NumberResearchThousands-blocks in 801-937
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 801-937 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
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 801-937-0XXX | 0000–0999 | Reserved | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MIDVALE | UT |
| 2004-07-19 | 801-937-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MIDVALE | UT |
| 2004-07-19 | 801-937-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MIDVALE | UT |
| 2002-02-15 | 801-937-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - UT | 7530 | MIDVALE | UT |
| 2002-12-16 | 801-937-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - UT | 3231 | MIDVALE | UT |
| 2004-10-01 | 801-937-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MIDVALE | UT |
| 2003-08-08 | 801-937-6XXX | 6000–6999 | Assigned | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7176 | MIDVALE | UT |
| — | 801-937-7XXX | 7000–7999 | Reserved | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MIDVALE | UT |
| — | 801-937-8XXX | 8000–8999 | Reserved | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MIDVALE | UT |
| 2009-03-24 | 801-937-9XXX | 9000–9999 | Assigned | FIRSTDIGITAL COMMUNICATIONS, LLC | 716D | MIDVALE | 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.