# # 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: 168.183.0.0 - 168.183.255.255 CIDR: 168.183.0.0/16 NetName: UHC-B2 NetHandle: NET-168-183-0-0-1 Parent: NET168 (NET-168-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: UnitedHealth Group Incorporated (UHC-5) RegDate: 1994-05-23 Updated: 2026-03-31 Comment: -----BEGIN CERTIFICATE----- Comment: MIIENzCCAx+gAwIBAgIUa9uVE4FQNA7gMlE/X4lLCkvEwDQYJKoZIhvcNAQEL Comment: BQAwgaoxCzAJBgNVBAYTAlVTMRIwEAYDVQQIDAlNaW5uZXNvdGExDzANBgNVBAcM Comment: BkNoYXNrYTEOMAwGA1UECgwFT3B0dW0xJTAjBgNVBAsMHEVkZ2UgJiBDdXN0b21l Comment: ciBDb25uZWN0aXZpdHkxHjAcBgNVBAMMFUludGVybmV0IEdhdGV3YXkoSVNPKTEf Comment: MB0GCSqGSIb3DQEJARYQZGFrb3RhQG9wdHVtLmNvbTAeFw0yNjAzMTIwMjI1NTZa Comment: Fw0yNzAzMTIwMjI1NTZaMIGqMQswCQYDVQQGEwJVUzESMBAGA1UECAwJTWlubmVz Comment: b3RhMQ8wDQYDVQQHDAZDaGFza2ExDjAMBgNVBAoMBU9wdHVtMSUwIwYDVQQLDBxF Comment: ZGdlICYgQ3VzdG9tZXIgQ29ubmVjdGl2aXR5MR4wHAYDVQQDDBVJbRlcm5ldCBH Comment: YXRld2F5KElTTykxHzAdBgkqhkiG9w0BCQEWEGRha290YUBvcHR1bS5jb20wggEi Comment: MA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQC4FZV7DD31rz3Ncw9cZdqWSMW Comment: /XDsa2tfYlrZNhWXbMmRQY2hDyGwigq9++VA0PckNZB/5Xpb+SkJ445AF76VM2Od Comment: 9br+tEMKI5Q3WcdUd5Xh+gsl7RRHFCN9Nz7IjBwzGLaNUcQsaYqZoMyAYlEKzQ4 Comment: y64/Y2OSRT3w7dQ39hENr/hhRGOhZEAlaWLY5WecdmdrGZLlqqg+tR7TZoLfd9 Comment: CpmHDyzqktaytfGgpmok2OjJHgZN7t+5/HO0g+pZSwHcM3OVclr+zxQoNQ3NQe Comment: i6mFidKuLfbUI3rlU9A5K9GHPLSN1ZjjVaNkCsyX5lbCPcm5j7gUtcXBXq1hAgMB Comment: AAGjUzBRMB0GA1UdDgQWBBQi8s9V7GXUvY92jA5agqX0y8h6zAfBgNVHSMEGDAW Comment: gBQi8s9V7GXUvY92jA5agqX0y8h6zAPBgNVHRMBAf8EBTADAQH/MA0GCSqGSIb3 Comment: DQEBCwUAA4IBAQB6C8sPjkEMUFUHiPvMg6HsbJ0rGSvBhw1SGLiM/uwY4GgiPZ Comment: 9NqrYWTILzb00xfLGdoE6PZTKatWflx7ZckyCkQsFuiZSbp15Ou5gElksDM1kfjP Comment: dT7GX6x61OOqhSXpi83HYKg2esRRxS8UajRPaK/iriugfLFq4ugG49/37myMu8 Comment: 0yflxbWCl35/sIpUmGdG7YO+3JUuGtp21YvRitUpowVHfPjDpRTxivL6dJWvIt2q Comment: rIku7mpoH4Kc63We/gRUu8qAsqqdom4AZmKIsEojDQRdNqmSUZWArmYqFYs7xCp Comment: k5xK9RvvShkjITvo36w5D77dzp/V5rFpRz Comment: -----END CERTIFICATE----- Ref: https://rdap.arin.net/registry/ip/168.183.0.0 OrgName: UnitedHealth Group Incorporated OrgId: UHC-5 Address: IP & DNS Team Address: 6150 Trenton Lane City: Plymouth StateProv: MN PostalCode: 55442 Country: US RegDate: 1994-05-23 Updated: 2012-03-15 Ref: https://rdap.arin.net/registry/entity/UHC-5 OrgTechHandle: UHNO-ARIN OrgTechName: United Healthcare Network OC OrgTechPhone: +1-763-744-1588 OrgTechEmail: inet_ops@uhc.com OrgTechRef: