Whois & RDAP Lookup
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RDAPIP Range43.254.16.0 - 43.254.19.255
Handle43.254.16.0 - 43.254.19.255
NameYUANJHEN-NET
TypeALLOCATED PORTABLE
CountryTW
Registered2014-07-22 01:54 UTC
Updated2023-11-30 04:18 UTC
Admin ContactYUANJHEN NOC
Email[email protected]
Phone+886-2-7753-7313
Address12F., No.866-11, Zhongzheng Rd., Zhonghe Dist., New Taipei City, 235, R.O.C
Tech ContactYUANJHEN NOC
Email[email protected]
Phone+886-2-7753-7313
Address12F., No.866-11, Zhongzheng Rd., Zhonghe Dist., New Taipei City, 235, R.O.C
Abuse Contact[email protected]
Statusactive
Registry RDAPhttps://rdap.apnic.net
Raw WHOIS response
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to '43.254.16.0 - 43.254.19.255'
% Abuse contact for '43.254.16.0 - 43.254.19.255' is '[email protected]'
inetnum: 43.254.16.0 - 43.254.19.255
netname: YUANJHEN-NET
descr: Yuan-Jhen Info., Co., Ltd
descr: 12F., No.866-7, Zhongzheng Rd., Zhonghe Dist.,
descr: New Taipei City, 235
country: TW
admin-c: YN371-AP
tech-c: YN371-AP
abuse-c: AT939-AP
status: ALLOCATED PORTABLE
mnt-by: MAINT-TW-TWNIC
mnt-lower: MAINT-TW-TWNIC
mnt-irt: IRT-YUANJHEN-TW
last-modified: 2023-11-30T04:18:54Z
source: APNIC
irt: IRT-YUANJHEN-TW
address: Yuan-Jhen Info., Co., Ltd
address: 12F., No.866-7, Zhongzheng Rd., Zhonghe Dist.,
address: New Taipei City, 235
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: YC2393-AP
tech-c: YC2393-AP
auth: # Filtered
mnt-by: MAINT-TW-TWNIC
last-modified: 2026-07-16T02:54:46Z
source: APNIC
role: ABUSE TWNICAP
country: ZZ
address: 3F., No. 123, Sec. 4, Bade Rd., Songshan Dist., Taipei 105, Taiwan
phone: +000000000
e-mail: [email protected]
admin-c: TWA2-AP
tech-c: TWA2-AP
nic-hdl: AT939-AP
remarks: Generated from irt object IRT-TWNIC-AP
remarks: [email protected] was validated on 2025-05-23
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2025-05-23T00:02:10Z
source: APNIC
person: YUANJHEN NOC
address: 12F., No.866-11, Zhongzheng Rd., Zhonghe Dist., New Taipei City, 235, R.O.C
country: TW
phone: +886-2-7753-7313
e-mail: [email protected]
nic-hdl: YN371-AP
mnt-by: MAINT-TW-TWNIC
last-modified: 2023-02-10T08:13:55Z
source: APNIC
% Information related to '43.254.16.0/24AS131149'
route: 43.254.16.0/24
origin: AS131149
descr: Taiwan Network Information Center
3F., No. 123, Sec. 4, Bade Rd., Songshan Dist.
