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
2015-11-24 515-499-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2015-11-23 515-686-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F AMES IA
2015-11-18 515-499-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2015-11-18 515-499-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2015-11-18 515-499-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2015-11-18 515-499-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2015-11-18 515-726-9XXX 9000–9999Assigned UNITED STATES CELLULAR - IA 6266 PERRY IA
2015-11-18 515-978-0XXX 0000–0999Assigned ONVOY, LLC - IA 221F DES MOINES IA
2015-11-12 515-499-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2015-11-12 515-499-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2015-11-12 515-499-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2015-11-12 515-739-2XXX 2000–2999Assigned OMNITEL COMMUNICATIONS, INC. - IA 3620 WINTERSET IA
2015-11-09 515-322-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2015-11-09 515-322-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2015-10-30 515-302-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IA 8344 FORT DODGE IA
2015-10-09 515-322-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2015-10-09 515-322-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2015-10-09 515-322-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2015-10-09 515-686-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 AMES IA
2015-10-09 515-686-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 AMES IA
2015-10-05 515-322-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2015-10-05 515-322-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2015-09-30 515-200-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 ALGONA IA
2015-09-29 515-297-9XXX 9000–9999Assigned AUREON COMMUNICATIONS, LLC 444G WEBSTER CY IA
2015-09-23 515-808-3XXX 3000–3999Assigned UNITED STATES CELLULAR - IA 6266 INDIANOLA IA
2015-09-16 515-322-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2015-09-16 515-322-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2015-09-14 515-446-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 DES MOINES IA
2015-09-14 515-989-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 DES MOINES IA
2015-09-10 515-735-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 AMES IA
2015-09-09 515-322-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2015-09-04 515-981-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2015-09-04 515-981-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2015-09-02 515-918-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2015-09-02 515-918-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2015-09-01 515-735-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AMES IA
2015-09-01 515-735-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AMES IA
2015-08-14 515-357-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 AMES IA
2015-08-10 515-809-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2015-08-10 515-809-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2015-08-10 515-850-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2015-08-06 515-576-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 FORT DODGE IA
2015-08-06 515-850-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2015-08-06 515-850-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2015-08-06 515-850-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2015-07-30 515-795-7XXX 7000–7999Assigned UNITED STATES CELLULAR - IA 6266 MADRID IA
2015-07-24 515-398-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 DES MOINES IA
2015-07-24 515-398-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 DES MOINES IA
2015-07-20 515-398-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 DES MOINES IA
2015-07-20 515-398-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 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.