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USA AT&T eSIM - Unlimited Data (25GB Canada and Mexico | 30 Days | iPhone ONLY)

4.9|Based on 207 Reviews4.89 out of 5 stars based on 207 reviews
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Important Information

IMPORTANT: Some providers advertising "Unlimited Data" without addressing any limits or throttling may be misleading. If you find ambiguous language regarding potential data slowdowns attributed to factors beyond their control and assurance speeds will normalize the next day, it typically indicates the presence of an undisclosed daily usage caps. We strongly advise reaching out to them directly or thoroughly reviewing their website to clarify these restrictions. Our eSIM has a limit of 30GB of high speed data, If the 30GB limit is reached within the month then your data will be slowed to 1.5Mbps speeds for duration of your plan.

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Recent Reviews

Paul W.

eSIMple as could be

So easy from start to finish. Great support from Simcorner when we had a slight issue during the purchase. Excellent instructions to get us started using the eSIM. Arrived in the U. S. , switched on the new eSIM and immediately up and running with TMobile. Could not have been simpler.

Chris W.

Issues with AT&T

The purchase experience was smooth. The instructions were clear. SIMcorner did their part, but then AT&T initiated the contract 2 days early, which means it now expires 2 days before the end of our trip. SIMcorner have been very helpful in sorting this out. If AT&T won’t change the contract, which seems likely, then SIMcorner will find an alternative solution. SIMcorner have been incredibly helpful throughout even though the problem wasn’t their fault.

David S.

So easy and great support

I have sued Sim Corner before but decided to use the esim version this time. Even when there was a hiccup, the Sim Corner team were there to provide help. All in all a great experience, that keeps me coming back again and again. They are very much my choice for International travel sim.

Lynette G.

Fantastic product

We used an eSIM from Sim Corner for the first time for a recent trip to the USA and Mexico. The process was very simple and support was available every step of the way. The sim enabled us to travel around several states of the US, giving us accurate GPS road directions. The unlimited data meant we didn’t have to rely on logging into hotels for their wifi. For a small fee, I was able to hotspot my data to another device. The information sheets are very detailed and clear to lead you through each step of activation and support is on hand even once you are overseas. Having a phone number that could be used while travelling was also a big plus. Sim Corner will now be my first and only choice when I travel overseas. Exceptional quality and value for money.

How to Activate eSIM?

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  • 1

    Check Compatibility

    Make sure your device supports eSIM functionality. Check compatibility here.

  • 2

    Choose Your Plan

    Choose your eSIM plan from SimCorner. Get a QR code and setup instructions by email.

  • 3

    Scan to Set Up Your eSIM

    Scan the QR code sent to your email to set up your eSIM.

  • 4

    Activate eSIM When Ready

    Select your destination and choose a data pack that suits your needs.

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Frequently Asked Questions

Everything you need to know about SimCorner’s SIM and eSIM services for a hassle-free travel. View all FAQ

