NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 615-379

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 615-379 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 615 blocks

Most active assignees, all time — NPA 615
ONVOY, LLC - TN 3
LEVEL 3 COMMUNICATIONS, LLC - TN 2
BANDWIDTH.COM CLEC, LLC - TN 2
COMCAST IP PHONE, LLC 1
AT&T ENTERPRISES, LLC 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
2005-08-16 615-379-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - TN 4806 CRSPLORLND TN
2006-05-23 615-379-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J CRSPLORLND TN
— 615-379-2XXX 2000–2999Reserved LEVEL 3 COMMUNICATIONS, LLC - TN 4806 CRSPLORLND TN
2021-01-18 615-379-3XXX 3000–3999Assigned ONVOY, LLC - TN 525E CRSPLORLND TN
— 615-379-4XXX 4000–4999Available CRSPLORLND TN
2011-05-20 615-379-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C CRSPLORLND TN
2021-01-18 615-379-6XXX 6000–6999Assigned ONVOY, LLC - TN 525E CRSPLORLND TN
2011-08-19 615-379-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F CRSPLORLND TN
2008-10-30 615-379-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F CRSPLORLND TN
2021-02-26 615-379-9XXX 9000–9999Assigned ONVOY, LLC - TN 525E CRSPLORLND TN

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.