City: Washington
Region: Virginia
Country: United States
Internet Service Provider: unknown
Hostname: unknown
Organization: unknown
Usage Type: unknown
#
# 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: 52.96.0.0 - 52.115.255.255
CIDR: 52.112.0.0/14, 52.96.0.0/12
NetName: MSFT
NetHandle: NET-52-96-0-0-1
Parent: NET52 (NET-52-0-0-0-0)
NetType: Direct Allocation
OriginAS:
Organization: Microsoft Corporation (MSFT)
RegDate: 2015-11-24
Updated: 2021-12-14
Ref: https://rdap.arin.net/registry/ip/52.96.0.0
OrgName: Microsoft Corporation
OrgId: MSFT
Address: One Microsoft Way
City: Redmond
StateProv: WA
PostalCode: 98052
Country: US
RegDate: 1998-07-10
Updated: 2025-06-10
Comment: To report suspected security issues specific to traffic emanating from Microsoft online services, including the distribution of malicious content or other illicit or illegal material through a Microsoft online service, please submit reports to:
Comment: * https://cert.microsoft.com.
Comment:
Comment: For SPAM and other abuse issues, such as Microsoft Accounts, please contact:
Comment: * abuse@microsoft.com.
Comment:
Comment: To report security vulnerabilities in Microsoft products and services, please contact:
Comment: * secure@microsoft.com.
Comment:
Comment: For legal and law enforcement-related requests, please contact:
Comment: * msndcc@microsoft.com
Comment:
Comment: For routing, peering or DNS issues, please
Comment: contact:
Comment: * IOC@microsoft.com
Ref: https://rdap.arin.net/registry/entity/MSFT
OrgTechHandle: BEDAR6-ARIN
OrgTechName: Bedard, Dawn
OrgTechPhone: +1-425-538-6637
OrgTechEmail: dabedard@microsoft.com
OrgTechRef: https://rdap.arin.net/registry/entity/BEDAR6-ARIN
OrgRoutingHandle: CHATU3-ARIN
OrgRoutingName: Chaturmohta, Somesh
OrgRoutingPhone: +1-425-882-8080
OrgRoutingEmail: someshch@microsoft.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/CHATU3-ARIN
OrgTechHandle: SINGH683-ARIN
OrgTechName: Singh, Prachi
OrgTechPhone: +1-425-707-5601
OrgTechEmail: pracsin@microsoft.com
OrgTechRef: https://rdap.arin.net/registry/entity/SINGH683-ARIN
OrgTechHandle: IPHOS5-ARIN
OrgTechName: IPHostmaster, IPHostmaster
OrgTechPhone: +1-425-538-6637
OrgTechEmail: iphostmaster@microsoft.com
OrgTechRef: https://rdap.arin.net/registry/entity/IPHOS5-ARIN
OrgAbuseHandle: MAC74-ARIN
OrgAbuseName: Microsoft Abuse Contact
OrgAbusePhone: +1-425-882-8080
OrgAbuseEmail: abuse@microsoft.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/MAC74-ARIN
OrgTechHandle: MRPD-ARIN
OrgTechName: Microsoft Routing, Peering, and DNS
OrgTechPhone: +1-425-882-8080
OrgTechEmail: IOC@microsoft.com
OrgTechRef: https://rdap.arin.net/registry/entity/MRPD-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.
#
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 52.101.53.12
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 28727
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;52.101.53.12. IN A
;; AUTHORITY SECTION:
. 30 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2026071901 1800 900 604800 86400
;; Query time: 30 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Mon Jul 20 10:05:19 CST 2026
;; MSG SIZE rcvd: 105
12.53.101.52.in-addr.arpa domain name pointer mail-eastusazon11012012.outbound.protection.outlook.com.
Server: 183.60.83.19
Address: 183.60.83.19#53
Non-authoritative answer:
12.53.101.52.in-addr.arpa name = mail-eastusazon11012012.outbound.protection.outlook.com.
Authoritative answers can be found from:
| IP | Type | Details | Datetime |
|---|---|---|---|
| 188.158.85.75 | attack | unauthorized connection attempt |
2020-01-12 14:16:48 |
| 5.200.64.54 | attackspambots | Unauthorized connection attempt detected from IP address 5.200.64.54 to port 1433 [J] |
2020-01-12 13:56:23 |
| 82.62.192.175 | attackbotsspam | unauthorized connection attempt |
2020-01-12 13:53:07 |
| 109.226.251.202 | attackspambots | unauthorized connection attempt |
2020-01-12 13:50:19 |
| 200.57.235.203 | attackbotsspam | unauthorized connection attempt |
2020-01-12 14:24:37 |
| 190.46.205.75 | attackspambots | unauthorized connection attempt |
2020-01-12 14:05:58 |
| 188.57.91.51 | attack | unauthorized connection attempt |
2020-01-12 13:58:16 |
| 14.240.84.229 | attack | unauthorized connection attempt |
2020-01-12 13:55:40 |
| 75.175.189.212 | attackbotsspam | Unauthorized connection attempt detected from IP address 75.175.189.212 to port 22 [J] |
2020-01-12 14:19:38 |
| 197.50.38.130 | attackspambots | unauthorized connection attempt |
2020-01-12 14:04:42 |
| 197.38.106.71 | attack | unauthorized connection attempt |
2020-01-12 14:22:27 |
| 116.5.186.49 | attackspam | unauthorized connection attempt |
2020-01-12 13:48:50 |
| 185.218.234.87 | attack | Jan 12 05:13:50 h1655903 dovecot: pop3-login: Disconnected \(auth failed, 1 attempts in 2 secs\): user=\ |
2020-01-12 14:06:33 |
| 60.170.255.227 | attackbots | unauthorized connection attempt |
2020-01-12 14:24:04 |
| 125.161.128.140 | attack | " " |
2020-01-12 14:00:09 |