Calling Vanuatu from the United States explained:

• 011 - US exit code; dial first for international calls made from the USA or Canada
• 678 - Country Code for Vanuatu
• Phone Number - 5 digits
• US to Vanuatu landlines international dialing format: 011 678 ?? ???

How to dial to Vanuatu cellular:

• dialing format for calls to a cell phone: 011 678 5?? ???? (or 7?? ????)

Phone Books:

• VATU.com - Vanuatu portal featuring White and Yellow Pages search