1. A telephone number that can be called without paying anything

Encyclopedia: Freephone

• adust
• advance
• advance death benefit
• advanced
• advanced level
• Advanced Research and Development Activity
• advancement
• advancer
• advancing
• advantage
• advantageous
• advantageously
• advantageousness
• advect
• advection
• advective
• advent
• Advent Sunday
• Adventism
• Adventist
• adventitia
• adventitial
• adventitious
• adventitious root
• adventive