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Best AT&T Prepaid SIM Card of 2021

Compare bring your own phone plans powered by AT&T

Deal of the Month: Reach Mobile - 50% off for 3 months
Pure Talk Sim Card - Vertical
2GBLTE Data
$15*per month
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See Deal* 25% Off for 3 Months
Red Pocket Sim Card - Vertical
3GBLTE Data
$19per month
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Unreal Mobile Sim Card - Vertical
12GBLTE Data
$25*per month
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See Deal* $10 Off for 1 Month
Good2Go Mobile Sim Card - Vertical
0GBLTE Data
$10per month
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h2o Wireless Sim Card - Vertical
6GBLTE Data
$22.50*per month
Powered by:
See Deal* 25% Off for 3 Months
Pure Talk Sim Card - Vertical
4GBLTE Data
$18.75*per month
Powered by:
See Deal* 25% Off for 3 Months
Red Pocket Sim Card - Vertical
1GBLTE Data
$10per month
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Unreal Mobile Sim Card - Vertical
3GBLTE Data
$15*per month
Powered by:
See Deal* $10 Off for 1 Month
h2o Wireless Sim Card - Vertical
UnltdLTE Data
$37.50*per month
Powered by:
See Deal* 25% Off for 3 Months
Pure Talk Sim Card - Vertical
UnltdLTE Data
$41.25*per 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
Best AT&T Prepaid SIM Card Hero
Switch and save $600 per year
Stop the Unlimited Data Plan Rip Off!
CarrierNetworkDataPriceAnnual
AT&TAT&T 4G & 5GUnlimited*$75/mo$900/yr
Red PocketAT&T 4G & 5G10GB$30/mo$360/yr
*Avg. data usage only 3-5GBSavings$45/moSavings$540/yr
Coverage CheckerFind great value plans with the best coverage in your area
Find cheap plans in your area
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3 Simple Steps To Switch & Save
1
Choose a Custom PlanDon't pay for data you don't use
2
Bring Your Own PhoneKeep your phone & number
3
Insert SIM & ActivateInsert your new SIM card & activate

The cheapest AT&T SIM card in April

Check Carrier Coverage

AT&T prepaid SIM card benefits

We love Mobile Virtual Network Operators or MVNOs. If you're on the lookout for cheap prepaid phone plans, they're the best route to go down.

Want to stay on the same network, keep your phone and number, plus get greater flexibility?

Yep. You've got it. Forget the major carriers. Plans include everything you need, but come at a much better price with an MVNO.

  • Same great nationwide coverage: These cell phone carriers operate on the very same networks as the big four carriers.

  • Much lower prices: Save up to $600 per year on your cell phone plan. Why are MVNOs so much cheaper? They don't have the huge overhead and advertising costs the big guys do.

  • No contracts: Don't get trapped into a two-year agreement. Switch carriers when you decide to with a no contract phone plan.

  • Same cell phone service: Just because you're paying less, that doesn't mean you have to scrimp on features. Plans with unlimited everything are easy to find from these prepaid carriers. Usually, a low cost carrier plan comes with unlimited talk and text as standard, high-speed data, and even mobile hotspot data features.

  • Keep your phone and number: You can bring your own phone and keep your phone number. No need to sign up for pricey device payments.

  • Customize your plan: You decide how much data you need. Choose to pay as you go, opt for unlimited or no data, minimal minutes, or unlimited talk text and data. Unlimited data plans come at a much better price with an alternative carrier. Pick the plan options that fit your budget - not the one your carrier thinks you need.

  • Great customer support: Smaller mobile providers are known for their attention to their customers. Stop feeling like an anonymous number getting lost in the crowd! Check out our carrier user reviews before switching.

AT&T unlimited data plans

Plan

Data

Monthly Price

Annual Cost

AT&T Unlimited Extra

Unlimited

$75

$900

AT&T Unlimited Elite

Unlimited

$85

$1,020

AT&T vs Pure Talk Plan Comparison

Keep your AT&T phone, number & coverage: Save $619 per year

Carrier

Network Coverage

4G LTE Data

Price

Annual Cost

AT&T

AT&T 4G LTE

Unltd*

$75/mo

$900/yr

Pure Talk

AT&T 4G LTE

4GB

$25/mo

$281/yr

*Don't waste money on unlimited data - Avg. data usage is only 3-5GBSavings$50/mo$619/yr
Best AT&T Prepaid Plans

Pure Talk - Best cheap AT&T prepaid plan

Powered by:
Minutes
Unlimited
Texts
Unlimited
Data
2 GB
Price
$15/mo*
* 25% Off for 3 Months
Editors Take
4 / 5

Best prepaid SIM card plans powered by AT&T

Best AT&T Unlimited Data Plans

h2o Wireless - Best AT&T prepaid SIM card for unlimited data

Powered by:
Minutes
Unlimited
Texts
Unlimited
Data
Unlimited
Price
$37.50/mo*
* 25% Off for 3 Months
Pros & Cons

