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CDMA SIM card bring your own phone plans

Nationwide Coverage4G LTE Data SpeedKeep Your Phone & NumberNo Contract
Best No Data Plan
0GB LTE Data
$0* per month
Powered by:Sprint

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* $20 Off for 6 Months

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:Verizon

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* 25% Off for 6 Months

Best Unlimited Plan
Unltd LTE Data
$40 per month
Powered by:Verizon

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Free Starter Kit with code: MSPUSM


Ting CDMA SIM Card

* $20 Off for 6 Months
Starting at$0*
Powered by:SprintT-MobileVerizon
500 Mins & No Data5001,0000GB$0*
500 Mins & 500MB Data5001,0000.5GB$10*
100 Mins & 1GB Data1001,0001GB$10*
100 Mins & 2GB Data1001,0002GB$14*
500 Mins & 1GB Data5001,0001GB$16*
1000 Mins & 500MB Data1,0001,0000.5GB$19*
500 Mins & 2GB Data5001,0002GB$20*
Starting at$10
Powered by:Sprint
1GB DataUnlimitedUnlimited1GB$10
4GB DataUnlimitedUnlimited4GB$19
Unlimited Talk & TextUnlimitedUnlimited0GB$8
500MB DataUnlimitedUnlimited0.5GB$9
2GB DataUnlimitedUnlimited2GB$14
6GB DataUnlimitedUnlimited6GB$24
8GB DataUnlimitedUnlimited8GB$29
Unlimited DataUnlimitedUnlimitedUnlimited$39

US Mobile CDMA SIM Card

Free Starter Kit with code: MSPUSM
US Mobile
Starting at$10
Powered by:VerizonT-Mobile
Unlimited DataUnlimitedUnlimitedUnlimited$40
10GB DataUnlimitedUnlimited10GB$30
Unlimited Talk & TextUnlimitedUnlimited0GB$10
2.5GB DataUnlimitedUnlimited3GB$15
Red Pocket Mobile
Starting at$10
Powered by:AT&TSprintT-MobileVerizon
500MB Data5005000.5GB$10
1GB Data1,000Unlimited1GB$15
3GB DataUnlimitedUnlimited3GB$19
8GB DataUnlimitedUnlimited8GB$30
10GB DataUnlimitedUnlimited10GB$40
20GB DataUnlimitedUnlimited20GB$40
Unlimited DataUnlimitedUnlimitedUnlimited$60

Twigby CDMA SIM Card

* 25% Off for 6 Months
Starting at$15*
Powered by:VerizonSprint
3GB DataUnlimitedUnlimited3GB$15*
5GB DataUnlimitedUnlimited5GB$18.75*
300 Mins & Unlimited Texts300Unlimited0GB$6.75*
500 Mins & Unlimited Texts500Unlimited0GB$8.25*
Unlimited Talk & TextUnlimitedUnlimited0GB$9.75*
10GB DataUnlimitedUnlimited10GB$26.25*
Xfinity Mobile
Starting at$15
Powered by:Verizon
Unlimited Data* Available to Xfinity Internet CustomersUnlimitedUnlimitedUnlimited$45*
1GB Data* Available to Xfinity Internet CustomersUnlimitedUnlimited1GB$15*
3GB Data* Available to Xfinity Internet CustomersUnlimitedUnlimited3GB$30*

Reach Mobile CDMA SIM Card

* $15 Off for 3 Months
Reach Mobile
Starting at$20*
Powered by:Verizon
3GB DataUnlimitedUnlimited3GB$20*
5GB DataUnlimitedUnlimited5GB$30*
10GB DataUnlimitedUnlimited10GB$45*
Unlimited DataUnlimitedUnlimitedUnlimited$55*

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Prepaid CDMA Phone Plans

You have probably heard of inserting your SIM card when activating service with your carrier network, no matter the device. It could be your phone, your tablet, or whatever - it's a useful piece of universal equipment.

However, what exactly is a SIM card? Furthermore, since SIM cards are both used by GSM and CDMA networks, what are GSM and CDMA networks? Better yet, which MVNOs are compatible with CDMA SIM cards?

Within this guide, you'll find information relating to the definition of the SIM card, what carrier networks are compatible with the CDMA network, the differences between GSM and CDMA, and the Internet of Things.

