Whois & RDAP Lookup
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RDAPIP Range158.23.0.0 - 158.23.255.255
Handle158.23.0.0 - 158.23.255.255
NameMICROSOFT-APNIC-AS-AP
TypeALLOCATED PORTABLE
CountrySG
HolderMicrosoft Singapore Pte. Ltd.
Registered2022-04-28 07:06 UTC
Updated2022-12-16 05:54 UTC
RegistrantMicrosoft Singapore Pte. Ltd.
Email[email protected]
Phone+011-425-706-8080
AddressOne Microsoft Way
Admin ContactDawn Bedard
Email[email protected]
Phone+0114257062751
AddressOne Microsoft Way
Tech ContactMSFT POC
Email[email protected]
Phone+1-425-882-8080
AddressOne Microsft Way, Redmond, WA 98052, US
Abuse Contact[email protected]
Statusactive
Registry RDAPhttps://rdap.arin.net
Raw 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: 158.23.0.0 - 158.23.255.255
CIDR: 158.23.0.0/16
NetName: APNIC
NetHandle: NET-158-23-0-0-1
Parent: NET158 (NET-158-0-0-0-0)
NetType: Early Registrations, Transferred to APNIC
OriginAS:
Organization: Asia Pacific Network Information Centre (APNIC)
RegDate: 2022-04-28
Updated: 2022-04-28
Ref: https://rdap.arin.net/registry/ip/158.23.0.0
ResourceLink: https://apps.db.ripe.net/db-web-ui/query
ResourceLink: whois://whois.apnic.net
OrgName: Asia Pacific Network Information Centre
OrgId: APNIC
Address: PO Box 3646
City: South Brisbane
StateProv: QLD
PostalCode: 4101
Country: AU
RegDate:
Updated: 2012-01-24
Ref: https://rdap.arin.net/registry/entity/APNIC
ReferralServer: whois://whois.apnic.net
ResourceLink: http://wq.apnic.net/whois-search/static/search.html
OrgTechHandle: AWC12-ARIN
OrgTechName: APNIC Whois Contact
OrgTechPhone: +61 7 3858 3188
OrgTechEmail: [email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/AWC12-ARIN
OrgAbuseHandle: AWC12-ARIN
OrgAbuseName: APNIC Whois Contact
OrgAbusePhone: +61 7 3858 3188
OrgAbuseEmail: [email protected]
OrgAbuseRef: https://rdap.arin.net/registry/entity/AWC12-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.
#
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to '158.23.0.0 - 158.23.255.255'
% Abuse contact for '158.23.0.0 - 158.23.255.255' is '[email protected]'
inetnum: 158.23.0.0 - 158.23.255.255
netname: MICROSOFT-APNIC-AS-AP
descr: Microsoft Singapore Pte. Ltd.
country: SG
org: ORG-MSPL4-AP
admin-c: DB662-AP
tech-c: MP234-AP
abuse-c: AM2589-AP
remarks: --------------------------------------------------------
remarks: To report network abuse, please contact mnt-irt
remarks: For troubleshooting, please contact tech-c and admin-c
remarks: Report invalid contact via www.apnic.net/invalidcontact
remarks: --------------------------------------------------------
status: ALLOCATED PORTABLE
mnt-by: APNIC-HM
mnt-lower: MAINT-MOPL-SG
mnt-routes: MAINT-MOPL-SG
mnt-lower: MAINT-AP-MICROSOFT
mnt-routes: MAINT-AP-MICROSOFT
mnt-irt: IRT-MICROSOFT-APNIC-SG
mnt-irt: IRT-MOPL-SG
last-modified: 2022-12-16T05:54:14Z
source: APNIC
irt: IRT-MICROSOFT-APNIC-SG
address: One Microsft Way
address: Redmond, WA 98052
address: US
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: MP234-AP
tech-c: MP234-AP
auth: # Filtered
remarks: [email protected] is invalid
mnt-by: MAINT-AP-MICROSOFT
last-modified: 2025-11-18T00:26:27Z
source: APNIC
irt: IRT-MOPL-SG
address: 80 Raffles Place,
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: MOPL1-AP
tech-c: MOPL1-AP
auth: # Filtered
remarks: [email protected] is invalid
mnt-by: MAINT-MOPL-SG
last-modified: 2025-11-18T00:36:31Z
source: APNIC
organisation: ORG-MSPL4-AP
org-name: Microsoft Singapore Pte. Ltd.
country: US
address: One Microsoft Way
phone: +011-425-706-8080
fax-no: +011-425-936-7329
e-mail: [email protected]
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2020-05-27T12:56:32Z
source: APNIC
role: ABUSE MICROSOFTAPNICSG
country: ZZ
address: One Microsft Way
address: Redmond, WA 98052
address: US
phone: +000000000
e-mail: [email protected]
admin-c: MP234-AP
tech-c: MP234-AP
nic-hdl: AM2589-AP
remarks: Generated from irt object IRT-MICROSOFT-APNIC-SG
remarks: [email protected] is invalid
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2025-09-04T18:10:10Z
source: APNIC
person: Dawn Bedard
address: One Microsoft Way
country: US
phone: +0114257062751
e-mail: [email protected]
nic-hdl: DB662-AP
mnt-by: MAINT-AP-MICROSOFT
last-modified: 2019-03-25T16:26:42Z
source: APNIC
person: MSFT POC
nic-hdl: MP234-AP
e-mail: [email protected]
address: One Microsft Way
address: Redmond, WA 98052
address: US
phone: +1-425-882-8080
country: US
mnt-by: MAINT-AP-MICROSOFT
last-modified: 2008-09-04T07:32:53Z
source: APNIC
% Information related to '158.23.0.0/16AS8075'
route: 158.23.0.0/16
origin: AS8075
descr: Microsoft Singapore Pte. Ltd.
