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AS38819

CSL Limited

APNIC HK active Announced
More ASNs in Hong Kong SAR China →
Organization
CSL Limited
HKCSL-AS-AP
Registered
Oct 25, 2007
18 years ago
IPv4 Prefixes
69
45,056 addresses
IPv6 Prefixes
16
131,072 × /48
BGP Neighbours
8
4 upstream/peer · 1 downstream · 3 collector-only

Registration

AS Number AS38819 AS Name HKCSL-AS-AP Organization CSL Limited Organization ID ORG-CL2-AP Address 3rd Floor, Lai Chi Kok Engineering Center II, 4 Yuet Lun Street Country Hong Kong SAR China (HK) Registry APNIC Allocated Oct 25, 2007 Record Created Sep 04, 2008 Last Updated Jul 07, 2020 Status
active
WHOIS Server whois.apnic.net AS Description HKCSL-AS-AP - HKCSL GPRS NETWORK, HK Remarks HKCSL GPRS NETWORK Abuse Email [email protected]

IPv4 Prefixes

69 prefixes · 45,056 addresses · 3 top-level Routing data as of 2026-10-06 16:00 UTC

14.0.0.0/8 · 43 prefixes · 32,768 addresses
PrefixRangeAddresses
14.0.128.0/1714.0.128.0 – 14.0.255.25532,768
14.0.128.0/2414.0.128.0 – 14.0.128.255256
14.0.129.0/2414.0.129.0 – 14.0.129.255256
14.0.130.0/2414.0.130.0 – 14.0.130.255256
14.0.131.0/2414.0.131.0 – 14.0.131.255256
14.0.132.0/2214.0.132.0 – 14.0.135.2551,024
14.0.136.0/2214.0.136.0 – 14.0.139.2551,024
14.0.136.0/2414.0.136.0 – 14.0.136.255256
14.0.140.0/2414.0.140.0 – 14.0.140.255256
14.0.141.0/2414.0.141.0 – 14.0.141.255256
14.0.142.0/2414.0.142.0 – 14.0.142.255256
14.0.143.0/2414.0.143.0 – 14.0.143.255256
14.0.144.0/2414.0.144.0 – 14.0.144.255256
14.0.145.0/2414.0.145.0 – 14.0.145.255256
14.0.146.0/2414.0.146.0 – 14.0.146.255256
14.0.152.0/2114.0.152.0 – 14.0.159.2552,048
14.0.160.0/2114.0.160.0 – 14.0.167.2552,048
14.0.166.0/2414.0.166.0 – 14.0.166.255256
14.0.167.0/2414.0.167.0 – 14.0.167.255256
14.0.168.0/2114.0.168.0 – 14.0.175.2552,048
14.0.176.0/2114.0.176.0 – 14.0.183.2552,048
14.0.182.0/2414.0.182.0 – 14.0.182.255256
14.0.183.0/2414.0.183.0 – 14.0.183.255256
14.0.192.0/2414.0.192.0 – 14.0.192.255256
14.0.193.0/2414.0.193.0 – 14.0.193.255256
14.0.194.0/2414.0.194.0 – 14.0.194.255256
14.0.195.0/2414.0.195.0 – 14.0.195.255256
14.0.196.0/2214.0.196.0 – 14.0.199.2551,024
14.0.200.0/2414.0.200.0 – 14.0.200.255256
14.0.201.0/2414.0.201.0 – 14.0.201.255256
14.0.202.0/2314.0.202.0 – 14.0.203.255512
14.0.204.0/2314.0.204.0 – 14.0.205.255512
14.0.206.0/2414.0.206.0 – 14.0.206.255256
14.0.207.0/2414.0.207.0 – 14.0.207.255256
14.0.208.0/2114.0.208.0 – 14.0.215.2552,048
14.0.215.0/2414.0.215.0 – 14.0.215.255256
14.0.216.0/2114.0.216.0 – 14.0.223.2552,048
14.0.223.0/2414.0.223.0 – 14.0.223.255256
14.0.224.0/2114.0.224.0 – 14.0.231.2552,048
14.0.226.0/2414.0.226.0 – 14.0.226.255256
14.0.232.0/2114.0.232.0 – 14.0.239.2552,048
14.0.240.0/2114.0.240.0 – 14.0.247.2552,048
14.0.247.0/2414.0.247.0 – 14.0.247.255256
110.0.0.0/8 · 19 prefixes · 8,192 addresses
PrefixRangeAddresses
110.4.0.0/19110.4.0.0 – 110.4.31.2558,192
110.4.0.0/24110.4.0.0 – 110.4.0.255256
110.4.1.0/24110.4.1.0 – 110.4.1.255256
110.4.2.0/24110.4.2.0 – 110.4.2.255256
110.4.4.0/24110.4.4.0 – 110.4.4.255256
110.4.8.0/24110.4.8.0 – 110.4.8.255256
110.4.9.0/24110.4.9.0 – 110.4.9.255256
110.4.11.0/24110.4.11.0 – 110.4.11.255256
110.4.13.0/24110.4.13.0 – 110.4.13.255256
110.4.14.0/24110.4.14.0 – 110.4.14.255256
110.4.15.0/24110.4.15.0 – 110.4.15.255256
110.4.16.0/24110.4.16.0 – 110.4.16.255256
110.4.17.0/24110.4.17.0 – 110.4.17.255256
110.4.18.0/24110.4.18.0 – 110.4.18.255256
110.4.19.0/24110.4.19.0 – 110.4.19.255256
110.4.20.0/24110.4.20.0 – 110.4.20.255256
110.4.21.0/24110.4.21.0 – 110.4.21.255256
110.4.22.0/24110.4.22.0 – 110.4.22.255256
110.4.25.0/24110.4.25.0 – 110.4.25.255256
203.0.0.0/8 · 7 prefixes · 4,096 addresses
PrefixRangeAddresses
203.210.0.0/20203.210.0.0 – 203.210.15.2554,096
203.210.2.0/24203.210.2.0 – 203.210.2.255256
203.210.3.0/24203.210.3.0 – 203.210.3.255256
203.210.4.0/24203.210.4.0 – 203.210.4.255256
203.210.6.0/24203.210.6.0 – 203.210.6.255256
203.210.7.0/24203.210.7.0 – 203.210.7.255256
203.210.8.0/24203.210.8.0 – 203.210.8.255256

