Mililani, Hawaii Area Code

Mililani, HI is officially utilizing one area code which is area code 808.

In addition to Mililani, HI area code information read more about area code 808 details and Hawaii area codes.

Mililani, HI is located in Honolulu County and observes the Hawaii-Aleutian Time Zone and does not use daylight saving time. View our Times by Area Code tool.