SimCorner is your trusted global provider of travel eSIM and SIM cards. We offer affordable, hassle-free plans with options for data-only or data with calls and SMS, covering 200+ destinations. Order our prepaid SIM cards online for fast delivery to your doorstep, or choose an eSIM for instant purchase and easy activation. With our unmatched coverage and award-winning customer support, you can explore the world with confidence wherever your travels take you.
Make sure that your device is unlocked before you depart for your trip. Make sure that your device has eSIM compatibility. See our full list of compatible devices. Ensure that you have access to the eSIM email we have provided.
To check your data balance/allowance you simply need to dial *777# then press Call (star, seven, seven, seven, hash then press Call).
Coverage: USA, Hawaii, Canada, Mexico, Alaska. Please note when searching the coverage in Canada, only refer to the colour 'orange' on the Canada map. Where ever it's showing the color orange on the map in Canada, it means there is coverage there but the text that comes up will note 'No Coverage'. This is because the actual carrier of the sim AT&T doesn't have a their own network in Canada and that their network partner in Canada is Rogers so they can't provide specific details regarding a different companies network. The colour 'orange' is shown in the legend/key of the map as "off-network" coverage, meaning it's not their own coverage/network but it's on another network. This does not apply for USA and Mexico since AT&T have their own networks in those two countries so searching coverage for cities and towns in USA and Mexico will be more clear.
The mobile data APN settings should automatically update when you insert the sim card in you phone. If it does not, you need to update the settings so it states the following; APN Name: ATT phone APN: phone None of the other mobile data APN fields, need to be changed or adjusted, only the above. Details about APN settings and other important information will be noted on the instruction sheet that will come accompanied with the sim card.
The features on the esim card are valid for 30 days of service from activation. 
The plan will last 30 days from the activation date provided. If you are staying longer than 30 days and wish to recharge the sim you can do this by either going into an AT&T store or calling AT&T customer service on 611 from your mobile handset. To recharge this same plan for another 30 days in the US with AT&T, will cost $65USD + Tax. If you have purchased the hotspot/tethering add-on then it will cost $75USD + Tax to recharge the plan. If you don't need the same plan for the following month or only need a few more days of service, then just let AT&T know and they will provide you some prepaid plan options to change to. Alternatively, you can look to purchase multiple sims to cover your duration if travelling for more than 30 days. For example, if you are travelling for 56 days and are departing on the 1st of September, then you should select '2' for the quantity (qty) and add them to the cart. Then in the cart page enter the activation date for the first sim as 1st September and then press the "+" to enter the activation date for second sim as 30th September (you can select whatever activation date you like or even have them overlap, just keep in mind that your 30 days will begin from that date). You can then use the two sims for 30 days from the dates you have provided.  (Please note: each sim card will have a different phone number). As long as you are aware your 30 days will begin from the activation date you provide for each sim, it's up to you what date you provide ensuring it covers you for your duration. It's fine to have services overlap.
Should you run into any issues with the sim card whilst overseas then we encourage you to email us immediately at support@simcorner.com and let us know the following information; Your order number or the name that the order is under along with the sim card number and phone number. Which country you are in currently and whether the sim card connects to any network, if so, which network? Did you receive any SMS after you inserted the sim card? If so, please send us a screenshot of that message. Message us screenshots of any error message you are getting. What phone model you are using? Any other information about the issue, which will assist us in helping you resolve the issue. 
Within USA If someone from within USA wishes to call you from their USA phone number they would just need to call you on your US phone number. Within Canada and Mexico If someone from Canada and Mexico wishes to call they would need to add the USA calling code +1 prior to the phone number For example, if your phone number is 720 462 4562, then they would need to dial +1 20 462 4562. Overseas If someone from outside of USA wishes to call they would need to add the USA calling code +1 prior to the phone number For example, if your phone number is 720 462 4562, then they would need to dial +1 20 462 4562. Social App You can stay in touch with your family and friends by sending them messages and calling them via data based apps such as Whatsapp, Viber, Snapchat, Messenger, Skype, iMessage etc.
If your friends and family have have purchase the same sim card then you will be able to call them and text them directly. However, if your friends and family are using their roaming services from back home, you will be able to text them but not call. You would need to call them via data based apps such as Whatsapp, Viber, Skype, Messenger, etc .
If you are travelling to different countries that are noted on the "Countries Coverage" section, then all you need to do is restart your phone as you move from one country to another. The sim card will automatically connect to a local carrier. Should you run into any issues, with network connections as you move from one country to another we encourage you to contact us immediately at support@simcorner.com
