Apple's U.S. exclusive provider AT&T is continuing to expand its network with the acquisition of Aloha Partners' wireless spectrum.

The buy enhances AT&T's network by adding 12 MHz of spectrum covering 196 million people in 281 markets. The spectrum covers many major metropolitan areas, including 72 of the top 100 and all of the top 10 markets in the United States.

The deal should be finalized within six to nine months, pending necessary government approvals.