154.27.208.0/22
AS174 · Cogent Communications
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NetHandle: NET-154-24-0-0-1 OrgID: PSI-2 Parent: NET-154-0-0-0-0 NetName: COGENT-154-24-16 NetRange: 154.24.0.0 - 154.24.255.255 NetType: allocation OriginAS: 174 RegDate: 1992-02-05 Updated: 2017-10-30 Source: ARIN OrgID: PSI-2 OrgName: PSINet, Inc. CanAllocate: Street: 2450 N Street NW City: Washington State/Prov: DC Country: US PostalCode: 20037 Comment: Geofeed https://geofeed.cogentco.com/geofeed.csv RegDate: 1990-10-08 Updated: 2023-10-11 ReferralServer: rwhois://rwhois.cogentco.com:4321 OrgAdminHandle: IPALL-ARIN OrgTechHandle: IPALL-ARIN OrgAbuseHandle: COGEN-ARIN OrgNOCHandle: ZC108-ARIN Source: ARIN POCHandle: ZC108-ARIN IsRole: Y LastName: Cogent Communications FirstName: Street: 2450 N Street NW City: Washington State/Prov: DC Country: US PostalCode: 20037 RegDate: 2001-01-24 Updated: 2023-07-07 OfficePhone: +1-877-875-4311 Mailbox: noc@cogentco.com Source: ARIN POCHandle: COGEN-ARIN IsRole: Y LastName: Cogent Abuse FirstName: Street: 2450 N street, NW City: Washington State/Prov: DC Country: US PostalCode: 20037 RegDate: 2002-11-13 Updated: 2023-07-07 OfficePhone: +1-877-875-4311 Mailbox: abuse@cogentco.com Source: ARIN POCHandle: IPALL-ARIN IsRole: Y LastName: IP Allocation FirstName: Street: 2450 N Street NW City: Washington State/Prov: DC Country: US PostalCode: 20037 RegDate: 2002-11-13 Updated: 2023-07-07 OfficePhone: +1-877-875-4311 Mailbox: ipalloc@cogentco.com Source: ARIN
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What are IP address ranges?
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.
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