Where can you find a list of local phone service providers?

As of 2015, lists compiled on Wikepedia.org serve as the most complete source of phone service providers available to consumers; standardized lists are not available to the everyday consumer as of 2015. Wikepedia.org contains lists organized by location, provider type -- such as wireless -- and company.

For example, the list of United States telephone companies as it appears on Wikepedia.org includes companies operating under Regional Bell such as AT&T Inc., Verizon and CenturyLink. It also displays the specific states in which these companies provide services.

Alternatively, a search engine query that includes a specific location, such as city and state or ZIP code, typically yields phone service providers operating in that area.