General Info

ID

DEMO-PR-2

Description

SRI International

ASN

AS4922 Shentel Communications, LLC

Country
United States
Registry

arin

Whois Details

NetHandle:      NET-128-57-0-0-1
OrgID:          SRIINT
Parent:         NET-128-0-0-0-0
NetName:        DEMO-PR-2
NetRange:       128.57.0.0 - 128.57.255.255
NetType:        assignment
RegDate:        1984-11-09
Updated:        2011-02-03
Source:         ARIN


OrgID:          SRIINT
OrgName:        SRI International
CanAllocate:    
Street:         333 Ravenswood Avenue
City:           Menlo Park
State/Prov:     CA
Country:        US
PostalCode:     94025
RegDate:        1970-01-01
Updated:        2011-09-24
OrgTechHandle:  LS732-ARIN
OrgAbuseHandle: HWB1-ARIN
OrgTechHandle:  HWB1-ARIN
OrgAdminHandle: LS732-ARIN
OrgAbuseHandle: LS732-ARIN
Source:         ARIN

Details

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.