Mari L.
Did not work during my trip to Hurghada
Did not work during my trip to Hurghada. Spoke to a few customer service agents with one agent questioning my honesty. Really? I never been more insulted in my entire life.

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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Mari L.
Did not work during my trip to Hurghada. Spoke to a few customer service agents with one agent questioning my honesty. Really? I never been more insulted in my entire life.
Beki A.
Clunky website and I haven’t got a cheap option to just get more credit for calls whilst in Jamaica.
Donna
horrible service. in their description, it states: USA Phone Number for 2 step SMS verifications and alarms from PayPal, Banks and financial institutions. However, after purchase, it can not receive txt code from etoro at all. ( etoro is just a normal financial institution). and I checked on phonevalidator website, the phone number they provide is a VOIP number! who would pay 79 dollars for a VOIP number?! google voice is free! Not as described and way over priced! update after seeing company's reply: this company is really shameless liar. 1. check on phonevalidator by yourself, potential buyers~ the number they gave me is 1-470-220-2502. It says loud and clear, it's a VOIP number! ( I would have upload a photo, but this trustpilot won't let me. so pls check by yourself, guys) 2. the company claims that I've used this number for other service, that a bloody lie! I have not received a single txt code with this number at all!!! 3. the company says I'm welcomed to contact them. the truth is when I start asking business name and business address to prepare my legal actions, they stopped replying! This shameless company charge me 79 dollars for a VOIP number which should be totally free and lied about everything!
Response from OneSimCardAug 25, 2020
Hello Donna, The OneSimCard USA Number for Bank Institutions is designed to work with the major US banking institutions and major banking service providers common in the USA. We cannot guarantee that the mechanism will work with all institutions worldwide. We can see that the product worked just fine for you with other institutions. Enough for you to make a second purchase of an additional number. The number we provide is indeed a real mobile number, which is then forwarded to you either via email, by SMS, or with our own VoIP application for iPhone and Android. We do indeed use a VoIP system to forward the messages if you choose, but the numbers are real and work with most major banks. We cannot speak for what any third party has to say about our technology as it is rather unique. The price of this service is representative of the costs involved in producing this product. Unlike Google Voice (which is VoIP and does not work with 2 Step Verification), we use real US mobile phone numbers which have associated costs. This price did not seem to prevent you from using the service or purchasing a second number. While we understand you could not use the product for this specific service, we are welcoming of you to contact us so we can look into thing deeper and discuss any issues you have with our products. We don't see any record of you reaching out for assistance or support. OneSimCard Support
MoK
Horrible experience! -Customer service is functioning more like a robot in a defensive stance! There is no human effort to understand the customer situation, and rather just push the blame back onto the customer and make him pay additional fees! - 1st sim card ordered was sent to my US mail forwarding address, after which, it got lost in transit and never received (initial outbreak of COVID-19). This is not a fault of OneSimCard of course. BUT, when I contacted them and explained the situation, I received a useless reply saying" your shipment has been delivered"! Obviously, there was no "customer care" or any attempt to understand the situation! I was not even given the option to pay for a replacement sim card. - I had to order a completely new sim card, which was supposed to have banking SMS service enabled. The card I received did not have that. And when I contacted customer support again, I had to purchase additional - OneSimCard is continuously trying to charge me monthly for the lost sim card that was never received nor activated. And no action whatsoever was taken by customer service to fix the situation, even after contacting them twice about the sim card being lost! - Another observation is how outdated the website and user interfaces are. Information on the website and sim-management pages is not clear and extremely non-user-friendly! The system look and functionality is very 1990's! - If I could push back time, I would not have spent a single penny for this crappy level of customer service!
Patrick S.
Works great once I figured it out. Bought sim card thinking to use it for bank verification. Figured out I needed to then get a us bank verification PEN after registration. Then I could receive SMS messages but could not respond. Figured out I had to receive and send through Voip app not through messages and it works great. Thanks. Customer support was patient with me and had me up and running in no time flat.
Diego
It just fulfills what they promise
Dane
The number that I was given was to be used as a bank verification number. However, when I attempted to use it the bank said it could not accept the number as it was not an actual landline or sim.
Mercedes R.
This company is great! So helpful and nice.