According to North American Numbering Plan, 636542 located in O FALLON, Missouri. the first three digits 636 locate to state Missouri, 542 locate the city O FALLON, furthermore, we also provide some other information such as the zip code example(s) 63366, 63368, 63367, carrier NEW CINGULAR WIRELESS PCS, LLC, and the latitude and longitude is 38.8066 -90.7012. 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.