Calling Romania from the United States explained:

• 011 - US exit code; dial first for international calls made from the USA or Canada
• 40 - Country Code for Romania
• Phone Number (may not begin with 0):
  • landlines and VoIP lines - 9 digits with area code (first digit for VoIP area codes is 3 instead of 2)
  • cell phones - 9 digits, first digit is 7
• sample call from US to a landline in Bucharest: 011 40 21 ??? ????

How to dial to Romania cellular:

• dialing format for calls to a cell phone: 011 40 7?? ??? ???

Area Codes:

Phone Books:

• Romanian Yellow Pages - in Romanian