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
2007-11-21 515-564-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2007-11-21 515-822-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2007-10-30 515-822-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2007-10-19 515-822-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2007-10-18 515-227-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FORT DODGE IA
2007-10-18 515-343-1XXX 1000–1999Assigned QWEST CORPORATION 9631 DES MOINES IA
2007-10-17 515-343-2XXX 2000–2999Assigned QWEST CORPORATION 9631 DES MOINES IA
2007-10-17 515-343-3XXX 3000–3999Assigned QWEST CORPORATION 9631 DES MOINES IA
2007-10-15 515-822-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2007-09-18 515-203-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AMES IA
2007-09-14 515-957-5XXX 5000–5999Assigned QWEST CORPORATION 9631 DES MOINES IA
2007-09-11 515-822-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2007-09-11 515-822-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2007-09-11 515-822-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2007-09-06 515-868-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2007-09-06 515-868-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2007-09-06 515-868-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2007-08-29 515-573-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FORT DODGE IA
2007-08-29 515-817-5XXX 5000–5999Assigned QWEST CORPORATION 9631 AMES IA
2007-08-24 515-928-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TITONKA IA
2007-08-20 515-441-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 AMES IA
2007-08-15 515-200-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ALGONA IA
2007-08-03 515-269-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 FORT DODGE IA
2007-08-03 515-509-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 AMES IA
2007-07-25 515-822-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2007-07-25 515-822-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2007-07-25 515-868-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2007-07-25 515-868-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2007-07-19 515-441-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 AMES IA
2007-07-11 515-943-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2007-07-11 515-943-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2007-07-11 515-943-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2007-07-11 515-943-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2007-07-11 515-943-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2007-06-19 515-978-6XXX 6000–6999Assigned QWEST CORPORATION 9631 DES MOINES IA
2007-06-18 515-227-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 FORT DODGE IA
2007-06-15 515-868-0XXX 0000–0999Assigned AUREON COMMUNICATIONS, LLC 444G DES MOINES IA
2007-05-29 515-494-5XXX 5000–5999Assigned UNITED STATES CELLULAR - IA 6266 DES MOINES IA
2007-05-29 515-494-6XXX 6000–6999Assigned UNITED STATES CELLULAR - IA 6266 DES MOINES IA
2007-05-29 515-494-7XXX 7000–7999Assigned UNITED STATES CELLULAR - IA 6266 DES MOINES IA
2007-05-29 515-494-8XXX 8000–8999Assigned UNITED STATES CELLULAR - IA 6266 DES MOINES IA
2007-05-29 515-494-9XXX 9000–9999Assigned UNITED STATES CELLULAR - IA 6266 DES MOINES IA
2007-05-23 515-943-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2007-05-23 515-943-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2007-05-23 515-943-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2007-05-23 515-943-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2007-05-15 515-494-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2007-05-15 515-494-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2007-05-15 515-899-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 RADCLIFFE IA
2007-04-26 515-783-7XXX 7000–7999Assigned 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.