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AS26073

Cofractal, Inc.

ARIN US active Announced
More ASNs in the United States →
Organization
Cofractal, Inc.
COFRACTAL-001
Registered
Jun 15, 2018
8 years ago
IPv4 Prefixes
19
4,864 addresses
IPv6 Prefixes
21
1.1M × /48
BGP Neighbours
24
6 upstream/peer · 16 downstream · 2 collector-only

Registration

AS Number AS26073 AS Name COFRACTAL-001 Organization Cofractal, Inc. Organization ID COFRA Address 209 E Java Drive. #61593, Sunnyvale, CA, 94089, United States Country United States (US) Registry ARIN Allocated Jun 15, 2018 Record Created Jun 15, 2018 Last Updated Aug 05, 2019 Status
active
WHOIS Server whois.arin.net AS Description COFRACTAL-001 - Cofractal, Inc., US Abuse Email [email protected] Abuse Phone +1-650-300-0520

IPv4 Prefixes

19 prefixes · 4,864 addresses · 10 top-level Routing data as of 2026-10-09 16:00 UTC

PrefixRangeAddresses
23.139.160.0/2423.139.160.0 – 23.139.160.255256
23.165.224.0/2223.165.224.0 – 23.165.227.2551,024
23.165.224.0/2323.165.224.0 – 23.165.225.255512
23.165.224.0/2423.165.224.0 – 23.165.224.255256
23.165.225.0/2423.165.225.0 – 23.165.225.255256
23.165.226.0/2323.165.226.0 – 23.165.227.255512
23.165.227.0/2423.165.227.0 – 23.165.227.255256
44.4.41.0/2444.4.41.0 – 44.4.41.255256
158.51.16.0/22158.51.16.0 – 158.51.19.2551,024
158.51.16.0/24158.51.16.0 – 158.51.16.255256
158.51.17.0/24158.51.17.0 – 158.51.17.255256
199.19.152.0/24199.19.152.0 – 199.19.152.255256
199.19.153.0/24199.19.153.0 – 199.19.153.255256
199.255.16.0/24199.255.16.0 – 199.255.16.255256
199.255.18.0/24199.255.18.0 – 199.255.18.255256
199.255.19.0/24199.255.19.0 – 199.255.19.255256
208.80.44.0/22208.80.44.0 – 208.80.47.2551,024
208.80.44.0/23208.80.44.0 – 208.80.45.255512
208.80.44.0/24208.80.44.0 – 208.80.44.255256

BGP Neighbours

24 unique neighbours · 6 upstream/peer · 16 downstream · 2 collector-only. 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 (6)

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
AS174COGENT-174 - Cogent Communications, LLC1,9042,5534,220
AS6939HURRICANE - Hurricane Electric LLC1,7961,5406,606
AS1299TWELVE99 Arelion Sweden AB1,7565,3213,914
AS60011MYTHIC-BEASTS-USA Mythic Beasts Ltd8020
AS10111ZEONET-AS-AP - Zeofast Network6018
AS6424EDGOO EDGOO NETWORKS UNIPESSOAL LDA250

Downstream side (16)

Networks seen to the right of this AS in BGP paths — networks whose routes it carries, typically its customers (downstreams).

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS972CF3 - Cofractal, Inc.4910716
AS215069oocm Office of Consensus Maintenance LLC4723311,663
AS52025PARADOXNETWORKS-LIMITED ParadoxNetworks Limited3777560
AS205602BRINSTAR Seamus Caveney345331735
AS923HWS - Aconite Systems LLC343663662
AS401461ACCELERATE - Accelerate Networks LLC342332335
AS395388T4T-NET - int3 Systems, LLC339329329
AS21903ARNHEM-01 - Arnhem Networks LLC25401,038
AS394119EXPERIMENTAL-COMPUTING-FACILITY - eXperimental Computing Facility Foundation2470368
AS205479LGB-AS Luke Eiji Granger-Brown2456335
AS62623COFRACTAL-002 - Cofractal, Inc.2420349
AS399135617A-AS-1 - 617A Corporation233524332
AS64241WOBSCALE - Wobscale Technologies, LLC20726710
AS54429LOCAL-CONNECTIVITY-LAB - Local Connectivity Lab368810
AS7034PHIREPHLY-DESIGN - PhirePhly Design140
AS32872DIFF-COMP-01 - Difficult Computing, LLC101

Collector-only (2)

Networks seen to the left of this AS only when they peer directly with a RIPE RIS route collector, so the adjacency may be an artefact of that peering; many of them also appear on the downstream side.

