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4G/5G data
mins
texts
/mo
Same coverage - massive savings!YOU SAVE:
T-Mobile
Magenta - $70/mo
$840/yr
AT&T
Unlimited Extra - $75/mo
$900/yr
Verizon
Play More Unlimited - $80/mo
$960/yr
$0$20$40$60$80
Monthly cost
Average monthly data usage is only between 3-5GB
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Benefits

    Best AT&T Data Only SIM Card

    Cheap prepaid AT&T data only SIM cards

    99% coverage4G & 5G speedBring your phoneNo contracts
    Big wireless coverage at small prices: switch & save up to $600 a year
    Boost Mobile Sim Card - Vertical
    5GB4G/5G Data
    $5*per month
    Powered by:
    See Deal* 66% Off for 3 Months
    Boost Mobile Sim Card - Vertical
    1GB4G/5G Data
    $8*per month
    Powered by:
    See Deal* $100 for 1 year service
    PureTalk Sim Card - Vertical
    2GB4G/5G Data
    $10per month
    Powered by:
    Red Pocket Sim Card - Vertical
    1GB4G/5G Data
    $10per month
    Powered by:
    Boost Mobile Sim Card - Vertical
    15GB4G/5G Data
    $20*per month
    Powered by:
    See Deal* $240 for 1 year service
    PureTalk Sim Card - Vertical
    5GB4G/5G Data
    $20per month
    Powered by:
    Red Pocket Sim Card - Vertical
    5GB4G/5G Data
    $25per month
    Powered by:
    Boost Mobile Sim Card - Vertical
    Unltd4G/5G Data
    $25per month
    Powered by:
    PureTalk Sim Card - Vertical
    10GB4G/5G Data
    $30per month
    Powered by:
    Red Pocket Sim Card - Vertical
    20GB4G/5G Data
    $40per month
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    Disclaimer: MoneySavingPro is a free price comparison service but we do not provide service directly. We do our best to keep all the information up to date but there may be some discrepancies between the price you pay.

    Big savings, no compromises
    Nationwide CoveragePowered by the major networks
    Bring your own phoneKeep your existing phone and number
    4G LTE data speedsSame fast speeds as the big guys
    No contractsFlexible and commitment-free
    Customize your planOnly pay for what you use
    Buy onlineNo need to visit a store
    AT&T Data Only SIM Card Hero
    Same coverage, massive savings!
    Stop the Unlimited Data Plan Rip Off!
    CarrierNetworkDataPrice Annual 
    AT&TAT&T 4G & 5GUnlimited*$75/mo$900/yr
    Red PocketAT&T 4G & 5G10GB$22/mo$264/yr
    *Avg. data usage only 3-5GBSavings$53/moSavings$636/yr
    Switching & saving is simple
    1
    Customize your planDon't pay for data you don't use
    2
    Bring your own phoneKeep your device & number
    3
    Order SIM card onlineInsert your new SIM card & activate

    Cheapest AT&T data SIM card

    By Rob Webber - Last updated on

    Data only SIM cards are perfect for WiFi devices when you're on the go, and AT&T MVNOs offer a low-cost way to access the nationwide network.

    Mobile Virtual Network Operators (MVNOs) operate on the main US networks, so you'll receive the same quality coverage at half the cost.

    We've broken down the data only SIM cards available with AT&T MVNOs to help you find your best deal.

    Check Carrier Coverage

    Best prepaid AT&T data SIM cards

    Cheapest AT&T data only SIM card for tablets

    See Deal
    Red Pocket SIM Card - Red Pocket 20GB data only SIM kitRed Pocket SIM Card - Red Pocket 20GB data only SIM kit
    Minutes
    0
    Texts
    0
    Data
    20GB
    Price
    $40
    Powered by:
    See Deal

    This Red Pocket SIM kit includes 20GB data for $40 for 1 month of wireless service. Red Pocket internet plans offer wireless coverage on the AT&T 5G and 4G LTE network. To learn more about why this is one of the best cell phone plans, check out MoneySavingPro's Red Pocket review

