General Info




T-Mobile USA, Inc.


AS19271 Peak 10

United States


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Whois Details

NetHandle:      NET-72-250-0-0-1
OrgID:          TMOBI
Parent:         NET-72-0-0-0-0
NetName:        TMOBILE-GPRS-I3
NetRange: -
NetType:        allocation
RegDate:        2005-02-15
Updated:        2012-02-24
TechHandle:     DNSAD11-ARIN
Source:         ARIN

OrgID:          TMOBI
OrgName:        T-Mobile USA, Inc.
Street:         12920 SE 38th Street
City:           Bellevue
State/Prov:     WA
Country:        US
PostalCode:     98006
RegDate:        2003-01-02
Updated:        2017-01-28
OrgAdminHandle: DNSAD11-ARIN
OrgAbuseHandle: ABUSE4857-ARIN
OrgTechHandle:  DNSAD11-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.