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
2009-08-27 515-954-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2009-08-27 515-954-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2009-08-27 515-954-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2009-08-27 515-954-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2009-08-27 515-954-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2009-08-25 515-635-2XXX 2000–2999Assigned QWEST CORPORATION 9631 DES MOINES IA
2009-08-18 515-954-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F DES MOINES IA
2009-07-20 515-657-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2009-07-20 515-657-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DES MOINES IA
2009-07-06 515-724-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2009-07-06 515-724-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2009-07-01 515-954-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J DES MOINES IA
2009-06-09 515-302-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 FORT DODGE IA
2009-06-04 515-635-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IA 8344 DES MOINES IA
2009-05-07 515-337-6XXX 6000–6999Assigned QWEST CORPORATION 9631 AMES IA
2009-05-07 515-337-7XXX 7000–7999Assigned QWEST CORPORATION 9631 AMES IA
2009-04-02 515-978-2XXX 2000–2999Assigned QWEST CORPORATION 9631 DES MOINES IA
2009-02-23 515-657-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DES MOINES IA
2009-02-19 515-822-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2009-02-17 515-269-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 FORT DODGE IA
2009-02-17 515-473-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2009-02-17 515-657-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2009-02-17 515-657-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2009-02-17 515-657-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2009-02-17 515-724-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2009-02-13 515-257-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2009-01-15 515-509-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 AMES IA
2009-01-13 515-661-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2009-01-05 515-963-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F DES MOINES IA
2008-12-18 515-954-1XXX 1000–1999Assigned WINDSTREAM IT-COMM, LLC - IA 938D DES MOINES IA
2008-12-15 515-657-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2008-11-24 515-724-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2008-11-17 515-478-0XXX 0000–0999Assigned UNITED STATES CELLULAR - IA 6266 ADEL IA
2008-11-17 515-726-0XXX 0000–0999Assigned UNITED STATES CELLULAR - IA 6266 PERRY IA
2008-11-10 515-509-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 AMES IA
2008-11-07 515-442-3XXX 3000–3999Assigned UNITED STATES CELLULAR - IA 6266 INDIANOLA IA
2008-11-07 515-468-5XXX 5000–5999Assigned UNITED STATES CELLULAR - IA 6266 WINTERSET IA
2008-10-30 515-257-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DES MOINES IA
2008-10-30 515-259-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DES MOINES IA
2008-10-30 515-367-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E ELKHART IA
2008-10-30 515-428-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DAWSON IA
2008-10-30 515-442-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E INDIANOLA IA
2008-10-30 515-462-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E WINTERSET IA
2008-10-30 515-481-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E PLEASANTVL IA
2008-10-30 515-523-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E STUART IA
2008-10-30 515-676-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E BOUTON IA
2008-10-30 515-758-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E EARLHAM IA
2008-10-30 515-789-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DEXTER IA
2008-10-30 515-833-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E REDFIELD IA
2008-10-30 515-834-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DE SOTO 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.