Quickly find business customer service phone numbers

All OneSimCard support phone numbers are listed below, including customer service phone number(s), support phone number(s), support phone number(s), support phone number(s), etc. You can also get OneSimCard support via email, social networks, help center, or directly check all the customer service contacts of OneSimCard.
Customer Service number
(US and World)
+1 800 640 2113
Customer Service number
(US and World)
+1 617 313 8888
Customer Service number
(Australia)
+6 128 310 7337

OneSimCard Overview

OneSimCard® is a mobile roaming service for international travelers that greatly reduces the cost of using mobile devices when traveling abroad. By simply inserting our international SIM card into any unlocked GSM phone, tablet or other mobile device, OneSimCard saves travelers an average of 85% over domestic wireless carriers'​ international roaming rates. As recommended by The Washington Post, New York Times, PC Mag, Toronto Star, Time/CNN, Boston Globe, Chicago Tribune, and more. Service highlights include: - Free incoming calls in over 160 countries - Outgoing calls from only $0.25 per minute - Free incoming SMS text messages everywhere - Mobile Internet data service in over 170 countries, data in Europe (EU) for as low as $0.01 per MB - Corporate Account management system for businesses of all sizes to manage any number of traveling employees - SIM comes with both a European and U.S. number - Add local or toll free phone numbers in many countries including USA, Canada, UK, Australia, Brazil, France, Hong Kong, Israel, Italy, Japan, Malaysia, Mexico, South Africa and Spain OneSimCard is a division of Belmont Telecom, Inc., a licensed U.S. interexchange carrier (IXC) providing telecommunications services since 1994.
Industry Telecommunications
Headquarters Belmont, MA
Company size 11-50 employees
Website http://www.onesimcard.com

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