NumberResearch Membership · Data 09/19/2026

Thousands-blocks in 224-813

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 224-813 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 224 blocks

Most active assignees, all time — NPA 224
CENTURYLINK COMMUNICATIONS, LLC 4
NEW CINGULAR WIRELESS PCS, LLC - IL 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 2
T-MOBILE USA, INC. 1
ONVOY, 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
2013-07-10 224-813-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DEERFIELD IL
2016-04-04 224-813-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DEERFIELD IL
2016-08-15 224-813-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DEERFIELD IL
2013-07-11 224-813-3XXX 3000–3999Assigned ONVOY, LLC 224C DEERFIELD IL
2014-11-03 224-813-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DEERFIELD IL
2014-07-10 224-813-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DEERFIELD IL
2014-07-10 224-813-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DEERFIELD IL
2014-06-10 224-813-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DEERFIELD IL
2013-06-06 224-813-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DEERFIELD IL
2013-09-25 224-813-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DEERFIELD IL

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.