NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 641-871

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 641-871 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 641 blocks

Most active assignees, all time — NPA 641
4
T-MOBILE USA, INC. 2
TELEPORT COMMUNICATIONS AMERICA, LLC - IA 1
METROPCS, INC. 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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
— 641-871-0XXX 0000–0999Reserved CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 KNOXVILLE IA
— 641-871-1XXX 1000–1999Available KNOXVILLE IA
2018-03-13 641-871-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 KNOXVILLE IA
2018-03-13 641-871-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 KNOXVILLE IA
— 641-871-4XXX 4000–4999Available KNOXVILLE IA
— 641-871-5XXX 5000–5999Available KNOXVILLE IA
2020-02-07 641-871-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IA 8344 KNOXVILLE IA
2018-06-08 641-871-7XXX 7000–7999Assigned METROPCS, INC. 5562 KNOXVILLE IA
— 641-871-8XXX 8000–8999Available KNOXVILLE IA
2014-10-10 641-871-9XXX 9000–9999Assigned AUREON COMMUNICATIONS, LLC 444G KNOXVILLE 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.