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WHOIS IP Lookup Tool

The IPWHOIS Lookup tool finds contact information for the owner of a specified IP address.

Enter a host name or an IP address:
Source:  whois.arin.net
IP Address:  38.100.21.16
Name:  COGENT-A
Handle:  NET-38-0-0-0-1
Registration Date:  4/16/91
Range:  38.0.0.0-38.255.255.255
Org:  PSINet, Inc.
Org Handle:  PSI
Address:  2450 N Street NW
City:  Washington
State/Province:  DC
Postal Code:  20037
Country:  United States
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