General Info




Internet Assigned Numbers Authority


AS8866 Bulgarian Telecommunications Company Plc.

United States


Whois Details

NetHandle:      NET-172-16-0-0-1
OrgID:          IANA
Parent:         NET-172-0-0-0-0
NetRange: -
NetType:        assignment
Comment:        These addresses are in use by many millions of independently operated networks, which might be as small as a single computer connected to a home gateway, and are automatically configured in hundreds of millions of devices.  They are only intended for use within a private context  and traffic that needs to cross the Internet will need to use a different, unique address.
Comment:        These addresses can be used by anyone without any need to coordinate with IANA or an Internet registry.  The traffic from these addresses does not come from ICANN or IANA.  We are not the source of activity you may see on logs or in e-mail records.  Please refer to
Comment:        These addresses were assigned by the IETF, the organization that develops Internet protocols, in the Best Current Practice document, RFC 1918 which can be found at:
RegDate:        1994-03-15
Updated:        2013-08-30
Source:         ARIN

OrgID:          IANA
OrgName:        Internet Assigned Numbers Authority
Street:         12025 Waterfront Drive
Street:         Suite 300
City:           Los Angeles
State/Prov:     CA
Country:        US
PostalCode:     90292
RegDate:        1970-01-01
Updated:        2012-08-31
OrgAdminHandle: IANA-ARIN
OrgAbuseHandle: IANA-IP-ARIN
OrgTechHandle:  IANA-IP-ARIN
Source:         ARIN

IP Addresses in this range


IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.