NumberResearchThousands-blocks in 801-506
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 801-506 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 801 blocks
Most active assignees, all time — NPA 801
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 801-506-0XXX | 0000–0999 | Reserved | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7176 | MURRAY | UT |
| — | 801-506-1XXX | 1000–1999 | Reserved | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7176 | MURRAY | UT |
| — | 801-506-2XXX | 2000–2999 | Reserved | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7176 | MURRAY | UT |
| 2006-11-03 | 801-506-3XXX | 3000–3999 | Assigned | FIRSTDIGITAL COMMUNICATIONS, LLC | 716D | MURRAY | UT |
| 2008-11-21 | 801-506-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - UT | 7530 | MURRAY | UT |
| 2009-09-16 | 801-506-5XXX | 5000–5999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7176 | MURRAY | UT |
| 2012-06-01 | 801-506-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - UT | 3231 | MURRAY | UT |
| — | 801-506-7XXX | 7000–7999 | Reserved | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7176 | MURRAY | UT |
| 2008-05-05 | 801-506-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - UT | 7530 | MURRAY | UT |
| — | 801-506-9XXX | 9000–9999 | Reserved | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7176 | MURRAY | UT |
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.