According to North American Numbering Plan, 815990 located in FREEPORT, Illinois. the first three digits 815 locate to state Illinois, 990 Cellular locate the city FREEPORT, furthermore, we also provide some other information such as the zip code example(s) 61032, carrier CELLCO PARTNERSHIP DBA VERIZON, and the latitude and longitude is 42.2939 -89.6224. 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.

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