Calling Bangladesh from the United States explained:

• 011 - US exit code; dial first for international calls made from the USA or Canada
• 880 - Country Code for Bangladesh
• Phone Number (may not begin with 0):
  • fixed - 7 to 10 digits
  • cell phones - 8 to 10 digits
• sample call from US to a landline in Dhaka: 011 880 2 ??? ????

How to dial to Bangladesh cellular:

• dialing format for calls to a cell phone: 011 880 1? ??? ???(??)

Area Codes:

Phone Books:

• Bangladesh Yellow Pages