Calling Haiti from the United States explained:

• 011 - US exit code; dial first for international calls made from the USA or Canada
• 509 - Country Code for Haiti
• Phone Number - 8 digits, first digit for landlines is 2
• sample call from US to a landline in Haiti: 011 509 2??? ????

How to dial to Haiti cellular:

• dialing format for calls to a cell phone: 011 509 3??? ???? (or 4??? ????)

Phone Books:

• PagesPro.ht - business directory