A prepaid US SIM card
Get connected in 4G LTE


See against what are the main benefits to purchase a prepaid US sim card.

Get ready before your trip
No extra free
Local carrier
Ship worldwide

Included in all our prepaid plans

See in details what are included in each of our prepaid plans.


Internet Data in 4G LTE included in all plans.

Calls & Texts

Unlimited Calls & Texts within USA and to worldwide in some plans.

30 days

All plans are valid 30 days upon activation.

Five prepaid plans

See our ready to activate prepaid plans. Calls & texts are always unlimited within United-States.


T-Mobile Network


Unlimited calls & texts

from USA to worldwide

2GB | 5GB | 15GB Data

in 4G

AT&T Network


Unlimited calls & texts

within USA, Canada & Mexico

8GB or Unlimited Data

in 4G

 &  included

T-Mobile Network

$90 Incl. VAT

Unlimited calls & texts

within USA, Canada & Mexico

Unlimited Data

in 4G

 &  included


Frequently Asked Questions – Read below the answers to our popular questions.

Is my phone need to be unlocked / sim free?

Yes, your phone needs to accept a sim card from another carrier than your current one. The fastest way to know it is to insert a sim card from another carrier. If the network shows up, your phone is unlocked.

If you bought your phone in a shop and not with your carrier, it is more than likely to be unlocked already.

If you bought your phone with your carrier you may need to contact him directly.

Is my phone compatible with 4G LTE in USA?

High-hend and new smartphones are most likely to at least connect in 3G H+. iPhone 6 and onwards models will connect in 4G LTE.

Android smartphones exist in a wide range of models. You can use our new online Phone Compatibility Check. You will need to know the variant of your phone.

Do you offer eSIM Plans? ⚡

Yes we do! Check out our Flexiroam USA & Canada plans as well as our Flexiroam World plans for Global Data in more than 160 countries.

eSIM is available for compatible devices with embedded sim card. Eg: iPhone XS/XR, iPad Pro, Google Pixel 2 & 3.

Can I call and receive calls using my personal number?

Yes as an option. Using our sim usa VoIP app you can call worldwide using your personal number.

To receive calls, this is another option called “Call Forward”. You will receive a temporary landline or mobile number (from your country) so you can forward your current personal number to this temporary number. Then it will forward automatically all incoming calls to your phone. There is no extra cost for you or for the caller. You have to contact your current carrier to know how to activate call forwarding as it might incur a fee. Please note only calls are forwarded. No text.

Can I keep receiving my texts?

Texts cannot be forwarded. This is a technical limitation. You will need a second phone to insert your home sim to receive your texts from your home number.

What are the coverage differences between T-Mobile & AT&T?

In term of internet speed and coverage T-Mobile & AT&T are almost identical. In some rural areas, one carrier will have coverage while the other one not.

It is actually more important to check your phone compatibility as one model can only be compatible with one carrier.

We also suggest you to check opensignal.com for better comparison state by state between carriers.

What is the roaming option in Canada & Mexico?

This option is only available on T-Mobile and AT&T plans. Your Data, unlimited calls and texts are going with you to Canada & Mexico. Make sure to enable Roaming mode on your phone.

Does the sim card work in a router / mifi device or a tablet?

All plans with calls & texts are guaranteed to work in a smartphone only.

All usage in any other kind of devices cannot be guaranteed. Carriers may block usage.

What is the sim card size?

It is an universal triple-cut sim card. Mini / Micro / Nano size.

How do I activate the sim card?

The sim card is shipped inactive. You can activate it whenever and wherever you wish so. Activation instructions are provided by email and in the package.You will proceed activation online on our website in only three steps.

For more informations read our special FAQ about our activation process.

When do I know my US phone number?

The US phone number is associated upon activation of the sim card, it is impossible to know it before. You will receive it in the confirmation of activation email.

*What is the delivery time for the sim card?

All in stock orders are shipped next business day from France. Delivery is by your local post office within 1 to 4 business days in France, 3 to 5 business days to Europe and 10 to 15 business days to worldwide.

An express shipping option is available to Worldwide with guaranteed overnight delivery (except holiday) in France metropolitan, Belgium, Germany and in most other european countries.

The price and exact delivery date will be indicated on the payment page once your full address is filled.

Do you have plans for other countries?

Yes we do! Check out our Flexiroam X World Plan. We cover more than 160 countries in 3G and 4G.

Some informations about VAT.

If you visit this website from EU all of our prices are shown VAT (Value Added Tax) inclusives. If you live in a country that is not suggest to VAT, all prices will be exempted from tax. The order total will update once you indicate your shipping address in the checkout page.

Customer Service

We dedicate ourself to provide the best customer service possible. We are available 7 days a week thru chat – hours of operations may vary – and we reply to your emails within 24 hours maximum.

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Customer reviews

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