NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

9 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 515
ONVOY, LLC - IA 5
AUREON COMMUNICATIONS, LLC 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 1
BANDWIDTH.COM CLEC, LLC - IA 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
2012-11-15 515-809-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F DES MOINES IA
2012-11-15 515-809-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F DES MOINES IA
2012-11-15 515-850-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F DES MOINES IA
2012-11-15 515-850-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F DES MOINES IA
2012-11-15 515-882-1XXX 1000–1999Assigned ONVOY, LLC - IA 221F LUVERNE IA
2012-11-15 515-882-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F LUVERNE IA
2012-11-15 515-884-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F WHITTEMORE IA
2012-11-15 515-884-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F WHITTEMORE IA
2012-11-15 515-985-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F DES MOINES IA
2012-11-15 515-985-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F DES MOINES IA
2012-11-15 515-985-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F DES MOINES IA
2012-11-15 515-996-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F VAN METER IA
2012-11-14 515-800-0XXX 0000–0999Assigned ONVOY, LLC - IA 221F COLFAX IA
2012-11-14 515-800-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F COLFAX IA
2012-11-14 515-800-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F COLFAX IA
2012-11-14 515-800-9XXX 9000–9999Assigned ONVOY, LLC - IA 221F COLFAX IA
2012-11-07 515-608-1XXX 1000–1999Assigned NUSO, LLC 551G DES MOINES IA
2012-11-05 515-393-0XXX 0000–0999Assigned UNITED STATES CELLULAR - IA 6266 DES MOINES IA
2012-11-05 515-829-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2012-10-30 515-216-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2012-10-30 515-216-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2012-10-30 515-216-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2012-10-30 515-216-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2012-10-30 515-303-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 INDIANOLA IA
2012-10-30 515-303-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 INDIANOLA IA
2012-10-30 515-303-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 INDIANOLA IA
2012-10-30 515-303-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 INDIANOLA IA
2012-10-30 515-520-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 AMES IA
2012-10-30 515-817-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 AMES IA
2012-10-30 515-817-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 AMES IA
2012-10-30 515-817-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 AMES IA
2012-10-30 515-817-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AMES IA
2012-10-30 515-829-8XXX 8000–8999Assigned UNITED STATES CELLULAR - IA 6266 DES MOINES IA
2012-10-30 515-978-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2012-09-20 515-218-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DES MOINES IA
2012-09-20 515-218-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DES MOINES IA
2012-09-20 515-269-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 FORT DODGE IA
2012-09-20 515-612-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DES MOINES IA
2012-09-20 515-705-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 WINTERSET IA
2012-09-17 515-758-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E EARLHAM IA
2012-09-11 515-351-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GOWRIE IA
2012-08-28 515-777-6XXX 6000–6999Assigned UNITED STATES CELLULAR - IA 6266 DES MOINES IA
2012-08-13 515-777-5XXX 5000–5999Assigned UNITED STATES CELLULAR - IA 6266 DES MOINES IA
2012-08-09 515-216-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DES MOINES IA
2012-08-09 515-329-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E POLK CITY IA
2012-08-09 515-497-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E PRAIRIE CY IA
2012-08-09 515-996-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E VAN METER IA
2012-08-08 515-218-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2012-08-06 515-446-6XXX 6000–6999Assigned QWEST CORPORATION 9631 DES MOINES IA
2012-08-02 515-505-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES 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.