🇺🇸Michigan (MI) Calling Guide

Call Michigan
Area Codes Online

Connecting to the Great Lakes State? Whether it's Detroit (313), Grand Rapids (616), or the Upper Peninsula (906), make instant HD calls directly from your browser.

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How to Call Michigan

Dialing instructions for calling Michigan landlines and mobiles from anywhere in the world.

1

Exit Code

If calling from abroad, dial your country's exit code (e.g., 00 for Europe).
Skip this if calling from within USA/Canada.

2

US Code (+1)

Dial +1. This is the country code for the United States, including Michigan.

3

Area Code

Dial the 3-digit Michigan area code (e.g., 313) followed by the 7-digit number.

10-Digit Dialing is Mandatory

Due to the addition of overlay codes (like 947 over 248, and 679 over 313), you must dial the full Area Code + Phone Number even for local calls within Michigan.

Michigan Area Codes List

Find the right code for the city or region you are calling.

Region/CityCode
Detroit, Dearborn, Grosse Pointe
Urban
313
Oakland County, Troy, Pontiac
Suburban
248
Ann Arbor, Ypsilanti, Monroe
University/Suburban
734
Grand Rapids, Holland, Greenville
West MI
616
Lansing, Jackson, Capital Region
Central
517
Region/CityCode
Upper Peninsula (Marquette, Sault Ste. Marie)
Rural
906
Saginaw, Midland, Mt. Pleasant
Central/North
989
Kalamazoo, Battle Creek
Southwest
269
Macomb County, Warren, Sterling Heights
Suburban
586
Flint, Port Huron, Lapeer
East MI
810

Key Calling Regions

Michigan is divided into distinct calling zones.

Metro Detroit

Includes Detroit, Dearborn, and Wayne County.

313

Upper Peninsula

The entire UP region, known for nature and tourism.

906

West Michigan

Grand Rapids, Holland, and the Lake Michigan coast.

616

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Frequently Asked Questions

What is the area code for Detroit?

The primary area code for Detroit is 313. However, the metro area is vast and also uses 248 (Oakland County), 586 (Macomb County), and 734 (Wayne/Washtenaw Counties).

What is the 906 area code?

The 906 area code covers the entire Upper Peninsula of Michigan. It is one of the largest geographic area codes in the US but has a relatively low population density.

Do I need to dial 1 before the area code?

If you are calling from a landline within the US, you typically dial 1 before the area code for long-distance calls. If calling from a mobile phone or VoIP service like StartACall, you can usually just dial the 10-digit number (Area Code + Number).

How do I call Michigan from outside the US?

Dial your country's international exit code (e.g., 00), then the US country code (1), then the 3-digit Michigan area code, and finally the 7-digit phone number.

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Michigan's area codes from Detroit to the Upper Peninsula: a caller's map

In short

Michigan spreads eleven area codes across two peninsulas and, in a detail that surprises many callers, two time zones. Detroit and its suburbs account for a cluster of codes with fresh overlays, while single codes cover huge stretches of the north. This guide maps them and flags where the clock changes.

Detroit and its suburban belt

Detroit proper uses 313, joined by the 679 overlay in 2023 as the city's number supply tightened. The suburbs carry their own identities: 248 with overlay 947 for Oakland County towns like Troy and Pontiac, 586 for Macomb County, and 734 for the southwest belt including Ann Arbor and the airport in Romulus.

Locals still read social meaning into these codes, with 313 as shorthand for the city itself. For your dialing they are equivalent: +1 plus ten digits, at the same per-minute cost whether the number is a Detroit mobile or an Ann Arbor office line.

Outstate and the two-peninsula geography

Mid-Michigan splits among 517 for Lansing and Jackson, 810 for Flint and the Thumb, and 989 for Saginaw, Midland and the central north. The west side uses 616 for Grand Rapids and Holland, 269 for Kalamazoo and Battle Creek, and 231 for Muskegon up through Traverse City.

The entire Upper Peninsula, a territory larger than several states, is served by 906 alone. It is sparsely populated, heavily seasonal, and its western counties bordering Wisconsin observe Central Time, one hour behind the rest of Michigan, the state's easily forgotten time zone split.

Seasonal northern Michigan deserves its own note. Resort towns like Traverse City and Mackinac operate at full tilt from June to Labor Day, and 231 or 906 numbers for hotels and outfitters answer long hours then, but winter calls may reach skeleton staff except near the ski areas around Boyne.

Auto industry hours and Eastern Time windows

Most of Michigan runs on Eastern Time, five hours behind UTC in winter. Automotive suppliers and plants work early shifts, and purchasing or engineering contacts often answer from 7am, which for European callers means useful conversations from around noon UK time onward.

From China and Korea, home to many automotive partners, the practical overlap is the Asian evening reaching Michigan's morning: 8pm in Seoul is 7am in Detroit in winter. Office workers in Grand Rapids and Lansing keep more conventional 8am to 5pm patterns.

Placing the call

Dial +1, the area code, then seven digits, for any Michigan number. Overlay regions like Detroit and Oakland County already use ten-digit local dialing, so numbers are printed in full. Mobiles share the geographic codes and cost no more to reach.

StartACall connects from Chrome, Safari, Firefox or Edge over WebRTC with no app or SIM, one pay-as-you-go rate per minute, no connection fee, credits that never expire, and a free first call to test your line to Detroit or the UP.

If a supposed Michigan number looks unfamiliar, check the digits against the Canadian side: Windsor, Ontario sits directly across the river from Detroit under the 519 and 226 codes, and cross-border businesses often list a 313 number and a Canadian number side by side on the same page.

Frequently asked questions

What area code is Detroit?+

Detroit uses 313, plus the 679 overlay active since 2023. Suburban Oakland County uses 248 and 947, and Macomb County uses 586. All the metro codes cost the same to call from abroad.

What area code is Grand Rapids Michigan?+

Grand Rapids uses 616, which also covers Holland and the surrounding west Michigan area. Kalamazoo to the south uses 269. From overseas, dial +1 616 followed by the seven-digit local number.

What area code is the Upper Peninsula?+

The entire Upper Peninsula uses 906, from Sault Ste. Marie to Ironwood. Its far western counties observe Central Time, one hour behind the rest of Michigan. Mobile coverage is thin in parts of the peninsula's interior.

Is Michigan all in one time zone?+

Almost. Most of Michigan observes Eastern Time, but four western Upper Peninsula counties along the Wisconsin border follow Central Time, one hour behind Detroit. The area code alone does not indicate which zone applies.

How much does it cost to call a Detroit mobile from abroad?+

With StartACall, the same as any US landline: one per-minute pay-as-you-go rate with no connection fee or subscription, placed from your browser, and the first call is free. Calls run over WebRTC in any modern browser.

Last reviewed June 2026Reviewed by the StartACall calling teamDialing rules cross checked against ITU international dialing procedures
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