NumberResearch Membership · Data 09/19/2026

Thousands-blocks in 931-408

This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026

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

The ten 1,000-number thousand-blocks inside prefix 931-408 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 931 blocks

Most active assignees, all time — NPA 931
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 2
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 2
TELEPORT COMMUNICATIONS AMERICA, LLC - TN 1
POWERTEL NASHVILLE LICENSES, INC. 1
ONVOY, LLC - TN 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
2013-10-08 931-408-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 TULLAHOMA TN
2011-10-18 931-408-1XXX 1000–1999Assigned BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 TULLAHOMA TN
2011-10-18 931-408-2XXX 2000–2999Assigned BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 9419 TULLAHOMA TN
2012-06-26 931-408-3XXX 3000–3999Assigned POWERTEL NASHVILLE LICENSES, INC. 7476 TULLAHOMA TN
2012-12-13 931-408-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 TULLAHOMA TN
— 931-408-5XXX 5000–5999Available TULLAHOMA TN
2013-04-19 931-408-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TN 114F TULLAHOMA TN
2014-02-19 931-408-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TULLAHOMA TN
2016-10-31 931-408-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TULLAHOMA TN
2015-04-08 931-408-9XXX 9000–9999Assigned ONVOY, LLC - TN 525E TULLAHOMA TN

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.