1) Order your USA eSIM from SimCorner 2)Once you have processed your order, you will receive an email with the instruction steps to register and confirm your activation date and phones EID (the SIM card ID for your specific phone model). The EID is used to send the eSIM plan directly to your phone at the activation date and a requirement by A&T. The instruction steps will also provide detailed step by step instructions with screenshots on how to install your prepaid travel eSIM.   **If you do not receive the email with the instructions, please check your Spam folder and whitelist our domain( simcorner.com ) and also support@simcorner.com from your email program you are using, as it may be wrongly flagged as Spam. Please then contact us at support@simcorner.com and we can send this instructions to you again manually.**   ***Should you require your plan urgently, please contact us at support@simcorner.com and we can organise for a speedier delivery.*** 3) On the day of your chosen Activation date, you will need to go to your phones eSIM setting where you will be notified of a pending eSIM plan. You can then follow the steps to have it connected as the primary connection and start using the eSIM Plan.  
Your local USA phone number is only generated once the sim card is activated (based on the activation date that you note at the time of purchase). You 30 days of service will commence from this date. Upon arriving in either the USA, Canada or Mexico and after inserting the sim card in your mobile phone, you can go into your phone settings menu to view your USA phone number. Can I get my phone number earlier? When a sim is activated we are able to retrieve the phone number from the system. As an option, if you are travelling for less than 30 days you can look at providing an earlier activation date when purchasing the sim card, bearing in mind that your 30 days of service will still begin from that date. You can then e-mail us on the activation date you provided requesting your phone number which we can then forward to you.
If you purchase the hotspot/tethering option for $10 then you will have up to 10GB hotspotting for use in USA only. No hotspotting in Canada or Mexico. If you do not purchase this option, then you will be unable to hotspot/tether from your phone at all.
You simply need to have both MOBILE DATA and DATA ROAMING functions ENABLED/TURNED ON in your phone to use the service. The sim card will be active from the activation date you have provided. It is on this date that your 30 days of service will automatically commence.
The esim will connect to the ATT network in USA (including Alaska and Hawaii) and Mexico. Whilst in Canada, the sim card will connect to Rogers.
The plan will last 30 days from the activation date provided. If you are staying longer than 30 days and wish to recharge the sim you can do this by either going into an AT&T store or calling AT&T customer service on 611 from your mobile handset. To recharge this same plan for another 30 days in the US with AT&T, will cost $65USD + Tax. If you have purchased the hotspot/tethering add-on then it will cost $75USD + Tax to recharge the plan. If you don't need the same plan for the following month or only need a few more days of service, then just let AT&T know and they will provide you some prepaid plan options to change to. Alternatively, you can look to purchase multiple sims to cover your duration if travelling for more than 30 days. For example, if you are travelling for 56 days and are departing on the 1st of September, then you should select '2' for the quantity (qty) and add them to the cart. Then in the cart page enter the activation date for the first sim as 1st September and then press the "+" to enter the activation date for second sim as 30th September (you can select whatever activation date you like or even have them overlap, just keep in mind that your 30 days will begin from that date). You can then use the two sims for 30 days from the dates you have provided.  (Please note: each sim card will have a different phone number). As long as you are aware your 30 days will begin from the activation date you provide for each sim, it's up to you what date you provide ensuring it covers you for your duration. It's fine to have services overlap.
Should you run into any issues with the sim card whilst overseas then we encourage you to email us immediately at support@simcorner.com and let us know the following information; Your order number or the name that the order is under along with the sim card number and phone number. Which country you are in currently and whether the sim card connects to any network, if so, which network? Did you receive any SMS after you inserted the sim card? If so, please send us a screenshot of that message. Message us screenshots of any error message you are getting. What phone model you are using? Any other information about the issue, which will assist us in helping you resolve the issue. 
Within USA You simply just need to dial USA phone number you want to call or SMS. Within Canada If you wish to call or SMS a Canadian phone number you need to include the country's calling (+1). For example if the phone number 704 852 5326 then you will need to dial +1 704 852 5326 (To get the + on a mobile phone, press and hold 0 until it turns into a +) Within Mexico If you wish to call or SMS a Mexican phone number you need to include the country's calling (+52). For example if the phone number 704 852 5326 then you will need to dial +52 704 852 5326. Overseas If you are wanting to call a country other than Canada, Mexico, USA, then you can stay in touch with your family and friends by sending them messages and calling them via data based apps such as Whatsapp, Viber, Snapchat, Messenger, Skype, iMessage etc.
Yes you are able to call and text your travel partners if you both purchase a USA eSIM or USA SIM card.
We have a 100% Money Back Guarantee policy, which means that if you have a bad experience with one of our sim card and receive no value from it, we will provide you a refund. However, you MUST contact us whilst you are having the issue, so our team can assist you in resolving your problems. Please do this when you are in WiFi (generally at the airport when you land if not working to begin with) or e-mail us from your accommodations (WiFi) or cafe etc. If you only decide to contact us after you return to let us know the sim didn't work then we can't look to provide a refund as we won't be able to see exactly what the issue was and why it didn't work. Should you run into any issues whilst using the sim card, please immediately contact us at support@simcorner.com Should our team be unable to assist you in resolving your issue, then we will provide you a refund on your purchase.
Yes, you will have access to all your apps, messages, contacts and emails whilst using this sim card. Nothing on your phone is deleted or changed and you can continue to use your phone as per normal. The only change with using this sim card is that you will have a new phone number. 

