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
2004-09-24 515-324-2XXX 2000–2999Assigned QWEST CORPORATION 9631 DES MOINES IA
2004-09-24 515-324-3XXX 3000–3999Assigned QWEST CORPORATION 9631 DES MOINES IA
2004-09-24 515-324-4XXX 4000–4999Assigned QWEST CORPORATION 9631 DES MOINES IA
2004-09-24 515-324-5XXX 5000–5999Assigned QWEST CORPORATION 9631 DES MOINES IA
2004-09-24 515-324-6XXX 6000–6999Assigned QWEST CORPORATION 9631 DES MOINES IA
2004-09-24 515-324-7XXX 7000–7999Assigned QWEST CORPORATION 9631 DES MOINES IA
2004-09-24 515-324-8XXX 8000–8999Assigned QWEST CORPORATION 9631 DES MOINES IA
2004-09-24 515-324-9XXX 9000–9999Assigned QWEST CORPORATION 9631 DES MOINES IA
2004-09-24 515-419-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2004-09-24 515-419-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2004-09-24 515-419-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2004-08-25 515-419-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2004-08-18 515-367-7XXX 7000–7999Assigned HUXLEY COMMUNICATIONS COOPERATIVE - IA 5852 ELKHART IA
2004-08-13 515-953-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2004-08-13 515-953-9XXX 9000–9999Assigned METROPCS, INC. 5562 DES MOINES IA
2004-07-15 515-418-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DES MOINES IA
2004-07-08 515-559-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2004-07-08 515-559-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2004-07-08 515-559-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2004-06-30 515-974-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2004-06-30 515-974-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2004-06-28 515-227-2XXX 2000–2999Assigned UNITED STATES CELLULAR - IA 6266 FORT DODGE IA
2004-05-07 515-313-3XXX 3000–3999Assigned UNITED STATES CELLULAR - IA 6266 DES MOINES IA
2004-05-07 515-313-5XXX 5000–5999Assigned UNITED STATES CELLULAR - IA 6266 DES MOINES IA
2004-05-07 515-313-6XXX 6000–6999Assigned UNITED STATES CELLULAR - IA 6266 DES MOINES IA
2004-05-07 515-313-7XXX 7000–7999Assigned UNITED STATES CELLULAR - IA 6266 DES MOINES IA
2004-05-07 515-313-8XXX 8000–8999Assigned UNITED STATES CELLULAR - IA 6266 DES MOINES IA
2004-04-06 515-313-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2003-11-07 515-974-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J DES MOINES IA
2003-11-07 515-974-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J DES MOINES IA
2003-09-16 515-419-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2003-09-16 515-419-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2003-09-16 515-419-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2003-09-03 515-720-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DES MOINES IA
2003-07-18 515-358-0XXX 0000–0999Assigned QWEST CORPORATION 9631 DES MOINES IA
2003-07-18 515-358-1XXX 1000–1999Assigned QWEST CORPORATION 9631 DES MOINES IA
2003-07-18 515-358-2XXX 2000–2999Assigned QWEST CORPORATION 9631 DES MOINES IA
2003-07-18 515-358-3XXX 3000–3999Assigned QWEST CORPORATION 9631 DES MOINES IA
2003-07-18 515-358-4XXX 4000–4999Assigned QWEST CORPORATION 9631 DES MOINES IA
2003-07-18 515-358-5XXX 5000–5999Assigned QWEST CORPORATION 9631 DES MOINES IA
2003-07-18 515-358-6XXX 6000–6999Assigned QWEST CORPORATION 9631 DES MOINES IA
2003-07-18 515-358-7XXX 7000–7999Assigned QWEST CORPORATION 9631 DES MOINES IA
2003-07-18 515-358-8XXX 8000–8999Assigned QWEST CORPORATION 9631 DES MOINES IA
2003-07-18 515-358-9XXX 9000–9999Assigned QWEST CORPORATION 9631 DES MOINES IA
2003-05-09 515-633-4XXX 4000–4999Assigned QWEST CORPORATION 9631 DES MOINES IA
2003-05-09 515-633-5XXX 5000–5999Assigned QWEST CORPORATION 9631 DES MOINES IA
2003-03-25 515-598-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J AMES IA
2003-03-25 515-963-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J DES MOINES IA
2002-12-12 515-208-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 DES MOINES IA
2002-12-12 515-208-8XXX 8000–8999Assigned 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.