Verizon ramping up network speed with new XLTE

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Verizon launched a new campaign on Monday to let users know that the company's network is being freed up in a big way, giving users faster access to data on their smartphones and tablets.

The initiative is called XLTE, an extra-fast version of LTE, which is the latest fourth-generation network technology.

The company has been working to improve the speed on its network. In 2012, it purchased a large amount of spectrum from cable providers, including CNBC owner Comcast, Time Warner Cable and Cox. Last year, it began upgrading its LTE cell sites with new equipment so that it could use that spectrum to speed up data on the network and give customers access to XLTE, according to The New York Times.

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Not all cities have access to XLTE yet, though, and not all devices are compatible.

There are about 260 markets and 100 devices that will be able to access XLTE, according to Verizon's website.

Some devices that are ready for XLTE include Apple's iPhone 5S, Samsung's Galaxy S4 and S5.

For a full list of the cities with access to XLTE, click here.

For a list of devices that are compatible with the network technology, click here.

By CNBC's Cadie Thompson.