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: 52.145.0.0 - 52.191.255.255
CIDR: 52.146.0.0/15, 52.160.0.0/11, 52.145.0.0/16, 52.148.0.0/14, 52.152.0.0/13
NetName: MSFT
NetHandle: NET-52-145-0-0-1
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/52.145.0.0
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
OrgTechHandle: IPHOS5-ARIN
OrgTechName: IPHostmaster, IPHostmaster
OrgTechPhone: +1-425-538-6637
OrgTechEmail: iphostmaster@microsoft.com
OrgTechRef: https://rdap.arin.net/registry/entity/IPHOS5-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
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
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
#
# 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 <<>> 52.146.21.82
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 9774
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;52.146.21.82. IN A
;; AUTHORITY SECTION:
. 30 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2026020600 1800 900 604800 86400
;; Query time: 9 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 06 17:30:59 CST 2026
;; MSG SIZE rcvd: 105Host 82.21.146.52.in-addr.arpa. not found: 3(NXDOMAIN)Server: 183.60.83.19
Address: 183.60.83.19#53
** server can't find 82.21.146.52.in-addr.arpa: NXDOMAIN| IP | Type | Details | Datetime |
|---|---|---|---|
| 222.186.180.17 | attack | Nov 6 15:50:13 root sshd[21859]: Failed password for root from 222.186.180.17 port 33690 ssh2 Nov 6 15:50:18 root sshd[21859]: Failed password for root from 222.186.180.17 port 33690 ssh2 Nov 6 15:50:22 root sshd[21859]: Failed password for root from 222.186.180.17 port 33690 ssh2 Nov 6 15:50:27 root sshd[21859]: Failed password for root from 222.186.180.17 port 33690 ssh2 ... |
2019-11-06 22:56:54 |
| 159.203.201.161 | attackspam | MultiHost/MultiPort Probe, Scan, Hack - |
2019-11-06 22:54:31 |
| 54.39.191.188 | attack | Nov 6 19:45:18 gw1 sshd[30101]: Failed password for root from 54.39.191.188 port 41872 ssh2 ... |
2019-11-06 22:53:33 |
| 92.118.38.54 | attack | Nov 6 15:41:51 andromeda postfix/smtpd\[18898\]: warning: unknown\[92.118.38.54\]: SASL LOGIN authentication failed: authentication failure Nov 6 15:41:55 andromeda postfix/smtpd\[18582\]: warning: unknown\[92.118.38.54\]: SASL LOGIN authentication failed: authentication failure Nov 6 15:42:29 andromeda postfix/smtpd\[18582\]: warning: unknown\[92.118.38.54\]: SASL LOGIN authentication failed: authentication failure Nov 6 15:42:43 andromeda postfix/smtpd\[18898\]: warning: unknown\[92.118.38.54\]: SASL LOGIN authentication failed: authentication failure Nov 6 15:42:44 andromeda postfix/smtpd\[12966\]: warning: unknown\[92.118.38.54\]: SASL LOGIN authentication failed: authentication failure |
2019-11-06 22:49:04 |
| 104.148.105.5 | attackbots | HTTP SQL Injection Attempt, PTR: bokeasq.com. |
2019-11-06 22:30:27 |
| 222.186.175.182 | attack | Nov 6 15:52:49 nextcloud sshd\[20667\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.182 user=root Nov 6 15:52:51 nextcloud sshd\[20667\]: Failed password for root from 222.186.175.182 port 53264 ssh2 Nov 6 15:52:55 nextcloud sshd\[20667\]: Failed password for root from 222.186.175.182 port 53264 ssh2 ... |
2019-11-06 22:58:52 |
| 159.203.201.15 | attackbots | MultiHost/MultiPort Probe, Scan, Hack - |
2019-11-06 23:08:29 |
| 148.72.211.251 | attack | xmlrpc attack |
2019-11-06 23:08:54 |
| 159.203.201.164 | attackspam | MultiHost/MultiPort Probe, Scan, Hack - |
2019-11-06 22:51:02 |
| 159.203.201.145 | attackbots | MultiHost/MultiPort Probe, Scan, Hack - |
2019-11-06 23:11:55 |
| 159.65.218.75 | attack | SIPVicious Scanner Detection, PTR: PTR record not found |
2019-11-06 22:37:32 |
| 193.70.81.201 | attackbots | 5x Failed Password |
2019-11-06 22:49:36 |
| 46.234.255.115 | attackspam | Unauthorised access (Nov 6) SRC=46.234.255.115 LEN=40 TTL=247 ID=23144 TCP DPT=445 WINDOW=1024 SYN Unauthorised access (Nov 5) SRC=46.234.255.115 LEN=40 TTL=247 ID=7726 TCP DPT=1433 WINDOW=1024 SYN |
2019-11-06 22:31:01 |
| 222.186.180.223 | attackspam | Nov 6 04:53:29 php1 sshd\[29410\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.180.223 user=root Nov 6 04:53:32 php1 sshd\[29410\]: Failed password for root from 222.186.180.223 port 43848 ssh2 Nov 6 04:53:49 php1 sshd\[29410\]: Failed password for root from 222.186.180.223 port 43848 ssh2 Nov 6 04:53:58 php1 sshd\[29457\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.180.223 user=root Nov 6 04:53:59 php1 sshd\[29457\]: Failed password for root from 222.186.180.223 port 47522 ssh2 |
2019-11-06 22:56:37 |
| 106.12.211.175 | attackbotsspam | Nov 6 14:34:41 localhost sshd\[47440\]: Invalid user s0mcur1t1b4 from 106.12.211.175 port 40420 Nov 6 14:34:41 localhost sshd\[47440\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.211.175 Nov 6 14:34:42 localhost sshd\[47440\]: Failed password for invalid user s0mcur1t1b4 from 106.12.211.175 port 40420 ssh2 Nov 6 14:41:54 localhost sshd\[47752\]: Invalid user manager from 106.12.211.175 port 50306 Nov 6 14:41:54 localhost sshd\[47752\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.211.175 ... |
2019-11-06 22:51:27 |