NumberResearchThousands-blocks in 850-745
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 850-745 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 850 blocks
Most active assignees, all time — NPA 850
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2006-01-30 | 850-745-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | CRAWFORDVL | FL |
| 2020-11-10 | 850-745-1XXX | 1000–1999 | Assigned | ONVOY, LLC - FL | 937C | CRAWFORDVL | FL |
| 2008-02-04 | 850-745-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | CRAWFORDVL | FL |
| 2009-02-10 | 850-745-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CRAWFORDVL | FL |
| 2011-04-01 | 850-745-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - FL | 982E | CRAWFORDVL | FL |
| 2010-06-03 | 850-745-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - FL | 982E | CRAWFORDVL | FL |
| 2011-08-30 | 850-745-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | CRAWFORDVL | FL |
| 2009-05-01 | 850-745-7XXX | 7000–7999 | Assigned | CENTURYLINK OF FLORIDA, INC. (CENTRAL) | 0340 | CRAWFORDVL | FL |
| 2006-10-12 | 850-745-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | CRAWFORDVL | FL |
| 2024-08-07 | 850-745-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CRAWFORDVL | FL |
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.