Dashboard / ASN Lookup / AS203376

AS203376

Mailkit s.r.o.

RIPE NCC CZ active Announced
More ASNs in Czechia →
Organization
Mailkit s.r.o.
MAILKIT
Registered
Feb 02, 2016
10 years ago
IPv4 Prefixes
3
1,024 addresses
IPv6 Prefixes
3
524,288 × /48
BGP Neighbours
2
2 upstream/peer · 0 downstream

Registration

AS Number AS203376 AS Name MAILKIT Organization Mailkit s.r.o. Organization ID ORG-MS392-RIPE Address Oranzova 225, 25219, Chrastany, CZECH REPUBLIC Country Czechia (CZ) Registry RIPE NCC Allocated Feb 02, 2016 Record Created Feb 02, 2016 Last Updated Sep 04, 2018 Status
active
WHOIS Server whois.ripe.net AS Description MAILKIT - Mailkit s.r.o., CZ Abuse Email [email protected]

IPv4 Prefixes

3 prefixes · 1,024 addresses Routing data as of 2026-10-09 00:00 UTC

PrefixRangeAddresses
185.136.200.0/23185.136.200.0 – 185.136.201.255512
185.136.202.0/24185.136.202.0 – 185.136.202.255256
185.136.203.0/24185.136.203.0 – 185.136.203.255256

IPv6 Prefixes

3 prefixes · 524,288 × /48 Routing data as of 2026-10-09 00:00 UTC

BGP Neighbours

2 unique neighbours · 2 upstream/peer · 0 downstream. A neighbour can be seen on more than one side. Rows are ordered by AS paths: the number of BGP paths seen by RIPE RIS that contain the adjacency. Sightings count each IPv4/IPv6 route with the adjacency once per RIS peer that sees it (routes × peers), so they show how widely it is seen, not how many distinct routes it carries.

Upstream & peer side (2)

Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers.

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS21430WIA-AS WIA spol. s.r.o.435550494
AS15685CASABLANCA-AS CASABLANCA INT a.s.267554586

