Telecom network operator Sprint Corp said it has shut down call centers and cut at least 2,500 jobs across six customer care centers and its Kansas headquarters.

The job cut at Sprint, which competes with Verizon, AT&T and T-Mobile, is part of its plan to reduce $2.5 billion in costs. Sprint – owned by SoftBank of Japan — is the fourth-largest U.S wireless carrier. The wireless data pricing strategy did not assist Sprint to take on its rivals in a big way.

The job reduction, mostly in customer service, also includes 574 positions at Sprint’s headquarters at Overland Park, Kansas.

Sprint spokeswoman Michelle Boyd said the telecom network operator has shut down call centers in Virginia, New Mexico, Tennessee and Texas and cut back jobs at its Colorado and Overland Park call centers.

The telecom company is aiming to reduce costs involved in labor, network, information technology and administrative to reduce costs to the tune of $2.5 billion.

Sprint has a workforce of 33,000 till December 31, 2015.

Sprint subscribers are increasingly using the Sprint Zone app and going online for their customer care needs and the jobs cuts were made in response to that trend.

In November 2014, Sprint said it would fire 2,000 employees. In October 2014, the company launched a previous round of layoffs and shed about 1,700 jobs.