AS45139 Microsoft Corp 🇸🇬 SG
Microsoft Singapore Pte. Ltd.. Announcing 4 prefixes, seen at the RIS collectors.
IPv4 prefixes
2
768 (3 × /24)
IPv6 prefixes
2
2 × /48
Upstreams
1
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it
Registry and operator data
- AS number
- AS45139
- Name
- Microsoft Corp
- Organisation
- Microsoft Singapore Pte. Ltd.
- Country
- 🇸🇬 SG
- RIR
- APNIC
- Allocated
- 2008-03-07
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Whois
Fetched from whois.apnic.net
as-block: AS45056 - AS46079 descr: APNIC ASN block remarks: These AS numbers are further assigned by APNIC remarks: to APNIC members and end-users in the APNIC region admin-c: HM20-AP tech-c: HM20-AP mnt-by: APNIC-HM mnt-lower: APNIC-HM last-modified: 2009-09-29T05:48:11Z source: APNIC role: APNIC Hostmaster address: PO Box 3646 address: South Brisbane address: QLD 4101 country: AU phone: +61 7 3858 3100 fax-no: +61 7 3858 3199 e-mail: helpdesk@apnic.net admin-c: AMS11-AP tech-c: AH256-AP nic-hdl: HM20-AP remarks: Administrator for APNIC notify: hostmaster@apnic.net mnt-by: MAINT-APNIC-AP last-modified: 2026-08-26T00:40:00Z source: APNIC aut-num: AS45139 as-name: MICROSOFT-AS-AP descr: Microsoft Corp country: JP import: from AS6175 action pref=100; accept ANY import: from AS18084 action pref=100; accept ANY export: to AS6175 announce AS45139 export: to AS18084 announce AS45139 default: to AS18084 action pref=1; networks ANY default: to AS6175 action pref=2; networks ANY remarks: For routing problems with this ASN contact the admin-c org: ORG-MSPL4-AP admin-c: NK160-AP tech-c: NK160-AP abuse-c: AM2589-AP notify: naokikit@microsoft.com mnt-lower: MAINT-AP-MSFT mnt-routes: MAINT-AP-MSFT mnt-by: APNIC-HM mnt-irt: IRT-MICROSOFT-APNIC-SG last-modified: 2020-07-07T05:09:05Z source: APNIC irt: IRT-MICROSOFT-APNIC-SG address: One Microsft Way address: Redmond, WA 98052 address: US e-mail: abuse@microsoft.com abuse-mailbox: abuse@microsoft.com admin-c: MP234-AP tech-c: MP234-AP auth: # Filtered remarks: abuse@microsoft.com is invalid mnt-by: MAINT-AP-MICROSOFT last-modified: 2025-11-18T00:26:27Z 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: dawn.bedard@microsoft.com 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: abuse@microsoft.com admin-c: MP234-AP tech-c: MP234-AP nic-hdl: AM2589-AP remarks: Generated from irt object IRT-MICROSOFT-APNIC-SG remarks: abuse@microsoft.com is invalid abuse-mailbox: abuse@microsoft.com mnt-by: APNIC-ABUSE last-modified: 2025-09-04T18:10:10Z source: APNIC person: Naoki Kitajima nic-hdl: NK160-AP e-mail: naokikit@microsoft.com address: Akasaka Garden City 4-15-1 Akasaka, Minato-ku, Tokyo 107-0052 phone: +81-3-4512-3346 fax-no: +81-3-4512-3416 country: JP mnt-by: MAINT-AP-MSFT last-modified: 2008-09-04T07:50:54Z source: APNIC