NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 772-228

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 772-228 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 772 blocks

Most active assignees, all time — NPA 772
LEVEL 3 COMMUNICATIONS, LLC - FL 2
BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 2
BANDWIDTH.COM CLEC, LLC - FL 2
METROPCS, INC. 1
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - 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
2020-11-25 772-228-0XXX 0000–0999Assigned METROPCS, INC. 5562 SEBASTIAN FL
2015-04-27 772-228-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E SEBASTIAN FL
2011-08-03 772-228-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SEBASTIAN FL
2004-09-15 772-228-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 SEBASTIAN FL
2006-08-24 772-228-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - FL 982E SEBASTIAN FL
2012-09-28 772-228-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF FLORIDA, LP - FL 7635 SEBASTIAN FL
2008-01-21 772-228-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SEBASTIAN FL
— 772-228-7XXX 7000–7999Reserved BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 SEBASTIAN FL
2010-06-07 772-228-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J SEBASTIAN FL
— 772-228-9XXX 9000–9999Reserved BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 SEBASTIAN 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.