NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

12 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 319
ONVOY, LLC - IA 6
T-MOBILE USA, INC. 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 2
BANDWIDTH.COM CLEC, LLC - IA 2
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
2020-09-03 319-438-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F CENTRAL CY IA
2020-09-03 319-727-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F COGGON IA
2020-09-02 319-348-2XXX 2000–2999Assigned AIRUS, INC - IA 423H WATERLOO IA
2020-08-19 319-302-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E CENTER PT IA
2020-07-30 319-201-6XXX 6000–6999Assigned UNITED STATES CELLULAR - IA 6266 MTPLEASANT IA
2020-07-24 319-989-1XXX 1000–1999Assigned UNITED STATES CELLULAR - IA 6266 PARKERSBG IA
2020-07-23 319-304-2XXX 2000–2999Assigned CSC WIRELESS, LLC 425J CEDAR RPDS IA
2020-07-21 319-326-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E INDEPNDNCE IA
2020-07-16 319-699-9XXX 9000–9999Assigned FRACTEL, LLC 965H ALLISON IA
2020-07-16 319-777-5XXX 5000–5999Assigned FRACTEL, LLC 965H CEDAR RPDS IA
2020-07-15 319-669-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F FT MADISON IA
2020-07-10 319-206-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CEDAR RPDS IA
2020-06-18 319-732-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H KEOKUK IA
2020-06-18 319-732-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H KEOKUK IA
2020-06-18 319-732-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H KEOKUK IA
2020-06-16 319-323-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OELWEIN IA
2020-06-12 319-288-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KEOSAUQUA IA
2020-06-12 319-344-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLUMBSJCT IA
2020-06-12 319-835-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DONNELLSON IA
2020-06-12 319-878-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FARMINGTON IA
2020-05-29 319-219-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F MTPLEASANT IA
2020-05-29 319-253-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F HILLSBORO IA
2020-05-29 319-254-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F OLDS IA
2020-05-29 319-255-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F COLUMBSJCT IA
2020-05-29 319-257-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F WINFIELD IA
2020-05-29 319-258-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F SALEM IA
2020-05-29 319-367-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F NEW LONDON IA
2020-05-29 319-456-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F RICHLAND IA
2020-05-29 319-463-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F MONTROSE IA
2020-05-29 319-469-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F HOUGHTON IA
2020-05-29 319-528-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F DENMARK IA
2020-05-29 319-614-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F PACKWOOD IA
2020-05-29 319-657-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F AINSWORTH IA
2020-05-29 319-658-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F CRAWFODSVL IA
2020-05-29 319-694-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F BRIGHTON IA
2020-05-29 319-696-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F LOCKRIDGE IA
2020-05-29 319-725-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F CONESVILLE IA
2020-05-29 319-726-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F LETTS IA
2020-05-29 319-729-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F GRANDVIEW IA
2020-05-29 319-766-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F OAKVILLE IA
2020-05-29 319-835-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F DONNELLSON IA
2020-05-29 319-836-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F PRIMROSE IA
2020-05-29 319-837-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F WEST POINT IA
2020-05-29 319-838-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F ARGYLE IA
2020-05-29 319-878-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F FARMINGTON IA
2020-05-29 319-881-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F WAPELLO IA
2020-05-29 319-946-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F MOUNTUNION IA
2020-05-28 319-224-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F TROY MILLS IA
2020-05-28 319-408-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F LISBON IA
2020-05-28 319-448-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F WALKER 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.