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS49544i3Dnet i3D.net B.V73232
AS36236NETACTUATE - NetActuate, Inc51415

Raw RDAP Response

{
  "endAutnum": 26073,
  "entities": [
    {
      "entities": [
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-06-07T16:22:31-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2019-08-04T15:50:43-04:00"
            }
          ],
          "handle": "OPERA632-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/OPERA632-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/26073"
            },
            {
              "href": "https://whois.arin.net/rest/poc/OPERA632-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/26073"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "administrative",
            "abuse"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "209 E Java Dr. #61593\nSunnyvale\nCA\n94089\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "Operations"
              ],
              [
                "org",
                {},
                "text",
                "Cofractal, Inc."
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-650-300-0520"
              ]
            ]
          ]
        },
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-06-07T16:22:24-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2019-08-11T23:13:53-04:00"
            }
          ],
          "handle": "CNE85-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/CNE85-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/26073"
            },
            {
              "href": "https://whois.arin.net/rest/poc/CNE85-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/26073"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "technical"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "209 E Java Drive. #61593\nSunnyvale\nCA\n94089\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "Cofractal Network Engineering"
              ],
              [
                "org",
                {},
                "text",
                "Cofractal, Inc."
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-650-300-0520"
              ]
            ]
          ]
        }
      ],
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2024-11-25T11:09:46-05:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "2018-04-13T13:11:11-04:00"
        }
      ],
      "handle": "COFRA",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/COFRA",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/autnum/26073"
        },
        {
          "href": "https://whois.arin.net/rest/org/COFRA",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/autnum/26073"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "remarks": [
        {
          "description": [
            "NOC Operates 24/7"
          ],
          "title": "Registration Comments"
        }
      ],
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Cofractal, Inc."
          ],
          [
            "adr",
            {
              "label": "209 E Java Drive. #61593\nSunnyvale\nCA\n94089\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ]
        ]
      ]
    },
    {
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2026-06-07T16:22:31-04:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "2019-08-04T15:50:43-04:00"
        }
      ],
      "handle": "OPERA632-ARIN",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/OPERA632-ARIN",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/autnum/26073"
        },
        {
          "href": "https://whois.arin.net/rest/poc/OPERA632-ARIN",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/autnum/26073"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "roles": [
        "technical",
        "abuse",
        "noc"
      ],
      "status": [
        "validated"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "adr",
            {
              "label": "209 E Java Dr. #61593\nSunnyvale\nCA\n94089\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "fn",
            {},
            "text",
            "Operations"
          ],
          [
            "org",
            {},
            "text",
            "Cofractal, Inc."
          ],
          [
            "kind",
            {},
            "text",
            "group"
          ],
          [
            "email",
            {},
            "text",
            "[email protected]"
          ],
          [
            "tel",
            {
              "type": [
                "work",
                "voice"
              ]
            },
            "text",
            "+1-650-300-0520"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2019-08-05T14:41:15-04:00"
    },
    {
      "eventAction": "registration",
      "eventDate": "2018-06-15T09:43:21-04:00"
    }
  ],
  "handle": "AS26073",
  "links": [
    {
      "href": "https://rdap.arin.net/registry/autnum/26073",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.arin.net/registry/autnum/26073"
    },
    {
      "href": "https://whois.arin.net/rest/asn/AS26073",
      "rel": "alternate",
      "type": "application/xml",
      "value": "https://rdap.arin.net/registry/autnum/26073"
    }
  ],
  "name": "COFRACTAL-001",
  "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/26073"
        }
      ],
      "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/26073"
        }
      ],
      "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": 26073,
  "status": [
    "active"
  ]
}

Contact details of private individuals are redacted.