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
2020-05-05 641-999-2XXX 2000–2999Assigned TELNYX LLC 073H NASHUA IA
2020-05-04 641-500-0XXX 0000–0999Assigned TELNYX LLC 073H IOWA FALLS IA
2020-05-04 641-505-2XXX 2000–2999Assigned TELNYX LLC 073H MANLY IA
2020-05-04 641-519-6XXX 6000–6999Assigned TELNYX LLC 073H GARNER IA
2020-05-04 641-630-0XXX 0000–0999Assigned TELNYX LLC 073H HAMPTON IA
2020-05-01 641-362-0XXX 0000–0999Assigned TELNYX LLC 073H CRESTON IA
2020-05-01 641-461-0XXX 0000–0999Assigned TELNYX LLC 073H CHARLES CY IA
2020-05-01 641-819-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IA 8344 FAIRFIELD IA
2020-04-30 641-222-1XXX 1000–1999Assigned TELNYX LLC 073H BRITT IA
2020-04-29 641-300-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 OSAGE IA
2020-04-28 641-329-8XXX 8000–8999Assigned TELNYX LLC 073H BAILEY IA
2020-04-28 641-800-2XXX 2000–2999Assigned TELNYX LLC 073H ACKLEY IA
2020-04-27 641-298-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F AMUND IA
2020-04-20 641-260-3XXX 3000–3999Assigned UNITED STATES CELLULAR - IA 6266 GRINNELL IA
2020-03-31 641-575-2XXX 2000–2999Assigned MCC TELEPHONY OF IOWA, LLC - IA 751F OTTUMWA IA
2020-03-23 641-384-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F BELMOND IA
2020-03-23 641-717-1XXX 1000–1999Assigned ONVOY, LLC - IA 221F COULTER IA
2020-02-27 641-298-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F AMUND IA
2020-02-27 641-298-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F AMUND IA
2020-02-27 641-326-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F MONA IA
2020-02-27 641-329-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F BAILEY IA
2020-02-27 641-586-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F SOUTHADAMS IA
2020-02-10 641-362-8XXX 8000–8999Assigned FRACTEL, LLC 965H CRESTON IA
2020-02-10 641-400-0XXX 0000–0999Assigned FRACTEL, LLC 965H HUMESTON IA
2020-02-10 641-400-4XXX 4000–4999Assigned FRACTEL, LLC 965H HUMESTON IA
2020-02-10 641-432-8XXX 8000–8999Assigned FRACTEL, LLC 965H FORESTCITY IA
2020-02-10 641-888-2XXX 2000–2999Assigned FRACTEL, LLC 965H GRINNELL IA
2020-02-10 641-888-4XXX 4000–4999Assigned FRACTEL, LLC 965H GRINNELL IA
2020-02-10 641-888-5XXX 5000–5999Assigned FRACTEL, LLC 965H GRINNELL IA
2020-02-10 641-888-7XXX 7000–7999Assigned FRACTEL, LLC 965H GRINNELL IA
2020-02-07 641-362-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IA 8344 CRESTON IA
2020-02-07 641-871-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IA 8344 KNOXVILLE IA
2020-01-23 641-401-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F SWALEDALE IA
2020-01-17 641-369-5XXX 5000–5999Assigned AUREON COMMUNICATIONS, LLC 444G BRIDGEWTR IA
2020-01-17 641-437-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IA 8344 CENTERVL IA
2020-01-15 641-220-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 CHARLES CY IA
2020-01-09 641-222-2XXX 2000–2999Assigned FRACTEL, LLC 965H BRITT IA
2020-01-02 641-900-0XXX 0000–0999Assigned FRACTEL, LLC 965H MONA IA
2020-01-02 641-900-9XXX 9000–9999Assigned FRACTEL, LLC 965H MONA IA
2019-12-30 641-300-0XXX 0000–0999Assigned FRACTEL, LLC 965H OSAGE IA
2019-12-30 641-300-3XXX 3000–3999Assigned FRACTEL, LLC 965H OSAGE IA
2019-12-30 641-356-7XXX 7000–7999Assigned FRACTEL, LLC 965H GLADBROOK IA
2019-12-30 641-356-9XXX 9000–9999Assigned FRACTEL, LLC 965H GLADBROOK IA
2019-12-30 641-500-2XXX 2000–2999Assigned VONAGE AMERICA LLC 197D IOWA FALLS IA
2019-12-30 641-600-0XXX 0000–0999Assigned FRACTEL, LLC 965H LIBERTYVL IA
2019-12-30 641-600-6XXX 6000–6999Assigned FRACTEL, LLC 965H LIBERTYVL IA
2019-12-30 641-677-7XXX 7000–7999Assigned FRACTEL, LLC 965H SHEFFIELD IA
2019-12-10 641-298-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F AMUND IA
2019-12-10 641-586-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F SOUTHADAMS IA
2019-11-13 641-622-6XXX 6000–6999Assigned MAHASKA COMMUNICATION GROUP, LLC - IA 916A SIGOURNEY 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.