City: unknown
Region: Washington
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: 20.0.0.0 - 20.31.255.255
CIDR: 20.0.0.0/11
NetName: MSFT
NetHandle: NET-20-0-0-0-1
Parent: NET20 (NET-20-0-0-0-0)
NetType: Direct Allocation
OriginAS:
Organization: Microsoft Corporation (MSFT)
RegDate: 2017-10-18
Updated: 2021-12-14
Ref: https://rdap.arin.net/registry/ip/20.0.0.0
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: 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
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: 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
OrgRoutingHandle: CHATU3-ARIN
OrgRoutingName: Chaturmohta, Somesh
OrgRoutingPhone: +1-425-882-8080
OrgRoutingEmail: someshch@microsoft.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/CHATU3-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 <<>> 20.3.253.156
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 49576
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;20.3.253.156. IN A
;; AUTHORITY SECTION:
. 30 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2026091900 1800 900 604800 86400
;; Query time: 6 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sat Sep 19 23:30:29 CST 2026
;; MSG SIZE rcvd: 105Host 156.253.3.20.in-addr.arpa. not found: 3(NXDOMAIN)
Server: 183.60.83.19
Address: 183.60.83.19#53
** server can't find 156.253.3.20.in-addr.arpa: NXDOMAIN| IP | Type | Details | Datetime |
|---|---|---|---|
| 122.138.123.183 | attackbotsspam | Unauthorized connection attempt detected from IP address 122.138.123.183 to port 23 [J] |
2020-02-06 05:35:09 |
| 34.244.194.13 | attackbots | Automatic report - SSH Brute-Force Attack |
2020-02-06 05:45:28 |
| 181.49.150.45 | attack | Unauthorized connection attempt detected from IP address 181.49.150.45 to port 2220 [J] |
2020-02-06 05:29:01 |
| 73.241.198.168 | attackbots | Unauthorized connection attempt detected from IP address 73.241.198.168 to port 81 [J] |
2020-02-06 05:39:34 |
| 139.162.125.159 | attackspam | 3389BruteforceFW21 |
2020-02-06 05:33:16 |
| 188.158.226.89 | attackbots | Unauthorized connection attempt detected from IP address 188.158.226.89 to port 23 [J] |
2020-02-06 05:27:40 |
| 87.121.47.123 | attackbots | Unauthorized connection attempt detected from IP address 87.121.47.123 to port 23 [J] |
2020-02-06 05:38:51 |
| 170.80.227.244 | attack | Unauthorized connection attempt detected from IP address 170.80.227.244 to port 22 [J] |
2020-02-06 05:52:52 |
| 123.143.222.173 | attackbotsspam | Feb 5 19:09:26 [munged] sshd[30803]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.143.222.173 |
2020-02-06 05:34:38 |
| 39.113.197.251 | attackbots | Unauthorized connection attempt detected from IP address 39.113.197.251 to port 23 [J] |
2020-02-06 05:19:57 |
| 175.212.180.131 | attackbotsspam | Unauthorized connection attempt detected from IP address 175.212.180.131 to port 81 [J] |
2020-02-06 05:50:44 |
| 1.52.1.60 | attackbotsspam | Unauthorized connection attempt detected from IP address 1.52.1.60 to port 80 [J] |
2020-02-06 05:47:23 |
| 191.209.102.59 | attackbots | Automatic report - Port Scan Attack |
2020-02-06 05:49:21 |
| 200.201.177.70 | attack | Unauthorized connection attempt detected from IP address 200.201.177.70 to port 8080 [J] |
2020-02-06 05:24:27 |
| 170.81.145.133 | attackbots | Unauthorized connection attempt detected from IP address 170.81.145.133 to port 2220 [J] |
2020-02-06 05:52:27 |