Calling Gabon from the United States explained:

• 011 - US exit code; dial first for international calls made from the USA or Canada
• 241 - Country Code for Gabon
• Phone Number - 7 digits for both landlines and cell phones
• sample call from US to a Gabon landline: 011 241 1 ?? ?? ??

How to dial to Gabon cellular:

• dialing format for calls to a cell phone: 011 241 X ?? ?? ??
• X can be 3, 4, 5, 6 or 7

Phone Books:

• Annuaire Gabon - search for companies and individuals, in French
• Africannuaire - business directory, in French

Updates:

• Gabon telephone numbering changes - June 2012