NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 206-651

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 206-651 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 206 blocks

Most active assignees, all time — NPA 206
NEW CINGULAR WIRELESS PCS, LLC 4
BANDWIDTH.COM CLEC, LLC - WA 2
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WA 1
ELTOPIA COMMUNICATIONS, LLC - WA 1
ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2012-10-03 206-651-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DES MOINES WA
2010-06-11 206-651-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DES MOINES WA
2009-08-13 206-651-2XXX 2000–2999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 DES MOINES WA
2007-11-08 206-651-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WA 7274 DES MOINES WA
2009-01-05 206-651-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F DES MOINES WA
2009-01-05 206-651-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F DES MOINES WA
2007-09-26 206-651-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DES MOINES WA
2013-02-11 206-651-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J DES MOINES WA
2020-06-23 206-651-8XXX 8000–8999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D DES MOINES WA
— 206-651-9XXX 9000–9999Reserved NEW CINGULAR WIRELESS PCS, LLC 6010 DES MOINES WA

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.