Marojahan
Posted
Very Good
When I have landing in one of other country, one sim card directly conect to local profider without timeless. Excellent service :)

Great
580 reviews
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 Consumer Courier, with an average rating of 4.0 out of 5.
Showing 326 reviews with 5 stars · Clear filters
Marojahan
Posted
When I have landing in one of other country, one sim card directly conect to local profider without timeless. Excellent service :)
Peter
Posted
I have used One Sim Card all around Europe and would not look any further than this company. I have had a great experience with this company for over 10 years and have turned my friends on to this company also. Great rates and coverage! I have the up most trust with One Sim Card. Thank you for all you do Pete
Yuksel
Posted
I've been using OneSimCard since 2012 and honestly this SIM is one of the best for calling long distances from almost every country and good money saver. I would recommend this SIM card, it works for me.
Martin
Posted
i am onesimcard customer like before 1 year or more and i like very much its very easy to operate and very nice quality
Rebecca
Posted
I used a OneSimCard for travel to South Africa and Zimbabwe. It made it easy to stay in touch with family at home and still manage the cost. I could choose how much to load on to the card and each time I made a call, it displayed the balance.
Sergio
Posted
I used OneSimCard in France and Spain in July an d recently in Orlando, FL. When I turned on the phone, it picked up a carrier at once the coverage was excellent in every place I went. I had to be careful with the apps that consume data and had to set them to download images and videos only with Wi-Fi. In that way My $25 charge lasted 2+ weeks.
Chuol
Posted
i like this sim for good
Julie W.
Posted
We have used other travel Sim cards but OneSIM is by far the best. It was easy to use and set up. Having the extra Australian number made it cheap to ring home. The phone and data worked well in the UK and a number of European countries. Just one trick is to reset your phones data settings when you return home and put in your normal card.