CenturyLink (NYSE:CTL) says it now offers fiber-based 1 Gbps Internet speeds to small and mid-sized business (SMB) locations in 17 states, as well as residential customers in 11 cities.

The telco is launching symmetrical gigabit fiber service to SMB customers in parts of Iowa, Idaho, North Carolina, Ohio and Wisconsin and expanding its availability in nine of the 12 states where CenturyLink initially deployed gigabit fiber for business customers in 16 cities in August 2014.

CenturyLink provides 1 Gbps speeds in parts of Arizona, Colorado, Florida, Minnesota, Missouri, Nebraska, Nevada, New Mexico, Oregon, South Dakota, Utah and Washington.