According to North American Numbering Plan, 423477 located in KINGSPORT, Tennessee. the first three digits 423 locate to state Tennessee, 477 locate the city KINGSPORT, furthermore, we also provide some other information such as the zip code example(s) 37663, 37615, 37664, carrier UNITED TELEPHONE-SOUTHEAST-TN, and the latitude and longitude is 36.4528 -82.4704. 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.