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125.223.144.0

IPv4 APNIC CN AS4538
ASN
AS4538
ERX-CERNET-BKB - China Education and Research Network Center, CN
Organization
SYR-CERNET
Location
Shenyang
Liaoning, China (CN)
Hostname
—

Geolocation

China (CN)
Country
China (CN)
Region
Liaoning
City
Shenyang
Continent
Asia
Coordinates
41.8048, 123.433 View on map ↗

Network Information

IP Range 125.222.0.0 – 125.223.255.255 CIDR 125.222.0.0/15 Network Name SYR-CERNET Handle 125.222.0.0 - 125.223.255.255 Type ALLOCATED PORTABLE Country China (CN) Registry APNIC Description China Education and Research Network, Shenyang Regional Network Registered On Sep 04, 2008 Last Updated Sep 03, 2020 Status
active

ASN & Routing

Origin AS AS4538 AS Name ERX-CERNET-BKB - China Education and Research Network Center, CN Announced Prefix 125.216.0.0/13 AS Registry APNIC Prefix Country China (CN) Allocated 2005-10-13 RPKI Origin Not found (no ROA covers this prefix)

Reverse DNS

No PTR record is published for this address.

Abuse Contact

Email [email protected] Phone +86-10-62784301

Raw RDAP Response

{
  "rdapConformance": [
    "history_version_0",
    "nro_rdap_profile_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/ip/125.223.144.0",
          "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/ip/125.223.144.0",
          "rel": "inaccuracy-report",
          "href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
          "type": "text/html"
        }
      ]
    }
  ],
  "country": "CN",
  "name": "SYR-CERNET",
  "status": [
    "active"
  ],
  "events": [
    {
      "eventAction": "registration",
      "eventDate": "2008-09-04T07:03:28Z"
    },
    {
      "eventAction": "last changed",
      "eventDate": "2020-09-03T09:16:21Z"
    }
  ],
  "links": [
    {
      "value": "https://rdap.apnic.net/ip/125.223.144.0",
      "rel": "self",
      "href": "https://rdap.apnic.net/ip/125.222.0.0/15",
      "type": "application/rdap+json"
    }
  ],
  "remarks": [
    {
      "description": [
        "China Education and Research Network",
        "Shenyang Regional Network"
      ],
      "title": "description"
    },
    {
      "description": [
        "origin AS4538",
        "confederation",
        "--------------------------------------------------------",
        "To report network abuse, please contact mnt-irt",
        "For troubleshooting, please contact tech-c and admin-c",
        "Report invalid contact via www.apnic.net/invalidcontact",
        "--------------------------------------------------------"
      ],
      "title": "remarks"
    }
  ],
  "entities": [
    {
      "roles": [
        "technical",
        "administrative"
      ],
      "events": [
        {
          "eventAction": "registration",
          "eventDate": "2008-09-04T07:54:16Z"
        },
        {
          "eventAction": "last changed",
          "eventDate": "2020-09-03T09:14:12Z"
        }
      ],
      "links": [
        {
          "value": "https://rdap.apnic.net/ip/125.223.144.0",
          "rel": "self",
          "href": "https://rdap.apnic.net/entity/CER-AP",
          "type": "application/rdap+json"
        }
      ],
      "remarks": [
        {
          "description": [
            "[email protected]"
          ],
          "title": "remarks"
        }
      ],
      "handle": "CER-AP",
      "objectClassName": "entity",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "CERNET Helpdesk"
          ],
          [
            "kind",
            {},
            "text",
            "group"
          ],
          [
            "adr",
            {
              "label": "CERNET Center\nBeijing 100084, China"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "tel",
            {
              "type": "voice"
            },
            "text",
            "+86-10-6278-4049"
          ],
          [
            "tel",
            {
              "type": "fax"
            },
            "text",
            "+86-10-6278-5933"
          ],
          [
            "email",
            {},
            "text",
            "[email protected]"
          ]
        ]
      ]
    },
    {
      "roles": [
        "abuse"
      ],
      "events": [
        {
          "eventAction": "registration",
          "eventDate": "2010-11-26T03:14:01Z"
        },
        {
          "eventAction": "last changed",
          "eventDate": "2026-09-10T07:51:56Z"
        }
      ],
      "links": [
        {
          "value": "https://rdap.apnic.net/ip/125.223.144.0",
          "rel": "self",
          "href": "https://rdap.apnic.net/entity/IRT-CERNET-AP",
          "type": "application/rdap+json"
        }
      ],
      "remarks": [
        {
          "description": [
            "timezone GMT+8",
            "[email protected] was validated on 2026-09-10"
          ],
          "title": "remarks"
        }
      ],
      "handle": "IRT-CERNET-AP",
      "objectClassName": "entity",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "IRT-CERNET-AP"
          ],
          [
            "kind",
            {},
            "text",
            "group"
          ],
          [
            "adr",
            {
              "label": "Network Center,\nFIT-3-220, Tsinghua Univ\nBeijing 100084, China"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "tel",
            {
              "type": "voice"
            },
            "text",
            "+86-10-62784301"
          ],
          [
            "tel",
            {
              "type": "fax"
            },
            "text",
            "+86-10-62785933"
          ],
          [
            "email",
            {},
            "text",
            "[email protected]"
          ],
          [
            "email",
            {
              "pref": "1"
            },
            "text",
            "[email protected]"
          ]
        ]
      ]
    }
  ],
  "handle": "125.222.0.0 - 125.223.255.255",
  "type": "ALLOCATED PORTABLE",
  "startAddress": "125.222.0.0",
  "endAddress": "125.223.255.255",
  "objectClassName": "ip network",
  "ipVersion": "v4",
  "cidr0_cidrs": [
    {
      "v4prefix": "125.222.0.0",
      "length": 15
    }
  ],
  "port43": "whois.apnic.net"
}

Contact details of private individuals are redacted.