The 220 area code, a relatively recent addition to Ohio's telecommunication system, plays a crucial role in addressing the state's expanding communication needs.

Implementation and Purpose: The 220 area code was introduced as an overlay to the existing 740 area code in Ohio. It was implemented on April 22, 2015, to provide additional numbering resources and to cater to the growing demand for telephone numbers in the region. This overlay approach allowed for a seamless integration without requiring existing 740 users to change their numbers.

Geographical Coverage: The 220 area code covers a significant portion of southeastern and central Ohio, including parts of Columbus. It encompasses many smaller communities and rural areas, reflecting the diversity of Ohio's geographical and demographic landscape. This wide coverage ensures that both urban and rural regions have sufficient numbering capacity to support their communication needs.

Ten-Digit Dialing Requirement: With the introduction of the 220 area code as an overlay, ten-digit dialing became mandatory for local calls within this area. This change meant that callers had to dial the area code followed by the seven-digit local number, even for local calls. This shift marked a significant adaptation in dialing practices for residents and businesses in the affected areas, aligning with a nationwide trend towards ten-digit dialing in regions with overlay area codes.

These facts about the 220 area code highlight its role in modernizing and expanding Ohio's telecommunication infrastructure. By providing additional numbering capacity and adapting to changing dialing practices, the 220 area code ensures that Ohio's communication needs are met efficiently and effectively.