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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2020-08-18 641-347-0XXX 0000–0999Assigned AUREON COMMUNICATIONS, LLC 444G AFTON IA
2020-08-18 641-385-0XXX 0000–0999Assigned AUREON COMMUNICATIONS, LLC 444G COLLINS IA
2020-08-18 641-449-2XXX 2000–2999Assigned AUREON COMMUNICATIONS, LLC 444G NEWVIRGINI IA
2020-08-18 641-630-2XXX 2000–2999Assigned AUREON COMMUNICATIONS, LLC 444G HAMPTON IA
2020-08-18 641-999-3XXX 3000–3999Assigned AUREON COMMUNICATIONS, LLC 444G NASHUA IA
2020-08-11 641-214-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DAVIS CITY IA
2020-08-06 641-277-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OTTUMWA IA
2020-08-03 641-334-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F ROSE HILL IA
2020-08-03 641-334-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F ROSE HILL IA
2020-08-03 641-406-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F MESERVEY IA
2020-08-03 641-406-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F MESERVEY IA
2020-08-03 641-500-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F IOWA FALLS IA
2020-08-03 641-500-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F IOWA FALLS IA
2020-08-03 641-505-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F MANLY IA
2020-08-03 641-505-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F MANLY IA
2020-08-03 641-614-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F SHARPSBURG IA
2020-08-03 641-614-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F SHARPSBURG IA
2020-07-21 641-688-8XXX 8000–8999Assigned FRACTEL, LLC 965H TINGLEY IA
2020-07-21 641-955-5XXX 5000–5999Assigned FRACTEL, LLC 965H MONROE IA
2020-07-21 641-977-7XXX 7000–7999Assigned FRACTEL, LLC 965H NEW SHARON IA
2020-07-15 641-321-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F MOUNT AYR IA
2020-07-15 641-329-9XXX 9000–9999Assigned ONVOY, LLC - IA 221F BAILEY IA
2020-07-15 641-332-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F GUTHRIECTR IA
2020-07-15 641-381-9XXX 9000–9999Assigned ONVOY, LLC - IA 221F NORTHWOOD IA
2020-07-15 641-401-1XXX 1000–1999Assigned ONVOY, LLC - IA 221F SWALEDALE IA
2020-07-15 641-418-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F CORNING IA
2020-07-15 641-436-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F CENTERVL IA
2020-07-15 641-900-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F MONA IA
2020-06-11 641-238-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GENEVA IA
2020-06-11 641-461-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHARLES CY IA
2020-06-11 641-500-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 IOWA FALLS IA
2020-06-11 641-624-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DELTA IA
2020-06-11 641-636-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KEOTA IA
2020-06-11 641-637-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEW SHARON IA
2020-06-11 641-656-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILTON IA
2020-06-11 641-658-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CINCINNATI IA
2020-06-11 641-790-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SIGOURNEY IA
2020-06-11 641-925-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GARNER IA
2020-05-15 641-849-3XXX 3000–3999Assigned UNITED STATES CELLULAR - IA 6266 ELDORA IA
2020-05-06 641-525-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 CLEAR LAKE IA
2020-05-05 641-206-0XXX 0000–0999Assigned TELNYX LLC 073H OSCEOLA IA
2020-05-05 641-215-3XXX 3000–3999Assigned TELNYX LLC 073H OSKALOOSA IA
2020-05-05 641-244-4XXX 4000–4999Assigned TELNYX LLC 073H OTTUMWA IA
2020-05-05 641-300-1XXX 1000–1999Assigned TELNYX LLC 073H OSAGE IA
2020-05-05 641-323-9XXX 9000–9999Assigned TELNYX LLC 073H NORTHWOOD IA
2020-05-05 641-334-0XXX 0000–0999Assigned TELNYX LLC 073H ROSE HILL IA
2020-05-05 641-354-2XXX 2000–2999Assigned TELNYX LLC 073H MARSHALLTN IA
2020-05-05 641-548-3XXX 3000–3999Assigned TELNYX LLC 073H MASON CITY IA
2020-05-05 641-586-6XXX 6000–6999Assigned TELNYX LLC 073H SOUTHADAMS IA
2020-05-05 641-900-1XXX 1000–1999Assigned TELNYX LLC 073H MONA 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.