Thousands-blocks in 541-418

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 541-418 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 541 blocks

Most active assignees, all time — NPA 541

METROPCS, INC. 4

LEVEL 3 COMMUNICATIONS, LLC - OR 2

TELEPORT COMMUNICATIONS AMERICA, LLC - OR 1

T-MOBILE USA, INC. 1

CHARTER IP ENABLED SERVICES, 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

Recent thousands-block assignments
Assigned	Thousands-block	Last 4 digits	Status	Assignee	OCN	Rate center	State
—	541-418-0XXX	0000–0999	Reserved	LEVEL 3 COMMUNICATIONS, LLC - OR	3234	LINCOLN CY	OR
2006-06-09	541-418-1XXX	1000–1999	Assigned	METROPCS, INC.	5562	LINCOLN CY	OR
2006-06-09	541-418-2XXX	2000–2999	Assigned	METROPCS, INC.	5562	LINCOLN CY	OR
2011-07-14	541-418-3XXX	3000–3999	Assigned	METROPCS, INC.	5562	LINCOLN CY	OR
2005-01-27	541-418-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - OR	3234	LINCOLN CY	OR
2016-03-15	541-418-5XXX	5000–5999	Assigned	CHARTER IP ENABLED SERVICES, LLC	792K	LINCOLN CY	OR
2012-12-13	541-418-6XXX	6000–6999	Assigned	TELEPORT COMMUNICATIONS AMERICA, LLC - OR	7531	LINCOLN CY	OR
2016-04-15	541-418-7XXX	7000–7999	Assigned	METROPCS, INC.	5562	LINCOLN CY	OR
2025-04-08	541-418-8XXX	8000–8999	Assigned	T-MOBILE USA, INC.	6529	LINCOLN CY	OR
—	541-418-9XXX	9000–9999	Assigned (pending)			LINCOLN CY	OR

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.