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Best Deal: Red Pocket 5GB SIM for $25/mo

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
Red Pocket Sim Card - Vertical
1GB4G/5G Data
$10per month
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Red Pocket Sim Card - Vertical
5GB4G/5G Data
$25per month
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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!
CarrierNetworkDataPriceAnnual
AT&TAT&T 4G & 5GUnlimited*$75/mo$900/yr
Red PocketAT&T 4G & 5G10GB$22.50/mo$270/yr
*Avg. data usage only 3-5GBSavings$52.50/moSavings$630/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.

Compare cheap AT&T plans in your area

Best prepaid AT&T data SIM cards

Cheapest AT&T data only SIM card for tablets

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:

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

0.50GB

$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

$22.50*

* $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 100GB SIM card

100GB

$37.50*

* $450 for 12 Months Service
View Plan

Red Pocket 25GB SIM card

25GB

$40

View Plan

Red Pocket 100GB SIM card

100GB

$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

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:

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

0.50GB

$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

$22.50*

* $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 100GB SIM card

100GB

$37.50*

* $450 for 12 Months Service
View Plan

Red Pocket 25GB SIM card

25GB

$40

View Plan

Red Pocket 100GB SIM card

100GB

$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

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:

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

0.50GB

$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

$22.50*

* $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 100GB SIM card

100GB

$37.50*

* $450 for 12 Months Service
View Plan

Red Pocket 25GB SIM card

25GB

$40

View Plan

Red Pocket 100GB SIM card

100GB

$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

CarrierNetworkMinutesTextsDataPrice
Red PocketAT&T001GB$10
Red PocketAT&T005GB$25
Red PocketAT&T0020GB$40

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.