mnt-by: MAINT-TW-TWNIC
last-modified: 2025-04-01T07:37:48Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-JP1)
% Query time: 312 msec
% WHEN: Fri Aug 14 09:00:23 UTC 2026Raw RDAP JSON (registry) https://rdap.apnic.net
{
"cidr0_cidrs": [
{
"length": 22,
"v4prefix": "43.254.16.0"
}
],
"country": "TW",
"endAddress": "43.254.19.255",
"entities": [
{
"events": [
{
"eventAction": "registration",
"eventDate": "2023-11-30T04:18:52Z"
},
{
"eventAction": "last changed",
"eventDate": "2026-07-16T02:54:46Z"
}
],
"handle": "IRT-YUANJHEN-TW",
"links": [
{
"href": "https://rdap.apnic.net/entity/IRT-YUANJHEN-TW",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/43.254.16.0/22"
}
],
"objectClassName": "entity",
"roles": [
"abuse"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"IRT-YUANJHEN-TW"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "Yuan-Jhen Info., Co., Ltd\n12F., No.866-7, Zhongzheng Rd., Zhonghe Dist.,\nNew Taipei City, 235"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{
"pref": "1"
},
"text",
"[email protected]"
]
]
]
},
{
"events": [
{
"eventAction": "registration",
"eventDate": "2023-02-10T08:13:55Z"
},
{
"eventAction": "last changed",
"eventDate": "2023-02-10T08:13:55Z"
}
],
"handle": "YN371-AP",
"links": [
{
"href": "https://rdap.apnic.net/entity/YN371-AP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/43.254.16.0/22"
}
],
"objectClassName": "entity",
"roles": [
"technical",
"administrative"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"YUANJHEN NOC"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "12F., No.866-11, Zhongzheng Rd., Zhonghe Dist., New Taipei City, 235, R.O.C"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+886-2-7753-7313"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
}
],
"events": [
{
"eventAction": "registration",
"eventDate": "2014-07-22T01:54:58Z"
},
{
"eventAction": "last changed",
"eventDate": "2023-11-30T04:18:54Z"
}
],
"handle": "43.254.16.0 - 43.254.19.255",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.apnic.net/ip/43.254.16.0/22",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/43.254.16.0/22"
}
],
"name": "YUANJHEN-NET",
"notices": [
{
"description": [
"Objects returned came from source",
"APNIC"
],
"title": "Source"
},
{
"description": [
"This is the APNIC WHOIS Database query service. The objects are in RDAP format."
],
"links": [
{
"href": "http://www.apnic.net/db/dbcopyright.html",
"rel": "terms-of-service",
"type": "text/html",
"value": "https://rdap.apnic.net/ip/43.254.16.0/22"
}
],
"title": "Terms and Conditions"
},
{
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
{
"href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
"rel": "inaccuracy-report",
"type": "text/html",
"value": "https://rdap.apnic.net/ip/43.254.16.0/22"
}
],
"title": "Whois Inaccuracy Reporting"
}
],
"objectClassName": "ip network",
"port43": "whois.apnic.net",
"rdapConformance": [
"history_version_0",
"nro_rdap_profile_0",
"cidr0",
"rdap_level_0"
],
"remarks": [
{
"description": [
"Yuan-Jhen Info., Co., Ltd",
"12F., No.866-7, Zhongzheng Rd., Zhonghe Dist.,",
"New Taipei City, 235"
],
"title": "description"
}
],
"startAddress": "43.254.16.0",
"status": [
"active"
],
"type": "ALLOCATED PORTABLE"
}Frequently asked questions
What is WHOIS?
WHOIS is a public directory that answers "who is responsible for this?" for domains, IP ranges and ASNs. It lists registration dates, the registrar, nameservers and contacts.
What is RDAP, and how does it differ?
RDAP is the modern replacement for WHOIS. It returns the same records in a structured, consistent format. We query RDAP first and fall back to classic WHOIS text when a registry has not adopted it yet.
What is the difference between a registrar and a registrant?
The registrar is the company you register and manage a domain through, such as xTom or GoDaddy. The registrant is the person or organization that actually holds the domain.
What are nameservers?
Nameservers answer DNS questions for a domain and decide which IP addresses the name resolves to. They also show which DNS provider the domain uses.
What is DNSSEC?
DNSSEC adds cryptographic signatures to DNS answers so they cannot be quietly altered in transit. "Signed" means the domain has it enabled, "unsigned" means it does not.
Why is the contact information redacted?
Privacy laws such as GDPR require registrars to hide most personal details in public records. The abuse contact is usually still shown, so a domain or network can be reported when something goes wrong.