NetHandle: NET-172-16-0-0-1 OrgID: IANA Parent: NET-172-0-0-0-0 NetName: PRIVATE-ADDRESS-BBLK-RFC1918-IANA-RESERVED NetRange: 172.16.0.0 - 172.31.255.255 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 http://www.iana.org/abuse/answers 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: Comment: http://datatracker.ietf.org/doc/rfc1918 RegDate: 1994-03-15 Updated: 2013-08-30 Source: ARIN OrgID: IANA OrgName: Internet Assigned Numbers Authority CanAllocate: 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.