Telephone
- Southern Door County is served by Century-Tel
- Portions of Northern Door County are served by Frontier Communications
- The central section of the County, including the City of Sturgeon Bay, is served by AT&T
- Charter Communications offers phone service as part of their Voice/Data/Video “triple play” services, where available.
Internet Connectivity
- Charter Communications serves Sturgeon Bay and parts of Northern Door with cable internet service.
- AT&T offers DSL within a three-mile radius of downtown Sturgeon Bay.
- Door County Computer provides dial-up and wireless service to selected parts of the County.
- Door Peninsula Internet has dial-up and wireless services.
- Infinity Technologies offers dial-up and higher speed services.
- Century-Tel offers DSL service to selected parts of Southern Door County.
- Cellcom offers wireless internet connectivity.
- Washington Island Electric Cooperative, Inc. offers “broadband over powerlines” service to the island community.
