General Info




UltraDNS Corporation


AS12008 NeuStar, Inc.

United States


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Whois Details

V6NetHandle:    NET6-2001-502-AD09-1
OrgID:          ULTRA-13
Parent:         NET6-2001-400-0
NetName:        ULTRADNS-G-V65
NetRange:       2001:502:AD09:: - 2001:502:AD09:FFFF:FFFF:FFFF:FFFF:FFFF
NetType:        allocation
RegDate:        2004-11-30
Updated:        2012-03-02
TechHandle:     RJ48-ARIN
Source:         ARIN

OrgID:          ULTRA-13
OrgName:        UltraDNS Corporation
Street:         4600 Center Oak Plaza
City:           Sterling
State/Prov:     VA
Country:        US
PostalCode:     20166
Comment:        ABUSE NOC 24/7
RegDate:        2004-09-24
Updated:        2017-01-28
OrgTechHandle:  RJ48-ARIN
OrgAdminHandle: DOMAI79-ARIN
OrgAbuseHandle: ABUSE722-ARIN
Source:         ARIN


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.