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 1.88.36-SNAPSHOT (WHOIS-AU5)
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 121.220.252.170
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 41159
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;121.220.252.170.		IN	A

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

;; Query time: 6 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sat Mar 07 22:01:01 CST 2026
;; MSG SIZE  rcvd: 108
Host info
170.252.220.121.in-addr.arpa domain name pointer cpe-121-220-252-170.bpw7-r-031.way.sa.bigpond.net.au.
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

Non-authoritative answer:
170.252.220.121.in-addr.arpa	name = cpe-121-220-252-170.bpw7-r-031.way.sa.bigpond.net.au.

Authoritative answers can be found from:
Related IP info:
Related comments:
IP Type Details Datetime
168.195.223.52 attackspam
Invalid user news from 168.195.223.52 port 52854
2020-03-14 08:07:44
200.107.241.50 attackbotsspam
2020-03-13 22:13:02 H=\(Host-200-107-241-50.cotes.net.bo\) \[200.107.241.50\]:27283 I=\[193.107.88.166\]:25 F=\ rejected RCPT \: Sender verify failed
2020-03-13 22:13:28 H=\(Host-200-107-241-50.cotes.net.bo\) \[200.107.241.50\]:12693 I=\[193.107.88.166\]:25 F=\ rejected RCPT \: Sender verify failed
2020-03-13 22:13:46 H=\(Host-200-107-241-50.cotes.net.bo\) \[200.107.241.50\]:2664 I=\[193.107.88.166\]:25 F=\ rejected RCPT \: Sender verify failed
...
2020-03-14 08:27:02
222.186.52.86 attackspam
Mar 13 20:32:41 ny01 sshd[22311]: Failed password for root from 222.186.52.86 port 39509 ssh2
Mar 13 20:32:43 ny01 sshd[22311]: Failed password for root from 222.186.52.86 port 39509 ssh2
Mar 13 20:32:46 ny01 sshd[22311]: Failed password for root from 222.186.52.86 port 39509 ssh2
2020-03-14 08:36:15
106.12.208.118 attackspambots
SSH brute-force attempt
2020-03-14 08:29:55
206.189.156.198 attackbotsspam
SASL PLAIN auth failed: ruser=...
2020-03-14 08:38:36
222.186.173.238 attack
Mar 14 01:08:16 vps691689 sshd[8017]: Failed password for root from 222.186.173.238 port 37916 ssh2
Mar 14 01:08:29 vps691689 sshd[8017]: error: maximum authentication attempts exceeded for root from 222.186.173.238 port 37916 ssh2 [preauth]
...
2020-03-14 08:10:16
200.209.145.251 attackbots
Scanned 3 times in the last 24 hours on port 22
2020-03-14 08:44:31
180.76.173.75 attackspambots
Mar 11 21:57:55 cumulus sshd[12601]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.76.173.75  user=r.r
Mar 11 21:57:57 cumulus sshd[12601]: Failed password for r.r from 180.76.173.75 port 39610 ssh2
Mar 11 21:57:58 cumulus sshd[12601]: Received disconnect from 180.76.173.75 port 39610:11: Bye Bye [preauth]
Mar 11 21:57:58 cumulus sshd[12601]: Disconnected from 180.76.173.75 port 39610 [preauth]
Mar 11 22:05:32 cumulus sshd[12988]: Connection closed by 180.76.173.75 port 33064 [preauth]
Mar 11 22:07:47 cumulus sshd[13093]: Invalid user uno85 from 180.76.173.75 port 33348
Mar 11 22:07:47 cumulus sshd[13093]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.76.173.75
Mar 11 22:07:48 cumulus sshd[13093]: Failed password for invalid user uno85 from 180.76.173.75 port 33348 ssh2
Mar 11 22:07:49 cumulus sshd[13093]: Received disconnect from 180.76.173.75 port 33348:11: Bye Bye [preauth]
Ma........
-------------------------------
2020-03-14 08:52:22
139.59.0.90 attackspambots
SSH brute force
2020-03-14 08:23:00
139.59.235.149 attackbots
xmlrpc attack
2020-03-14 08:45:39
198.96.155.3 attackbotsspam
Invalid user cdr from 198.96.155.3 port 50553
2020-03-14 08:38:18
27.106.115.206 attackspam
20/3/13@17:14:04: FAIL: Alarm-Network address from=27.106.115.206
...
2020-03-14 08:13:09
46.239.31.35 attackspam
Port probing on unauthorized port 88
2020-03-14 08:40:28
77.247.110.96 attack
[2020-03-13 20:48:48] NOTICE[1148][C-00011695] chan_sip.c: Call from '' (77.247.110.96:57601) to extension '5472001148178599012' rejected because extension not found in context 'public'.
[2020-03-13 20:48:48] SECURITY[1163] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-03-13T20:48:48.642-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="5472001148178599012",SessionID="0x7fd82c40d3d8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/77.247.110.96/57601",ACLName="no_extension_match"
[2020-03-13 20:48:50] NOTICE[1148][C-00011696] chan_sip.c: Call from '' (77.247.110.96:63574) to extension '7206601148343508004' rejected because extension not found in context 'public'.
[2020-03-13 20:48:50] SECURITY[1163] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-03-13T20:48:50.902-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="7206601148343508004",SessionID="0x7fd82ca712e8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAd
...
2020-03-14 08:50:30
192.241.239.139 attack
port scan and connect, tcp 3128 (squid-http)
2020-03-14 08:09:37

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