Sandra R.
Excelent help
Chris was wonderful and patient answering my questions and clarifying the features of y phone and 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.
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Sandra R.
Chris was wonderful and patient answering my questions and clarifying the features of y phone and SIM card.
Shinya
Send SIM card is Very quickly. Thanks !
Gayle
I got the OneSimCard and purchased the unlimited roaming service so that I could use Google Maps while I was in Paris. I was pleased with the service which also allowed texting. The OneSimCard number was run through another country. This limited the ability of someone I expected to communicate with because their service (with Orange in France) did not permit communication with that country. I was able to send texts to them, they just could not respond.
Alan
great card, easy set up and outstanding customer care service
Michael
Very complicated procedure with unknown outcomes to making selections. I had to make lots of calls to find out what wasn't readily available, or unclear in the vast terminology of instructions. Phone did not work in my location in US to test if settings were right before leaving for trip. When arriving overseas could not get phone to work and had to make multiple calls to One Sim to discover details of making calls that were not told to me before hand.
Robert
Website could be more detailed on what you are getting and how things actually work. Takes awhile to understand what each option can do for you.
ALEXANDER
I arrived in Frankfurt & no idea how to use my phone , called tech. support got the help i needed A. Mauritz
Leo M. S.
Despite paying extra on a Thursday to have my card shipped to me overnight there was an unexplained delay from FedEx. The card did not arrived prior to my airline departure on the following Monday morning. As a consequence I will not be able to use the card for another 90 days, thus the title for the review, because I could have probably walked across the country in less time that it is going to take for me to simply activate the card. Bottom line is if have not even had an opportunity to use the service. I'm giving it a 1 star rating now, as I suspect there will be some sort of issue and some money lost by me as I will be delaying the activation of the service for some time. Sorry, a one star rating it is. On the other hand, if this AUTOMATED service has the smarts to send me another opportunity to rate the OneSim in the next 6 months I'd be happy to add comments that are less skewed.