NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 515-351

This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The ten 1,000-number thousand-blocks inside prefix 515-351 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 515 blocks

Most active assignees, all time — NPA 515
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 8
T-MOBILE USA, INC. 1
INTEGRATED PATH COMMUNCATIONS, 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
— 515-351-0XXX 0000–0999Reserved CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 GOWRIE IA
— 515-351-1XXX 1000–1999Reserved CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 GOWRIE IA
2013-04-17 515-351-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 GOWRIE IA
2012-09-11 515-351-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GOWRIE IA
2019-05-17 515-351-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 GOWRIE IA
2018-05-02 515-351-5XXX 5000–5999Assigned INTEGRATED PATH COMMUNCATIONS, LLC - IA 544H GOWRIE IA
2022-10-07 515-351-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 GOWRIE IA
— 515-351-7XXX 7000–7999Reserved CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 GOWRIE IA
— 515-351-8XXX 8000–8999Reserved CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 GOWRIE IA
— 515-351-9XXX 9000–9999Reserved CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 GOWRIE 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.