According to North American Numbering Plan, 503438 located in ST HELENS, Oregon. the first three digits 503 locate to state Oregon, 438 locate the city ST HELENS, furthermore, we also provide some other information such as the zip code example(s) 97051, carrier T-MOBILE USA, INC., and the latitude and longitude is 45.8668 -122.8038. 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.