IP WHOIS Lookup
Look up registration and network information for IP addresses using WHOIS
IP Whois
NetRange: 205.144.144.0 - 205.144.159.255 CIDR: 205.144.144.0/20 NetName: CAGNET NetHandle: NET-205-144-144-0-1 Parent: NET205 (NET-205-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: CSG Systems Inc. (CSGSY-2) RegDate: 1995-04-07 Updated: 2021-12-14 Ref: https://rdap.arin.net/registry/ip/205.144.144.0 OrgName: CSG Systems Inc. OrgId: CSGSY-2 Address: 2525 N 117th Ave City: Omaha StateProv: NE PostalCode: 68164 Country: US RegDate: 2008-10-15 Updated: 2025-11-25 Ref: https://rdap.arin.net/registry/entity/CSGSY-2 OrgTechHandle: CNS22-ARIN OrgTechName: CSG Network Services OrgTechPhone: +1-402-431-7877 OrgTechEmail: list-dneall@csgi.com OrgTechRef: https://rdap.arin.net/registry/entity/CNS22-ARIN OrgAbuseHandle: KLEIN359-ARIN OrgAbuseName: Kleinsasser, Todd OrgAbusePhone: +1-402-431-7877 OrgAbuseEmail: todd.kleinsasser@csgi.com OrgAbuseRef: https://rdap.arin.net/registry/entity/KLEIN359-ARIN OrgNOCHandle: KLEIN359-ARIN OrgNOCName: Kleinsasser, Todd OrgNOCPhone: +1-402-431-7877 OrgNOCEmail: todd.kleinsasser@csgi.com OrgNOCRef: https://rdap.arin.net/registry/entity/KLEIN359-ARIN OrgNOCHandle: CNS22-ARIN OrgNOCName: CSG Network Services OrgNOCPhone: +1-402-431-7877 OrgNOCEmail: list-dneall@csgi.com OrgNOCRef: https://rdap.arin.net/registry/entity/CNS22-ARIN OrgTechHandle: KLEIN359-ARIN OrgTechName: Kleinsasser, Todd OrgTechPhone: +1-402-431-7877 OrgTechEmail: todd.kleinsasser@csgi.com OrgTechRef: https://rdap.arin.net/registry/entity/KLEIN359-ARIN OrgAbuseHandle: CNS22-ARIN OrgAbuseName: CSG Network Services OrgAbusePhone: +1-402-431-7877 OrgAbuseEmail: list-dneall@csgi.com OrgAbuseRef: https://rdap.arin.net/registry/entity/CNS22-ARIN