Phone number in Ohio: 440 Area code
Area code 440 serves the state of Ohio. This area code was assigned on March 12th, 1997. On August 16th, 1997 it went into service. 440 is a General Purpose Code. Dialing pattern for local calls within the same NPA (area code) is 7D. Carriers must provide permissive 1+10D dialing for Foreign NPA Local Calls in areas where they provide optional EAS