Must be a valid IPv4 or IPv6 ip address, e.g. 127.0.0.1 or 2001:DB8:0:0:8:800:200C:417A
Basic Info

City: Melbourne

Region: Victoria

Country: Australia

Internet Service Provider: unknown

Hostname: unknown

Organization: unknown

Usage Type: unknown

Comments:
No discussion about this IP yet. Click above link to make one.
Comments on same subnet:
No discussion about this subnet yet..
Whois info:
% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to '121.208.0.0 - 121.223.255.255'

% Abuse contact for '121.208.0.0 - 121.223.255.255' is 'abuse@telstra.net'

inetnum:        121.208.0.0 - 121.223.255.255
netname:        TELSTRAINTERNET45-AU
descr:          Telstra Limited
country:        AU
org:            ORG-TC6-AP
admin-c:        TIAR-AP
tech-c:         TAN2-AP
abuse-c:        AT1005-AP
status:         ALLOCATED PORTABLE
remarks:        -----
remarks:        All reports regarding SPAM or security breaches
remarks:        should be addressed to abuse@telstra.net
remarks:        ------
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:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-AU-TIAR-AP
mnt-routes:     MAINT-AU-TIAR-AP
mnt-irt:        IRT-TELSTRA-AU
last-modified:  2024-05-10T00:50:21Z
geofeed:        https://geofeed.tools.telstra.net/geofeed.csv
source:         APNIC

irt:            IRT-TELSTRA-AU
address:        Telstra Internet
e-mail:         abuse@telstra.net
abuse-mailbox:  abuse@telstra.net
admin-c:        TIAR-AP
tech-c:         TIAR-AP
auth:           # Filtered
remarks:        abuse@telstra.net was validated on 2026-01-26
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2026-01-26T01:19:20Z
source:         APNIC

organisation:   ORG-TC6-AP
org-name:       Telstra Limited
org-type:       LIR
country:        AU
address:        242 Exhibition Street
e-mail:         corporateaddressing@team.telstra.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2024-12-06T08:30:50Z
source:         APNIC

role:           ABUSE TELSTRAAU
country:        ZZ
address:        Telstra Internet
phone:          +000000000
e-mail:         abuse@telstra.net
admin-c:        TIAR-AP
tech-c:         TIAR-AP
nic-hdl:        AT1005-AP
remarks:        Generated from irt object IRT-TELSTRA-AU
remarks:        abuse@telstra.net was validated on 2026-01-26
abuse-mailbox:  abuse@telstra.net
mnt-by:         APNIC-ABUSE
last-modified:  2026-01-26T01:19:29Z
source:         APNIC

role:           Telstra AU NOC
address:        Telstra Internet
address:        242 Exhibition Street
address:        Melbourne
address:        VIC 3000
country:        AU
phone:          +61 3 8650 3305
e-mail:         ipnoc-au@team.telstra.com
admin-c:        TIAR-AP
tech-c:         TIAR-AP
nic-hdl:        TAN2-AP
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2025-11-26T05:11:17Z
source:         APNIC

person:         Telstra Internet Address Registry
address:        Telstra Internet
address:        242 Exhibition St
address:        Melbourne
address:        VIC 3000
country:        AU
phone:          +61 000000000
e-mail:         addressing@telstra.net
nic-hdl:        TIAR-AP
remarks:        Telstra Internet Address Registry Role Object
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2021-12-09T22:28:56Z
source:         APNIC

% Information related to '121.208.0.0/12AS1221'

route:          121.208.0.0/12
origin:         AS1221
descr:          Telstra Corporation
                242 Exhibition Street
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2019-12-11T21:04:45Z
source:         APNIC

% Information related to '121.208.0.0/12AS19905'

route:          121.208.0.0/12
origin:         AS19905
descr:          Telstra Corporation Limited
                242 Exhibition Street
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2022-09-12T01:26:27Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.47 (WHOIS-AU4)
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 121.220.252.136
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 20053
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;121.220.252.136.		IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2026030700 1800 900 604800 86400

;; Query time: 9 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sat Mar 07 22:00:57 CST 2026
;; MSG SIZE  rcvd: 108
Host info
136.252.220.121.in-addr.arpa domain name pointer cpe-121-220-252-136.bpw7-r-031.way.sa.bigpond.net.au.
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

Non-authoritative answer:
136.252.220.121.in-addr.arpa	name = cpe-121-220-252-136.bpw7-r-031.way.sa.bigpond.net.au.

