Is Verizon CDMA or GSM in 2024? Everything You Need to Know

ByCharles Scott Last Update on

Verizon has built a reputation for reliable nationwide coverage and fast speeds. But before you switch carriers, you may be wondering: is Verizon a CDMA or GSM network? With Verizon discontinuing 3G CDMA in 2022, what does this mean for your existing phone?

I‘ll explain the differences between these two network technologies and what phones will work on Verizon‘s network going forward.

A Brief History of CDMA vs. GSM

First things first – what do CDMA and GSM even stand for?

  • CDMA: Code Division Multiple Access
  • GSM: Global System for Mobile Communications

When cell networks first launched in the 1980s, CDMA was the newer, more advanced system. Verizon chose CDMA since it offered better call quality and more capacity than the older GSM standard [1].

However, GSM eventually became the more globally popular option. As LTE networks were built out, Verizon began supporting both CDMA and GSM so phones could roam between networks.

By the Numbers: Verizon‘s 3G CDMA Shutdown

Verizon has announced they will shut down their aging 3G CDMA network by the end of 2022 [2]. This will impact around 1% of customers still using older 3G devices.

  • As of first quarter 2022, Verizon had 93.5 million retail postpaid connections [3].
  • Approximately 1 million of those connections are on 3G devices that will no longer work after the shutdown.
  • Verizon has been encouraging affected customers to upgrade to newer LTE-compatible phones.

If you have an older 3G phone, it will need to be upgraded soon to avoid losing service. Luckily most people have already moved on to more advanced smartphones.

Will GSM Phones Work on Verizon‘s Network?

The answer is yes – if your GSM phone also supports CDMA bands. Most modern smartphones contain radios for both network technologies.

Benefits of using a GSM phone on Verizon:

  • Global roaming: You can use the same phone abroad on GSM networks.
  • Unlocking: GSM phones are easier to unlock to switch carriers.
  • Wider selection: More unlocked phones are available with GSM support.

Downsides of GSM phones on Verizon:

  • Coverage limitations: Your phone needs to support Verizon‘s CDMA bands to access their full network domestically.
  • 3G CDMA fallback: GSM-only phones lose the ability to fallback to 3G CDMA in areas lacking LTE coverage.

My advice is to check that any unlocked GSM phone you bring to Verizon also includes CDMA support to ensure optimal coverage.

The Shift to 4G LTE and 5G

Modern Verizon devices use advanced LTE technology for 4G and 5G instead of traditional CDMA or GSM.

  • 4G LTE stands for Long Term Evolution. While based on GSM standards, it uses entirely new infrastructure.
  • 5G utilizes a new OFDM radio access technology and core network architecture.

In fact, Verizon‘s ultra wideband 5G is available to over 100 million Americans in over 1,700 cities across the country. 5G provides the fastest speeds and lowest latency on a nationwide scale.

Both 4G LTE and 5G devices will continue working on Verizon’s network after the 3G CDMA shutdown.

FAQ: Your Most Common Questions Answered

Still have questions about Verizon‘s network technologies? Here are answers to some of the most frequently asked questions:

Q: How do I know if my phone is CDMA or GSM?

A: On iPhones look for IMEI (GSM) or MEID (CDMA). On Android phones check for IMEI, MEID, or ESN numbers under "About Phone."

Q: What if my phone only supports GSM?

A: Unfortunately, GSM-only phones will not work on Verizon‘s network since it still uses CDMA technology. Both standards are required.

Q: Are 4G or 5G networks considered CDMA or GSM?

A: Neither – they use entirely new and advanced cellular technologies called LTE and OFDM.

Q: What should I do if my 3G phone stops working after the CDMA shutdown?

A: You‘ll need to upgrade to a newer 4G LTE or 5G capable smartphone to continue receiving service on Verizon past the shutdown date.

The Bottom Line

While Verizon is still fundamentally a CDMA network, most customer devices today support both CDMA and GSM. The imminent shutdown of their 3G network marks the end of an era for the company.

Going forward into the 5G future, the difference between older network technologies matters less. Just make sure any new phones you purchase are LTE-capable to experience the full speed and coverage of Verizon‘s network.

Charles Scott is a dynamic professional whose academic and career achievements demonstrate a strong commitment to excellence in the retail and consumer service industry. Graduating with an MBA from New York University in 2013, Charles has built a diverse and impressive career portfolio. He has held significant roles as a manager, advisor, and marketer, showcasing his multifaceted skills and deep understanding of the industry.

Beyond his direct professional engagements, Charles has made a notable mark as the head writer and founder of ExpertBeacon.com. This platform stands as a testament to his dedication to consumer empowerment and education. ExpertBeacon.com is a resource designed to assist consumers in addressing their persistent questions about products, services, and companies. Under Charles's leadership, the site provides in-depth, well-researched, and accurate information, all structured in easy-to-follow guides and articles. His work here not only highlights his expertise in the field but also his commitment to providing valuable, actionable information to the public.

Charles's approach is centered on a keen understanding of consumer needs and market dynamics, making him a respected voice in the industry. His contributions through ExpertBeacon.com and his professional roles reflect a blend of strategic thinking, practical knowledge, and a genuine desire to enhance consumer experiences in the retail and consumer service sectors.

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