Raw RDAP Response

{
  "handle": "AS203376",
  "startAutnum": 203376,
  "endAutnum": 203376,
  "name": "MAILKIT",
  "status": [
    "active"
  ],
  "entities": [
    {
      "handle": "cz-mailkit-1-mnt",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "REDACTED"
          ],
          [
            "kind",
            {},
            "text",
            "individual"
          ]
        ]
      ],
      "roles": [
        "registrant"
      ],
      "links": [
        {
          "value": "https://rdap.db.ripe.net/autnum/203376",
          "rel": "self",
          "href": "https://rdap.db.ripe.net/entity/cz-mailkit-1-mnt"
        },
        {
          "value": "http://www.ripe.net/data-tools/support/documentation/terms",
          "rel": "copyright",
          "href": "http://www.ripe.net/data-tools/support/documentation/terms"
        }
      ],
      "objectClassName": "entity"
    },
    {
      "handle": "JO3848-RIPE",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "REDACTED"
          ],
          [
            "kind",
            {},
            "text",
            "individual"
          ]
        ]
      ],
      "roles": [
        "administrative"
      ],
      "links": [
        {
          "value": "https://rdap.db.ripe.net/autnum/203376",
          "rel": "self",
          "href": "https://rdap.db.ripe.net/entity/JO3848-RIPE"
        },
        {
          "value": "http://www.ripe.net/data-tools/support/documentation/terms",
          "rel": "copyright",
          "href": "http://www.ripe.net/data-tools/support/documentation/terms"
        }
      ],
      "objectClassName": "entity"
    },
    {
      "handle": "ORG-MS392-RIPE",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Mailkit s.r.o."
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ],
          [
            "adr",
            {
              "label": "Oranzova 225\n25219\nChrastany\nCZECH REPUBLIC"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "tel",
            {
              "type": "voice"
            },
            "text",
            "+420 778 535 877"
          ]
        ]
      ],
      "roles": [
        "registrant"
      ],
      "links": [
        {
          "value": "https://rdap.db.ripe.net/autnum/203376",
          "rel": "self",
          "href": "https://rdap.db.ripe.net/entity/ORG-MS392-RIPE"
        },
        {
          "value": "http://www.ripe.net/data-tools/support/documentation/terms",
          "rel": "copyright",
          "href": "http://www.ripe.net/data-tools/support/documentation/terms"
        }
      ],
      "objectClassName": "entity"
    },
    {
      "handle": "RIPE-NCC-END-MNT",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "REDACTED"
          ],
          [
            "kind",
            {},
            "text",
            "individual"
          ]
        ]
      ],
      "roles": [
        "registrant"
      ],
      "links": [
        {
          "value": "https://rdap.db.ripe.net/autnum/203376",
          "rel": "self",
          "href": "https://rdap.db.ripe.net/entity/RIPE-NCC-END-MNT"
        },
        {
          "value": "http://www.ripe.net/data-tools/support/documentation/terms",
          "rel": "copyright",
          "href": "http://www.ripe.net/data-tools/support/documentation/terms"
        }
      ],
      "objectClassName": "entity"
    },
    {
      "handle": "TO2137-RIPE",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "REDACTED"
          ],
          [
            "kind",
            {},
            "text",
            "individual"
          ]
        ]
      ],
      "roles": [
        "technical"
      ],
      "links": [
        {
          "value": "https://rdap.db.ripe.net/autnum/203376",
          "rel": "self",
          "href": "https://rdap.db.ripe.net/entity/TO2137-RIPE"
        },
        {
          "value": "http://www.ripe.net/data-tools/support/documentation/terms",
          "rel": "copyright",
          "href": "http://www.ripe.net/data-tools/support/documentation/terms"
        }
      ],
      "objectClassName": "entity"
    },
    {
      "handle": "AR35020-RIPE",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Abuse-C Role"
          ],
          [
            "kind",
            {},
            "text",
            "group"
          ],
          [
            "adr",
            {
              "label": "Oranzova 225\n25219 Chrastany\nCzech Republic"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "email",
            {
              "type": "abuse"
            },
            "text",
            "[email protected]"
          ],
          [
            "org",
            {},
            "text",
            "ORG-MS392-RIPE"
          ]
        ]
      ],
      "roles": [
        "abuse"
      ],
      "entities": [
        {
          "handle": "cz-mailkit-1-mnt",
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "fn",
                {},
                "text",
                "REDACTED"
              ],
              [
                "kind",
                {},
                "text",
                "individual"
              ]
            ]
          ],
          "roles": [
            "registrant"
          ],
          "links": [
            {
              "value": "https://rdap.db.ripe.net/autnum/203376",
              "rel": "self",
              "href": "https://rdap.db.ripe.net/entity/cz-mailkit-1-mnt"
            },
            {
              "value": "http://www.ripe.net/data-tools/support/documentation/terms",
              "rel": "copyright",
              "href": "http://www.ripe.net/data-tools/support/documentation/terms"
            }
          ],
          "objectClassName": "entity"
        },
        {
