Denver, Colorado.

Arvada

We currently hope to be able to open our new museum by the end of 2026, but we're still in the early stages of planning and development. Thank you for your patience, and all your support.

Please consider making a donation to help support our mission and ensure opening our brand new museum will have a lasting impact, and sign up here if you'd like to be one of our early volunteers and help build our new museum!

→ Watch our announcement YouTube video series!

Downtown

Connections Museum Denver resides in a place of honor among telecom history locations. The 1929 Mountain States Telephone and Telegraph Company Headquarters building at 931 14th Street was deemed “Colorado’s Bell System Palace.” Finished shortly before the stock market crash of 1929, it represented a symbol of the power of industry and technology and has long been an important landmark in Denver.

This museum is located on the prestigious 14th floor of the historic building, and shares the floor with the former executive offices from the phone company’s past. A private tour of the museum space includes a tour through the elegantly furnished executive offices and takes advantage of enjoying the impressive architecture and original murals created by famed Colorado artist Allen Tupper True.

Connections Museum Denver is open for tours. It is located within a secure communications facility, so tours are limited and all adult tour members must bring a picture ID.

Please contact us at (303) 296-1221 or denver@connections.museum to arrange a tour.

Museum Gallery

For a taste of what you can see at Connections Museum Denver, please browse the images below. For a full virtual tour of the old phone company building at 931 14th St, see our online exhibit. ፠ Full online exhibit.

Archives

Begun in 1990, the THG Archives has grown to become one of the nation’s largest industry archives, and includes documentation of the telecom industry from its inception in 1876 through the present time. It is especially strong in its documentation of companies from the midwest and western states.

A portion of our collection is available for viewing online. Browse our online archives.

What you will find...

• Telephone directories — our collection consists of over 10,000 Bell System and Regional Bell Operating Company phone books from 1890 through the present, representing Arizona, Colorado, Idaho, Iowa, Minnesota, Montana, Nebraska, New Mexico, North Dakota, Oregon, South Dakota, Utah, Washington, and Wyoming.
• Photographs — Our photograph collection consists of over 100,000 prints and 20,000 negatives from as far back as 1876.
• Historic documents — Records from over 500 historic telephone companies (and several currently operational companies) west of the Mississippi. These include ledgers, articles of incorporation and dissolution, Board meeting minutes, correspondence, stock certificates, and other documentation.
• Serials – Union publications and Telephone Pioneer and company newsletters and magazines from 1900 to the present.
• Memoirs, scrapbooks, unpublished manuscripts, and oral histories from telephone company executives and employees.
• Policies and procedures – Regional Policies and Procedures, Interdepartmental Memos, Bell System Practices, Records Retention Schedules, etc.
• Audio and video recordings — advertising, training, etc. (more than 15,000 videotapes films, and DVDs and nearly 5,000 audiotapes).
• An extensive reference library of publications about the industry.
• Current events — We track—via public records such as news clippings and financial reports—nearly 3,000 current telephone, wireless, manufacturing, internet, and interactive cable companies around the world, as well as industry-related legislation, trends, and statistics.
• Ephemera — including toys, promotional material, service awards, postcards, and whatever else you can think of that relates in some way to telecommunications.

Research

The THG Archives is located at 1425 Champa Street in Downtown Denver and is open to qualified researchers by appointment. THG staff provides research services to customers who are unable to personally access the archives.

To schedule an appointment please call us at (303) 296-1221 or email us at denver@connections.museum.

By scheduling a visit, you agree to the following policies:

• No food or drinks are allowed in the research area.
• No pens may be used while performing research. We will provide you with a pencil if needed.
• To protect the documents and photographs, you may not wear gloves or use hand sanitizer while handling archive materials. Please wash your hands frequently using soap and water instead.
• A fee of $20 per four-hour session (plus any copying charges) will apply. This should be paid at the time of your visit.