AdSense placeholder
Paste your AdSense script + ad units in src/layout_bottom.php, then set $ads_enabled = true.
Home / Carriers / NORTHERN IOWA TELEPHONE CO.

NORTHERN IOWA TELEPHONE CO.

Operating Company Number (OCN): 1259

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
IA 712 479 LITTLEROCK Prefix
IA 712 567 MAURICE Prefix
IA 712 727 GRANVILLE Prefix
IA 712 729 SANBORN Prefix
IA 712 738 MATLOCK Prefix
IA 712 947 HINTON Prefix
MN 507 394 NOLTL ROCK 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).