BGP Neighbours

8 unique neighbours · 4 upstream/peer · 1 downstream · 3 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 (4)

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
AS4760HKTIMS-AP - HKT Limited1,01427,9014,819
AS4635HKIX-RS1 - Hong Kong Internet Exchange--Route Server 1752,4730
AS8359MTS MTS PJSC103020
AS9930TTNET-MY - TIME dotCom Berhad No. 14, Jalan Majistret U1/26 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, Malaysia4930

Downstream side (1)

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

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS9444HKT-AS-AP - Hong Kong Telecommunications (HKT) Limited3229,2200

Collector-only (3)

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
AS24482SGGS-AS-AP - SG.GS41,0230
AS36236NETACTUATE - NetActuate, Inc4930
AS49544i3Dnet i3D.net B.V4930

Raw RDAP Response

{
  "rdapConformance": [
    "history_version_0",
    "nro_rdap_profile_0",
    "nro_rdap_profile_asn_hierarchical_0",
    "cidr0",
    "rdap_level_0"
  ],
  "notices": [
    {
      "title": "Source",
      "description": [
        "Objects returned came from source",
        "APNIC"
      ]
    },
    {
      "title": "Terms and Conditions",
      "description": [
        "This is the APNIC WHOIS Database query service. The objects are in RDAP format."
      ],
      "links": [
        {
          "value": "https://rdap.apnic.net/autnum/38819",
          "rel": "terms-of-service",
          "href": "http://www.apnic.net/db/dbcopyright.html",
          "type": "text/html"
        }
      ]
    },
    {
      "title": "Whois Inaccuracy Reporting",
      "description": [
        "If you see inaccuracies in the results, please visit: "
      ],
      "links": [
        {
          "value": "https://rdap.apnic.net/autnum/38819",
          "rel": "inaccuracy-report",
          "href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
          "type": "text/html"
        }
      ]
    }
  ],
  "country": "HK",
  "name": "HKCSL-AS-AP",
  "status": [
    "active"
  ],
  "events": [
    {
      "eventAction": "registration",
      "eventDate": "2008-09-04T06:40:43Z"
    },
    {
      "eventAction": "last changed",
      "eventDate": "2020-07-07T04:57:11Z"
    }
  ],
  "links": [
    {
      "value": "https://rdap.apnic.net/autnum/38819",
      "rel": "self",
      "href": "https://rdap.apnic.net/autnum/38819",
      "type": "application/rdap+json"
    }
  ],
  "remarks": [
    {
      "description": [
        "HKCSL GPRS NETWORK"
      ],
      "title": "description"
    }
  ],
  "entities": [
    {
      "roles": [
        "administrative"
      ],
      "events": [
        {
          "eventAction": "registration",
          "eventDate": "2012-07-05T10:09:52Z"
        },
        {
          "eventAction": "last changed",
          "eventDate": "2016-08-04T02:55:19Z"
        }
      ],
      "links": [
        {
          "value": "https://rdap.apnic.net/autnum/38819",
          "rel": "self",
          "href": "https://rdap.apnic.net/entity/IO35-AP",
          "type": "application/rdap+json"
        }
      ],
      "remarks": [
        {
          "description": [
            "Please send spam and abuse reports to [email protected]",
            "with providing detail information and times in HKT.",
            "The phone number is only for emergency contact"
          ],
          "title": "remarks"
        }
      ],
      "handle": "IO35-AP",
      "objectClassName": "entity",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "REDACTED"
          ],
          [
            "kind",
            {},
            "text",
            "individual"
          ]
        ]
      ]
    },
    {
      "roles": [
        "abuse"
      ],
      "events": [
        {
          "eventAction": "registration",
          "eventDate": "2011-03-18T04:48:46Z"
        },
