Thousands-blocks in 505-209

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 505-209 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 505 blocks

Most active assignees, all time — NPA 505

ONVOY, LLC - NM 3

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 2

T-MOBILE USA, INC. 1

PEERLESS NETWORK OF NEW MEXICO, LLC - NM 1

LEVEL 3 COMMUNICATIONS, LLC - NM 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
2013-03-01	505-209-0XXX	0000–0999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM	6573	GRANTS	NM
2013-03-01	505-209-1XXX	1000–1999	Assigned	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM	6573	GRANTS	NM
2016-02-16	505-209-2XXX	2000–2999	Assigned	ONVOY, LLC - NM	206F	GRANTS	NM
2013-11-14	505-209-3XXX	3000–3999	Assigned	BANDWIDTH.COM CLEC, LLC - NM	123F	GRANTS	NM
2014-09-30	505-209-4XXX	4000–4999	Assigned	LEVEL 3 COMMUNICATIONS, LLC - NM	5470	GRANTS	NM
2013-10-14	505-209-5XXX	5000–5999	Assigned	T-MOBILE USA, INC.	6529	GRANTS	NM
2016-01-22	505-209-6XXX	6000–6999	Assigned	CENTURYLINK COMMUNICATIONS, LLC	508J	GRANTS	NM
2013-08-19	505-209-7XXX	7000–7999	Assigned	ONVOY, LLC - NM	206F	GRANTS	NM
2016-02-16	505-209-8XXX	8000–8999	Assigned	ONVOY, LLC - NM	206F	GRANTS	NM
2015-02-10	505-209-9XXX	9000–9999	Assigned	PEERLESS NETWORK OF NEW MEXICO, LLC - NM	377H	GRANTS	NM

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.