According to North American Numbering Plan, 313203 located in DETROIT, Michigan. the first three digits 313 locate to state Michigan, 203 locate the city DETROIT, furthermore, we also provide some other information such as the zip code example(s) 48237, 48219, 48235, carrier TELEPORT COMMUNICATIONS AMERIC, and the latitude and longitude is 42.477 -83.2437. Please pay attention that the detail we provide only as a reference, the details of the zip code may be not complete, the latitude and longitude likely to have deviation.

Here are some random corresponding phone numbers.