Commonwealth Telephone Directory

Welcome to the Commonwealth of Pennsylvania’s online telephone directory.

2026 Commonwealth Telephone Directory PDF

The Commonwealth Telephone Directory may be viewed online. It is identical to the printed version, but has the ability to be searched and navigated quickly. You do have the option to download the directory to your device. Please note that the print version is updated once per year in the 2nd quarter. It is advised that you check the individual agency listings below for frequent updates that occur after the 2nd quarter updates.

If you are viewing the pdf on a desktop computer, bookmarks will be available for easy navigation throughout the directory. To search the directory, click the magnifying glass, or use Command/Control F to open the search window.

If viewing the pdf on a mobile device, it is recommended that you download the pdf to your device and open it with the Acrobat Reader app. It may be viewed without downloading, but bookmark navigation will be unavailable.

Updates are accepted by the Bureau of Publications Editor only through your Agency's ​Commonwealth Telephone Directory Coordinator on specified dates. If you are a new coordinator, please reach out to the directory editor for further clarification about the process.

State Agencies and Institutions

The Commonwealth Telephone Directory is available and may be ordered by state agencies using PA Publisher. For assistance purchasing the Commonwealth Telephone Directory, contact the Bureau of Publications at (717) 704-1029. The telephone number provided above is not a help desk or switchboard. If you have a question regarding an individual's telephone number, please refer to the departmental listings below.

Online Commonwealth Telephone Directory and Individual Agency Listings

The online directory containing all agencies in one pdf is updated once per year in the 2nd Quarter. The individual agency listings below the compiled directory contain more up-to-date information due to frequent updates that occur after the 2nd Quarter throughout the year.