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AS399449

Kyndryl

ARIN US active Announced
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Organization
Kyndryl
KYNDRYL-POP-ASN
Registered
Mar 16, 2021
5 years ago
IPv4 Prefixes
6
1,536 addresses
IPv6 Prefixes
0
BGP Neighbours
3
3 upstream/peer · 0 downstream

Registration

AS Number AS399449 AS Name KYNDRYL-POP-ASN Organization Kyndryl Organization ID KYNDR Address One Vanderbilt Avenue, 15th Floor HQ, New York, NY, 10017, United States Country United States (US) Registry ARIN Allocated Mar 16, 2021 Record Created Mar 16, 2021 Last Updated May 19, 2023 Status
active
WHOIS Server whois.arin.net AS Description KYNDRYL-POP-ASN - Kyndryl, US Abuse Email [email protected] Abuse Phone +1-512-659-2809

IPv4 Prefixes

6 prefixes · 1,536 addresses Routing data as of 2026-10-07 00:00 UTC

PrefixRangeAddresses
158.88.0.0/24158.88.0.0 – 158.88.0.255256
158.88.8.0/24158.88.8.0 – 158.88.8.255256
158.88.15.0/24158.88.15.0 – 158.88.15.255256
158.88.16.0/24158.88.16.0 – 158.88.16.255256
158.88.24.0/24158.88.24.0 – 158.88.24.255256
158.88.48.0/24158.88.48.0 – 158.88.48.255256

IPv6 Prefixes

This AS does not currently announce any IPv6 prefixes.

BGP Neighbours

3 unique neighbours · 3 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 (3)

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
AS3300BT British Telecommunications Limited2719890
AS703UUNET - Verizon Business2643330
AS702UUNET - Verizon Business2626600

Raw RDAP Response

{
  "endAutnum": 399449,
  "entities": [
    {
      "entities": [
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-07-01T04:34:48-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2022-03-28T11:41:23-04:00"
            }
          ],
          "handle": "IPREG4-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/IPREG4-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/399449"
            },
            {
              "href": "https://whois.arin.net/rest/poc/IPREG4-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/399449"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "remarks": [
            {
              "description": [
                "Kyndryl IP Registrar"
              ],
              "title": "Registration Comments"
            }
          ],
          "roles": [
            "administrative",
            "abuse",
            "noc",
            "dns",
            "technical",
            "routing"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "One Vanderbilt Avenue, 15th Floor HQ\nNew York\nNY\n10017\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "ipreg"
              ],
              [
                "org",
                {},
                "text",
                "Kyndryl"
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-512-659-2809"
              ]
            ]
          ]
        }
      ],
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2022-09-21T14:16:42-04:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "2022-06-29T10:09:25-04:00"
        }
      ],
      "handle": "KYNDR",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/KYNDR",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/autnum/399449"
        },
        {
          "href": "https://whois.arin.net/rest/org/KYNDR",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/autnum/399449"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "remarks": [
        {
          "description": [
            "Kyndryl IP ORG"
          ],
          "title": "Registration Comments"
        }
      ],
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Kyndryl"
          ],
          [
            "adr",
            {
              "label": "One Vanderbilt Avenue, 15th Floor HQ\nNew York\nNY\n10017\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2023-05-19T09:42:52-04:00"
    },
    {
      "eventAction": "registration",
      "eventDate": "2021-03-16T11:09:10-04:00"
    }
  ],
  "handle": "AS399449",
  "links": [
    {
      "href": "https://rdap.arin.net/registry/autnum/399449",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.arin.net/registry/autnum/399449"
    },
    {
      "href": "https://whois.arin.net/rest/asn/AS399449",
      "rel": "alternate",
      "type": "application/xml",
      "value": "https://rdap.arin.net/registry/autnum/399449"
    }
  ],
  "name": "KYNDRYL-POP-ASN",
  "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/autnum/399449"
        }
      ],
      "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/autnum/399449"
        }
      ],
      "title": "Whois Inaccuracy Reporting"
    },
    {
      "description": [
        "Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
      ],
      "title": "Copyright Notice"
    }
  ],
  "objectClassName": "autnum",
  "port43": "whois.arin.net",
  "rdapConformance": [
    "nro_rdap_profile_0",
    "rdap_level_0",
    "nro_rdap_profile_asn_flat_0"
  ],
  "startAutnum": 399449,
  "status": [
    "active"
  ]
}

Contact details of private individuals are redacted.