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Know more

Best Prepaid AT&T eSIM Card for USA   

Travelling to the USA, Canada, Mexico or Alaska? Stay connected with family and friends during your visit with an AT&T Unlimited data Card. Having a USA tourist eSIM card with unlimited data gives you the freedom to:

  • Stay up to date with your social media
  • Keep your data on 24/7
  • Call and text any number or landline in the US
  • Update your family and friends about your holiday
  • Back up your photos as you go
  • Navigate maps
  • Research and add to your itinerary on-the-go
  • Check opening hours, prices, and any details you need to know of places in your itinerary

Forget using a standard SIM with roaming services, we’re offering the best eSIM for the USA with unlimited data and 25GB Data in Canada and Mexico. You pay for the amount you see and no extra costs! By using the top network provider in the USA, Canada, and Mexico, you can enjoy great coverage wherever you’re holidaying!

Included Features:

**Please Note: Foreign model (Non-US) android phones are no longer compatible with AT&T. Do not purchase if it is for use in an android phone. We cannot provide you a refund if it is activated and doesn't work in your android phone.

We recommend that you purchase the T-Mobile or Verizon eSIM options HERE (subject to compatibility). iPhone 12 or newer Apple phones are still fully compatibility with the AT&T network. Should you have any queries, please email us at support@simcorner.com**

 

Included Features Summary:

  • Carrier: AT&T USA
  • Country Coverage: USA, Hawaii, Canada, Mexico, Alaska
  • Data: Unlimited data in USA, Hawaii & Alaska. 25GB Data in Canada and Mexico
  • Data speeds: 4G. Max 3Mbps (Upload/Download) upto 30GB*
  • Hotspot/Tethering: No
  • Phone Number: This USA sim comes with a USA phone number
  • Calls: Unlimited Calls to USA, Hawaii, Alaska, Canada and Mexico mobiles and landline numbers
  • Texts: Unlimited SMS to USA, Hawaii, Alaska, Canada and Mexico mobile numbers. Unlimited International SMS to over 100 countries (includes, Australia, New Zealand, United Kingdom and Germany). For a full list, please refer to the 'Calls and SMS' in the "Things to know" section
  • Validity: 30 Days of service from activation
  • For AT&T's USA Coverage map, including Hawaii and Alaska, click here
  • For coverage in Canada and Mexico please refer to 'Coverage' section further below

     

    *Data speeds at max 3Mbps (Upload/Download). After 30GB usage, speeds are reduced to a max of 1.5 Mbps (Upload/Download) for the remainder of the 30 days.

     

    • Device Compatibility: This eSIM can ONLY be used in Unlocked & Compatible eSIM Apple iPhones and NOT in any data only devices such as, iPads, Tablets, Wifi Dongles and Mifi devices. For a detailed list of compatible devices please see Compatibility section below.
    • When to install: Upon arrival at your destination
    • Activation: Please see "How to activate this SIM card" in the "Things to know" section

    Optional add-on:

    • 10GB Mobile Hotspot/Tethering for USA ONLY Feature - (No Hotspot/tethering in Canada or Mexico)
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