The Federal Communications Commission said Friday it was approving Verizon Communications's $20 billion deal to acquire fiber-optic internet providers Frontier Communications after the largest U.S. telecom company agreed to end its diversity,

The FCC has signed off on the $20 billion Verizon and Frontier Communications merger. This federal agency approval will allow Verizon to significantly expand its fiber reach and subscriber base, which is presently limited primarily to the Mid-Atlantic and Northeast.

Verizon’s $20 billion deal to acquire the fiber internet provider Frontier is officially happening. On Friday, the Federal Communications Commission signed off on the merger, which will allow Verizon to “upgrade and expand” Frontier’s existing fiber networks.