513-778 Prefix — Cincinnati, Ohio

Phone numbers starting with 513-778 are based in Cincinnati, Ohio, primarily served by Onvoy Spectrum, LLC.

Recently looked-up numbers in 513-778

• 513-778-6767
• 513-778-0332

More about this region

Area code 513 directory · About area code 513 · Get a OH phone number

Last updated: April 22, 2026