NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 863-263

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 863-263 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
NEW CINGULAR WIRELESS PCS, LLC - GA 3
TERRA NOVA TELECOM, INC. - FL 2
TELEPORT COMMUNICATIONS AMERICA, LLC - FL 1
MCI WORLDCOM COMMUNICATIONS, INC. - FL 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 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
2023-01-23 863-263-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E ARCADIA FL
2023-01-19 863-263-1XXX 1000–1999Assigned TERRA NOVA TELECOM, INC. - FL 382G ARCADIA FL
2023-09-27 863-263-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 ARCADIA FL
2007-03-23 863-263-3XXX 3000–3999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 ARCADIA FL
2012-01-19 863-263-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ARCADIA FL
2012-01-19 863-263-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ARCADIA FL
2022-07-06 863-263-6XXX 6000–6999Assigned TERRA NOVA TELECOM, INC. - FL 382G ARCADIA FL
2013-08-15 863-263-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ARCADIA FL
2007-04-13 863-263-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 ARCADIA FL
— 863-263-9XXX 9000–9999Reserved TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 ARCADIA 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.