One Microsoft Way
mnt-by: MAINT-AP-MICROSOFT
mnt-by: MAINT-MOPL-SG
last-modified: 2022-12-16T05:54:14Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-SG1)
% Query time: 873 msec
% WHEN: Tue Oct 20 17:39:35 UTC 2026Raw RDAP JSON (registry) https://rdap.arin.net
{
"cidr0_cidrs": [
{
"length": 16,
"v4prefix": "158.23.0.0"
}
],
"country": "SG",
"endAddress": "158.23.255.255",
"entities": [
{
"events": [
{
"eventAction": "registration",
"eventDate": "2019-03-25T16:26:42Z"
},
{
"eventAction": "last changed",
"eventDate": "2019-03-25T16:26:42Z"
}
],
"handle": "DB662-AP",
"links": [
{
"href": "https://rdap.apnic.net/entity/DB662-AP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/158.23.0.0/16"
}
],
"objectClassName": "entity",
"roles": [
"administrative"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Dawn Bedard"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "One Microsoft Way"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+0114257062751"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
},
{
"events": [
{
"eventAction": "registration",
"eventDate": "2008-09-04T07:32:53Z"
},
{
"eventAction": "last changed",
"eventDate": "2008-09-04T07:32:53Z"
}
],
"handle": "MP234-AP",
"links": [
{
"href": "https://rdap.apnic.net/entity/MP234-AP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/158.23.0.0/16"
}
],
"objectClassName": "entity",
"roles": [
"technical"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"MSFT POC"
],
[
"kind",
{},
"text",
"individual"
],
[
"adr",
{
"label": "One Microsft Way\nRedmond, WA 98052\nUS"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+1-425-882-8080"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
},
{
"events": [
{
"eventAction": "registration",
"eventDate": "2010-11-24T04:52:00Z"
},
{
"eventAction": "last changed",
"eventDate": "2025-11-18T00:26:27Z"
}
],
"handle": "IRT-MICROSOFT-APNIC-SG",
"links": [
{
"href": "https://rdap.apnic.net/entity/IRT-MICROSOFT-APNIC-SG",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/158.23.0.0/16"
}
],
"objectClassName": "entity",
"remarks": [
{
"description": [
"[email protected] is invalid"
],
"title": "remarks"
}
],
"roles": [
"abuse"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"IRT-MICROSOFT-APNIC-SG"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "One Microsft Way\nRedmond, WA 98052\nUS"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{
"pref": "1"
},
"text",
"[email protected]"
]
]
]
},
{
"events": [
{
"eventAction": "registration",
"eventDate": "2022-11-16T00:30:19Z"
},
{
"eventAction": "last changed",
"eventDate": "2025-11-18T00:36:31Z"
}
],
"handle": "IRT-MOPL-SG",
"links": [
{
"href": "https://rdap.apnic.net/entity/IRT-MOPL-SG",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/158.23.0.0/16"
}
],
"objectClassName": "entity",
"remarks": [
{
"description": [
"[email protected] is invalid"
],
"title": "remarks"
}
],
"roles": [
"abuse"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"IRT-MOPL-SG"
],
[
"kind",
{},
"text",
"group"
],
[
"adr",
{
"label": "80 Raffles Place,"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{},
"text",
"[email protected]"
],
[
"email",
{
"pref": "1"
},
"text",
"[email protected]"
]
]
]
},
{
"events": [
{
"eventAction": "registration",
"eventDate": "2017-11-09T12:56:40Z"
},
{
"eventAction": "last changed",
"eventDate": "2020-05-27T12:56:32Z"
}
],
"handle": "ORG-MSPL4-AP",
"links": [
{
"href": "https://rdap.apnic.net/entity/ORG-MSPL4-AP",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/158.23.0.0/16"
}
],
"objectClassName": "entity",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"Microsoft Singapore Pte. Ltd."
],
[
"kind",
{},
"text",
"org"
],
[
"adr",
{
"label": "One Microsoft Way"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"tel",
{
"type": "voice"
},
"text",
"+011-425-706-8080"
],
[
"tel",
{
"type": "fax"
},
"text",
"+011-425-936-7329"
],
[
"email",
{},
"text",
"[email protected]"
]
]
]
}
],
"events": [
{
"eventAction": "registration",
"eventDate": "2022-04-28T07:06:24Z"
},
{
"eventAction": "last changed",
"eventDate": "2022-12-16T05:54:14Z"
}
],
"handle": "158.23.0.0 - 158.23.255.255",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.apnic.net/ip/158.23.0.0/16",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.apnic.net/ip/158.23.0.0/16"
}
],
"name": "MICROSOFT-APNIC-AS-AP",
"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/158.23.0.0/16"
}
],
"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/158.23.0.0/16"
}
],
"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": [
"Microsoft Singapore Pte. Ltd."
],
"title": "description"
},
{
"description": [
"--------------------------------------------------------",
"To report network abuse, please contact mnt-irt",
"For troubleshooting, please contact tech-c and admin-c",
"Report invalid contact via www.apnic.net/invalidcontact",
"--------------------------------------------------------"
],
"title": "remarks"
}
],
"startAddress": "158.23.0.0",
"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.