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
2011-11-17 515-493-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 WINTERSET IA
2011-11-15 515-212-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F BOONE IA
2011-11-15 515-361-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F ALGONA IA
2011-11-15 515-478-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F ADEL IA
2011-11-15 515-505-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F DES MOINES IA
2011-11-02 515-337-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 AMES IA
2011-10-28 515-674-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E COLFAX IA
2011-10-27 515-236-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 BOONE IA
2011-10-12 515-505-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2011-09-23 515-829-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2011-09-22 515-209-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E WEBSTER CY IA
2011-09-22 515-679-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E WESLEY IA
2011-09-15 515-216-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J DES MOINES IA
2011-08-25 515-441-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 AMES IA
2011-08-25 515-493-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 WINTERSET IA
2011-08-25 515-619-9XXX 9000–9999Assigned MCC TELEPHONY OF IOWA, LLC - IA 751F DES MOINES IA
2011-08-25 515-777-3XXX 3000–3999Assigned MCC TELEPHONY OF IOWA, LLC - IA 751F DES MOINES IA
2011-08-10 515-777-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2011-08-10 515-795-6XXX 6000–6999Assigned UNITED STATES CELLULAR - IA 6266 MADRID IA
2011-08-09 515-619-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2011-08-09 515-619-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2011-08-09 515-619-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2011-08-09 515-619-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2011-08-09 515-619-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2011-08-09 515-619-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2011-08-09 515-619-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2011-08-02 515-302-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 FORT DODGE IA
2011-07-29 515-318-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DES MOINES IA
2011-07-29 515-318-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DES MOINES IA
2011-07-26 515-612-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DES MOINES IA
2011-07-26 515-612-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DES MOINES IA
2011-07-26 515-612-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DES MOINES IA
2011-07-26 515-619-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 DES MOINES IA
2011-07-22 515-303-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E INDIANOLA IA
2011-07-22 515-803-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2011-07-22 515-803-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2011-07-22 515-803-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2011-07-22 515-803-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2011-07-22 515-803-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2011-07-22 515-803-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2011-07-22 515-803-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2011-07-22 515-803-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2011-07-22 515-803-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2011-07-22 515-803-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2011-07-19 515-216-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DES MOINES IA
2011-07-19 515-259-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DES MOINES IA
2011-07-19 515-519-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E RUNNELLS IA
2011-07-19 515-599-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E GRANGER IA
2011-07-19 515-809-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DES MOINES IA
2011-07-19 515-850-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E 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.