NumberResearchThousands-blocks in 225-271
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
The ten 1,000-number thousand-blocks inside prefix 225-271 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 225 blocks
Most active assignees, all time — NPA 225
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 225-271-0XXX | 0000–0999 | Reserved | PAETEC ITEL, LLC | 829J | DENHAM SPG | LA |
| 2008-01-31 | 225-271-1XXX | 1000–1999 | Assigned | ADVANCED TEL., INC. - LA | 8839 | DENHAM SPG | LA |
| 2007-02-05 | 225-271-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - LA | 8764 | DENHAM SPG | LA |
| 2007-12-20 | 225-271-3XXX | 3000–3999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | DENHAM SPG | LA |
| 2004-06-28 | 225-271-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | DENHAM SPG | LA |
| 2010-03-19 | 225-271-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - LA | 153F | DENHAM SPG | LA |
| 2012-06-01 | 225-271-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS LLC - LA | 7637 | DENHAM SPG | LA |
| 2014-05-15 | 225-271-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | DENHAM SPG | LA |
| 2008-06-23 | 225-271-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | DENHAM SPG | LA |
| — | 225-271-9XXX | 9000–9999 | Reserved | PAETEC ITEL, LLC | 829J | DENHAM SPG | LA |
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.