Mark S.
SMS service is invaluable for expats
SMS service is invaluable for expats. Pricing options & plans are presented somewhat confusingly on website.

OneSimCard.com provides inexpensive international mobile connectivity for travelers, businesses, and connected devices, helping customers stay connected wherever their journeys or operations take them. A service of Belmont Telecom, Inc., OneSimCard combines telecommunications experience with practical solutions designed to simplify global communications and help customers manage their connectivity costs. We've been helping our customers stay connected for over 30 years.Our services include international eSIMs and physical SIM cards, prepaid mobile data plans, voice and text options, and corporate mobile solutions. Travelers can choose connectivity that fits their destinations, devices, and usage needs, with convenient online account management and recharging. Our OneSim VoIP app provides additional calling and messaging options over an internet connection.For businesses, OneSimCard also offers IoT and M2M connectivity for applications such as asset tracking, fleet management, connected equipment, and remote monitoring. Flexible connectivity options and SIM management tools help organizations support deployments ranging from a handful of devices to larger international operations.Supporting our customers is central to everything we do. We understand that selecting a service is only the beginning: customers also need clear guidance, straightforward setup instructions, and knowledgeable assistance when questions arise. Our team helps customers navigate product choices, activation, account management, and technical troubleshooting, supported by online resources and direct customer support.Whether you are planning an overseas vacation, keeping employees connected abroad, or managing devices across borders, our goal is the same: to make international connectivity easier to understand, simpler to manage, and backed by people committed to helping you succeed.
OneSimCard (onesimcard.com) has 580 customer reviews on Five Star Index, with an average rating of 4.0 out of 5.
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Mark S.
SMS service is invaluable for expats. Pricing options & plans are presented somewhat confusingly on website.
Mahomed K.
Thank you for the prompt delivery
Ann-Marie H.
Received my sim the next day. I did need to contact tech support as my card did not recognize the network when i installed it in my phone. Very helpful technician had me sorted in no time.
Charles
The instructions are complicated, but once you get it right everything works as advertised.
Lacey D.
great customer service
Response from OneSimCardFeb 13, 2020
Thank you for the review! We hope you are currently still enjoying our product and services. Safe travels, OneSimCard
Brandon S.
Works as advertised
Response from OneSimCardDec 26, 2019
We are glad to hear our product and service is working as expected. Thank you and safe travels!
Joyce D.
I had a reasonably good experience with this sim card as a solution for traveling but make sure you know what you are doing before you go abroad. I was only able to be successful because my partner knew how to exchange sim cards and get things going. We had some hiccups but the onesimcard support system was excellent.
Chris
I have used the OneSimCard for over 3 years. I use it for International Travel to areas that my domestic phone will not work. It took a bit of getting used to how it worked, but the support staff was very patient in getting me started. I am excited about the new Universal Sim Card as it will allow direct dial. I have already ordered it. I find it to be a great way for me to have an affordable way to call and text as I travel. If the Universal Card works as well as they say, I would change this to 5 stars.
Response from OneSimCardOct 10, 2018
Hello Chris, Thank you for your review! We are happy to hear we have great support staff that continues to assist our customers worldwide and that we can introduce a service that will make the small things like eliminating callback more user friendly. Thank you again for being a OneSimCard user. Happy Travels, OneSimCard