OCN 9321 — Ameritech Ohio

Operating Company Number (OCN) 9321 identifies Ameritech Ohio in North American telephone routing records.

Area codes with Ameritech Ohio numbers

• 937 (5)
• 330 (3)
• 614 (2)
• 740 (1)

More

Reverse phone lookup · Browse all area codes

Last updated: April 4, 2026