Verizon Wireless has informed employees Wednesday that its national operation will be reorganized resulting in significant job cuts.

The nation’s largest wireless carrier also operates 20 regional offices to handle everything from operations to call center functions. Verizon intends to cut that number to six, with employees likely offered a limited number of positions if they agree to relocate. Verizon has a workforce of 177,900 as of the end of the third quarter. Sales and retail store employees will be unaffected in this round of job cuts.

Verizon will not be passing any savings from the cost cuts on to customers. In fact, the company recently announced rate increases of $20 a month for its remaining unlimited data plan users.

With almost 70 percent of Verizon’s revenue now coming from its highly profitable wireless operations, a reduction in regional offices could prove disruptive, especially if it results in a reduction in customer service representatives. Verizon would not specify exactly how many positions will be cut or how much was likely to be saved by consolidating offices, or which would be closed.