Area code 330 was created on 9th March 1996 when area code 216 got split. The area code is serving Northeast Ohio, United States. Later on, code 234 was added as an overlay to code 330 on 30th October 2000.
Areas get densely populated with the passage of time and so the needs of citizens increase as well. In order to facilitate citizens, existing areas are split into newer ones. Major reason behind area split is increasing demands for telephone lines. People need more than one telephone connections at their offices and even at homes.
Areas are split and are assigned with new code so that to provide maximum combinations of telephone numbers. Existing and newly created areas always have unique codes. By doing so, area code of the telephone number will always be unique. However telephone number can be repeated with different code. Ten digit dialing becomes must even while making local calls. Number of codes increases as the users of landline or wireless phones increase.
Northeastern Ohio - located in Ohio, state of United States is served by four codes together:
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