Organization
PTO-KHCN-VN
Location
Viet Tri
Phu Tho, Vietnam (VN)
Hostname
dynamic.vdc.vn
Geolocation
Vietnam (VN) Vietnam
- Country
- Vietnam (VN)
- Region
- Phu Tho
- City
- Viet Tri
- Continent
- Asia
- Coordinates
- 21.357, 105.353 View on map ↗
Network Information
IP Range 103.228.20.0 – 103.228.23.255 CIDR 103.228.20.0/22 Network Name PTO-KHCN-VN Handle 103.228.20.0 - 103.228.23.255 Type ALLOCATED PORTABLE Country Vietnam (VN) Registry APNIC Description Department of Science and Technology of Phu Tho province, 392 Nguyen Tat Thanh Street, Viet Tri Ward, Phu Tho Registered On Mar 20, 2014 Last Updated Oct 29, 2025 Status
active
ASN & Routing
Origin AS AS131401 AS Name SOTTTTVP-VN - Department of Science and Technology of Vinh Phuc province, VN Announced Prefix 103.228.20.0/22 AS Registry APNIC Prefix Country Vietnam (VN) Allocated 2014-03-20 RPKI Origin Valid (covered by a matching ROA)
Reverse DNS
PTR Record
Abuse Contact
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/103.228.20.0",
"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/103.228.20.0",
"rel": "inaccuracy-report",
"href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
"type": "text/html"
}
]
}
],
"country": "VN",
"name": "PTO-KHCN-VN",
"status": [
"active"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2014-03-20T08:17:08Z"
},
{
"eventAction": "last changed",
"eventDate": "2025-10-29T08:32:12Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/ip/103.228.20.0",
"rel": "self",
"href": "https://rdap.apnic.net/ip/103.228.20.0/22",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"Department of Science and Technology of Phu Tho province",
"392 Nguyen Tat Thanh Street, Viet Tri Ward, Phu Tho"
],
"title": "description"
},
{
"description": [
"send spam and abuse report to [email protected]"
],
"title": "remarks"
}
],
"entities": [
{
"roles": [
"technical"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2025-10-29T08:28:14Z"
},
{
"eventAction": "last changed",
"eventDate": "2025-10-29T08:28:14Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/ip/103.228.20.0",
"rel": "self",
"href": "https://rdap.apnic.net/entity/TDL11-AP",
"type": "application/rdap+json"
}
],
"handle": "TDL11-AP",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
]
},
{
"roles": [
"administrative"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2025-10-29T08:27:27Z"
},
{
"eventAction": "last changed",
"eventDate": "2025-10-29T08:27:27Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/ip/103.228.20.0",
"rel": "self",
"href": "https://rdap.apnic.net/entity/VMH4-AP",
"type": "application/rdap+json"
}
],
"handle": "VMH4-AP",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"REDACTED"
],
[
"kind",
{},
"text",
"individual"
]
]
]
},
{
"roles": [
"abuse"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2010-11-07T23:14:27Z"
},
{
"eventAction": "last changed",
"eventDate": "2026-04-21T02:07:47Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/ip/103.228.20.0",
"rel": "self",
"href": "https://rdap.apnic.net/entity/IRT-VNNIC-AP",
"type": "application/rdap+json"
}
],
"handle": "IRT-VNNIC-AP",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"IRT-VNNIC-AP"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "Ha Noi, VietNam"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+84-24-35564944"
],
[
"tel",
{
"type": "fax"
},
"text",
"+84-24-37821462"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{
"pref": "1"
},
"text",
"[email protected]"
]
]
]
}
],
"handle": "103.228.20.0 - 103.228.23.255",
"type": "ALLOCATED PORTABLE",
"startAddress": "103.228.20.0",
"endAddress": "103.228.23.255",
"objectClassName": "ip network",
"ipVersion": "v4",
"cidr0_cidrs": [
{
"v4prefix": "103.228.20.0",
"length": 22
}
],
"port43": "whois.apnic.net"
} Contact details of private individuals are redacted.