In what year did the Southern New England Telephone Company, formerly the District Telephone Company of New Haven, establish operations in the area?
The Southern New England Telephone Company (SNET) began operations in the city as the District Telephone Company of New Haven in 1878; the company remains headquartered in New Haven as a subsidiary of AT&T Inc., now doing business as AT&T Connecticut, and provides telephone service for all but two municipalities in Connecticut.