The main cities in Hawaii are:
Honolulu, Pearl City, Hilo, Waipahu and Kailua. Since it is not a very big state, Hawaii only has one area code which is 808.
The main airport in Hawaii is the Daniel K. Inouye International Airport, also known as Honolulu International airport
The main WhatsApp businesses in Hawaii are tourism, transportation and local services. You can contact all these businesses near you using WhatsApp.