Where does nextlink internet offer service? Nextlink Internet offers service in 1,106 zip codes nationwide. Whether Nextlink Internet is your internet provider or you use a different provider, the speed test below can show key statistics about your internet connection.How do i contact netlink customer service? 1-866-580-3400. EMAIL ADDRESS. [email protected]. Get In Touch.How is nextlink different from its competitors? Unlike many of our competitors, Nextlink’s approach focuses not only on speed but also on the quality of service offered.What is nextnextlinks wireless backhaul strategy? Nextlink minimizes the number of wireless backhaul connections before its data traffic is transported on its fiber network and also maintains the vast majority of its wireless backhaul connections on licensed links that mitigate interference.