    Plans
    PlanDataPriceView plan

    Red Pocket 500MB SIM card

    500MB

    $10

    View Plan

    Red Pocket 3GB SIM card

    3GB

    $15*

    * $180 for 12 Months Service
    View Plan

    Red Pocket 3GB SIM card

    3GB

    $20

    View Plan

    Red Pocket 10GB SIM card

    10GB

    $22*

    * $270 for 12 Months Service
    View Plan

    Red Pocket 25GB SIM card

    25GB

    $30*

    * $360 for 12 Months Service
    View Plan

    Red Pocket 10GB SIM card

    10GB

    $30

    View Plan

    Red Pocket 50GB SIM card

    50GB

    $37*

    * $450 for 12 Months Service
    View Plan

    Red Pocket 25GB SIM card

    25GB

    $40

    View Plan

    Red Pocket 50GB SIM card

    50GB

    $50

    View Plan
    Review
    4.5

    Pros

    • Nationwide coverage

    • No contracts

    • Latest selection of phones

    Cons

    • Account dashboard needs work

    • No 0% financing options on latest phones

    • Customer service

    Benefits

    • Operates on all four networks - AT&T, T-Mobile, Sprint, and Verizon

    • Prepaid cell phone plans - no contract, credit check, or activation fees

    • Bring your own GSM or CDMA device and keep your phone number

    • Mobile hotspot/tethering allowed with your plan data

    • Free international calling to 70+ countries

    • Customer service available in English, Chinese, Filipino, and Spanish via chat or phone

    Cheapest AT&T data only SIM card for hotspots

    See Deal
    Red Pocket SIM Card - Red Pocket 5GB data only SIM kitRed Pocket SIM Card - Red Pocket 5GB data only SIM kit
    Minutes
    0
    Texts
    0
    Data
    5GB
    Price
    $25
    Powered by:
    See Deal

    This Red Pocket SIM kit includes 5GB data for $25 for 1 month of wireless service. Red Pocket internet plans offer wireless coverage on the AT&T 5G and 4G LTE network. To learn more about why this is one of the best cell phone plans, check out MoneySavingPro's Red Pocket review

    Plans
    PlanDataPriceView plan

    Red Pocket 500MB SIM card

    500MB

    $10

    View Plan

    Red Pocket 3GB SIM card

    3GB

    $15*

    * $180 for 12 Months Service
    View Plan

    Red Pocket 3GB SIM card

    3GB

    $20

    View Plan

    Red Pocket 10GB SIM card

    10GB

    $22*

    * $270 for 12 Months Service
    View Plan

    Red Pocket 25GB SIM card

    25GB

    $30*

    * $360 for 12 Months Service
    View Plan

    Red Pocket 10GB SIM card

    10GB

    $30

    View Plan

    Red Pocket 50GB SIM card

    50GB

    $37*

    * $450 for 12 Months Service
    View Plan

    Red Pocket 25GB SIM card

    25GB

    $40

    View Plan

    Red Pocket 50GB SIM card

    50GB

    $50

    View Plan
    Review
    4.5

    Pros

    • Nationwide coverage

    • No contracts

    • Latest selection of phones

    Cons

    • Account dashboard needs work

    • No 0% financing options on latest phones

    • Customer service

    Benefits

    • Operates on all four networks - AT&T, T-Mobile, Sprint, and Verizon

    • Prepaid cell phone plans - no contract, credit check, or activation fees

    • Bring your own GSM or CDMA device and keep your phone number

    • Mobile hotspot/tethering allowed with your plan data

    • Free international calling to 70+ countries

    • Customer service available in English, Chinese, Filipino, and Spanish via chat or phone

    Cheapest AT&T data only SIM card for MiFi

    See Deal
    Red Pocket SIM Card - Red Pocket 1GB data only SIM kitRed Pocket SIM Card - Red Pocket 1GB data only SIM kit
    Minutes
    0
    Texts
    0
    Data
    1GB
    Price
    $10
    Powered by:
    See Deal

    This Red Pocket SIM kit includes 1GB data for $10 for 1 month of wireless service. Red Pocket internet plans offer wireless coverage on the AT&T 5G and 4G LTE network. To learn more about why this is one of the best cell phone plans, check out MoneySavingPro's Red Pocket review

