NumberResearch Membership · Data 09/19/2026

Thousands-blocks in 203-252

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 203-252 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 203 blocks

Most active assignees, all time — NPA 203
OMNIPOINT COMMUNICATIONS, INC. - CT 5
NEW CINGULAR WIRELESS PCS, LLC - DC 2
CABLEVISION LIGHTPATH, INC. - CT 2
PAETEC ITEL, 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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2006-12-13 203-252-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 STAMFORD CT
2003-09-22 203-252-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 STAMFORD CT
2003-10-31 203-252-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J STAMFORD CT
2002-05-23 203-252-3XXX 3000–3999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2004-03-04 203-252-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 STAMFORD CT
2002-05-23 203-252-5XXX 5000–5999Assigned CABLEVISION LIGHTPATH, INC. - CT 4950 STAMFORD CT
2004-07-27 203-252-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 STAMFORD CT
2004-12-08 203-252-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 STAMFORD CT
2005-01-13 203-252-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS, INC. - CT 6624 STAMFORD CT
2007-01-18 203-252-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 STAMFORD CT

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.