NumberResearchThousands-blocks in 480-636
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 480-636 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 480 blocks
Most active assignees, all time — NPA 480
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2004-07-07 | 480-636-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2003-09-12 | 480-636-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | PHOENIX | AZ |
| — | 480-636-2XXX | 2000–2999 | Reserved | TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | 7217 | PHOENIX | AZ |
| — | 480-636-3XXX | 3000–3999 | Reserved | TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | 7217 | PHOENIX | AZ |
| — | 480-636-4XXX | 4000–4999 | Reserved | TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | 7217 | PHOENIX | AZ |
| 2008-01-25 | 480-636-5XXX | 5000–5999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7175 | PHOENIX | AZ |
| 2008-01-29 | 480-636-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2003-09-12 | 480-636-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | PHOENIX | AZ |
| 2003-09-12 | 480-636-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | PHOENIX | AZ |
| 2005-07-27 | 480-636-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
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.