Information about visiting our museums or archive is here.

The mission of Telecommunications History Group is to acquire, preserve, and promote the rich heritage of the telecommunications industry and to connect that past to evolving technologies and cultures.

Connections Museum Denver is located in the historic 931 14th Street building in Denver; It includes museum space on 14th floor, along with original executive offices and Allen Tupper True murals.

Connections Museum Seattle, formerly the Herbert H. Warrick, Jr. Museum of Communications, boasts an extensive collection of switching equipment, telephones, central office and outside plant equipment. Open every Sunday.

THG Archives, located in Denver, CO, includes historic telephone directories, over 80,000 photographs and slides, historic documents, and other items. Research services are available from our staff or in person by visitors.

The THG Resources is an online collection of research and educational resources, including fascinating stories of the people, places, and items that make the telecommunications history so important and meaningful.

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About Telecommunications History Group

The Telecommunications History Group (THG) was formed by a small group of retired and active telecommunications employees who were shocked and disappointed to learn that many historical items were being discarded and destroyed as buildings were relocated or put out of commission or as people and departments deemed something no longer necessary.

Recognizing the importance of preserving these items for future generations in order to tell the story of telecom, a 501 c (3) non-profit organization began in 1990, and THG was born! Today the organization includes two museums located in Denver and Seattle, and an outstanding archive, which includes both physical items located in Denver as well as digital resources.

THG operates through donations from individuals and companies who share the goal of maintaining the important heritage of telecommunications. Our small but mighty staff is supported by extraordinary volunteers and an active Board of Directors.

Whether you realize it or not, the telecommunications industry has touched and influenced your life. We can’t wait to share our stories, our collections, and our past with you!

Latest News from the THG Blog

NPR reporter Brian Mann visited THG's museum in Seattle in April, and was inspired to create a radio report about what he heard and saw. You can read and ...
We were saddened to learn that Telecommunications History Group's founder and first Executive Director Herb Hackenburg passed away on March 2nd of 2020. By researching and writing his history ...