Registry · RDAP Original response
https://rdap.arin.net/registry/ip/205.167.22.0
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v4prefix": "205.167.22.0",
"length": 23
}
],
"endAddress": "205.167.23.255",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-01-03T13:37:37-05:00"
},
{
"eventAction": "registration",
"eventDate": "2002-09-03T15:32:22-04:00"
}
],
"handle": "ADMIN9-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ADMIN9-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/205.167.22.0"
},
{
"href": "https://whois.arin.net/rest/poc/ADMIN9-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/205.167.22.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse",
"administrative",
"noc",
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "1791 Deere Avenue\nIrvine\nCA\n92606\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Administrator"
],
[
"org",
[],
"text",
"Newport Corporation"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"dst-network@mksinst.com"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-949-253-1411"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2018-01-10T12:55:13-05:00"
},
{
"eventAction": "registration",
"eventDate": "1995-03-30T00:00:00-05:00"
}
],
"handle": "MKSINS",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/MKSINS",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/205.167.22.0"
},
{
"href": "https://whois.arin.net/rest/org/MKSINS",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/205.167.22.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"MKS Instruments, Inc"
],
[
"adr",
{
"label": "2 Tech Dr. Suite 201\nAndover\nMA\n01810\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2010-06-04T12:38:55-04:00"
},
{
"eventAction": "registration",
"eventDate": "2001-01-31T11:02:12-05:00"
}
],
"handle": "IM115-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/IM115-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/205.167.22.0"
},
{
"href": "https://whois.arin.net/rest/poc/IM115-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/205.167.22.0"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2011-06-04"
],
"title": "Unvalidated POC"
}
],
"roles": [
"abuse",
"technical"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "6 Shattuck Road\nAndover\nMA\n01810\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"MKS Instruments Inc"
],
[
"org",
[],
"text",
"MKS Instruments, Inc."
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"network_admins@mksinst.com"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-978-975-2350"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2022-05-12T10:48:37-04:00"
},
{
"eventAction": "registration",
"eventDate": "1995-03-30T00:00:00-05:00"
}
],
"handle": "NET-205-167-22-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/205.167.22.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/205.167.22.0"
},
{
"href": "https://whois.arin.net/rest/net/NET-205-167-22-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/205.167.22.0"
}
],
"name": "MKSINST",
"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/205.167.22.0"
}
],
"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/205.167.22.0"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-205-0-0-0-0",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "205.167.22.0",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
}