Whois & RDAP Lookup
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RDAPRaw WHOIS response
# # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. # NetRange: 144.203.0.0 - 144.203.255.255 CIDR: 144.203.0.0/16 NetName: BARRA NetHandle: NET-144-203-0-0-1 Parent: NET144 (NET-144-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: Barra International, LLC (BARRA-Z) RegDate: 1990-12-20 Updated: 2025-08-14 Comment: -----BEGIN CERTIFICATE-----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 Comment: -----END CERTIFICATE----- Ref: https://rdap.arin.net/registry/ip/144.203.0.0 OrgName: Barra International, LLC OrgId: BARRA-Z Address: 2100 Milvia Street City: Berkeley StateProv: CA PostalCode: 94704 Country: US RegDate: 2024-01-22 Updated: 2024-02-06 Ref: https://rdap.arin.net/registry/entity/BARRA-Z OrgDNSHandle: KOROS2-ARIN OrgDNSName: korosztos, gabor OrgDNSPhone: +8812503 OrgDNSEmail: [email protected] OrgDNSRef: https://rdap.arin.net/registry/entity/KOROS2-ARIN OrgAbuseHandle: KOROS2-ARIN OrgAbuseName: korosztos, gabor OrgAbusePhone: +8812503 OrgAbuseEmail: [email protected] OrgAbuseRef: https://rdap.arin.net/registry/entity/KOROS2-ARIN OrgNOCHandle: KOROS2-ARIN OrgNOCName: korosztos, gabor OrgNOCPhone: +8812503 OrgNOCEmail: [email protected] OrgNOCRef: https://rdap.arin.net/registry/entity/KOROS2-ARIN OrgNOCHandle: MBI43-ARIN OrgNOCName: MSCI Barra Internetadmin OrgNOCPhone: +1-212-804-3900 OrgNOCEmail: [email protected] OrgNOCRef: https://rdap.arin.net/registry/entity/MBI43-ARIN OrgRoutingHandle: KOROS2-ARIN OrgRoutingName: korosztos, gabor OrgRoutingPhone: +8812503 OrgRoutingEmail: [email protected] OrgRoutingRef: https://rdap.arin.net/registry/entity/KOROS2-ARIN OrgTechHandle: KOROS2-ARIN OrgTechName: korosztos, gabor OrgTechPhone: +8812503 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/KOROS2-ARIN OrgAbuseHandle: MBI42-ARIN OrgAbuseName: MSCI Barra Internetadmin OrgAbusePhone: +1-212-804-3900 OrgAbuseEmail: [email protected] OrgAbuseRef: https://rdap.arin.net/registry/entity/MBI42-ARIN OrgTechHandle: MBI43-ARIN OrgTechName: MSCI Barra Internetadmin OrgTechPhone: +1-212-804-3900 OrgTechEmail: [email protected] OrgTechRef: https://rdap.arin.net/registry/entity/MBI43-ARIN RNOCHandle: MBI43-ARIN RNOCName: MSCI Barra Internetadmin RNOCPhone: +1-212-804-3900 RNOCEmail: [email protected] RNOCRef: https://rdap.arin.net/registry/entity/MBI43-ARIN RAbuseHandle: MBI42-ARIN RAbuseName: MSCI Barra Internetadmin RAbusePhone: +1-212-804-3900 RAbuseEmail: [email protected] RAbuseRef: https://rdap.arin.net/registry/entity/MBI42-ARIN RTechHandle: MBI43-ARIN RTechName: MSCI Barra Internetadmin RTechPhone: +1-212-804-3900 RTechEmail: [email protected] RTechRef: https://rdap.arin.net/registry/entity/MBI43-ARIN # # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. # % Query time: 643 msec % WHEN: Sun Sep 06 13:56:25 UTC 2026
Raw RDAP JSON (registry) https://rdap.arin.net
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"length": 16,
"v4prefix": "144.203.0.0"
}
],
"endAddress": "144.203.255.255",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-05-19T03:32:05-04:00"
},
{
"eventAction": "registration",
"eventDate": "2021-05-04T09:48:34-04:00"
}
],
"handle": "KOROS2-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/KOROS2-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/144.203.128.0/22"
},
{
"href": "https://whois.arin.net/rest/poc/KOROS2-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/144.203.128.0/22"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"dns",
"abuse",
"noc",
"routing",
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "kassak 19-21\nBudapest\nPEst\n1134\nHungary"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"gabor korosztos"
],
[
"n",
{},
"text",
[
"korosztos",
"gabor",
"",
"",
""
]
],
[
"kind",
{},
"text",
"individual"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+8812503"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-05-19T03:31:43-04:00"
},
{
"eventAction": "registration",
"eventDate": "2007-02-14T12:30:17-05:00"
}
],
"handle": "MBI42-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/MBI42-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/144.203.128.0/22"
},
{
"href": "https://whois.arin.net/rest/poc/MBI42-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/144.203.128.0/22"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Please use our e-mail address to contact MSCI.\r",
"\r",
"http://www.msci.com"
],
"title": "Registration Comments"
}
],
"roles": [
"abuse",
