According to North American Numbering Plan, 610603 located in READING, Pennsylvania. the first three digits 610 locate to state Pennsylvania, 603 locate the city READING, furthermore, we also provide some other information such as the zip code example(s) 19607, 19611, 19610, carrier VERIZON PENNSYLVANIA, INC., and the latitude and longitude is 40.3077 -75.9656. 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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