          "handle": "ORG-MS392-RIPE",
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "fn",
                {},
                "text",
                "Mailkit s.r.o."
              ],
              [
                "kind",
                {},
                "text",
                "org"
              ],
              [
                "adr",
                {
                  "label": "Oranzova 225\n25219\nChrastany\nCZECH REPUBLIC"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "tel",
                {
                  "type": "voice"
                },
                "text",
                "+420 778 535 877"
              ]
            ]
          ],
          "roles": [
            "registrant"
          ],
          "links": [
            {
              "value": "https://rdap.db.ripe.net/autnum/203376",
              "rel": "self",
              "href": "https://rdap.db.ripe.net/entity/ORG-MS392-RIPE"
            },
            {
              "value": "http://www.ripe.net/data-tools/support/documentation/terms",
              "rel": "copyright",
              "href": "http://www.ripe.net/data-tools/support/documentation/terms"
            }
          ],
          "objectClassName": "entity"
        }
      ],
      "objectClassName": "entity"
    }
  ],
  "links": [
    {
      "value": "https://rdap.db.ripe.net/autnum/203376",
      "rel": "rdap-up",
      "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS203376",
      "type": "application/rdap+json"
    },
    {
      "value": "https://rdap.db.ripe.net/autnum/203376",
      "rel": "rdap-up rdap-active",
      "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS203376?status=active",
      "type": "application/rdap+json"
    },
    {
      "value": "https://rdap.db.ripe.net/autnum/203376",
      "rel": "rdap-down",
      "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-down/AS203376",
      "type": "application/rdap+json"
    },
    {
      "value": "https://rdap.db.ripe.net/autnum/203376",
      "rel": "rdap-top",
      "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS203376",
      "type": "application/rdap+json"
    },
    {
      "value": "https://rdap.db.ripe.net/autnum/203376",
      "rel": "rdap-top rdap-active",
      "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS203376?status=active",
      "type": "application/rdap+json"
    },
    {
      "value": "https://rdap.db.ripe.net/autnum/203376",
      "rel": "rdap-bottom",
      "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-bottom/AS203376",
      "type": "application/rdap+json"
    },
    {
      "value": "https://rdap.db.ripe.net/autnum/203376",
      "rel": "self",
      "href": "https://rdap.db.ripe.net/autnum/203376",
      "type": "application/rdap+json"
    },
    {
      "value": "http://www.ripe.net/data-tools/support/documentation/terms",
      "rel": "copyright",
      "href": "http://www.ripe.net/data-tools/support/documentation/terms"
    }
  ],
  "events": [
    {
      "eventAction": "registration",
      "eventDate": "2016-02-02T12:45:15Z"
    },
    {
      "eventAction": "last changed",
      "eventDate": "2018-09-04T11:44:31Z"
    }
  ],
  "rdapConformance": [
    "nro_rdap_profile_asn_flat_0",
    "rirSearch1",
    "autnums",
    "cidr0",
    "rdap_level_0",
    "nro_rdap_profile_0",
    "redacted"
  ],
  "notices": [
    {
      "title": "Filtered",
      "description": [
        "This output has been filtered."
      ]
    },
    {
      "title": "Whois Inaccuracy Reporting",
      "description": [
        "If you see inaccuracies in the results, please visit:"
      ],
      "links": [
        {
          "value": "https://rdap.db.ripe.net/autnum/203376",
          "rel": "inaccuracy-report",
          "href": "https://www.ripe.net/contact-form?topic=ripe_dbm&show_form=true",
          "type": "text/html"
        }
      ]
    },
    {
      "title": "Source",
      "description": [
        "Objects returned came from source",
        "RIPE"
      ]
    },
    {
      "title": "Terms and Conditions",
      "description": [
        "This is the RIPE Database query service. The objects are in RDAP format."
      ],
      "links": [
        {
          "value": "https://rdap.db.ripe.net/autnum/203376",
          "rel": "terms-of-service",
          "href": "http://www.ripe.net/db/support/db-terms-conditions.pdf",
          "type": "application/pdf"
        }
      ]
    }
  ],
  "port43": "whois.ripe.net",
  "objectClassName": "autnum",
  "redacted": [
    {
      "name": {
        "description": "Personal e-mail information"
      },
      "reason": {
        "description": "Personal data"
      },
      "prePath": "$.entities[?(@.handle=='JO3848-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
      "method": "removal"
    },
    {
      "name": {
        "description": "Personal e-mail information"
      },
      "reason": {
        "description": "Personal data"
      },
      "prePath": "$.entities[?(@.handle=='ORG-MS392-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
      "method": "removal"
    },
    {
      "name": {
        "description": "Personal e-mail information"
      },
      "reason": {
        "description": "Personal data"
      },
      "prePath": "$.entities[?(@.handle=='TO2137-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
      "method": "removal"
    },
    {
      "name": {
        "description": "Personal e-mail information"
      },
      "reason": {
        "description": "Personal data"
      },
      "prePath": "$.entities[?(@.handle=='AR35020-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
      "method": "removal"
    }
  ]
}

Contact details of private individuals are redacted.