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "7 World Trade Center\r\n250 Greenwich Street \r\n49th Floor\nNew York\nNY\n10007\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"MSCI Barra Internetadmin"
],
[
"org",
{},
"text",
"MSCI Barra"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-212-804-3900"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-05-14T07:18:32-04:00"
},
{
"eventAction": "registration",
"eventDate": "2007-02-14T12:36:16-05:00"
}
],
"handle": "MBI43-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/MBI43-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/144.203.128.0/22"
},
{
"href": "https://whois.arin.net/rest/poc/MBI43-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/144.203.128.0/22"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Please use our e-mail address to contact MSCI.\r",
"\r",
"http://www.msci.com"
],
"title": "Registration Comments"
}
],
"roles": [
"noc",
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "7 World Trade Center\r\n250 Greenwich Street \r\n49th Floor\nNew York\nNY\n10007\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"MSCI Barra Internetadmin"
],
[
"org",
{},
"text",
"MSCI Barra"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-212-804-3900"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2024-02-06T13:45:43-05:00"
},
{
"eventAction": "registration",
"eventDate": "2024-01-22T16:10:11-05:00"
}
],
"handle": "BARRA-Z",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/BARRA-Z",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/144.203.128.0/22"
},
{
"href": "https://whois.arin.net/rest/org/BARRA-Z",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/144.203.128.0/22"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Barra International, LLC"
],
[
"adr",
{
"label": "2100 Milvia Street\nBerkeley\nCA\n94704\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-05-19T03:31:43-04:00"
},
{
"eventAction": "registration",
"eventDate": "2007-02-14T12:30:17-05:00"
}
],
"handle": "MBI42-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/MBI42-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/144.203.128.0/22"
},
{
"href": "https://whois.arin.net/rest/poc/MBI42-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/144.203.128.0/22"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Please use our e-mail address to contact MSCI.\r",
"\r",
"http://www.msci.com"
],
"title": "Registration Comments"
}
],
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "7 World Trade Center\r\n250 Greenwich Street \r\n49th Floor\nNew York\nNY\n10007\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"MSCI Barra Internetadmin"
],
[
"org",
{},
"text",
"MSCI Barra"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-212-804-3900"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-05-14T07:18:32-04:00"
},
{
"eventAction": "registration",
"eventDate": "2007-02-14T12:36:16-05:00"
}
],
"handle": "MBI43-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/MBI43-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/144.203.128.0/22"
},
{
"href": "https://whois.arin.net/rest/poc/MBI43-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/144.203.128.0/22"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Please use our e-mail address to contact MSCI.\r",
"\r",
"http://www.msci.com"
],
"title": "Registration Comments"
}
],
"roles": [
"noc",
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "7 World Trade Center\r\n250 Greenwich Street \r\n49th Floor\nNew York\nNY\n10007\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"MSCI Barra Internetadmin"
],
[
"org",
{},
"text",
"MSCI Barra"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-212-804-3900"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-08-14T05:25:28-04:00"
},
{
"eventAction": "registration",
"eventDate": "1990-12-20T00:00:00-05:00"
}
],
"handle": "NET-144-203-0-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/144.203.0.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/144.203.128.0/22"
},
{
"href": "https://whois.arin.net/rest/net/NET-144-203-0-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/144.203.128.0/22"
}
],
"name": "BARRA",
"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/144.203.128.0/22"
}
],
"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/144.203.128.0/22"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-144-0-0-0-0",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"remarks": [
{
"description": [
"-----BEGIN CERTIFICATE-----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",
"-----END CERTIFICATE-----"
],
"title": "Registration Comments"
}
],
"startAddress": "144.203.0.0",
"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.