Pros

  • 4G LTE coverage

  • Multi-month discounts

  • US based customer service

Cons

  • No 0% finance plans for new phones

  • May slow speeds at busy times

Carrier Benefits
  • Service provided on the AT&T network

  • Prepaid service - no contract, credit check, or activation fee

  • 30-day risk-free guarantee on plans- cancel within your first 30 days or 500 minutes/500 MB of data to receive a refund for your plan charges

  • Bring your own compatible GSM phone or buy a PureTalk USA phone

  • Keep your phone number

  • Mobile hotspot/tethering permitted

  • International calling available as an add-on calling card

  • Customer support available by phone 9am - 10pm EST weekdays and 12pm - 9pm weekends

Carrier Features
Plans

Plan

Minutes

Texts

Data

Price

Pure Talk 2GB Data

Unlimited

Unlimited

2GB

$15*

Pure Talk 4GB Data

Unlimited

Unlimited

4GB

$18.75*

Pure Talk 6GB Data

Unlimited

Unlimited

6GB

$22.50*

Pure Talk 10GB Data

Unlimited

Unlimited

10GB

$26.25*

Pure Talk 20GB Data

Unlimited

Unlimited

20GB

$33.75*

Pure Talk Unlimited Data

Unlimited

Unlimited

Unlimited

$41.25*

* 25% Off for 3 Months

Best AT&T Family Plans

Unreal Mobile - Best AT&T prepaid SIM card for families

Powered by:
Minutes
Unlimited
Texts
Unlimited
Data
3 GB
Price
$15/mo*
* $10 Off for 1 Month
Pros & Cons

Pros

  • 4G LTE coverage

  • International talk and text

  • Affordable plans

Cons

  • Speeds may be slowed

  • Customer support

Carrier Benefits
  • Provides AT&T network coverage

  • Prepaid and pay-as-you-go service - no contract, no credit check, and no activation fee

  • Bring your own AT&T phone or unlocked GSM device, or buy one from the selection of h2o Wireless phones

  • Keep your phone number

  • Mobile hotspot/tethering only permitted with Unlimited+ plan

  • Global text and international talk to 70 countries, plus an international talk credit for other locations, included in all monthly unlimited plans

  • Customer support available 24/7 via chat, or 9am - Midnight EST weekdays, 9am to 11pm weekends on the phone

Carrier Features
Plans

Plan

Minutes

Texts

Data

Price

h2o Wireless 2GB Data

Unlimited

Unlimited

2GB

$15*

h2o Wireless 6GB Data

Unlimited

Unlimited

6GB

$22.50*

h2o Wireless 15GB Data

Unlimited

Unlimited

15GB

$30*

h2o Wireless Unlimited Data

Unlimited

Unlimited

Unlimited

$37.50*

* 25% Off for 3 Months

Best AT&T BYOP Plans

Good2Go Mobile - Best AT&T bring your own phone plan

Powered by:
Minutes
Unlimited
Texts
Unlimited
Data
0 GB
Price
$10/mo
Pros & Cons

Pros

  • 4G LTE coverage

  • No contract

  • No credit checks

Cons

  • No unlimited data options

  • No app interface

Carrier Benefits
  • Coverage on the nationwide AT&T & T-Mobile networks

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

  • Bring your own phone or buy a Good2Go Mobile phone

  • Mobile hotspot/tethering not supported

  • International calling to over 60 countries available as affordable plan add-on; calling to other countries via add-on calling card

