Optimum.com is the official website for Optimum, a provider of high-speed fiber internet, TV packages, and mobile phone services. The site allows users to manage their accounts, check emails, set DVRs, and pay bills online. Optimum offers fiber internet with speeds up to 8 Gig, live and on-demand TV, and the latest 5G mobile phones. The service boasts 99.9% network reliability and provides 24/7 support with over 150 stores nationwide for in-person assistance. Additionally, Optimum offers transparent pricing with no hidden fees and a 60-day money-back guarantee.