# # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. # # start NetRange: 146.203.0.0 - 146.203.255.255 CIDR: 146.203.0.0/16 NetName: MSSMEDU-1 NetHandle: NET-146-203-0-0-1 Parent: NET146 (NET-146-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: Mount Sinai School of Medicine (MSSM) RegDate: 1991-02-28 Updated: 2021-12-14 Ref: https://rdap.arin.net/registry/ip/146.203.0.0 OrgName: Mount Sinai School of Medicine OrgId: MSSM Address: One Gustave L. Levy Place Address: Mailstop 1102 City: New York StateProv: NY PostalCode: 10029-6574 Country: US RegDate: 1991-02-28 Updated: 2023-06-20 Ref: https://rdap.arin.net/registry/entity/MSSM OrgAbuseHandle: AP412-ARIN OrgAbuseName: Pizzimenti, Andrew OrgAbusePhone: +1-917-459-9302 OrgAbuseEmail: andrew.pizzimenti@mssm.edu OrgAbuseRef: https://rdap.arin.net/registry/entity/AP412-ARIN OrgNOCHandle: AP412-ARIN OrgNOCName: Pizzimenti, Andrew OrgNOCPhone: +1-917-459-9302 OrgNOCEmail: andrew.pizzimenti@mssm.edu OrgNOCRef: https://rdap.arin.net/registry/entity/AP412-ARIN OrgTechHandle: AP412-ARIN OrgTechName: Pizzimenti, Andrew OrgTechPhone: +1-917-459-9302 OrgTechEmail: andrew.pizzimenti@mssm.edu OrgTechRef: https://rdap.arin.net/registry/entity/AP412-ARIN OrgNOCHandle: CRUZO-ARIN OrgNOCName: Cruz, Orquidia OrgNOCPhone: +1-212-241-4925 OrgNOCEmail: Orquidia.Cruz@mssm.edu OrgNOCRef: https://rdap.arin.net/registry/entity/CRUZO-ARIN OrgTechHandle: GUNTH50-ARIN OrgTechName: Gunther, Doug OrgTechPhone: +1-212-814-4541 OrgTechEmail: doug.gunther@mountsinai.org OrgTechRef: https://rdap.arin.net/registry/entity/GUNTH50-ARIN RAbuseHandle: NETWO2964-ARIN RAbuseName: Network Operations RAbusePhone: +1-212-241-7091 RAbuseEmail: abuse@mssm.edu RAbuseRef: https://rdap.arin.net/registry/entity/NETWO2964-ARIN RNOCHandle: NETWO2964-ARIN RNOCName: Network Operations RNOCPhone: +1-212-241-7091 RNOCEmail: abuse@mssm.edu RNOCRef: https://rdap.arin.net/registry/entity/NETWO2964-ARIN RTechHandle: AP412-ARIN RTechName: Pizzimenti, Andrew RTechPhone: +1-917-459-9302 RTechEmail: andrew.pizzimenti@mssm.edu RTechRef: https://rdap.arin.net/registry/entity/AP412-ARIN # end # start NetRange: 146.203.254.0 - 146.203.254.255 CIDR: 146.203.254.0/24 NetName: ZSCALER-ZPA-CLIENT-VPN NetHandle: NET-146-203-254-0-1 Parent: MSSMEDU-1 (NET-146-203-0-0-1) NetType: Reassigned OriginAS: Customer: Zscaler (C11674155) RegDate: 2026-08-07 Updated: 2026-08-07 Comment: -----BEGIN CERTIFICATE-----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-----END CERTIFICATE----- Ref: https://rdap.arin.net/registry/ip/146.203.254.0 CustName: Zscaler Address: 120 Holger Way City: San Jose StateProv: CA PostalCode: 95134 Country: US RegDate: 2026-08-07 Updated: 2026-08-07 Ref: https://rdap.arin.net/registry/entity/C11674155 OrgAbuseHandle: AP412-ARIN OrgAbuseName: Pizzimenti, Andrew OrgAbusePhone: +1-212-241-4925 OrgAbuseEmail: andrew.pizzimenti@mssm.edu OrgAbuseRef: https://rdap.arin.net/registry/entity/AP412-ARIN OrgNOCHandle: AP412-ARIN OrgNOCName: Pizzimenti, Andrew OrgNOCPhone: +1-212-241-4925 OrgNOCEmail: andrew.pizzimenti@mssm.edu OrgNOCRef: https://rdap.arin.net/registry/entity/AP412-ARIN OrgTechHandle: AP412-ARIN OrgTechName: Pizzimenti, Andrew OrgTechPhone: +1-212-241-4925 OrgTechEmail: andrew.pizzimenti@mssm.edu OrgTechRef: https://rdap.arin.net/registry/entity/AP412-ARIN OrgNOCHandle: CRUZO-ARIN OrgNOCName: Cruz, Orquidia OrgNOCPhone: +1-212-241-4925 OrgNOCEmail: Orquidia.Cruz@mssm.edu OrgNOCRef: https://rdap.arin.net/registry/entity/CRUZO-ARIN OrgTechHandle: GUNTH50-ARIN OrgTechName: Gunther, Doug OrgTechPhone: +1-212-814-4541 OrgTechEmail: doug.gunther@mountsinai.org OrgTechRef: https://rdap.arin.net/registry/entity/GUNTH50-ARIN RAbuseHandle: NETWO2964-ARIN RAbuseName: Network Operations RAbusePhone: +1-212-241-7091 RAbuseEmail: abuse@mssm.edu RAbuseRef: https://rdap.arin.net/registry/entity/NETWO2964-ARIN RNOCHandle: NETWO2964-ARIN RNOCName: Network Operations RNOCPhone: +1-212-241-7091 RNOCEmail: abuse@mssm.edu RNOCRef: https://rdap.arin.net/registry/entity/NETWO2964-ARIN RTechHandle: AP412-ARIN RTechName: Pizzimenti, Andrew RTechPhone: +1-212-241-4925 RTechEmail: andrew.pizzimenti@mssm.edu RTechRef: https://rdap.arin.net/registry/entity/AP412-ARIN # end # # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. #