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Best CDMA SIM Card

Prepaid CDMA SIM card plans starting at $10

Nationwide Coverage4G LTE Data SpeedKeep Your Phone & NumberNo Contract
Best 1GB Plan
1GB LTE Data
$10 per month
Powered by:Sprint

See Deal

Best 3GB Plan
3GB LTE Data
$15* per month
Powered by:VerizonSprint

See Deal

* 25% Off for 6 Months
Best 8GB Plan
8GB LTE Data
$30* per month
Powered by:Verizon

See Deal

* $15 Off for 3 Months
Best Unlimited Plan
Unltd LTE Data
$40 per month
Powered by:VerizonT-Mobile

See Deal

Free Starter Kit with code: MSPUSM
Check Coverage
It's never been easier to switch your carrier & saveSave up to $600 a year
Starting at$5*
Powered by:AT&TSprintT-MobileVerizon
1GB Data* $5 Off in 1st Month1,000Unlimited1GB$5*
3GB Data* $14 Off in 1st MonthUnlimitedUnlimited3GB$5*
10GB Data* $25 Off in 1st MonthUnlimitedUnlimited10GB$5*
22GB Data* $35 Off in 1st MonthUnlimitedUnlimited22GB$5*
Unlimited DataUnlimitedUnlimitedUnlimited$60

Twigby CDMA SIM Card

* 25% Off for 6 Months
Starting at$7*
Powered by:VerizonSprint
300 Mins & Unlimited Texts300Unlimited0GB$6.75*
500 Mins & Unlimited Texts500Unlimited0GB$8.25*
Unlimited Talk & TextUnlimitedUnlimited0GB$9.75*
3GB DataUnlimitedUnlimited3GB$15*
5GB DataUnlimitedUnlimited5GB$18.75*
10GB DataUnlimitedUnlimited10GB$26.25*
Starting at$8
Powered by:Sprint
Unlimited Talk & TextUnlimitedUnlimited0GB$8
1GB DataUnlimitedUnlimited1GB$10
2GB DataUnlimitedUnlimited2GB$14
4GB DataUnlimitedUnlimited4GB$19
6GB DataUnlimitedUnlimited6GB$24
8GB DataUnlimitedUnlimited8GB$29
Unlimited DataUnlimitedUnlimitedUnlimited$39

US Mobile CDMA SIM Card

Free Starter Kit with code: MSPUSM
Starting at$10
Powered by:VerizonT-Mobile
Unlimited Talk & TextUnlimitedUnlimited0GB$10
2.5GB DataUnlimitedUnlimited3GB$15
10GB DataUnlimitedUnlimited10GB$30
Unlimited DataUnlimitedUnlimitedUnlimited$40
Starting at$10
Powered by:SprintT-MobileVerizon
Unlimited Talk & TextUnlimitedUnlimited0GB$10
5GB DataUnlimitedUnlimited5GB$25
Unlimited DataUnlimitedUnlimitedUnlimited$45
Starting at$15
Powered by:Verizon
1GB Data* Available to Xfinity Internet CustomersUnlimitedUnlimited1GB$15*
3GB Data* Available to Xfinity Internet CustomersUnlimitedUnlimited3GB$30*
Unlimited Data* Available to Xfinity Internet CustomersUnlimitedUnlimitedUnlimited$45*

Reach Mobile CDMA SIM Card

* $15 Off for 3 Months
Starting at$15*
Powered by:Verizon
3GB DataUnlimitedUnlimited3GB$15*
8GB DataUnlimitedUnlimited8GB$30*
12GB DataUnlimitedUnlimited12GB$40*
Unlimited DataUnlimitedUnlimitedUnlimited$50*

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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.

