Registry · RDAP Original response
https://rdap.apnic.net/ip/161.43.192.0/18
{
"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/161.43.192.0/18",
"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/161.43.192.0/18",
"rel": "inaccuracy-report",
"href": "https://www.apnic.net/manage-ip/using-whois/abuse-and-spamming/invalid-contact-form",
"type": "text/html"
}
]
}
],
"country": "AU",
"name": "OPTUSNET",
"status": [
"active"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2008-09-04T06:54:02Z"
},
{
"eventAction": "last changed",
"eventDate": "2021-01-15T01:44:56Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/ip/161.43.192.0/18",
"rel": "self",
"href": "https://rdap.apnic.net/ip/161.43.0.0/16",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"imported inetnum object for OCPL"
],
"title": "description"
},
{
"description": [
"----------",
"imported from ARIN object:",
"",
"inetnum: 161.43.0.0 - 161.43.255.255",
"netname: OPTUSNET",
"org-id: OCPL",
"status: assignment",
"tech-c: GW311-ARIN",
"reg-date: 1992-05-18",
"changed: hostmaster@arin.net 19920518",
"source: ARIN",
"",
"----------"
],
"title": "remarks"
}
],
"entities": [
{
"roles": [
"technical",
"administrative"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2008-09-04T07:31:28Z"
},
{
"eventAction": "last changed",
"eventDate": "2008-09-04T07:31:28Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/ip/161.43.192.0/18",
"rel": "self",
"href": "https://rdap.apnic.net/entity/GW51-AP",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"----------",
"imported from ARIN object:",
"",
"poc-handle: GW311-ARIN",
"is-role: N",
"last-name: Whelan",
"first-name: Geoff",
"street: OptusNet 25 Atchison St St Leonards, 2065",
"country: AU",
"mailbox: domain@optusnet.com.au",
"fax-phone: 61 2 9439 1760",
"bus-phone: 61 2 1300 301 325",
"reg-date: 1992-05-18",
"changed: hostmaster@arin.poc 20010220",
"source: ARIN",
"",
"----------"
],
"title": "remarks"
}
],
"handle": "GW51-AP",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Geoff Whelan"
],
[
"kind",
[],
"text",
"individual"
],
[
"adr",
{
"label": "OptusNet 25 Atchison St St Leonards, 2065"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+61 2 1300 301 325"
],
[
"tel",
{
"type": "fax"
},
"text",
"+61 2 9439 1760"
],
[
"email",
[],
"text",
"domain@optusnet.com.au"
]
]
]
},
{
"roles": [
"abuse"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2010-12-12T21:36:40Z"
},
{
"eventAction": "last changed",
"eventDate": "2026-07-12T00:05:20Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/ip/161.43.192.0/18",
"rel": "self",
"href": "https://rdap.apnic.net/entity/IRT-OPTUSCOM-AU",
"type": "application/rdap+json"
}
],
"remarks": [
{
"description": [
"abuse@optusnet.com.au was validated on 2026-07-01"
],
"title": "remarks"
}
],
"handle": "IRT-OPTUSCOM-AU",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"IRT-OPTUSCOM-AU"
],
[
"kind",
[],
"text",
"group"
],
[
"adr",
{
"label": "SingTel Optus Pty Ltd\nOptus Macquarie Park (OCS)\n1 Lyonpark Road\nMacquarie Park NSW 2113"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
[],
"text",
"abuse@optusnet.com.au"
],
[
"email",
{
"pref": "1"
},
"text",
"abuse@optusnet.com.au"
]
]
]
},
{
"roles": [
"registrant"
],
"events": [
{
"eventAction": "registration",
"eventDate": "2017-08-28T12:56:49Z"
},
{
"eventAction": "last changed",
"eventDate": "2025-09-25T13:05:45Z"
}
],
"links": [
{
"value": "https://rdap.apnic.net/ip/161.43.192.0/18",
"rel": "self",
"href": "https://rdap.apnic.net/entity/ORG-SOPL2-AP",
"type": "application/rdap+json"
}
],
"handle": "ORG-SOPL2-AP",
"objectClassName": "entity",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"SingTel Optus Pty Ltd"
],
[
"kind",
[],
"text",
"org"
],
[
"adr",
{
"label": "Optus Macquarie Park (OCS)\n1 Lyonpark Road, Macquarie Park"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+61-2-8082-7800"
],
[
"tel",
{
"type": "fax"
},
"text",
"+61-2-8082-7100"
],
[
"email",
[],
"text",
"irr-admin@optus.com.au"
]
]
]
}
],
"handle": "161.43.0.0 - 161.43.255.255",
"type": "ALLOCATED PORTABLE",
"startAddress": "161.43.0.0",
"endAddress": "161.43.255.255",
"objectClassName": "ip network",
"ipVersion": "v4",
"cidr0_cidrs": [
{
"v4prefix": "161.43.0.0",
"length": 16
}
],
"port43": "whois.apnic.net"
}