NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 863-837

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 863-837 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 863 blocks

Most active assignees, all time — NPA 863
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 3
TELEPORT COMMUNICATIONS AMERICA, LLC - FL 1
PAETEC ITEL, LLC 1
ONVOY, LLC - FL 1
NEW CINGULAR WIRELESS PCS, LLC - GA 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
2009-10-12 863-837-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WINTER HVN FL
— 863-837-1XXX 1000–1999Reserved TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 WINTER HVN FL
2004-02-09 863-837-2XXX 2000–2999Assigned LINGO TELECOM, LLC 3840 WINTER HVN FL
2007-05-07 863-837-3XXX 3000–3999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 WINTER HVN FL
2014-12-09 863-837-4XXX 4000–4999Assigned ONVOY, LLC - FL 937C WINTER HVN FL
2010-07-28 863-837-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J WINTER HVN FL
2018-12-28 863-837-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINTER HVN FL
2011-03-07 863-837-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D WINTER HVN FL
2009-09-08 863-837-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WINTER HVN FL
2009-12-07 863-837-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WINTER HVN FL

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.