Whois & RDAP Lookup
103.133.152.0/24
RDAPRaw WHOIS response
% [whois.apnic.net] % Whois data copyright terms http://www.apnic.net/db/dbcopyright.html % Information related to '103.133.152.0 - 103.133.155.255' % Abuse contact for '103.133.152.0 - 103.133.155.255' is '[email protected]' inetnum: 103.133.152.0 - 103.133.155.255 netname: STUB-103-133-152SLASH22 descr: Transferred to the ARIN region on 2024-09-25T10:29:47Z. country: ZZ admin-c: STUB-AP tech-c: STUB-AP abuse-c: AS2444-AP status: ALLOCATED PORTABLE mnt-by: APNIC-STUB mnt-irt: IRT-STUB-AP last-modified: 2024-09-25T00:31:54Z source: APNIC irt: IRT-STUB-AP address: N/A e-mail: [email protected] abuse-mailbox: [email protected] admin-c: STUB-AP tech-c: STUB-AP remarks: IRT for stub records. remarks: We do not operate the referring network and remarks: are unable to investigate complaints of network abuse. remarks: For information about IRT, see www.apnic.net/irt auth: # Filtered mnt-by: APNIC-HM last-modified: 2025-11-18T00:33:17Z source: APNIC role: ABUSE STUBAP country: ZZ address: N/A phone: +000000000 e-mail: [email protected] admin-c: STUB-AP tech-c: STUB-AP nic-hdl: AS2444-AP remarks: Generated from irt object IRT-STUB-AP abuse-mailbox: [email protected] mnt-by: APNIC-ABUSE last-modified: 2025-11-25T00:01:50Z source: APNIC person: STUB PERSON address: N/A country: ZZ phone: +00 0000 0000 e-mail: [email protected] nic-hdl: STUB-AP remarks: No contact information for stub records. mnt-by: APNIC-HM last-modified: 2019-09-23T04:53:33Z source: APNIC % This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-JP1) % Query time: 333 msec % WHEN: Wed Aug 26 08:00:58 UTC 2026
Raw RDAP JSON (registry) https://rdap.apnic.net
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"length": 22,
"v4prefix": "103.133.152.0"
}
],
"endAddress": "103.133.155.255",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-09-24T08:25:27-04:00"
},
{
"eventAction": "registration",
"eventDate": "2024-09-24T16:47:18-04:00"
}
],
"handle": "NOC33871-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NOC33871-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/103.133.152.0/24"
},
{
"href": "https://whois.arin.net/rest/poc/NOC33871-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/103.133.152.0/24"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical",
"abuse",
"dns",
"noc",
"routing"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "131 Continental Dr,\nSuite 305\nNewark\nDE\n19713\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Network Operations Center"
],
[
"org",
{},
"text",
"Taiwan Telecom, Inc."
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-507-652-5757"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-07-31T07:21:07-04:00"
},
{
"eventAction": "registration",
"eventDate": "2024-08-05T02:04:27-04:00"
}
],
"handle": "HSIAO17-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/HSIAO17-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/103.133.152.0/24"
},
{
"href": "https://whois.arin.net/rest/poc/HSIAO17-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/103.133.152.0/24"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "131 Continental Dr,\nSuite 305\nNewark\nDE\n19713\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Yao-cheng Hsiao"
],
[
"n",
{},
"text",
[
"Hsiao",
"Yao-cheng",
"",
"",
""
]
],
[
"kind",
{},
"text",
"individual"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-507-652-5757"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-09-24T16:55:33-04:00"
},
{
"eventAction": "registration",
"eventDate": "2024-08-05T02:07:42-04:00"
}
],
"handle": "TT-1022",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/TT-1022",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/103.133.152.0/24"
},
{
"href": "https://whois.arin.net/rest/org/TT-1022",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/103.133.152.0/24"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"https://taiwantelecom.online"
],
"title": "Registration Comments"
}
],
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Taiwan Telecom"
],
[
"adr",
{
"label": "131 Continental Dr Suite 305\nNewark\nDE\n19713\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-10-13T05:58:59-04:00"
},
{
"eventAction": "registration",
"eventDate": "2024-09-24T14:42:02-04:00"
}
],
"handle": "NET-103-133-152-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/103.133.152.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/103.133.152.0/24"
},
{
"href": "https://whois.arin.net/rest/net/NET-103-133-152-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/103.133.152.0/24"
}
],
"name": "TAIWAN-TELECOM",
"notices": [
{
"description": [
"By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/tou/",
"rel": "terms-of-service",
"type": "text/html",
"value": "https://rdap.arin.net/registry/ip/103.133.152.0/24"
}
],
"title": "Terms of Service"
},
{
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
"rel": "inaccuracy-report",
"type": "text/html",
"value": "https://rdap.arin.net/registry/ip/103.133.152.0/24"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-103-0-0-0-1",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"remarks": [
{
"description": [
"-----BEGIN TOKEN-----e5b3a105ae0402365d3cdace72ad1c50f0d2ee8d3c2569878a03447d6dcf08ecaac4da993f08bc792028dd930008f944379f81a3331a9bad60f6327e7901d31b-----END TOKEN-----"
],
"title": "Registration Comments"
}
],
"startAddress": "103.133.152.0",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
}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.