Calling Germany from the United States explained:

• 011 - US exit code; dial first for international calls made from the USA or Canada
• 49 - Country Code for Germany
• Phone Number (may not begin with 0):
  • fixed - 5 to 12 digits, including area code
  • cell phones - 10 or 11 digits
• sample call from US to a landline in Frankfurt: 011 49 69 ???? ????

How to dial to Germany cellular:

• dialing format for calls to a cell phone: 011 49 1X ???? ????(?)
• 1X can be 15, 16 or 17

Area Codes:

Phone Books:

• Das Telefonbuch - German Phone Book, includes both residential and commercial listings, in German
• Gelbe Seiten - business directory, in German
• Infobel People Search