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AS7539

National Center for High-performance Computing

APNIC TW active Announced
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Organization
National Center for High-performance Computing
TWAREN-TW
Registered
Mar 22, 1997
29 years ago
IPv4 Prefixes
8
84,992 addresses
IPv6 Prefixes
1
65,536 × /48
BGP Neighbours
24
10 upstream/peer · 14 downstream · 3 collector-only

Registration

AS Number AS7539 AS Name TWAREN-TW Country Taiwan (TW) Registry APNIC Allocated Mar 22, 1997 Record Created Sep 04, 2008 Last Updated Nov 06, 2025 Status
active
WHOIS Server whois.apnic.net AS Description TWAREN-TW - National Center for High-performance Computing, TW Remarks National Center for High-performance Computing, HsinChu Taiwan 300 Abuse Email [email protected]

IPv4 Prefixes

8 prefixes · 84,992 addresses · 6 top-level Routing data as of 2026-10-07 08:00 UTC

PrefixRangeAddresses
103.124.72.0/22103.124.72.0 – 103.124.75.2551,024
140.110.0.0/16140.110.0.0 – 140.110.255.25565,536
140.110.200.0/21140.110.200.0 – 140.110.207.2552,048
140.110.215.0/24140.110.215.0 – 140.110.215.255256
203.145.200.0/21203.145.200.0 – 203.145.207.2552,048
203.145.208.0/20203.145.208.0 – 203.145.223.2554,096
211.73.64.0/19211.73.64.0 – 211.73.95.2558,192
211.79.48.0/20211.79.48.0 – 211.79.63.2554,096

IPv6 Prefixes

1 prefix · 65,536 × /48 Routing data as of 2026-10-07 08:00 UTC

PrefixAddresses
2001:e10::/32296

BGP Neighbours

24 unique neighbours · 10 upstream/peer · 14 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 (10)

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
AS6461ZAYO-6461 - Zayo Bandwidth7622,63265
AS9924TFN-TW - Taiwan Fixed Network, Telco and Network Service Provider.5492,01140
AS6939HURRICANE - Hurricane Electric LLC248237257
AS11537INTERNET2-RESEARCH-EDU - Internet24412711
AS9264ASNet - Academia Sinica359140
AS293ESNET - ESnet11492
AS7575AARNET-AS-AP - Australian Academic and Research Network (AARNet)6160
AS7713telkomnet-as-ap - PT Telekomunikasi Indonesia390
AS10764STARTAP - University of Illinois250
AS18041TWDS-AS-TW - Taiwan Digital Streaming Co.101

Downstream side (14)

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

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS1659ERX-TANET-ASN1 - Taiwan Academic Network (TANet) Information Center2721,5080
AS18426STPI-AS-TW - National Applied Research Laboratories2643370
AS18183NCREE - National Center for Research on Earthquake Engineering2351,1466
AS18181NHRINet - National Health Research Institutes911370
AS18422ITRINET-AS-TW - Industrial Technology Research Institute10200
AS17716NTU-TW - National Taiwan University7100
AS18420NCU-TW - National Central University770
AS17717MOECC-IPV6 - Ministry of Education Computer Center Taipei, Taiwan61311
AS18047NTHU-TW - National Tsing-Hua University6120
AS6939HURRICANE - Hurricane Electric LLC404
AS17408ABOVE-AS-AP - AboveNet Communications Taiwan404
AS17711NDHU-TW - National Dong Hwa University330
AS9264ASNet - Academia Sinica241
AS38254ITLAB-AS-AP - Internet Technology Laboratory120

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
AS38254ITLAB-AS-AP - Internet Technology Laboratory5503
AS24482SGGS-AS-AP - SG.GS4281
AS134823SDCL-AS-AP - Sky Digital Co., Ltd.4100

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/7539",
          "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/7539",
          "rel": "inaccuracy-report",
          "href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
          "type": "text/html"
        }
      ]
    }
  ],
  "country": "TW",
  "name": "TWAREN-TW",
  "status": [
    "active"
  ],
  "events": [
    {
      "eventAction": "registration",
      "eventDate": "2008-09-04T06:40:30Z"
    },
    {
      "eventAction": "last changed",
      "eventDate": "2025-11-06T09:06:40Z"
    }
  ],
  "links": [
    {
      "value": "https://rdap.apnic.net/autnum/7539",
      "rel": "self",
      "href": "https://rdap.apnic.net/autnum/7539",
      "type": "application/rdap+json"
    }
  ],
  "remarks": [
    {
      "description": [
        "National Center for High-performance Computing",
        "HsinChu Taiwan 300"
      ],
      "title": "description"
    }
  ],
  "entities": [
    {
      "roles": [
        "abuse"
      ],
      "events": [
        {
          "eventAction": "registration",
          "eventDate": "2023-11-30T03:52:46Z"
        },
        {
          "eventAction": "last changed",
          "eventDate": "2026-07-16T02:54:39Z"
        }
      ],
      "links": [
        {
          "value": "https://rdap.apnic.net/autnum/7539",
          "rel": "self",
          "href": "https://rdap.apnic.net/entity/IRT-NCHC-TW",
          "type": "application/rdap+json"
        }
      ],
      "handle": "IRT-NCHC-TW",
      "objectClassName": "entity",
      "vcardArray": [
        "vcard",
        [
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            "version",
            {},
            "text",
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          ],
          [
            "fn",
            {},
            "text",
            "IRT-NCHC-TW"
          ],
          [
            "kind",
            {},
            "text",
            "group"
          ],
          [
            "adr",
            {
              "label": "National Applied Research Laboratories National Center for High-performance Computing\nNo. 7, R&D 6th Rd., Hsinchu Science Park, Hsinchu City,\nTaiwan, R.O.C. 30076"
            },
            "text",
            [
              "",
              "",
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            ]
          ],
          [
            "email",
            {},
            "text",
            "[email protected]"
          ],
          [
            "email",
            {
              "pref": "1"
            },
            "text",
            "[email protected]"
          ]
        ]
      ]
    },
    {
      "roles": [
        "technical",
        "administrative"
      ],
      "events": [
        {
          "eventAction": "registration",
          "eventDate": "2008-09-04T07:54:16Z"
        },
        {
          "eventAction": "last changed",
          "eventDate": "2010-11-19T07:03:41Z"
        }
      ],
      "links": [
        {
          "value": "https://rdap.apnic.net/autnum/7539",
          "rel": "self",
          "href": "https://rdap.apnic.net/entity/nNA6-AP",
          "type": "application/rdap+json"
        }
      ],
      "remarks": [
        {
          "description": [
            "The role object should be used when making",
            "changes to admin-c or tech-c handle."
          ],
          "title": "remarks"
        }
      ],
      "handle": "nNA6-AP",
      "objectClassName": "entity",
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "nchc Network Administrator"
          ],
          [
            "kind",
            {},
            "text",
            "group"
          ],
          [
            "adr",
            {
              "label": "No.7, R Road VI Hsinchu Science-Based Industrial Park\nHsinchu, Taiwan , R.O.C"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "tel",
            {
              "type": "voice"
            },
            "text",
            "+886-6-505-0940"
          ],
          [
            "tel",
            {
              "type": "fax"
            },
            "text",
            "+886-6-505-0945"
          ],
          [
            "email",
            {},
            "text",
            "[email protected]"
          ]
        ]
      ]
    }
  ],
  "handle": "AS7539",
  "startAutnum": 7539,
  "endAutnum": 7539,
  "objectClassName": "autnum",
  "port43": "whois.apnic.net"
}

Contact details of private individuals are redacted.