Calling Liechtenstein from the United States explained:

• 011 - US exit code; dial first for international calls made from the USA or Canada
• 423 - Country Code for Liechtenstein
• Phone Number - 7 digits
• US to Liechtenstein international dialing format: 011 423 ??? ????

How to dial to Liechtenstein cellular:

• dialing format for calls to a cell phone: 011 423 7?? ????

Phone Books:

• Swiss White and Yellow Pages - enter "Liechtenstein" or "FL" for location