Authoritative answers can be found from:
Related IP info:
Related comments:
IP Type Details Datetime
192.167.18.50 attackbotsspam
miraniessen.de 192.167.18.50 \[13/Jul/2019:01:15:40 +0200\] "POST /wp-login.php HTTP/1.1" 200 5972 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
miraniessen.de 192.167.18.50 \[13/Jul/2019:01:15:40 +0200\] "POST /wp-login.php HTTP/1.1" 200 5976 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
miraniessen.de 192.167.18.50 \[13/Jul/2019:01:15:40 +0200\] "POST /xmlrpc.php HTTP/1.1" 200 4043 "-" "Mozilla/5.0 \(X11\; Ubuntu\; Linux x86_64\; rv:62.0\) Gecko/20100101 Firefox/62.0"
2019-07-13 10:41:24
5.126.9.204 attackspambots
Unauthorized connection attempt from IP address 5.126.9.204 on Port 445(SMB)
2019-07-13 10:36:54
217.24.183.72 attackbotsspam
Unauthorized connection attempt from IP address 217.24.183.72 on Port 25(SMTP)
2019-07-13 10:27:39
27.50.24.83 attackbots
Jul 12 18:34:48 cac1d2 sshd\[8215\]: Invalid user berit from 27.50.24.83 port 35154
Jul 12 18:34:48 cac1d2 sshd\[8215\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=27.50.24.83
Jul 12 18:34:50 cac1d2 sshd\[8215\]: Failed password for invalid user berit from 27.50.24.83 port 35154 ssh2
...
2019-07-13 10:15:39
168.181.226.146 attackspam
failed_logins
2019-07-13 10:32:16
140.143.53.145 attack
SSH Brute Force, server-1 sshd[12916]: Failed password for invalid user jay from 140.143.53.145 port 53151 ssh2
2019-07-13 10:44:58
45.63.95.251 attack
WordPress brute force
2019-07-13 10:21:15
218.155.202.145 attackbots
Jul 12 17:10:56 home sshd[5209]: Invalid user system from 218.155.202.145 port 49196
Jul 12 17:10:57 home sshd[5209]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.155.202.145
Jul 12 17:10:56 home sshd[5209]: Invalid user system from 218.155.202.145 port 49196
Jul 12 17:10:58 home sshd[5209]: Failed password for invalid user system from 218.155.202.145 port 49196 ssh2
Jul 12 17:10:57 home sshd[5209]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.155.202.145
Jul 12 17:10:56 home sshd[5209]: Invalid user system from 218.155.202.145 port 49196
Jul 12 17:10:58 home sshd[5209]: Failed password for invalid user system from 218.155.202.145 port 49196 ssh2
Jul 12 19:05:02 home sshd[5518]: Invalid user cisco from 218.155.202.145 port 48382
Jul 12 19:05:02 home sshd[5518]: Invalid user cisco from 218.155.202.145 port 48382
...
2019-07-13 10:37:38
45.76.151.163 attackbots
WordPress brute force
2019-07-13 10:20:54
211.181.237.49 attackbotsspam
Unauthorized connection attempt from IP address 211.181.237.49 on Port 445(SMB)
2019-07-13 10:46:45
192.227.109.35 attackspam
Automatic report - Web App Attack
2019-07-13 10:38:42
82.114.241.138 attack
WordPress brute force
2019-07-13 10:09:56
46.163.169.84 attackspambots
Unauthorized connection attempt from IP address 46.163.169.84 on Port 445(SMB)
2019-07-13 10:18:36
31.165.112.245 attackspambots
Jul1221:57:14server6dovecot:imap-login:Disconnected\(authfailed\,1attemptsin2secs\):user=\\,method=PLAIN\,rip=31.165.112.245\,lip=81.17.25.250\,TLS:Connectionclosed\,session=\Jul1221:57:20server6dovecot:imap-login:Disconnected\(authfailed\,1attemptsin6secs\):user=\\,method=PLAIN\,rip=31.165.112.245\,lip=81.17.25.250\,TLS:Connectionclosed\,session=\2019-07-1221:58:04dovecot_plainauthenticatorfailedforxdsl-31-165-112-245.adslplus.ch\([IPv6:::ffff:192.168.1.29]\)[31.165.112.245]:50309:535Incorrectauthenticationdata\(set_id=g.brustolon@eleglatz.ch\)2019-07-1221:58:10dovecot_loginauthenticatorfailedforxdsl-31-165-112-245.adslplus.ch\([IPv6:::ffff:192.168.1.29]\)[31.165.112.245]:50309:535Incorrectauthenticationdata\(set_id=g.brustolon@eleglatz.ch\)2019-07-1221:58:17dovecot_plainauthenticatorfailedforxdsl-31-165-112-245.adslplus.ch\([IPv6:::ffff:192.168.1.29]\)[31.165.112.245]:50312:535Incorrectauthenticationdata\(set_id=g.brus
2019-07-13 10:24:02
202.146.215.20 attack
WordPress XMLRPC scan :: 202.146.215.20 0.348 BYPASS [13/Jul/2019:11:46:32  1000] [censored_1] "POST /xmlrpc.php HTTP/1.1" 503 21351 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
2019-07-13 10:32:43

Recently Reported IPs

2606:4700:10::ac43:872 2606:4700:10::6814:7364 2606:4700:10::6816:2183 2606:4700:10::6814:5848
20.81.46.136 2606:4700:10::6816:2528 2606:4700:10::6814:7655 2606:4700:10::6816:4029
2606:4700:10::ac43:2001 2606:4700:10::6814:5060 2606:4700:10::6814:4710 2606:4700:10::ac43:1724
39.98.173.84 47.92.248.107 47.92.93.49 122.193.247.187
2606:4700:10::6814:5433 121.230.89.195 2606:4700:10::6814:7836 2606:4700:10::6816:2138