John
Handy To Have
This sim card is a handy feature to have when you travel with an unlocked smart cell phone. Easy to have a phone, no matter what country you are in.

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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John
This sim card is a handy feature to have when you travel with an unlocked smart cell phone. Easy to have a phone, no matter what country you are in.
Donald B.
My only complaint is that any unused balance expires after ten months.
Response from OneSimCardDec 21, 2016
Hello Donald, Thank you for your feedback! To prevent expiration of funds, you may choose to add a minimum recharge amount to extend the overall balance for another 10 months. Here is our full Expiration policy: OneSimCard SIM balance is valid for 10 months after the last recharge and will roll over to the next 10 month period with each recharge. When the balance expire, the SIM will stay active and could be used again by adding money to the SIM balance. The SIM phone number is valid for 2 years after the last outgoing call and extends for 2 years with each outgoing voice call made from the OneSimCard phone. You can see Terms and Conditions here: http://www.onesimcard.com/terms-of-use/ Thank you, OneSimCard
Robert A.
I purchased the sim card to use in my GSM ready phone in October 2016. As I live abroad, I have been using it to call relatives from home and also in my travels. It is very convenient, even if i feel the rates are overpriced. I have a European and a US number, that is fine, but since i live and travel in Africa extensively, i would love to have an African number. Kindly consider that in future. Thanks
Dennis
Works well in all advertised countries. Good cost savings travel accessory.
Mikelis B.
I have been using OneSimCard since 2008. It has provided excellent coverage in the locations I have visited (Europe, only), at reasonable prices. The cheap phone I purchased with the package died quite young, but I have successfully reused the SIM card in three other phones since then. With some phones there was an incompatibility problem which was nonetheless manageable by using the appropriate codes. The ability to access voice mail online is very handy. It would be nice if that were possible with text messages too. The call-back protocol is a bit awkward but usually has worked well. My only disappointment was when I purchased a local UK number for my SIM card, and discovered that it was not recognized as a local call by some UK mobile suppliers. Since I don't travel frequently, it's nice to keep the same number even after long periods of inactivity.
Rajivan
Must have for all travellers ! Calls are cheap!
Jack B.
I was connected to a chat helper very quickly. She was a great help in answering my questions
Eric B.
Great way to use your cellphone overseas. Price is relatively reasonable. Method to recharge is a bit "clunky" and not so easy when you're travelling.