USA SIM Card Unlimited 30 Days | T-Mobile

Mona Updated by Mona

First things first.. SIM Activation

Give us your Activation Date ✈️

You will be prompted at checkout to select the Activation Date for your SIM.

Your Activation Date is the date that you will need your SIM to be connected for use.

We recommend choosing the date that you land - keeping in mind that we activate on the date you selected at 2 pm AEST (4 am GMT). Your SIM will not work unless you have given us your activation date.

Once activated, connection to the network can take anywhere from a few minutes to a few hours.

If you are unsure, you can choose an estimated date and reach out to us to change it 🗓

How does activation work?

  1. We will activate your SIM card on the date that you provide during checkout.
  2. Once you arrive at your destination country, insert the SIM into your device.
  3. Turn on Data Roaming in your settings
  4. Restart your device

Easy peasy! 🙌

What do I do if my data isn't working?

If you've just activated your SIM

If you've just activated your SIM and you've got a signal, you might need to check a couple of things to get your data working.

  1. Check that you have Data Roaming & Mobile Data turned on in your Settings.
  2. Make sure that you have changed your APN settings to match the following:
    Name: T-Mobile
    APN: (for LTE devices) or (for non-LTE devices)
    User name: Not set
    Password: Not set
  3. Restart your phone
  4. If it's still not working, try the SIM in another phone to see if it'll work there.

If you've been using your SIM but suddenly your data has stopped working
  1. Check that you have data balance left by dialling #932#
  2. Try turning your device off and on
  3. Try to remove the SIM from your device and re-insert it
  4. Check the coverage in the area you are in
  5. If your phone says it's connected to LTE or 4G but the data isn't working, try to manually turn off LTE/4G to connect to 4G/3G.


Settings > Mobile > Mobile data options > Disable LTE > Restart


Settings > Connections > Mobile Networks > Network Mode > Switch to 3G/2G > Restart

It might look different depending on your device! If these instructions don't match exactly, explore your settings until you find Network Mode

I've tried everything and it's still not working

These guides are based on our most frequently asked questions. If you can't find what you're looking for, feel free to reach out to us and we'll try our best to provide assistance. You can reach us at or 📩

Before contacting us, please have the following information ready:

  • Which SIM have you bought?
  • Where are you located?
  • When did you activate and what happened when you activated it?
  • What troubleshooting steps have you tried?
  • Please send through a screenshot of your Mobile Network settings and your APN settings with the WiFi turned off and your mobile data turned on so we can see what's going on.
  • Any other details that might help us, help you!

Contacting T-Mobile Mobile

If you're having issues with your SIM, you can get in touch with T-Mobile Customer Service. The options to contact them are:

  1. Dial 611 from your phone
  2. Dial 1-800-937-8997 from another phone

How do I find my mobile number?

You can only find out your number after you activate your SIM and your new US mobile number will be texted to you after activation in the US.

How do I check my balance?

Simply dial #932# and it will show you how much data you've used. If you receive any prompt/texts about have zero credit balance, you can ignore this!

How do I recharge?

As described on the website, the SIM is non-rechargeable. The only way around this is to buy multiple SIM cards and swap them out as you go.

What's the coverage like?

You can find the coverage map here.

How do I make calls/texts?

  • Unlimited Calls within USA to USA Mobiles and Landline
  • Unlimited SMS to USA Mobiles

Simply dial the local USA number from your device. You may need to use a state code for landline numbers when calling interstate.

The unlimited local SMS/texts that come with the sim can be used to text US mobiles. The same process still applies for texting in terms of using the country codes as noted above.

The International Talk and Text Feature:

  • Unlimited calls to Standard Landlines to Australia, New Zealand and other landlines in select countries (Premium numbers not included)
  • Unlimited texting back to Australia, NZ and 200 other countries.

You can search for the countries and rates via the link HERE. If you just add credit without adding the international talk add-on, then you will be charged at the pay-as-you-go rates which can be expensive.

To add credit for International Mobile calls you can use the following link HERE.

What's Included & Things to know

  • Unlimited Data
  • 4G data speeds
  • Hotspot/tethering enabled at 3G speed
  • Unlimited calls & texts to US numbers
  • US mobile number
  • 30 days of usage once activated
  • 3 in 1 SIM size (nano, micro & standard)

  • Activation date required
  • No ID registration needed
  • Coverage on the T-mobile network
  • Works in USA & Hawaii (Does not include Alaska or Canada)
  • Compatible with GSM devices (Oceanic/Australian devices)
  • Works in all unlocked Mobile Phones (not in tablets/wifi devices)
  • No recharges available - this is a one-time use SIM

Add-On Feature Option:

If you have selected optional add-on features:

International Talk and Text Feature:

  • Unlimited Minutes from US (and Canada/Mexico with the Canada and Mexico feature) to landlines in 70+ countries, and mobiles in 30+ countries.
  • Unlimited calls to Standard Landlines to Australia
  • Unlimited texts to Australian Mobiles

Canada and Mexico Feature:

  • 5GB Data to use in Canada and Mexico
  • Unlimited Minutes and SMS within USA, Canada and Mexico to USA, Canadian, and Mexican; Mobiles and Standard Landline numbers

Will my phone be compatible?

The best type of phone to use is an unlocked GSM phone that supports one or more of the following frequencies:

  • 1700/2100 MHz (3G / 4G or LTE depending on location)
  • 1900 MHz (2G or 3G / 4G depending on location)
  • 850 MHz (2G)

Click here and follow the prompts to see if your phone is compatible. 📱

How do I know if my device is unlocked?

If you bought your device outright, it's most likely unlocked!

If you're unsure, the best way to find out is to call your Aussie network provider and ask! They'll be able to unlock it for you too. This might incur a fee! 🤔

Money-Back Guarantee

The telecommunications industry is exceptionally technical, and although we try our hardest to provide each and every single one of our customers with reliable SIM cards, there are certain manufacturing and network errors that are simply out of our control. However, this is why we have implemented our money-back guarantee, to protect our customers against faulty SIMs and poor experiences.

It is extremely important to us that our customers are looked after, and we are here to support you as much as possible. We wouldn't be able to do this without you!

In order to claim your Money-Back Guarantee, you'll need to contact us and we'll try to troubleshoot the issue with you. If we can't get it sorted, we'd be more than happy to give you a refund. You can contact us a or 📩

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USA SIM Card 6GB, 15GB & Unlimited Data | 30 Days | Ultra Mobile

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