Johnston, Iowa
Central Time Zone (UTC-6) · IA · —
About Area Codes in Johnston, Iowa
Johnston, Iowa is served by area code 515, which was one of the original area codes established in 1947 under the North American Numbering Plan. The city falls within the Central time zone (UTC-6). All calls to and from Johnston use the 515 area code prefix for local and long-distance dialing.
Other cities in area code 515
Frequently Asked Questions
What area code is Johnston, Iowa?
Johnston, Iowa uses area code 515.
What time zone is Johnston in?
Johnston is in the Central time zone (UTC-6).
Do I need to dial 10 digits when calling Johnston?
Standard 7-digit dialing is used for local calls within Johnston. However, 10-digit dialing is always accepted and required for long-distance calls.
When was area code 515 created?
Area code 515 is one of the original 86 area codes established in 1947 as part of the North American Numbering Plan (NANP).
What cities share area code 515 with Johnston?
Other cities sharing area code 515 with Johnston include Altoona, Ames, Ankeny, Clive, Des Moines, among others.
Also called Johnston:
Johnston, IA · Central Time Zone