https://rdap.arin.net/registry/entity/UHNO-ARIN OrgAbuseHandle: UHNO-ARIN OrgAbuseName: United Healthcare Network OC OrgAbusePhone: +1-763-744-1588 OrgAbuseEmail: inet_ops@uhc.com OrgAbuseRef: https://rdap.arin.net/registry/entity/UHNO-ARIN RAbuseHandle: UHNO-ARIN RAbuseName: United Healthcare Network OC RAbusePhone: +1-763-744-1588 RAbuseEmail: inet_ops@uhc.com RAbuseRef: https://rdap.arin.net/registry/entity/UHNO-ARIN RNOCHandle: UHNO-ARIN RNOCName: United Healthcare Network OC RNOCPhone: +1-763-744-1588 RNOCEmail: inet_ops@uhc.com RNOCRef: https://rdap.arin.net/registry/entity/UHNO-ARIN RTechHandle: UHNO-ARIN RTechName: United Healthcare Network OC RTechPhone: +1-763-744-1588 RTechEmail: inet_ops@uhc.com RTechRef: https://rdap.arin.net/registry/entity/UHNO-ARIN # end # start NetRange: 168.183.189.0 - 168.183.189.255 CIDR: 168.183.189.0/24 NetName: UHG-ZSCALER-MANCHESTER-01 NetHandle: NET-168-183-189-0-1 Parent: UHC-B2 (NET-168-183-0-0-1) NetType: Reassigned OriginAS: Organization: ZSCALER, INC. (ZSCAL) RegDate: 2025-09-15 Updated: 2025-09-15 Ref: https://rdap.arin.net/registry/ip/168.183.189.0 OrgName: ZSCALER, INC. OrgId: ZSCAL Address: 120 Holger Way City: San Jose StateProv: CA PostalCode: 95134 Country: US RegDate: 2011-03-18 Updated: 2025-11-06 Comment: Zscaler customer traffic originates from colocation facilities around the world. You should *NOT* use the address or contact information here for the purposes of geolocation. Additionally, because traffic egressing our network may belong to any one of our customers, you should not assume that this traffic belongs to us. Comment: Comment: For network or security incidents, please reach out to our abuse POC, which is actually monitored and actioned. Ref: https://rdap.arin.net/registry/entity/ZSCAL OrgNOCHandle: POCNO1-ARIN OrgNOCName: poc-noc OrgNOCPhone: +1-408-701-0534 OrgNOCEmail: poc-noc@zscaler.com OrgNOCRef: https://rdap.arin.net/registry/entity/POCNO1-ARIN OrgAbuseHandle: POCAB2-ARIN OrgAbuseName: poc-abuse OrgAbusePhone: +1-408-701-0534 OrgAbuseEmail: poc-abuse@zscaler.com OrgAbuseRef: https://rdap.arin.net/registry/entity/POCAB2-ARIN OrgTechHandle: POCTE3-ARIN OrgTechName: poc-tech OrgTechPhone: +1-408-701-0534 OrgTechEmail: poc-tech@zscaler.com OrgTechRef: https://rdap.arin.net/registry/entity/POCTE3-ARIN OrgTechHandle: MMT31-ARIN OrgTechName: Teng, Michael Michael OrgTechPhone: +1-650-937-9195 OrgTechEmail: mteng@zscaler.com OrgTechRef: https://rdap.arin.net/registry/entity/MMT31-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. #