906 Area Code: Marquette, Michigan

Michigan's Upper Peninsula is served by the 906 area code, the only code covering the entire UP. Marquette, on the south shore of Lake Superior, anchors the directory's records here. Marquette sits at the foot of a substantial iron-ore deposit that has shaped the local economy for over 150 years; the city is home to Northern Michigan University and continues to function as the regional commercial center for a substantial geographic stretch of the UP. The 906 footprint covers the entire peninsula, from the Mackinac Bridge approaches in the east to the Wisconsin line in the west, taking in a region with relatively dispersed population centers spread across forested country, lakeshore communities, and the surrounding mining and timber base.

Records linked to 906 numbers in the directory often include Ann Arbor, Detroit, Flint, and Grand Rapids — Michigan cities outside the 906 footprint. The pattern reflects standard public-record dynamics, with phone numbers porting across Michigan and addresses linked across multiple cities. The directory currently documents 159 distinct prefixes within 906 in detail, a working subset of the prefix population the code carries.

Marquette's median age sits well under the US figure, at roughly the low thirties, a pattern shaped by the university's substantial student population. Median household income runs below the national reading, home values come in below the US median, and population is modest in absolute terms — Marquette is small, but the broader 906 footprint covers an unusually large geographic share of the state with a relatively low overall population density.