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
2021-03-19 641-800-9XXX 9000–9999Assigned ONVOY, LLC - IA 221F ACKLEY IA
2021-03-19 641-820-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F KNOXVILLE IA
2021-03-19 641-820-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F KNOXVILLE IA
2021-03-19 641-840-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F NEWTON IA
2021-03-19 641-841-9XXX 9000–9999Assigned ONVOY, LLC - IA 221F NEWTON IA
2021-03-19 641-862-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F WILLIAMSON IA
2021-03-19 641-862-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F WILLIAMSON IA
2021-03-19 641-874-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F PROMISE CY IA
2021-03-19 641-874-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F PROMISE CY IA
2021-03-19 641-925-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F GARNER IA
2021-03-19 641-925-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F GARNER IA
2021-03-19 641-935-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F CHILLICOTH IA
2021-03-19 641-935-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F CHILLICOTH IA
2021-03-19 641-936-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F DOUDS IA
2021-03-19 641-936-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F DOUDS IA
2021-03-19 641-949-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F TRACY IA
2021-03-19 641-949-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F TRACY IA
2021-03-09 641-659-6XXX 6000–6999Assigned MAHASKA COMMUNICATION GROUP, LLC - IA 916A GRINNELL IA
2021-03-04 641-206-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F OSCEOLA IA
2021-03-04 641-206-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F OSCEOLA IA
2021-03-04 641-534-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F LACONA IA
2021-03-04 641-534-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F LACONA IA
2021-03-03 641-239-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AFTON IA
2021-02-28 641-219-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHARITON IA
2021-02-28 641-322-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CORNING IA
2021-02-28 641-362-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CRESTON IA
2021-02-28 641-523-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CORYDON IA
2021-02-28 641-671-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LENOX IA
2021-02-16 641-242-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLOOMFIELD IA
2021-02-12 641-999-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F NASHUA IA
2021-02-12 641-999-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F NASHUA IA
2021-02-11 641-219-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F CHARITON IA
2021-02-11 641-219-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F CHARITON IA
2021-02-11 641-505-9XXX 9000–9999Assigned ONVOY, LLC - IA 221F MANLY IA
2021-02-11 641-586-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F SOUTHADAMS IA
2021-02-11 641-900-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F MONA IA
2021-02-11 641-900-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F MONA IA
2021-01-27 641-800-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H ACKLEY IA
2021-01-27 641-800-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ACKLEY IA
2021-01-08 641-289-3XXX 3000–3999Assigned UNITED STATES CELLULAR - IA 6266 LAMONI IA
2020-12-16 641-231-9XXX 9000–9999Assigned UNITED STATES CELLULAR - IA 6266 CLEAR LAKE IA
2020-12-15 641-354-0XXX 0000–0999Assigned STRATUS NETWORKS 495J MARSHALLTN IA
2020-12-09 641-281-1XXX 1000–1999Assigned STRATUS NETWORKS 495J CHARLES CY IA
2020-11-17 641-354-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 MARSHALLTN IA
2020-10-30 641-334-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F ROSE HILL IA
2020-10-30 641-335-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F PRESCOTT IA
2020-10-30 641-339-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F SHANNON CY IA
2020-10-30 641-401-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F SWALEDALE IA
2020-10-30 641-401-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F SWALEDALE IA
2020-10-30 641-433-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F WHAT CHEER 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.