Calling Chad from the United States explained:

• 011 - US exit code; dial first for international calls made from the USA or Canada
• 235 - Country Code for Chad
• Phone Number - 8 digits, the first digit for landlines is 2
• US to Chad international dialing format: 011 235 ?? ?? ?? ??

How to dial to Chad cellular:

• dialing format for calls to a cell phone: 011 235 X? ?? ?? ??
• X can be 6, 7 or 9

Phone Books:

• Chad Phone Book

Updates:

• Chad telephone numbering changes - March 2010