        {
          "eventAction": "last changed",
          "eventDate": "2026-05-12T13:50:29Z"
        }
      ],
      "links": [
        {
          "value": "https://rdap.apnic.net/autnum/38819",
          "rel": "self",
          "href": "https://rdap.apnic.net/entity/IRT-HKCSL-HK",
          "type": "application/rdap+json"
        }
      ],
      "remarks": [
        {
          "description": [
            "[email protected] was validated on 2026-05-12"
          ],
          "title": "remarks"
        }
      ],
      "handle": "IRT-HKCSL-HK",
      "objectClassName": "entity",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "IRT-HKCSL-HK"
          ],
          [
            "kind",
            {},
            "text",
            "group"
          ],
          [
            "adr",
            {
              "label": "4/F, Lai Chi Kok Engineering II\n4 Yuet Lun Street,\nLai Chi Kok\nHong Kong"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "email",
            {},
            "text",
            "[email protected]"
          ],
          [
            "email",
            {
              "pref": "1"
            },
            "text",
            "[email protected]"
          ]
        ]
      ]
    },
    {
      "roles": [
        "technical"
      ],
      "events": [
        {
          "eventAction": "registration",
          "eventDate": "2012-07-05T10:22:50Z"
        },
        {
          "eventAction": "last changed",
          "eventDate": "2024-08-09T08:21:23Z"
        }
      ],
      "links": [
        {
          "value": "https://rdap.apnic.net/autnum/38819",
          "rel": "self",
          "href": "https://rdap.apnic.net/entity/IP90-AP",
          "type": "application/rdap+json"
        }
      ],
      "remarks": [
        {
          "description": [
            "Please send spam and abuse reports to [email protected]",
            "with providing detail information and times in HKT",
            "The phone number is only for emergency contact"
          ],
          "title": "remarks"
        }
      ],
      "handle": "IP90-AP",
      "objectClassName": "entity",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "REDACTED"
          ],
          [
            "kind",
            {},
            "text",
            "individual"
          ]
        ]
      ]
    },
    {
      "roles": [
        "registrant"
      ],
      "events": [
        {
          "eventAction": "registration",
          "eventDate": "2017-08-08T23:24:51Z"
        },
        {
          "eventAction": "last changed",
          "eventDate": "2023-09-05T02:14:49Z"
        }
      ],
      "links": [
        {
          "value": "https://rdap.apnic.net/autnum/38819",
          "rel": "self",
          "href": "https://rdap.apnic.net/entity/ORG-CL2-AP",
          "type": "application/rdap+json"
        }
      ],
      "handle": "ORG-CL2-AP",
      "objectClassName": "entity",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "CSL Limited"
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ],
          [
            "adr",
            {
              "label": "3rd Floor\nLai Chi Kok Engineering Center II\n4 Yuet Lun Street"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "tel",
            {
              "type": "voice"
            },
            "text",
            "+852-2883-4324"
          ],
          [
            "tel",
            {
              "type": "fax"
            },
            "text",
            "+852-2962-5504"
          ],
          [
            "email",
            {},
            "text",
            "[email protected]"
          ]
        ]
      ]
    }
  ],
  "handle": "AS38819",
  "startAutnum": 38819,
  "endAutnum": 38819,
  "objectClassName": "autnum",
  "port43": "whois.apnic.net"
}

Contact details of private individuals are redacted.