  • Customer service available by phone 7am - 1am EST every day

Carrier Features
Plans

Plan

Minutes

Texts

Data

Price

Good2Go Mobile Unlimited Talk & Text

Unlimited

Unlimited

0GB

$10

Good2Go Mobile 1GB Data

Unlimited

Unlimited

1GB

$15

Good2Go Mobile 2GB Data

Unlimited

Unlimited

2GB

$20

Good2Go Mobile 6GB Data

Unlimited

Unlimited

6GB

$30

Good2Go Mobile 10GB Data

Unlimited

Unlimited

10GB

$35

Good2Go Mobile 20GB Data

Unlimited

Unlimited

20GB

$45

Read our full Unreal Mobile review

Pros & Cons

Pros

  • No contracts

  • Unlimited everything

  • Good user account dashboard

  • International calling to 80+ countries

Cons

  • Call quality

Carrier Benefits
  • Coverage on the AT&T and T-Mobile networks

  • Prepaid - no contract, credit check, or activation fee

  • 14-day money-back satisfaction guarantee

  • Bring your own compatible device or buy an Unreal Mobile phone

  • Keep your phone number

  • Mobile hotspot/tethering unsupported

  • International calling

  • Virtual international phone number available for 25 countries

  • Customer service via phone from 7am - 5pm PST Monday through Friday

Carrier Features
Plans

Plan

Minutes

Texts

Data

Price

Unreal Mobile 2GB Plan

Unlimited

Unlimited

2GB

$10*

* $5 Off for 1 Month

Unreal Mobile 2GB Plan

Unlimited

Unlimited

2GB

$10*

* $120 for 12 Months Service

Unreal Mobile 2GB Plan

Unlimited

Unlimited

2GB

$13*

* Pay $39 for 3 Months

Unreal Mobile 3GB Plan

Unlimited

Unlimited

3GB

$15*

* $10 Off for 1 Month

Unreal Mobile 3GB Plan

Unlimited

Unlimited

3GB

$15*

* $180 for 12 Months Service

Unreal Mobile 3GB Plan

Unlimited

Unlimited

3GB

$20*

* Pay $60 for 3 Months

Unreal Mobile 12GB Plan

Unlimited

Unlimited

12GB

$25*

* $300 for 12 Months Service

Unreal Mobile 12GB Plan

Unlimited

Unlimited

12GB

$25*

* $10 Off for 1 Month

Unreal Mobile 12GB Plan

Unlimited

Unlimited

12GB

$30*

* Pay $90 for 3 Months
Best AT&T Data Only Plans

Red Pocket - Best AT&T data only SIM card

Powered by:
Minutes
0
Texts
0
Data
5 GB
Price
$25/mo
Pros & Cons

Pros

  • Nationwide coverage

  • No contracts

  • Latest selection of phones

Cons

  • Account dashboard needs work

  • No 0% financing options on latest phones

  • Customer service

Carrier 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

Carrier Features
Plans

Plan

Minutes

Texts

Data

Price

Red Pocket 1GB Data

1000

Unlimited

1GB

$10

Red Pocket 3GB Data

Unlimited

Unlimited

3GB

$19

Red Pocket 10GB Data

Unlimited

Unlimited

10GB

$30

Red Pocket 22GB Data

Unlimited

Unlimited

22GB

$40

Bring your own AT&T phone

Bringing your own AT&T phone to the new carrier is easier than you may think. Once you know that the AT&T coverage serves your area, all you need to do is follow these simple steps:

  1. Pick a carrier. Choose the right AT&T MVNO for your usage and budget. As always, make sure you read all the fine print.

  2. Choose a plan. Now that you know how much data you really need you're totally in control. Pick a plan that meets your needs without costing you extra for unnecessary data.

  3. Check phone compatibility. This really comes down to the type of technology used on the network. AT&T and T-Mobile use GSM vs CDMA which is what Sprint and Verizon Wireless use. If you already own an AT&T device you should be good to go.

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. The original iPhone along with the older iPhone 3G and 3GS all use the original SIM Card, according to Apple.

  • Micro SIM Card - Micro SIM Cards were introduced with the iPhone 4 in 2010. The Micro SIM is also used in the iPhone 4s. 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 the iPhone 5 in 2013. The cards have been in every iPhone since, all the way up to the iPhone 7 Plus.

Apple iPhone SIM card sizes

DEVICESIM CARD SIZE
iPhone SENano SIM
iPhone 6Nano SIM
iPhone 7Nano SIM
iPhone 8Nano SIM
iPhone XNano SIM
iPhone XRNano SIM
iPhone XSNano SIM
iPhone 11Nano SIM
iPhone 12Nano SIM

Samsung Galaxy SIM card sizes

DEVICESIM CARD SIZE
Galaxy S7Nano SIM
Galaxy S8Nano SIM
Galaxy S9Nano SIM
Galaxy S10Nano SIM
Galaxy Note 8Nano SIM
Galaxy Note 9Nano SIM
Galaxy Note 10Nano SIM

How to remove a SIM card

To remove the SIM card from your AT&T phone all you need is the SIM card remover tool provided to you when you bought your phone, 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 prepaid SIM card plan comparison

Carrier

Network

Data

Price

Pure Talk

AT&T

2GB

$15** 25% Off for 3 Months

Red Pocket

AT&T, Verizon, T-Mobile & Sprint

3GB

$19

Unreal Mobile

AT&T

12GB

$25** $10 Off for 1 Month

Good2Go Mobile

AT&T & T-Mobile

0GB

$10

h2o Wireless

AT&T

6GB

$22.50** 25% Off for 3 Months

AT&T prepaid SIM card FAQs

Where can I buy an AT&T SIM card?

You can purchase an AT&T MVNO SIM card online.

How to activate AT&T SIM card?

Pop the new SIM card into your phone and follow the activation instructions.

How much is an AT&T prepaid SIM card?

There's a great choice of low-cost carriers running on the AT&T network with prices starting from around $10.

Does AT&T have prepaid SIM?

Yes. There are many MVNOs that operate on the AT&T network offering prepaid cell phone plans.

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.

AT&T Network Specs

Network:AT&T
Technology:GSM
3G Bands:850, 1900MHz
4G LTE Bands:1900, 1700/2100, 850, 700, 2300Mhz
Bring Your Phone:Yes
Keep Your Number:Yes
Contract:No - Postpaid
Credit Check:Yes
Prepaid:No - Postpaid

AT&T Company Info

Founded:1882
Headquarters:208 S. Akard St. Dallas, TX 75202
Employees:273,000
Customer Service:(800) 331-0500
Website:Go to Website
Wikipedia:Go to Wikipedia
Facebook:Go to Facebook
Twitter:Go to Twitter

Prepaid SIM Card Comparison