Description Nicholville Telephone Company is an independent phone company serving a 200-square mile area of northwestern St. Lawrence County in New York. The company offers local dial-tone, long-distance service, and paging, as well as wireless mobile service from AT&T Mobility (formerly Cingular Wireless). Through its Slic.net and Slic Network Solutions subsidiaries, it provides dial-up and high-speed DSL Internet access.