Bryan
Great Sim Card
Great Sim Card

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.
Is this your business?
Correct your details and reply to customers in public. Both are free.
Claim this listingShowing 326 reviews with 5 stars · Clear filters
Bryan
Great Sim Card
Gordon
When my daughter went away for Denmark to study abroad for a year, I looked for all sorts of options and sending a US based cell phone was unaffordable. I found OneSimcard and with an old flip phone found on eBay, it worked great. The PEN was a god send and made it easy for us to stay in touch. Since then, I have travelled all over Europe including Russia, the Baltic, Italy, the UK , Mexico and the Caribbean and never had a problem. I highly recommend this as an affordable option for any international travel and having the US based PEN is a great option!!
Navarro E.
It's a very eccellent friend for your travel...it's fidelity is true...You will not have any problems with it
Yoav C.
This has been the only one sim card that I have been using when travelling abroad. Not only is the pricing one of the best out there, it also provides an option for VOIP cutting costs even more when making calls. This is especially great if you only have one sim card slot in the phone and can use the app to make and receive calls. Programmes, such as recommend a friend also makes it even more cost effective. I like the fact that inbound calls and text messages are not charged (at least when I am travelling to countries in which have an agreement). I would highly recommend this card. Great programme and great backend support.
Peter
I have been travelling overseas for many years, primarily to Japan and until discovering OneSimCard went without effective mobile communication. Since purchasing OneSimCard 3 years ago I use it whenever I travel and it has proven to be a perfect solution for my mobile communication. It works well, it is value for money and any problems are quickly resolved. Suffice to say I wouldn't be without it.
Neil W.
I first bought one-sim card when I lived in Bermuda where telephony was outrageously expensive. I travel a lot for my business and one-sim enables me to give local call numbers to clients, colleagues and friends with the use of PEN numbers. Now been using for three years and found it really good value for money.
Philippe
I had a Europe card with 2GB of data. Saved my life (kind of) on a ship where there was no wifi but IO could access cellular in or close of ports of call.
Geoffrey
Connect world never be that easier