A SIM card is required to operate the smartphone when it is connected to an operator’s network. You can easily change or move SIM cards from different devices, but only if they are unlocked. Whether it’s an old or a new SIM card, you can insert it into your new phone.

The American prepaid SIM card can be used with IoT devices and phones. With prepaid plans, users can know the exact amount they can pay for the non-contractual option and they can change operators at any time. Pay as you go – this is another option of a prepaid plan.

An American prepaid SIM card is a 3-1 SIM card where the SIM card is divided into three different sizes: Nano, micro and mini. When in use, they can be integrated into any device. All major available networks used in the United States rely on the LTE network to ensure compatibility with the large number of mobile phones.

The popularity of GSM SIM cards has increased because they are the most widely used. To activate it, simply enter your CARD-ID and select an activation plan. You can then insert your SIM card into the phone booth and get started.

The American prepaid SIM card is also compatible with devices connected to the Internet of Things (IoT), such as cars, GPS trackers, smartphones and alarm systems. SIM cards use usage plans that are ideal for establishing connections on devices, i.e. for using data, text messages and calls from one mobile phone to another.

In this article you will find information about some of the prepaid SIM cards used in the United States and a detailed list of each card, so you know which one is usable. There are different fares, some of which can be used outside the country when travelling. So this is the main advantage of prepaid SIM cards.

American prepaid SIM card

The best prepaid SIM card in the US – Top 5 companies offer thecard.

1. SIM Card with T-Mobile prepaid

T-Mobile is one of the leading operators in the United States capable of offering its prepaid services to the majority of customers. It offers an unlimited amount of data that can be used outside the country at reduced 3G speeds.

Main features :

  • 50 GB of data.
  • Unlimited calling.
  • Unlimited texting.
  • 15 days credit period.

The advantages of

  • The coating is durable
  • Unlimited rates, that’s good
  • International benefits are good
  • It offers a subscription to Netflix multi-line plans.


  • The coating is highly stained.
  • Plans can be expensive.

2. Three prepaid SIM cards

Three prepaid sim cards have become one of the most recommended sim cards you can use while you are in the United States. It is also available worldwide, and customers can use it wherever they are, with ease, because if the stores that offer it.

Main features :

  • Triple SIM card 3 in 1.
  • Provides 4G/3G roaming data.
  • Unlimited number of texts and protocols.
  • Pay the supplements one by one.
  • Credit period of 30 days.

The advantages of

  • No extra costs when using the 4G
  • Free roaming abroad
  • It’s not binding.


  • The speed of data transmission is not that high.

3. AT&T Prepaid SIM card

AT&T is one of the preferred prepaid SIM cards in the US and offers 22 GB of data. It can also be used in Canada and Mexico. The SIM card offers an unlimited number of text messages, calls and data.

Main features :

  • 22 GB of data.
  • Unlimited texting and calling.
  • Credit period of 30 days.

The advantages of

  • It lacks an annual contract and a credit check.
  • Offers free activation for online orders
  • has big plans


  • The plans are a bit expensive.
  • Unlimited plans have relatively low thresholds for data extraction.

4. Prepaid aerobic SIM card

American prepaid SIM cards offer unlimited data used by the T-Mobile network throughout the United States. The basic version included a 28-day validity period and a mobile hotspot option.

Other versions offer a validity of 7 and 14 days, which means that data transfer is not possible or cannot be paid for.

Main features :

  • SIM card with prepayment for data only.
  • High speed 4G LTE data.
  • 3 in 1 SIM card.
  • Credits are valid for 28, 7 and 14 days.

The advantages of

  • There’s no need to check.
  • The SIM card can be activated via an Internet portal.
  • Car SIM cards all phones, tablets, phones, iPads and Mi-Fi devices


  • The process of activating the SIM card is not easy.

5. LycaMobilePrepaid SIM Card

If you are a user who does not plan to use large amounts of data, but prefers to call a lot and send a lot of text, you can use a LycaMobile SIM Card with US prepaid. It also uses the T-Mobile networks for unlimited calling and texting.

Main features :

  • Triple universal SIM card.
  • Unlimited calling and texting to the US.
  • Make unlimited calls and send messages from the US to anywhere in the world, including mobile phones.
  • Unlimited Internet up to 4GB in 4G LTE (after which the speed is reduced).
  • The credit is valid for 30 days.

The advantages of

  • National and international protocols
  • Unlimited local calls with Laika
  • Submission of texts from Laika to Laika
  • Wandering the EU


  • The speed of the internet is low
  • Cannot be used as a mobile access point.

Frequently asked questions [FAQ]

How can a user make international calls with a LycaMobile prepaid SIM card?

The SIM card can be used in the same way as other mobile phones. You can simply dial 011 and then enter the area code without entering the first 0 and then the phone number.

How do I activate my T-Mobile SIM Card?

You can easily replace the SIM card of the old phone with the new one if the size of the slots is not a problem. If this is the case, you need to change your SIM card before you can set up the wizard on your phone when creating a new Android account.

Who has the right to use the savings of AT&T AutoPay?

Each customer who uses the selected monthly plan is automatically enrolled in AutoPay. They benefit from discounts that vary according to their plans and shares.

Can a customer charge his number three in advance?

You can register the prepaid number three as long as it is activated from three accounts. Then you should also receive a Port Authorization Cord (PAC).

Is the SIM card expiring in the United States?

If the SIM card is not used within one year, it will expire.


Prepaid SIM cards are used to offer fully mobile services that help customers avoid the high costs associated with phone bills. They can easily be used in the United States and other countries when you decide to travel; it may be easier for you.

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