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
2007-04-26 515-783-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2007-04-19 515-494-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2007-04-19 515-494-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2007-04-19 515-494-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2007-03-20 515-783-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2007-03-20 515-783-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2007-03-20 515-783-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2007-03-19 515-509-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 AMES IA
2007-03-14 515-783-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2007-03-14 515-783-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2007-03-14 515-783-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2007-03-14 515-783-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2007-03-14 515-783-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2007-02-08 515-509-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 AMES IA
2007-01-25 515-257-8XXX 8000–8999Assigned MCC TELEPHONY OF IOWA, LLC - IA 751F DES MOINES IA
2007-01-19 515-298-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BOONE IA
2007-01-17 515-422-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J DES MOINES IA
2007-01-08 515-598-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J AMES IA
2006-12-29 515-209-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WEBSTER CY IA
2006-12-29 515-447-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2006-12-29 515-447-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2006-12-29 515-447-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2006-12-29 515-447-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2006-12-29 515-447-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2006-12-15 515-422-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2006-12-15 515-422-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2006-12-15 515-422-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2006-12-15 515-422-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2006-12-12 515-422-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J DES MOINES IA
2006-12-07 515-447-4XXX 4000–4999Assigned QWEST CORPORATION 9631 DES MOINES IA
2006-11-06 515-422-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2006-11-06 515-422-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2006-11-06 515-447-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2006-11-06 515-447-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2006-11-06 515-447-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2006-11-06 515-447-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2006-11-02 515-434-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MCCALLSBG IA
2006-10-27 515-339-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2006-10-12 515-339-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2006-10-12 515-339-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2006-10-10 515-333-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2006-10-10 515-333-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2006-10-10 515-339-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2006-10-10 515-339-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2006-10-03 515-339-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2006-10-03 515-339-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2006-10-02 515-203-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AMES IA
2006-10-02 515-339-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2006-09-29 515-867-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2006-09-29 515-867-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 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.