Find Cheap Cell Phone Plans in Your Area
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It's never been easier to switch your carrier & save
Stop the Unlimited Data Plan Rip Off!
T-MobileT-Mobile 4G LTEUnlimited*$70/mo$840/yr
Mint MobileT-Mobile 4G LTE8GB$20/mo$240/yr
*Avg. T-Mobile unlimited plan customer uses 5GBSavings$50/moAnnual Savings$600/yr
3 Simple Steps To Switch & Save
Choose a Custom PlanDon't pay for data you don't use
Bring Your Own PhoneKeep your phone & number
Insert SIM & ActivateInsert your new SIM card & activate

CDMA SIM cards

CDMA stands for Code Division Multiple Access. It's one of the main technologies used for cell phone service in the US. You also may have heard of GSM, which is the other technology used worldwide for cellular service. Which network you use depends on your carrier.

Verizon and Sprint hook onto the CDMA network while T-Mobile and AT&T use GSM.

There are some great deals to be had with low-cost online carriers, known as MVNOs. These piggyback onto the main networks using CDMA technology. You can save up to 50% off your cell phone bill with one of these prepaid carriers.

Switch & Save $600/yr - Calculate Your Savings

CDMA SIM card benefits

  • Powered by the major US networks: CDMA MVNOs provide wireless plans on the same major telecoms service you can trust. Sprint and Verizon are the two networks that run on CDMA.
  • Save up to 50%: cut your cell phone bill in half and only pay for what you need.
  • No contracts: if you're not happy you can cancel at any time. No early termination fees.
  • Keep your phone: you can bring your own phone and keep your number with a hassle free switch over. Saving even more money.

Best Verizon CDMA SIM card

Reach Mobile - 8GB Data* $15 Off for 3 Months
8 GB4G data
$30*per month$45/mo
Powered by:Verizon

Verizon vs Reach Mobile Plan Comparison

Keep your Verizon phone, number & coverage: Save $465 per year

CarrierNetwork Coverage4G LTE DataPriceAnnual Cost
VerizonVerizon 4G LTEUnltd*$80/mo$960/yr
Reach MobileVerizon 4G LTE8GB$45/mo$495/yr
*Don't waste money on unlimited data - Avg. data usage is only 3-5GBSavings$35/mo$465/yr

Best Sprint CDMA SIM card

4 GB4G data
$19per month
Powered by:Sprint

Sprint vs Tello Plan Comparison

Keep your Sprint phone, number & coverage: Save $492 per year

CarrierNetwork Coverage4G LTE DataPriceAnnual Cost
SprintSprint 4G LTEUnltd*$60/mo$720/yr
TelloSprint 4G LTE4GB$19/mo$228/yr
*Don't waste money on unlimited data - Avg. data usage is only 3-5GBSavings$41/mo$492/yr

What is a CDMA SIM card?

Using a SIM card makes it easier to switch plans between phones and carriers. This tiny card stores all your information, including contacts and personal data. It connects you to your carrier's network.

There are three different SIM card sizes and you'll need to check which one your phone uses before switching providers.

The three types of SIM cards are;

  • Standard SIM
  • Micro SIM
  • Nano SIM

Nano SIM is the most common and is used in the latest smartphones including newer Apple iPhone and Samsung Galaxy models.

How to switch to a CDMA carrier

Switching providers can be a great way to save money. There's a range of low-cost alternative carriers that hook onto the main US networks. Sprint and Verizon are the two networks running on CDMA. This means you can get the same great service you love. Plus, with a low-cost carrier you only pay for what you need.

Most online carriers encourage you to bring your own phone. This is a great way to save money. If your phone is already with Verizon or Sprint you should have no problem bringing your device across to a CDMA SIM card.

However, some phones are locked to the carrier's network. Make sure to check your phone is unlocked before bringing it across. You can check your phone's compatibility by heading over to the carrier's website.

Things to figure out before you switch

    • How much talk, text and data do you need? With low-cost online carriers you can tailor a plan to your needs. By keeping track of your usage you can save money and easily update your plan if needed. To check your average data you can use our data usage tool.
    • Bringing your own phone? If your phone is unlocked and compatible with a CDMA SIM card this is a great way to save money.
    • Who offers the best coverage? You can use our coverage map to find out which network and carrier works best in your area.

Which carriers are CDMA?

