According to North American Numbering Plan, 203919 located in NORWALK, Connecticut. the first three digits 203 locate to state Connecticut, 919 Cellular locate the city NORWALK, furthermore, we also provide some other information such as the zip code example(s) 06854, 06855, 06850, carrier OMNIPOINT COMMUNICATIONS, INC., and the latitude and longitude is 41.1003 -73.4187. 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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