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How to Determine Your Local Calling Area

With the rapid addition of new area codes and telephone prefixes, it's getting harder to tell if a number is a local call for you or a toll call. The rapid increase of cell phone utilization has made this even more complicated. More and more people are dialing phone numbers that they think are local, only find out later—when they receive their bill—that they were toll calls.

If you'd like to avoid these "surprises" on your phone bill, you need to know before you place a call if it is a local or toll call for you. ITCom has compiled the telephone exchanges under the local area codes for each of the three campuses.

A telephone call made from any U-M campus telephone on the U-M Ann Arbor, Dearborn or Flint campus to a U-M Ann Arbor, Dearborn or Flint campus local calling area is charged as a local call.

Telephone calls made from U-M Ann Arbor campus non-student telephones to an Ann Arbor local calling area number are charged for a local call. There is no charge for telephone calls made from U-M Ann Arbor campus student telephones to an Ann Arbor local calling area number.

Local Calling Areas by Campus:

Ann Arbor Campus

Dearborn Campus

Flint Campus

Caller ID Display information for all U-M outbound calls:

U-M Ann Arbor campus phones to:

Ann Arbor local calling exchanges:   734-647-0000   Univ of Mich

Dearborn local calling exchanges:   313-593-5600   Univ of Mich

Flint local calling exchanges:   810-766-6600   Univ of Mich

Any other long distance number:   734-647-0000   Univ of Mich

U-M Dearborn campus phones to:

U-M Flint campus phones to:

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