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129.176.208.0

IPv4 ARIN US AS22616
ASN
AS22616
ZSCALER-SJC1 - ZSCALER, INC., US
Organization
Mayo Foundation for Medical Education and Research
MAYO
Location
Denver
Colorado, United States (US)
Hostname
—

Geolocation

United States (US)
Country
United States (US)
Region
Colorado
City
Denver
Continent
North America
Coordinates
39.7392, -104.99 View on map ↗

Network Information

IP Range 129.176.0.0 – 129.176.255.255 CIDR 129.176.0.0/16 Network Name MAYO Handle NET-129-176-0-0-1 Type DIRECT ALLOCATION Parent Network NET-129-0-0-0-0 Organization Mayo Foundation for Medical Education and Research Organization ID MAYOFO-Z Address 200 First Street Southwest, Rochester, MN, 55905, United States Country United States (US) Registry ARIN Registered On Mar 03, 1988 Last Updated Aug 21, 2026 Status
active

ASN & Routing

Origin AS AS22616 AS Name ZSCALER-SJC1 - ZSCALER, INC., US Announced Prefix 129.176.208.0/24 AS Registry ARIN Prefix Country United States (US) Allocated 1988-03-03 RPKI Origin Valid (covered by a matching ROA)

Reverse DNS

No PTR record is published for this address.

Abuse Contact

Email [email protected] Phone +1-507-284-1212

Raw RDAP Response

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  "cidr0_cidrs": [
    {
      "v4prefix": "129.176.0.0",
      "length": 16
    }
  ],
  "endAddress": "129.176.255.255",
  "entities": [
    {
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            {
              "eventAction": "last changed",
              "eventDate": "2026-03-26T12:30:21-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2017-03-23T16:22:24-04:00"
            }
          ],
          "handle": "DAVID444-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/DAVID444-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/ip/129.176.208.0"
            },
            {
              "href": "https://whois.arin.net/rest/poc/DAVID444-ARIN",
              "rel": "alternate",
              "type": "application/xml",
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            }
          ],
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          "roles": [
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          "status": [
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                "text",
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              ],
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              ]
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        },
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2018-07-17T11:28:04-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2014-07-15T10:41:22-04:00"
            }
          ],
          "handle": "TARC-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/TARC-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/ip/129.176.208.0"
            },
            {
              "href": "https://whois.arin.net/rest/poc/TARC-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/ip/129.176.208.0"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "remarks": [
            {
              "description": [
                "ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2019-07-17"
              ],
              "title": "Unvalidated POC"
            }
          ],
          "roles": [
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          "vcardArray": [
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            [
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              ],
              [
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                },
                "text",
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              ],
              [
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              ],
              [
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                {},
                "text",
                "Mayo Clinic"
              ],
              [
                "kind",
                {},
                "text",
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              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
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                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-507-284-1212"
              ]
            ]
          ]
        },
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-08-19T14:15:30-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2008-04-25T16:00:04-04:00"
            }
          ],
          "handle": "NOC3062-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/NOC3062-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/ip/129.176.208.0"
            },
            {
              "href": "https://whois.arin.net/rest/poc/NOC3062-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/ip/129.176.208.0"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
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          "status": [
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          "vcardArray": [
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                },
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                ]
              ],
              [
                "fn",
                {},
                "text",
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              ],
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                {},
                "text",
                "Mayo Foundation For Education and Research"
              ],
              [
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                {},
                "text",
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                {},
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              [
                "tel",
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                  ]
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                "text",
                "+1-507-266-2139"
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          ]
        }
      ],
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2023-11-15T12:58:13-05:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "2023-11-15T12:58:13-05:00"
        }
      ],
      "handle": "MAYOFO-Z",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/MAYOFO-Z",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/ip/129.176.208.0"
        },
        {
          "href": "https://whois.arin.net/rest/org/MAYOFO-Z",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/ip/129.176.208.0"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "roles": [
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      ],
      "vcardArray": [
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          ],
          [
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          ],
          [
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            },
            "text",
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          [
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    },
    {
      "events": [
        {
          "eventAction": "last changed",
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        },
        {
          "eventAction": "registration",
          "eventDate": "2017-03-23T16:22:24-04:00"
        }
      ],
      "handle": "DAVID444-ARIN",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/DAVID444-ARIN",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/ip/129.176.208.0"
        },
        {
          "href": "https://whois.arin.net/rest/poc/DAVID444-ARIN",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/ip/129.176.208.0"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "roles": [
        "technical"
      ],
      "status": [
        "validated"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "adr",
            {
              "label": "200 1st SW\nRochester\nMN\n55905\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "fn",
            {},
            "text",
            "David Rahman"
          ],
          [
            "org",
            {},
            "text",
            "Mayo"
          ],
          [
            "kind",
            {},
            "text",
            "group"
          ],
          [
            "email",
            {},
            "text",
            "[email protected]"
          ],
          [
            "tel",
            {
              "type": [
                "work",
                "voice"
              ]
            },
            "text",
            "+1-507-284-2092"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2026-08-21T09:08:03-04:00"
    },
    {
      "eventAction": "registration",
      "eventDate": "1988-03-03T00:00:00-05:00"
    }
  ],
  "handle": "NET-129-176-0-0-1",
  "ipVersion": "v4",
  "links": [
    {
      "href": "https://rdap.arin.net/registry/ip/129.176.0.0",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.arin.net/registry/ip/129.176.208.0"
    },
    {
      "href": "https://whois.arin.net/rest/net/NET-129-176-0-0-1",
      "rel": "alternate",
      "type": "application/xml",
      "value": "https://rdap.arin.net/registry/ip/129.176.208.0"
    }
  ],
  "name": "MAYO",
  "notices": [
    {
      "description": [
        "By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
      ],
      "links": [
        {
          "href": "https://www.arin.net/resources/registry/whois/tou/",
          "rel": "terms-of-service",
          "type": "text/html",
          "value": "https://rdap.arin.net/registry/ip/129.176.208.0"
        }
      ],
      "title": "Terms of Service"
    },
    {
      "description": [
        "If you see inaccuracies in the results, please visit: "
      ],
      "links": [
        {
          "href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
          "rel": "inaccuracy-report",
          "type": "text/html",
          "value": "https://rdap.arin.net/registry/ip/129.176.208.0"
        }
      ],
      "title": "Whois Inaccuracy Reporting"
    },
    {
      "description": [
        "Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
      ],
      "title": "Copyright Notice"
    }
  ],
  "objectClassName": "ip network",
  "parentHandle": "NET-129-0-0-0-0",
  "port43": "whois.arin.net",
  "rdapConformance": [
    "nro_rdap_profile_0",
    "rdap_level_0",
    "cidr0",
    "arin_originas0"
  ],
  "remarks": [
    {
      "description": [
        "-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----"
      ],
      "title": "Registration Comments"
    }
  ],
  "startAddress": "129.176.0.0",
  "status": [
    "active"
  ],
  "type": "DIRECT ALLOCATION"
}

Contact details of private individuals are redacted.