IP location for 128.91.21.168 is Philadelphia, United States

IP:	128.91.21.168
Country:	United States (US)
Region:	PA
City:	Philadelphia
Latitude:	39.9597
Longitude:	-75.1968
Zip code:	19104
Area code:	215
Reverse DNS:	geb-038.gse.upenn.edu

IP information

Class A:	128
Class B:	128.91
Class C:	128.91.21

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