NumberResearchThousands-blocks in 479-877
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026
The ten 1,000-number thousand-blocks inside prefix 479-877 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 479 blocks
Most active assignees, all time — NPA 479
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 479-877-0XXX | 0000–0999 | Reserved | T-MOBILE USA, INC. | 6529 | ROGERS | AR |
| 2016-09-19 | 479-877-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | ROGERS | AR |
| 2013-10-15 | 479-877-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR | 7277 | ROGERS | AR |
| 2007-04-10 | 479-877-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR | 7277 | ROGERS | AR |
| 2016-06-01 | 479-877-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | ROGERS | AR |
| 2017-06-30 | 479-877-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | ROGERS | AR |
| 2017-02-27 | 479-877-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | ROGERS | AR |
| 2015-02-02 | 479-877-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR | 7277 | ROGERS | AR |
| 2017-02-08 | 479-877-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | ROGERS | AR |
| 2006-10-24 | 479-877-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ROGERS | AR |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.