-955-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F MONROE IA
2021-03-24 641-212-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F GREENFIELD IA
2021-03-24 641-212-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F GREENFIELD IA
2021-03-24 641-531-0XXX 0000–0999Assigned ONVOY, LLC - IA 221F IOWA FALLS IA
2021-03-24 641-627-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F OTLEY IA
2021-03-24 641-627-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F OTLEY IA
2021-03-24 641-726-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F MELROSE IA
2021-03-24 641-734-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F DIAGONAL IA
2021-03-24 641-734-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F DIAGONAL IA
2021-03-24 641-933-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F FREMONT IA
2021-03-24 641-933-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F FREMONT IA
2021-03-22 641-274-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F LOVILIA IA
2021-03-22 641-274-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F LOVILIA IA
2021-03-22 641-768-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F MACKSBURG IA
2021-03-22 641-768-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F MACKSBURG IA
2021-03-22 641-898-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F SEYMOUR IA
2021-03-22 641-898-9XXX 9000–9999Assigned ONVOY, LLC - IA 221F SEYMOUR IA
2021-03-22 641-942-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F MILO IA
2021-03-22 641-944-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F BUSSEY IA
2021-03-19 641-207-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F KEOTA IA
2021-03-19 641-207-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F KEOTA IA
2021-03-19 641-209-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F FAIRFIELD IA
2021-03-19 641-215-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F OSKALOOSA IA
2021-03-19 641-215-9XXX 9000–9999Assigned ONVOY, LLC - IA 221F OSKALOOSA 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.