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AS33661

Comcast Cable Communications, LLC

ARIN US active Announced
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Organization
Comcast Cable Communications, LLC
CMCS
Registered
Feb 16, 2005
21 years ago
IPv4 Prefixes
6
1,536 addresses
IPv6 Prefixes
15
15 × /48
BGP Neighbours
23
1 upstream/peer · 22 downstream

Registration

AS Number AS33661 AS Name CMCS Organization Comcast Cable Communications, LLC Organization ID CCCS Address 1800 Bishops Gate Blvd, Mt Laurel, NJ, 08054, United States Country United States (US) Registry ARIN Allocated Feb 16, 2005 Record Created Feb 16, 2005 Last Updated Jan 25, 2021 Status
active
WHOIS Server whois.arin.net AS Description CMCS - Comcast Cable Communications, LLC, US Abuse Email [email protected] Abuse Phone +1-888-565-4329

IPv4 Prefixes

6 prefixes · 1,536 addresses Routing data as of 2026-10-08 00:00 UTC

PrefixRangeAddresses
50.218.97.0/2450.218.97.0 – 50.218.97.255256
50.220.33.0/2450.220.33.0 – 50.220.33.255256
50.226.0.0/2450.226.0.0 – 50.226.0.255256
50.227.97.0/2450.227.97.0 – 50.227.97.255256
50.236.155.0/2450.236.155.0 – 50.236.155.255256
50.237.76.0/2450.237.76.0 – 50.237.76.255256

BGP Neighbours

23 unique neighbours · 1 upstream/peer · 22 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
AS7922COMCAST-7922 - Comcast Cable Communications, LLC4,51513,0725,645

Downstream side (22)

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

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS17035NBCUNI-17035 - NBCUniversal5441,3230
AS54113FASTLY - Fastly, Inc.351333335
AS63402UCDP-ORLCORP - Universal Orlando2911,4080
AS26876CHICOS - chico's fas inc2859830
AS46576LOEWS-HOTELS-ORLANDO - Loews Hotels at Universal Orlando2822,9970
AS63264ACW-ASN - Alternative Choice Wireless, LLC2736660
AS46999CREWSBANKCORP - Crews Banking Corporation2696660
AS54119WHITESKY-COMMUNICATIONS-2 - WhiteSky Communications, LLC.2613330
AS6931RINGLING - Ringling College of Art and Design2606630
AS36040YOUTUBE - Google LLC2593320
AS36763WBBH - Hearst-Argyle Television, Inc.2573310
AS401671ACCESSPARKS-POPS - ACCESSPARKS LLC2460333
AS396910AS-LCPA-14 - Lee County Port Authority2353070
AS53937SMH-AS-NO - Sarasota Memorial Hospital2004860
AS398641CHCFLORG-001 - Community Health Centers, Inc.65820
AS395036CITYOFSANIBEL - City of Sanibel30660
AS30415SCG-BGP01 - Sarasota County Government14290
AS395659SEAWORLD-PARKS-AND-ENTERTAINMENT - SeaWorld Parks & Entertainment, Inc.10130
AS396291NCH-HEALTHCARE-SYSTEM - NCH Healthcare System, Inc.10130
AS23542CWI-FNG-ASN - Florida's Natural Growers, Inc.670
AS398743NEMOURS - The Nemours Foundation6350
AS53445TVHEALTH - The Villages Health110

Raw RDAP Response

{
  "endAutnum": 33661,
  "entities": [
    {
      "entities": [
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-05-21T11:13:31-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2002-09-30T17:45:14-04:00"
            }
          ],
          "handle": "NAPO-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/NAPO-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/33661"
            },
            {
              "href": "https://whois.arin.net/rest/poc/NAPO-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/33661"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "remarks": [
            {
              "description": [
                "This contact is to be used for network abuse, spam/phishing, and legally constituted requests for information or action. It is not for any other purpose."
              ],
              "title": "Registration Comments"
            }
          ],
          "roles": [
            "abuse"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
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                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "1800 Bishops Gate Blvd\nMount Laurel\nNJ\n08054\nUnited States"
                },
                "text",
                [
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                  "",
                  "",
                  "",
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                ]
              ],
              [
                "fn",
                {},
                "text",
                "Network Abuse and Policy Observance"
              ],
              [
                "org",
                {},
                "text",
                "Comcast Cable Communications, Inc."
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
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                  ]
                },
                "text",
                "+1-888-565-4329"
              ]
            ]
          ]
        },
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-09-02T12:36:43-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2020-11-18T14:40:04-05:00"
            }
          ],
          "handle": "ROUTI25-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/ROUTI25-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/33661"
            },
            {
              "href": "https://whois.arin.net/rest/poc/ROUTI25-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/33661"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "remarks": [
            {
              "description": [
                "Issues related to Routing, RPKI, Route Registry.",
                "Not monitored 24/7.",
                "Please email, there is no available phone number."
              ],
              "title": "Registration Comments"
            }
          ],
          "roles": [
            "routing"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "1800 Bishops Gate Blvd\nMt Laurel\nNJ\n08054\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
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                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "Routing"
              ],
              [
                "org",
                {},
                "text",
                "Comcast"
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-856-792-2300"
              ]
            ]
          ]
        },
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-09-21T12:18:12-04:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2002-06-12T11:30:41-04:00"
            }
          ],
          "handle": "IC161-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/IC161-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/33661"
            },
            {
              "href": "https://whois.arin.net/rest/poc/IC161-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/33661"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "remarks": [
            {
              "description": [
                "This is not an Abuse, Spam, or Legal notification POC.",
                "Please use [email protected] for all security, takedown, and emergency issues. This IP Registration address cannot address those issues.",
                "Please email, there is no available phone number."
              ],
              "title": "Registration Comments"
            }
          ],
          "roles": [
            "technical",
            "administrative"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "1800 Bishops Gate Blvd\nMount Laurel\nNJ\n08054\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "Comcast Cable Communications Inc"
              ],
              [
                "org",
                {},
                "text",
                "Comcast Cable Communications, Inc."
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-856-792-2300"
              ]
            ]
          ]
        }
      ],
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2020-11-18T14:58:28-05:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "2001-09-18T00:00:00-04:00"
        }
      ],
      "handle": "CCCS",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/CCCS",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/autnum/33661"
        },
        {
          "href": "https://whois.arin.net/rest/org/CCCS",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/autnum/33661"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "Comcast Cable Communications, LLC"
          ],
          [
            "adr",
            {
              "label": "1800 Bishops Gate Blvd\nMt Laurel\nNJ\n08054\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2021-01-25T15:24:22-05:00"
    },
    {
      "eventAction": "registration",
      "eventDate": "2005-02-16T14:59:31-05:00"
    }
  ],
  "handle": "AS33661",
  "links": [
    {
      "href": "https://rdap.arin.net/registry/autnum/33661",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.arin.net/registry/autnum/33661"
    },
    {
      "href": "https://whois.arin.net/rest/asn/AS33661",
      "rel": "alternate",
      "type": "application/xml",
      "value": "https://rdap.arin.net/registry/autnum/33661"
    }
  ],
  "name": "CMCS",
  "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/33661"
        }
      ],
      "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/33661"
        }
      ],
      "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": 33661,
  "status": [
    "active"
  ]
}

Contact details of private individuals are redacted.