NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 425-898

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 425-898 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 425 blocks

Most active assignees, all time — NPA 425
ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 5
NEW CINGULAR WIRELESS PCS, LLC 1
LEVEL 3 TELECOM OF WASHINGTON, 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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
— 425-898-0XXX 0000–0999Reserved ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 4324 KIRKLAND WA
— 425-898-1XXX 1000–1999Reserved ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 4324 KIRKLAND WA
2008-10-24 425-898-2XXX 2000–2999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 KIRKLAND WA
2013-03-06 425-898-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KIRKLAND WA
2006-10-20 425-898-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J KIRKLAND WA
2012-09-26 425-898-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF WASHINGTON, LLC - WA 7455 KIRKLAND WA
2020-06-24 425-898-6XXX 6000–6999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D KIRKLAND WA
— 425-898-7XXX 7000–7999Reserved ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 4324 KIRKLAND WA
— 425-898-8XXX 8000–8999Reserved ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 4324 KIRKLAND WA
— 425-898-9XXX 9000–9999Reserved ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 4324 KIRKLAND 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.