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What Is a SIM Card?

So what exactly is a subscriber identity module card? Well, a subscriber identity module (SIM) card is a type of smart card created for mobile devices. This tiny card contains your unique profile - in other words, your identification number, your personal data such as contacts, and more.

This card also helps you connect with your mobile phone service provider, allowing you to be part of its network.

To put it simply, the SIM card provides all the information a mobile network needs. It lets you know who you are and whether or not you have permission to access the network.

Additionally, you should be aware that there are different mobile SIM card sizes. Depending on your cell phone model and the size of the SIM card slot, you may need a standard SIM, micro SIM, or nano SIM card. And just what are the differences between the sizes?

Well, the standard SIM represents the second generation of SIM cards, measuring 25mm x 15mm x 0.76mm. The micro SIM is the third generation of SIM cards, measuring 15mm x 12mm x 0.76mm. Finally, the nano SIM acts as the fourth generation of SIM cards, measuring at 12.3mm x 8.8mm x 0.67mm.

Switching Providers

At one point in your life, you'd probably like to bring your own phone when you switch service providers. Well luckily for you, the SIM unlocking process is quite simple. All you need to do is visit your carrier and they will unlock your phone for you!

However, it should be noted that your carrier sometimes won't unlock your phone. When won't they? Well, for instance, you could owe $200 on your phone before you officially own the phone. In that case, the carrier network may not provide you with the unlock code.


GSM and CDMA are two different mobile phone technologies. GSM stands for Global System for Mobile Communications. CDMA, on the other hand, stands for Code Division Multiple Access. GSM is more globally accepted compared to CDMA. But the difference lies in the method of radio wave conversion - yes, the same radio waves that your cell phone broadcasts.

With a GSM carrier, the frequency bands are divided so that multiple users use a tower simultaneously. CDMA networks, on the other hand, layer digitized calls over each other and unpack them on the back end thanks to the issuance of sequence codes. So when you think of CDMA, you think of layers. With GSM, you should think of a square divided up into equal bars.

Yet, as far as carriers go, who relies on what technology?

Well, Verizon and Sprint both rely on CDMA technology, while AT&T and T-Mobile networks use GSM technology. So expect GSM SIM cards with AT&T and T-Mobile networks, but CDMA SIM cards with Verizon and Sprint for your CDMA phone.

You'll notice that when you bring your own phone to a GSM network that you'll need a GSM phone. So be sure to check whether or not you have a GSM phone or CDMA phone with the carrier's official network compatibility page.


Below, you'll find a list of the MVNOs that are compatible with the CDMA carrier LTE network.

There are tons of CDMA compatible MVNOs, but the above list are some of our favorites. Check them out for our in-depth reviews and find a great cell phone plan that fits your budget.

Smart Device SIM

More and more devices are now being connected to each other. For instance, your iPhone is connected to your Apple Watch, exchanging information. Or perhaps your car is tied to your Android device. This is commonplace in the modern world. This is also known as the Internet of Things.

The Internet of things is the inter-networking of physical devices, vehicles, buildings and other items embedded with electronics, software, sensors, actuators, and network connectivity which enable these objects to collect and exchange data.

Let's refer to this example: your smartwatch and your smartphone. To put it simply, your smartwatch - say the Samsung Gear S2 - is tied to your smartphone. Not only does your smartwatch show you notifications like text messages, the weather and more, but it can help record your activity, which can be relayed to your smartphone.

Of course, there are many more devices that are integrated with each other. Another relevant example is SIM cards. Nowadays, they are not only used in mobile phones but also inside GPS trackers, smartwatches, tablets, and more.

Overall, you should be aware that your SIM card is a valuable piece of plastic, containing your unique identity within these items. While losing the SIM card isn't as detrimental as losing your social security card, it still is an important tool.

Not only that but there are some carrier networks, like US Mobile and TPO Mobile, that offer SIM cards specifically for non-smartphones.


As you can tell, there are plenty of mobile providers that rely on CDMA technology.

Otherwise, you'll likely find yourself purchasing either an unlocked phone from a retailer or directly from the official carrier website, which can be expensive.

SIM cards are useful for giving a data plan to a plethora of devices such as activity trackers, alarm systems, smartwatches, and more.

Michelle McLean

Michelle McLean


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.

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