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
2021-02-15 319-729-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F GRANDVIEW IA
2021-02-15 319-734-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F CEDAR RPDS IA
2021-02-15 319-766-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F OAKVILLE IA
2021-02-15 319-836-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F PRIMROSE IA
2021-02-15 319-837-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F WEST POINT IA
2021-02-15 319-838-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F ARGYLE IA
2021-02-15 319-878-0XXX 0000–0999Assigned ONVOY, LLC - IA 221F FARMINGTON IA
2021-02-15 319-881-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F WAPELLO IA
2021-02-15 319-888-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F WATERLOO IA
2021-02-15 319-900-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F CEDAR RPDS IA
2021-02-15 319-938-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F ROWLEY IA
2021-02-15 319-946-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F MOUNTUNION IA
2021-02-15 319-984-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F DENVER IA
2021-02-14 319-204-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F MTPLEASANT IA
2021-02-14 319-204-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F MTPLEASANT IA
2021-02-14 319-204-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F MTPLEASANT IA
2021-02-14 319-212-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F COLUMBSJCT IA
2021-02-14 319-212-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F COLUMBSJCT IA
2021-02-14 319-253-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F HILLSBORO IA
2021-02-14 319-254-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F OLDS IA
2021-02-14 319-257-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F WINFIELD IA
2021-02-14 319-258-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F SALEM IA
2021-02-14 319-308-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F FT MADISON IA
2021-02-14 319-308-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F FT MADISON IA
2021-02-14 319-308-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F FT MADISON IA
2021-02-14 319-308-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F FT MADISON IA
2021-02-14 319-324-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F BRIGHTON IA
2021-02-14 319-380-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F BURLINGTON IA
2021-02-14 319-380-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F BURLINGTON IA
2021-02-14 319-456-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F RICHLAND IA
2021-02-14 319-463-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F MONTROSE IA
2021-02-14 319-614-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F PACKWOOD IA
2021-02-14 319-657-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F AINSWORTH IA
2021-02-14 319-658-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F CRAWFODSVL IA
2021-02-14 319-732-1XXX 1000–1999Assigned ONVOY, LLC - IA 221F KEOKUK IA
2021-02-14 319-732-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F KEOKUK IA
2021-02-12 319-255-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 COLUMBSJCT IA
2021-02-12 319-983-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F PARKERSBG IA
2021-02-12 319-983-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F PARKERSBG IA
2021-02-12 319-989-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F PARKERSBG IA
2021-02-11 319-820-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F MONTICELLO IA
2021-02-11 319-820-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F MONTICELLO IA
2021-01-20 319-582-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F CEDAR RPDS IA
2021-01-20 319-582-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F CEDAR RPDS IA
2021-01-20 319-582-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F CEDAR RPDS IA
2021-01-20 319-582-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F CEDAR RPDS IA
2021-01-20 319-582-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F CEDAR RPDS IA
2021-01-15 319-552-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F MTPLEASANT IA
2021-01-15 319-552-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F MTPLEASANT IA
2021-01-15 319-552-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F MTPLEASANT 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.