General Info

ID

XOXO-206-251-128-0-1

Description

Concentric

ASN

AS4908 MCI Communications Services, Inc. d/b/a Verizon Business

Country
United States
Registry

arin

Whois Details

NetHandle:      NET-206-251-128-0-2
OrgID:          CONCE-23
Parent:         NET-206-251-128-0-1
NetName:        XOXO-206-251-128-0-1
NetRange:       206.251.128.0 - 206.251.159.255
NetType:        reallocation
OriginAS:       4908
RegDate:        2008-06-25
Updated:        2008-06-25
Source:         ARIN


OrgID:          CONCE-23
OrgName:        Concentric
CanAllocate:    
Street:         55 Almaden Blvd, Ste 700
City:           San Jose
State/Prov:     CA
Country:        US
PostalCode:     95113
RegDate:        2007-06-21
Updated:        2007-07-12
OrgAdminHandle: IPADM364-ARIN
OrgAbuseHandle: NETWO1900-ARIN
OrgTechHandle:  IPADM364-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.