Spectrum Round Rock 3 years ago ID: #386427 Listed In : Business & Services Internet Telecom Service 1310 Round Rock Ave Round Rock TX 78681 (512) 501-1298 Business Description Up to the present time, Spectrum has been functioning in upgrading its service as the Best cable company in Round Rock, TX. Apart from that, Spectrum Cable Companies offer a free modem and free antivirus software. Reviews & Ratings Write a Review No Review. Please login / register to add your review. Tags : Internet Service Providers Satellite Television Services Cable company Broadband Services