Photo: The Site of the First Telephone Exchange was demolished in 1973.
NPS Photo
The first commercial telephone exchange in the world began operations on January 28, 1878 in a storefront of the Boardman Building in New Haven. George W. Coy designed and built the world’s first switchboard for commercial use. Coy was inspired by Alexander Graham Bell’s lecture at the Skiff Opera House in New Haven on April 27, 1877.
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