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
2020-10-22 641-466-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F LIBERTYCTR IA
2020-10-22 641-500-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F IOWA FALLS IA
2020-10-22 641-600-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F LIBERTYVL IA
2020-10-22 641-609-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F ALEXANDER IA
2020-10-22 641-609-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F ALEXANDER IA
2020-10-22 641-624-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F DELTA IA
2020-10-22 641-626-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F LEIGHTON IA
2020-10-22 641-635-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F HARPER IA
2020-10-22 641-652-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F ELDON IA
2020-10-22 641-653-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F HEDRICK IA
2020-10-22 641-655-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F FARSON IA
2020-10-22 641-658-9XXX 9000–9999Assigned ONVOY, LLC - IA 221F CINCINNATI IA
2020-10-22 641-671-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F LENOX IA
2020-10-22 641-671-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F LENOX IA
2020-10-22 641-681-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F GOODELL IA
2020-10-22 641-785-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F BENTON IA
2020-10-22 641-932-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F ALBIA IA
2020-10-22 641-934-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F BLADENSBG IA
2020-10-22 641-938-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F BLAKESBURG IA
2020-10-22 641-943-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F ATTICA IA
2020-10-22 641-969-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F EDDYVILLE IA
2020-10-09 641-219-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 CHARITON IA
2020-10-08 641-206-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 OSCEOLA IA
2020-10-08 641-321-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 MOUNT AYR IA
2020-10-08 641-347-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 AFTON IA
2020-10-08 641-362-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 CRESTON IA
2020-10-06 641-289-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 LAMONI IA
2020-10-06 641-523-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 CORYDON IA
2020-10-06 641-572-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 LEON IA
2020-09-23 641-619-5XXX 5000–5999Assigned IMON COMMUNICATIONS, LLC - IA 695G PELLA IA
2020-09-21 641-274-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LOVILIA IA
2020-09-20 641-384-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F BELMOND IA
2020-09-20 641-384-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F BELMOND IA
2020-09-19 641-944-3XXX 3000–3999Assigned AUREON COMMUNICATIONS, LLC 444G BUSSEY IA
2020-09-16 641-205-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KNOXVILLE IA
2020-09-16 641-300-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OSAGE IA
2020-09-16 641-336-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEARFIELD IA
2020-09-16 641-384-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BELMOND IA
2020-09-16 641-427-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BAGLEY IA
2020-09-16 641-503-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOUNT AYR IA
2020-09-16 641-634-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WHAT CHEER IA
2020-09-16 641-942-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILO IA
2020-09-10 641-238-0XXX 0000–0999Assigned TELNYX LLC 073H GENEVA IA
2020-09-10 641-888-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IA 8344 GRINNELL IA
2020-09-08 641-888-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 GRINNELL IA
2020-09-02 641-206-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F OSCEOLA IA
2020-09-02 641-206-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F OSCEOLA IA
2020-09-02 641-238-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F GENEVA IA
2020-09-02 641-238-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F GENEVA IA
2020-09-02 641-548-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F MASON CITY 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.