IP Lookup ASN Lookup Learning Hub
Dashboard / ASN Lookup / AS204757

AS204757

Reactive Markets Limited

RIPE NCC GB active Announced
More ASNs in the United Kingdom →
Organization
Reactive Markets Limited
ReactiveMarkets
Registered
Jan 21, 2026
9 months ago
IPv4 Prefixes
1
256 addresses
IPv6 Prefixes
0
BGP Neighbours
1
1 upstream/peer · 0 downstream

Registration

AS Number AS204757 AS Name ReactiveMarkets Organization Reactive Markets Limited Organization ID ORG-RML21-RIPE Address The Workstation, Rivers Lodge, West Common, AL5 2JD, Harpenden, UNITED KINGDOM Country United Kingdom (GB) Registry RIPE NCC Allocated Jan 21, 2026 Record Created Jan 21, 2026 Last Updated Jul 11, 2026 Status
active
WHOIS Server whois.ripe.net AS Description ReactiveMarkets - Reactive Markets Limited, GB Remarks -----BEGIN CERTIFICATE-----MIIDhzCCAm+gAwIBAgIUOLQCuEX0Gl6VlXnNYrZGOZ2+Xv0wDQYJKoZIhvcNAQELBQAwUzELMAkGA1UEBhMCR0IxEDAOBgNVBAgMB0VuZ2xhbmQxDzANBgNVBAcMBkxvbmRvbjEhMB8GA1UECgwYUmVhY3RpdmUgTWFya2V0cyBMaW1pdGVkMB4XDTI2MDcxMTA4NTI0OVoXDTI3MDcxMTA4NTI0OVowUzELMAkGA1UEBhMCR0IxEDAOBgNVBAgMB0VuZ2xhbmQxDzANB… Abuse Email [email protected]

IPv4 Prefixes

1 prefix · 256 addresses Routing data as of 2026-10-07 08:00 UTC

PrefixRangeAddresses
185.60.223.0/24185.60.223.0 – 185.60.223.255256

IPv6 Prefixes

This AS does not currently announce any IPv6 prefixes.

BGP Neighbours

1 unique neighbour · 1 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 (1)

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
AS16509AMAZON-02 - Amazon.com, Inc.2743600

Raw RDAP Response

{
  "handle": "AS204757",
  "startAutnum": 204757,
  "endAutnum": 204757,
  "name": "ReactiveMarkets",
  "status": [
    "active"
  ],
  "entities": [
    {
      "handle": "IA7476-RIPE",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Infrastructure"
          ],
          [
            "kind",
            {},
            "text",
            "group"
          ],
          [
            "adr",
            {
              "label": "UNITED KINGDOM\nHarpenden\nAL5 2JD\nThe Workstation, Rivers Lodge, West Common"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "tel",
            {
              "type": "voice"
            },
            "text",
            "+442045769331"
          ]
        ]
      ],
      "roles": [
        "administrative",
        "technical"
      ],
      "links": [
        {
          "value": "https://rdap.db.ripe.net/autnum/204757",
          "rel": "self",
          "href": "https://rdap.db.ripe.net/entity/IA7476-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": "lir-uk-reactivemarkets-1-MNT",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "REDACTED"
          ],
          [
            "kind",
            {},
            "text",
            "individual"
          ]
        ]
      ],
      "roles": [
        "registrant"
      ],
      "links": [
        {
          "value": "https://rdap.db.ripe.net/autnum/204757",
          "rel": "self",
          "href": "https://rdap.db.ripe.net/entity/lir-uk-reactivemarkets-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-RML21-RIPE",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Reactive Markets Limited"
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ],
          [
            "adr",
            {
              "label": "The Workstation, Rivers Lodge, West Common\nAL5 2JD\nHarpenden\nUNITED KINGDOM"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "tel",
            {
              "type": "voice"
            },
            "text",
            "+442045769331"
          ]
        ]
      ],
      "roles": [
        "registrant"
      ],
      "links": [
        {
          "value": "https://rdap.db.ripe.net/autnum/204757",
          "rel": "self",
          "href": "https://rdap.db.ripe.net/entity/ORG-RML21-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/204757",
          "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": "AR77502-RIPE",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Abuse-C Role"
          ],
          [
            "kind",
            {},
            "text",
            "group"
          ],
          [
            "adr",
            {
              "label": "UNITED KINGDOM\nHarpenden\nAL5 2JD\nThe Workstation, Rivers Lodge, West Common"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "email",
            {
              "type": "abuse"
            },
            "text",
            "[email protected]"
          ]
        ]
      ],
      "roles": [
        "abuse"
      ],
      "entities": [
        {
          "handle": "lir-uk-reactivemarkets-1-MNT",
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "fn",
                {},
                "text",
                "REDACTED"
              ],
              [
                "kind",
                {},
                "text",
                "individual"
              ]
            ]
          ],
          "roles": [
            "registrant"
          ],
          "links": [
            {
              "value": "https://rdap.db.ripe.net/autnum/204757",
              "rel": "self",
              "href": "https://rdap.db.ripe.net/entity/lir-uk-reactivemarkets-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"
        }
      ],
      "objectClassName": "entity"
    }
  ],
  "remarks": [
    {
      "description": [
        "-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----"
      ]
    }
  ],
  "links": [
    {
      "value": "https://rdap.db.ripe.net/autnum/204757",
      "rel": "rdap-up",
      "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS204757",
      "type": "application/rdap+json"
    },
    {
      "value": "https://rdap.db.ripe.net/autnum/204757",
      "rel": "rdap-up rdap-active",
      "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS204757?status=active",
      "type": "application/rdap+json"
    },
    {
      "value": "https://rdap.db.ripe.net/autnum/204757",
      "rel": "rdap-down",
      "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-down/AS204757",
      "type": "application/rdap+json"
    },
    {
      "value": "https://rdap.db.ripe.net/autnum/204757",
      "rel": "rdap-top",
      "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS204757",
      "type": "application/rdap+json"
    },
    {
      "value": "https://rdap.db.ripe.net/autnum/204757",
      "rel": "rdap-top rdap-active",
      "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS204757?status=active",
      "type": "application/rdap+json"
    },
    {
      "value": "https://rdap.db.ripe.net/autnum/204757",
      "rel": "rdap-bottom",
      "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-bottom/AS204757",
      "type": "application/rdap+json"
    },
    {
      "value": "https://rdap.db.ripe.net/autnum/204757",
      "rel": "self",
      "href": "https://rdap.db.ripe.net/autnum/204757",
      "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": "2026-01-21T13:16:39Z"
    },
    {
      "eventAction": "last changed",
      "eventDate": "2026-07-11T09:19:37Z"
    }
  ],
  "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/204757",
          "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/204757",
          "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": "$.entities[?(@.handle=='IA7476-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
      "method": "removal"
    },
    {
      "name": {
        "description": "Personal e-mail information"
      },
      "reason": {
        "description": "Personal data"
      },
      "prePath": "$.entities[?(@.handle=='ORG-RML21-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
      "method": "removal"
    },
    {
      "name": {
        "description": "Personal e-mail information"
      },
      "reason": {
        "description": "Personal data"
      },
      "prePath": "$.entities[?(@.handle=='AR77502-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
      "method": "removal"
    }
  ]
}

Contact details of private individuals are redacted.