IP location for 18.21.21.129 is Cambridge, United States

IP:	18.21.21.129
Country:	United States (US)
Region:	MA
City:	Cambridge
Latitude:	42.3646
Longitude:	-71.1028
Zip code:	02139
Area code:	617
Reverse DNS:	18.21.21.129

IP information

Class A:	18
Class B:	18.21
Class C:	18.21.21

10 Random IPs

212.202.205.249	Find precise map location of 212.202.205.249
77.5.2.154	Find precise map location of 77.5.2.154
103.144.253.165	Find precise map location of 103.144.253.165
24.247.191.130	Find precise map location of 24.247.191.130
64.234.235.154	Find precise map location of 64.234.235.154
174.242.86.179	Find precise map location of 174.242.86.179
225.103.217.126	Find precise map location of 225.103.217.126
124.182.180.187	Find precise map location of 124.182.180.187
55.102.102.218	Find precise map location of 55.102.102.218
253.146.222.29	Find precise map location of 253.146.222.29
14.68.84.2	Find precise map location of 14.68.84.2

TestURI.org is a free web-sniffer.net alternative. It alows you to send custom HTTP request and check the HTTP response.