    Plans
    PlanDataPriceView plan

    Red Pocket 500MB SIM card

    500MB

    $10

    View Plan

    Red Pocket 3GB SIM card

    3GB

    $15*

    * $180 for 12 Months Service
    View Plan

    Red Pocket 3GB SIM card

    3GB

    $20

    View Plan

    Red Pocket 10GB SIM card

    10GB

    $22*

    * $270 for 12 Months Service
    View Plan

    Red Pocket 25GB SIM card

    25GB

    $30*

    * $360 for 12 Months Service
    View Plan

    Red Pocket 10GB SIM card

    10GB

    $30

    View Plan

    Red Pocket 50GB SIM card

    50GB

    $37*

    * $450 for 12 Months Service
    View Plan

    Red Pocket 25GB SIM card

    25GB

    $40

    View Plan

    Red Pocket 50GB SIM card

    50GB

    $50

    View Plan
    Review
    4.5

    Pros

    • Nationwide coverage

    • No contracts

    • Latest selection of phones

    Cons

    • Account dashboard needs work

    • No 0% financing options on latest phones

    • Customer service

    Benefits

    • Operates on all four networks - AT&T, T-Mobile, Sprint, and Verizon

    • Prepaid cell phone plans - no contract, credit check, or activation fees

    • Bring your own GSM or CDMA device and keep your phone number

    • Mobile hotspot/tethering allowed with your plan data

    • Free international calling to 70+ countries

    • Customer service available in English, Chinese, Filipino, and Spanish via chat or phone

    Best prepaid AT&T data only SIM cards

    CarrierDataNetworkPrice
    Boost Mobile 5GB data only SIM kit5GBAT&T & T-Mobile$5** 66% Off for 3 Months
    Boost Mobile 1GB data only - 12 mths SIM kit1GBAT&T & T-Mobile$8** $100 for 1 year service
    PureTalk 2GB data only SIM kit2GBAT&T$10
    Red Pocket 1GB data only SIM kit1GBAT&T$10
    Boost Mobile 15GB data only SIM kit15GBAT&T & T-Mobile$20** $240 for 1 year service

    AT&T data SIM card sizes

    There are three different SIM card sizes. Each has an adapter in case you want to switch to a phone with an incompatible SIM Card slot.

    • Standard SIM Card - The original SIM Card size is similar to any card in your wallet. However, if you want to transfer your data to a new phone, you can take out a small portion of the SIM card to insert into another iPhone.
    • Micro SIM Card - Micro SIM Cards were introduced in 2010. The Micro SIM Card size is small compared to the original SIM card but not quite as small as the Nano SIM card.
    • Nano SIM Card - Nano SIM Cards are the smallest SIM cards that came out in 2013.

    How to remove an AT&T data SIM card

    To remove the SIM card from your AT&T device all you need is the SIM card remover tool provided to you when you bought your device or a small paper clip.

    1. If using the paperclip, unfold it and gently insert the end into the small pinhole in the SIM tray.
    2. Press gently until the SIM tray pops up, you do not need to use much pressure.
    3. Pull the SIM tray out gently, be careful the SIM card does not fall out.
    4. Swap your SIM card over, making sure you have aligned the SIM in the correct position.
    5. Re-insert the SIM tray into the phone.

    AT&T data SIM card FAQs

    Where can I buy a prepaid AT&T data SIM card?

    AT&T MVNOs offer a variety of prepaid plans. You just purchase a SIM card kit, with no need to upgrade your handset.

    How much is a AT&T data SIM card?

    AT&T MVNO prepaid plans start from around $10.

    How do you activate a AT&T data SIM card?

    When you receive your SIM card, pop it into your device and follow the activation instructions.


    Recap

    Saving money on a data only SIM card is easy with AT&T MVNOs, their low-cost plans and the same quality coverage means there's no sacrifices.

    You could even opt for a cheaper plan by choosing a set data limit. On average we only use around 3 to 5GB of data per month, so do you really need all that unlimited data? You can estimate your data usage with our free tool to find out.

    Rob Webber
    Rob Webber

    Rob has 15+ years experience in the US and UK running price comparison sites for cell phone plans, smartphone deals, TV, and internet. He loves thinking outside of the box to build tools that empower consumers to make more informed decisions.