Below is a list of CDMA alternative carriers piggybacking off the Verizon and Sprint network. Make sure to check our coverage map if you're not sure which network is the best for your area.

You'll be sent a CDMA SIM card kit in the post from your new carrier that you can pop into your phone with simple activation instructions. If you're not sure if your phone is compatible, make sure to check the carrier's site before signing up.

Don't worry if your phone isn't compatible. You can still save money with a refurbished phone. Check out some of the latest refurbished phone deals.

Verizon CDMA network carriers

Sprint CDMA network carriers


Is CDMA better? Whether CDMA or GSM is better comes down to personal choice and depends on what your cell phone needs are.

To fully understand how these two work, we need to talk about the (relatively) new tech in town; LTE.As we became hungrier for faster, more reliable data speeds, the LTE network was born. It was created for data only, but relies on GSM and CDMA for voice and text. CDMA and GSM fill in the gap when 4G LTE is not available.

The GSM network is used worldwide, so this makes it a good choice if you're a frequent traveler. You can save money with a GSM phone by buying a local SIM from the country you're visiting.

CDMA phones once stored data on the phone directly, rather than a SIM card. However, phones made in the last few years are already unlocked. They run on both the CDMA and GSM network to work alongside LTE.


There's a number of options with a CDMA SIM card and plenty of cheap cell phone plans that can save you money on your phone bill.

All of the providers encourage you to bring your own phone, but make sure to check with the carrier that your phone is compatible. You can also check out our guide on how to unlock your cell phone.

Still can't decide? Pop over to the prepaid phone plans page with deals from all low-cost carriers on both the CDMA and GSM network.

Joanne Wilkes
Joanne Wilkes

Jo has been helping people save money in the US and UK since 2012 in the internet, TV and cell phone industries. She loves helping people get the best value for their budget without the stress.


What is a CDMA SIM card?

A SIM (Subscriber Identity Module) card is a removable memory chip that stores information unique to the cell phone user.

What does a CDMA SIM card do?

Cell phones need a SIM card in order to connect to a phone network in order to make calls.

How do I remove a CDMA SIM card from my phone?

The position of the access cover varies by phone but it’s usually on the side of the device. To remove the SIM card, use an eject tool or paper clip and push to release the SIM card tray.

How do I insert a CDMA SIM card into my phone?

The position of the access cover varies by phone but it’s usually on the side of the device. Place the new SIM card into the SIM card tray and slide the tray into your phone.

What SIM card size do I need?

There are 3 SIM card sizes: standard, micro and nano SIM. All phones released since 2014 (Apple iOS and Android) now support the nano SIM card. Older phones will require either the standard or micro SIM card but most MVNOs will send out a SIM card that can be adapted to all 3 sizes.

How much does a CDMA SIM card cost?

The cost of the CDMA SIM card varies between carriers. Typically, the cost is $4-5 but some carriers offer free SIM cards with their prepaid cell phone plans.

Where can I buy a new CDMA SIM card?

You can purchase a CDMA SIM card online or in a cell phone or electronics store.

How do I activate my new CDMA SIM card?

Activating your new CDMA SIM card is straight forward. When you receive your SIM card, contact the carrier and they will talk you through the activation process.

How do I configure my new CDMA SIM card?

You may need to adjust the APN settings on your phone. The carrier will help you with this during activation.

Will my device work with a CDMA SIM card from another carrier?

Any unlocked device with a CDMA SIM card slot should work. However, phone compatibility does vary by exact device and carrier, so it’s important to check that your phone is supported on the carrier website, prior to ordering a new SIM card.

Can I keep my phone number when I switch the SIM card?

Yes, it’s simple to transfer your phone number when you bring your phone to a new carrier.

Do these low-cost carriers provide cell phone coverage in my area?

Although you may not be familiar with some of the carriers, all MVNOs are powered by one or more of the 4 major networks (Verizon, T-Mobile, AT&T and Sprint). Therefore, you should not experience any loss in service.

Prepaid SIM Card Comparison

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