Abbreviated Dialing

Telecommunications customers in Michigan can dial the following abbreviated numbers to connect to important information sources: 

• 2-1-1   Non-emergency community/human services
• 3-1-1   Non-emergency government services (community specific)
• 7-1-1   TDD Relay for the deaf and hard-of-hearing
• 8-1-1   Underground utility line location (MISSDIG)
• 9-1-1   Emergency services

9-1-1 Information

• U-15489 County Surcharges - Effective July 1, 2008
• 9-1-1 Charges by County - Effective August 1, 2008
• Communications Provider Surcharge Notice
  • June 2008 Surcharge Notice
• Michigan Emergency Telephone Service Committee
• Emergency 9-1-1 Service Enabling Act - Effective December 21, 2007

Area Code Information

• 517/989 Area Code Map
• 810/586 Area Code Map
• 248/947 Area Code Map
• 616/269 Area Code Map
• 313/734/679 Area Code Map
• Area Code Implementation Schedule