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MCLEODUSA TELECOMMUNICATIONS SERVICES, INC.- CO
Operating Company Number (OCN): 4788
Is this carrier legit?
Carriers are telecom operating companies that own number blocks (NPA-NXX). A number showing this carrier does not guarantee the caller is that company — scam calls can spoof caller ID.
Ad Unit
Optional ad placement.Number blocks (sample)
| State | NPA | NXX | Rate center | Open |
|---|---|---|---|---|
| CO | 303 | 532 | LONGMONT | Prefix |
| CO | 719 | 219 | COLORDOSPG | Prefix |
| CO | 719 | 283 | PUEBLO | Prefix |
| CO | 719 | 302 | COLORDOSPG | Prefix |
| CO | 719 | 404 | PUEBLO | Prefix |
| CO | 720 | 213 | DENVER | Prefix |
| CO | 720 | 214 | DENVER | Prefix |
| CO | 720 | 274 | DENVER | Prefix |
| CO | 720 | 409 | DENVER | Prefix |
| CO | 720 | 454 | DENVER | Prefix |
| CO | 720 | 550 | DENVER | Prefix |
| CO | 720 | 625 | DENVER | Prefix |
| CO | 720 | 644 | DENVER | Prefix |
| CO | 720 | 709 | DENVER | Prefix |
| CO | 970 | 475 | GREELEY | Prefix |
| CO | 970 | 530 | FT COLLINS | Prefix |
| CO | 970 | 578 | JOHNSTMLKN | Prefix |
| CO | 970 | 612 | LOVELAND | Prefix |
Showing up to 2,000 blocks (cap for performance).
SEO keywords covered
carrier lookup • operating company number • ocn lookup • who owns this number • npa nxx • rate center
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