AdSense placeholder
Paste your AdSense script + ad units in src/layout_bottom.php, then set $ads_enabled = true.
Home / Carriers / 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT

3 RIVERS TELEPHONE COOPERATIVE, INC. - MT

Operating Company Number (OCN): 3924

Browse states

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)

StateNPANXXRate centerOpen
MT 406 216 GREATFALLS Prefix
MT 406 271 CONRAD Prefix
MT 406 424 SHELBY Prefix
MT 406 440 HELENA 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

© 2026 Phone Directory.
Light theme (AdSense-ready).