AS7539
National Center for High-performance Computing
Registration
IPv4 Prefixes
8 prefixes · 84,992 addresses · 6 top-level Routing data as of 2026-10-07 08:00 UTC
| Prefix | Range | Addresses |
|---|---|---|
| 103.124.72.0/22 | 103.124.72.0 – 103.124.75.255 | 1,024 |
| 140.110.0.0/16 | 140.110.0.0 – 140.110.255.255 | 65,536 |
| 140.110.200.0/21 | 140.110.200.0 – 140.110.207.255 | 2,048 |
| 140.110.215.0/24 | 140.110.215.0 – 140.110.215.255 | 256 |
| 203.145.200.0/21 | 203.145.200.0 – 203.145.207.255 | 2,048 |
| 203.145.208.0/20 | 203.145.208.0 – 203.145.223.255 | 4,096 |
| 211.73.64.0/19 | 211.73.64.0 – 211.73.95.255 | 8,192 |
| 211.79.48.0/20 | 211.79.48.0 – 211.79.63.255 | 4,096 |
IPv6 Prefixes
1 prefix · 65,536 × /48 Routing data as of 2026-10-07 08:00 UTC
| Prefix | Addresses |
|---|---|
| 2001:e10:: | 296 |
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. Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers. Networks seen to the right of this AS in BGP paths — networks whose routes it carries, typically its customers (downstreams). 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. Upstream & peer side (10)
AS Name AS paths IPv4 sightings IPv6 sightings AS6461 ZAYO-6461 - Zayo Bandwidth 762 2,632 65 AS9924 TFN-TW - Taiwan Fixed Network, Telco and Network Service Provider. 549 2,011 40 AS6939 HURRICANE - Hurricane Electric LLC 248 237 257 AS11537 INTERNET2-RESEARCH-EDU - Internet2 44 127 11 AS9264 ASNet - Academia Sinica 35 914 0 AS293 ESNET - ESnet 11 49 2 AS7575 AARNET-AS-AP - Australian Academic and Research Network (AARNet) 6 16 0 AS7713 telkomnet-as-ap - PT Telekomunikasi Indonesia 3 9 0 AS10764 STARTAP - University of Illinois 2 5 0 AS18041 TWDS-AS-TW - Taiwan Digital Streaming Co. 1 0 1 Downstream side (14)
AS Name AS paths IPv4 sightings IPv6 sightings AS1659 ERX-TANET-ASN1 - Taiwan Academic Network (TANet) Information Center 272 1,508 0 AS18426 STPI-AS-TW - National Applied Research Laboratories 264 337 0 AS18183 NCREE - National Center for Research on Earthquake Engineering 235 1,146 6 AS18181 NHRINet - National Health Research Institutes 91 137 0 AS18422 ITRINET-AS-TW - Industrial Technology Research Institute 10 20 0 AS17716 NTU-TW - National Taiwan University 7 10 0 AS18420 NCU-TW - National Central University 7 7 0 AS17717 MOECC-IPV6 - Ministry of Education Computer Center Taipei, Taiwan 6 131 1 AS18047 NTHU-TW - National Tsing-Hua University 6 12 0 AS6939 HURRICANE - Hurricane Electric LLC 4 0 4 AS17408 ABOVE-AS-AP - AboveNet Communications Taiwan 4 0 4 AS17711 NDHU-TW - National Dong Hwa University 3 3 0 AS9264 ASNet - Academia Sinica 2 4 1 AS38254 ITLAB-AS-AP - Internet Technology Laboratory 1 2 0 Collector-only (3)
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",
[
[
"version",
{},
"text",
"4.0"
],
[
"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",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"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.