143.89.0.3
Education
Data retrieved at
Network
ASN
IP Range
Company
Hong Kong University of Science and Technology
Network
USTHK-NET
Using networksdb.io for network lookups.
Hostname
Not available.
Type
Education
Handle
143.89.0.0 - 143.89.255.255
Registered
2008-09-04
Last Changed
2020-05-20
View raw RDAP
{
"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/143.89.0.3",
"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/143.89.0.3",
"rel": "inaccuracy-report",
"href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
"type": "text/html"
}
]
}
],
"country": "HK",
"name": "USTHK-NET",
"status": [
"active"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2008-09-04T06:53:32Z"
},
{
"eventAction": "last changed",
"eventDate": "2020-05-20T00:59:33Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/ip/143.89.0.3",
"rel": "self",
"href": "https://rdap.apnic.net/ip/143.89.0.0/16",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"Hong Kong University of Science and Technology"
],
"title": "description"
},
{
"description": [
"----------------------------",
"Send abuse reports to",
"[email protected]",
"----------------------------"
],
"title": "remarks"
}
],
"entities": [
{
"roles": [
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],
"events": [
{
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"eventDate": "2008-09-04T07:29:21Z"
},
{
"eventAction": "last changed",
"eventDate": "2008-09-04T07:29:21Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/ip/143.89.0.3",
"rel": "self",
"href": "https://rdap.apnic.net/entity/CC47-AP",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"----------",
"imported from ARIN object:",
"",
"poc-handle: CC293-ARIN",
"is-role: N",
"last-name: Choy",
"first-name: Charles",
"street: Information Technology Services Center Clear Water Bay",
"city: Kowloon",
"country: HK",
"mailbox: [email protected]",
"bus-phone: (852) 2358 6208",
"reg-date: 1970-01-01",
"changed: [email protected] 20020925",
"source: ARIN",
"",
"----------"
],
"title": "remarks"
}
],
"handle": "CC47-AP",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Charles Choy"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "Information Technology Services Center Hong Kong University of Science & Technology Clear Water Bay Kowloon Hong Kong"
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"text",
[
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],
[
"tel",
{
"type": "voice"
},
"text",
"+852 2358 6208"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
},
{
"roles": [
"technical"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2008-09-04T07:29:21Z"
},
{
"eventAction": "last changed",
"eventDate": "2008-09-04T07:29:21Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/ip/143.89.0.3",
"rel": "self",
"href": "https://rdap.apnic.net/entity/KT29-AP",
"type": "application/rdap+json"
}
],
"handle": "KT29-AP",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"K K Tam"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "Information Technology Services Center\nHong Kong University of Science & Technology\nClear Water Bay\nKowloon\nHong Kong"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+852 2358 6246"
],
[
"tel",
{
"type": "fax"
},
"text",
"+852 2358 0967"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
},
{
"roles": [
"registrant"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2017-08-08T23:25:09Z"
},
{
"eventAction": "last changed",
"eventDate": "2023-09-05T02:15:44Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/ip/143.89.0.3",
"rel": "self",
"href": "https://rdap.apnic.net/entity/ORG-HKUO1-AP",
"type": "application/rdap+json"
}
],
"handle": "ORG-HKUO1-AP",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
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{},
"text",
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[
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{},
"text",
"Hong Kong University of Science and Technology"
],
[
"kind",
{},
"text",
"org"
],
[
"adr",
{
"label": "Information Technology Services Center\nClear Water Bay"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+852-2358-6205"
],
[
"tel",
{
"type": "fax"
},
"text",
"+852-2358-0967"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
},
{
"roles": [
"abuse"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2014-05-12T01:58:47Z"
},
{
"eventAction": "last changed",
"eventDate": "2026-07-15T09:17:18Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/ip/143.89.0.3",
"rel": "self",
"href": "https://rdap.apnic.net/entity/IRT-HKUNISCITECH-NON-HK",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"[email protected] was validated on 2026-07-15"
],
"title": "remarks"
}
],
"handle": "IRT-HKUNISCITECH-NON-HK",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"IRT-HKUNISCITECH-NON-HK"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "Information Technology Services Center\nHong Kong University of Science & Technology\nClear Water Bay\nKowloon"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{
"pref": "1"
},
"text",
"[email protected]"
]
]
]
}
],
"handle": "143.89.0.0 - 143.89.255.255",
"type": "ALLOCATED PORTABLE",
"startAddress": "143.89.0.0",
"endAddress": "143.89.255.255",
"objectClassName": "ip network",
"ipVersion": "v4",
"cidr0_cidrs": [
{
"v4prefix": "143.89.0.0",
"length": 16
}
],
"port43": "whois.apnic.net"
}
Security
No security threats detected for this IP.
VPN
Proxy
Tor
Hosting
Residential Proxy
Bogon
Abuser
Crawler
RPKI
RPKI Origin Validation
RPKI verifies that an IP prefix is legitimately announced by the authorized Autonomous System (ASN) using Route Origin Authorizations (ROAs).
Unknown.
No valid ROA was found for this prefix.
UNKNOWN
Validated Prefix
143.89.0.0/16
Authorized ASN
Not available.
Abuse Contacts
IP Geolocation
Country
Hong Kong
Time Zone
Asia/Hong_Kong
Coordinates
22.2578, 114.1657
Continent
Asia
European Union
No.
Phone prefix
+852
Currency
Hong Kong Dollar (HKD $)