IP Lookup ASN Lookup Learning Hub
Dashboard / ASN Lookup / AS40138

AS40138

Mach Dilemma, LLC

ARIN US active Announced
More ASNs in the United States →
Organization
Mach Dilemma, LLC
MDNET
Registered
Apr 24, 2014
12 years ago
IPv4 Prefixes
12
2,560 addresses
IPv6 Prefixes
39
40 × /48
BGP Neighbours
16
7 upstream/peer · 0 downstream · 9 collector-only

Registration

AS Number AS40138 AS Name MDNET Organization Mach Dilemma, LLC Organization ID MDL-43 Address PO Box 3006, Walnut Creek, CA, 94598-0006, United States Country United States (US) Registry ARIN Allocated Apr 24, 2014 Record Created Apr 24, 2014 Last Updated Apr 05, 2024 Status
active
WHOIS Server whois.arin.net AS Description MDNET - Mach Dilemma, LLC, US Remarks Geofeed https://opengeofeed.org/feed/as40138.csv Abuse Email [email protected] Abuse Phone +1-415-683-6453

IPv4 Prefixes

12 prefixes · 2,560 addresses · 8 top-level Routing data as of 2026-10-09 00:00 UTC

PrefixRangeAddresses
44.30.92.0/2444.30.92.0 – 44.30.92.255256
44.31.181.0/2444.31.181.0 – 44.31.181.255256
45.127.112.0/2345.127.112.0 – 45.127.113.255512
45.127.112.0/2445.127.112.0 – 45.127.112.255256
45.127.113.0/2445.127.113.0 – 45.127.113.255256
45.127.114.0/2445.127.114.0 – 45.127.114.255256
45.127.115.0/2445.127.115.0 – 45.127.115.255256
103.196.36.0/23103.196.36.0 – 103.196.37.255512
103.196.36.0/24103.196.36.0 – 103.196.36.255256
103.196.37.0/24103.196.37.0 – 103.196.37.255256
103.196.38.0/24103.196.38.0 – 103.196.38.255256
198.72.6.0/24198.72.6.0 – 198.72.6.255256

BGP Neighbours

16 unique neighbours · 7 upstream/peer · 0 downstream · 9 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 (7)

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
AS20473AS-VULTR - The Constant Company, LLC2,7411,39111,464
AS36236NETACTUATE - NetActuate, Inc535581,197
AS6939HURRICANE - Hurricane Electric LLC3251,502310
AS47787EDGOO EDGOO NETWORKS UNIPESSOAL LDA249939
AS20326TERASWITCH - TeraSwitch Networks Inc.101
AS58057SECUREBIT Securebit AG101
AS394256CLOUDSINGULARITY - Tech Futures Interactive Inc.140

Collector-only (9)

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
AS1003ANDREWNET - andrewnet131
AS1828UNITAS - Unitas Global101
AS9002RETN-AS RETN Limited141
AS24482SGGS-AS-AP - SG.GS1123
AS34927iFog-GmbH iFog GmbH101
AS35280F5 F5 Networks SARL140
AS49544i3Dnet i3D.net B.V182
AS56662EUTPNET Marcin Gondek102
AS200454TOM-AS Tomas Oliveira Valente Leite de Castro101

Raw RDAP Response

{
  "endAutnum": 40138,
  "entities": [
    {
      "entities": [
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2025-07-28T12:20:09-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2014-03-13T16:53:08-04:00"
            }
          ],
          "handle": "DAMMM2-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/DAMMM2-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/40138"
            },
            {
              "href": "https://whois.arin.net/rest/poc/DAMMM2-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/40138"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "remarks": [
            {
              "description": [
                "Email is preferred for all contacts."
              ],
              "title": "Registration Comments"
            }
          ],
          "roles": [
            "technical",
            "abuse",
            "noc",
            "administrative"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "PO Box 3006\nWalnut Creek\nCA\n94598-0006\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "Mike Damm"
              ],
              [
                "n",
                {},
                "text",
                [
                  "Damm",
                  "Mike",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "kind",
                {},
                "text",
                "individual"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-415-683-6453"
              ]
            ]
          ]
        }
      ],
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2024-10-29T10:27:59-04:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "2014-04-15T15:35:00-04:00"
        }
      ],
      "handle": "MDL-43",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/MDL-43",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/autnum/40138"
        },
        {
          "href": "https://whois.arin.net/rest/org/MDL-43",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/autnum/40138"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Mach Dilemma, LLC"
          ],
          [
            "adr",
            {
              "label": "PO Box 3006\nWalnut Creek\nCA\n94598-0006\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2024-04-05T02:00:41-04:00"
    },
    {
      "eventAction": "registration",
      "eventDate": "2014-04-24T10:03:53-04:00"
    }
  ],
  "handle": "AS40138",
  "links": [
    {
      "href": "https://rdap.arin.net/registry/autnum/40138",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.arin.net/registry/autnum/40138"
    },
    {
      "href": "https://whois.arin.net/rest/asn/AS40138",
      "rel": "alternate",
      "type": "application/xml",
      "value": "https://rdap.arin.net/registry/autnum/40138"
    }
  ],
  "name": "MDNET",
  "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/40138"
        }
      ],
      "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/40138"
        }
      ],
      "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"
  ],
  "remarks": [
    {
      "description": [
        "Geofeed https://opengeofeed.org/feed/as40138.csv"
      ],
      "title": "Registration Comments"
    }
  ],
  "startAutnum": 40138,
  "status": [
    "active"
  ]
}

Contact details of private individuals are redacted.