Area code 234 is an overlay area added to area code 330 on 30th November 2001 in order to keep up with increasing demands of telephone lines. It is located in United States covering Ohio State. Dialing code is mandatory for both these areas even while making local calls.
Origin of the code 330 and 234 is area code 216 - one of the original telephone codes created in 1947. Code 234 serves areas of Northeastern Ohio. Northeastern Ohio is distributed among total four area codes:
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