IP WHOIS Lookup
Look up registration and network information for IP addresses using WHOIS
IP Whois
NetRange: 199.74.64.0 - 199.74.127.255 CIDR: 199.74.64.0/18 NetName: NWURH NetHandle: NET-199-74-64-0-1 Parent: NET199 (NET-199-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: Northwestern University (NORTHW-9-Z) RegDate: 1994-03-24 Updated: 2021-12-14 Ref: https://rdap.arin.net/registry/ip/199.74.64.0 OrgName: Northwestern University OrgId: NORTHW-9-Z Address: 2020 Ridge Ave City: Evanston StateProv: IL PostalCode: 60208 Country: US RegDate: 2010-01-08 Updated: 2026-10-19 Ref: https://rdap.arin.net/registry/entity/NORTHW-9-Z OrgAbuseHandle: NUNS-ARIN OrgAbuseName: Northwestern University Network Security OrgAbusePhone: +1-847-467-2222 OrgAbuseEmail: security@northwestern.edu OrgAbuseRef: https://rdap.arin.net/registry/entity/NUNS-ARIN OrgTechHandle: NUNA-ARIN OrgTechName: Northwestern University Network Administration OrgTechPhone: +1-847-467-2222 OrgTechEmail: data-network@northwestern.edu OrgTechRef: https://rdap.arin.net/registry/entity/NUNA-ARIN RNOCHandle: NUN-ARIN RNOCName: Northwestern University NOC RNOCPhone: +1-847-467-2222 RNOCEmail: data-network@northwestern.edu RNOCRef: https://rdap.arin.net/registry/entity/NUN-ARIN RTechHandle: NUNA-ARIN RTechName: Northwestern University Network Administration RTechPhone: +1-847-467-2222 RTechEmail: data-network@northwestern.edu RTechRef: https://rdap.arin.net/registry/entity/NUNA-ARIN RAbuseHandle: NUNS-ARIN RAbuseName: Northwestern University Network Security RAbusePhone: +1-847-467-2222 RAbuseEmail: security@northwestern.edu RAbuseRef: https://rdap.arin.net/registry/entity/NUNS-ARIN