Calling Curacao from the United States explained:

• 011 - US exit code; dial first for international calls made from the USA or Canada
• 599 - Country Code for Curacao
• Phone Number (may not begin with 0) - 8 digits
• US to Curacao international dialing format: 011 599 9 ??? ????

Area Codes:

• area code 9 (nine) for landlines and cell phones in the capital Willemstad and all other places on the island

Phone Books:

• Caribbean Yellow Pages of Curacao - business directory