121.208.0.0/12

AS1221  ·  Telstra Limited

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Summary

Country Australia
Domain telstra.net
ASN AS1221
Registry APNIC
ID TELSTRAINTERNET45-AU

WHOIS Details

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 2025-07-15
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2025-11-18T00:26:24Z
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 2025-07-15
abuse-mailbox:  abuse@telstra.net
mnt-by:         APNIC-ABUSE
last-modified:  2025-07-15T22:43:15Z
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

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

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

Nearby Ranges

BGP prefixes that overlap with 121.0.0.0/8

Range ASN Company Num of IPs
121.128.0.0/11 AS18333 Korea Telecom 2,097,152
121.128.0.0/11 AS38122 Korea Telecom 2,097,152
121.128.0.0/11 AS9647 Korea Telecom 2,097,152
121.128.0.0/11 AS17588 Korea Telecom 2,097,152
121.128.0.0/11 AS9856 Korea Telecom 2,097,152
121.160.0.0/11 AS23582 Korea Telecom 2,097,152
121.128.0.0/11 AS4766 Korea Telecom 2,097,152
121.160.0.0/11 AS4766 Korea Telecom 2,097,152
121.160.0.0/11 AS38089 Korea Telecom 2,097,152
121.224.0.0/12 AS140292 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS134770 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS134756 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS137697 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS146966 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS4134 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS137699 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS137702 CHINANET jiangsu province network 1,048,576
121.8.0.0/13 AS135089 CHINANET Guangdong province network 524,288
121.8.0.0/13 AS140308 CHINANET Guangdong province network 524,288
121.8.0.0/13 AS4134 CHINANET Guangdong province network 524,288
121.8.0.0/13 AS136199 CHINANET Guangdong province network 524,288
121.16.0.0/13 AS4837 China Unicom Hebei province network 524,288
121.112.0.0/13 AS4713 NTT DOCOMO BUSINESS,Inc. 524,288
121.64.0.0/14 AS17598 LG DACOM Corporation 262,144
121.64.0.0/14 AS23555 LG DACOM Corporation 262,144
121.60.0.0/14 AS4134 CHINANET Hubei province network 262,144
121.64.0.0/14 AS17586 LG DACOM Corporation 262,144
121.32.0.0/14 AS4134 CHINANET Guangdong province network 262,144
121.204.0.0/14 AS4134 CHINANET Fujian province network 262,144
121.80.0.0/14 AS17511 OPTAGE Inc. 262,144
121.204.0.0/14 AS133776 CHINANET Fujian province network 262,144
121.204.0.0/14 AS133775 CHINANET Fujian province network 262,144
121.64.0.0/14 AS3786 LG DACOM Corporation 262,144
121.84.0.0/14 AS17511 OPTAGE Inc. 262,144
121.60.0.0/14 AS148981 CHINANET Hubei province network 262,144
121.40.0.0/14 AS37963 Aliyun Computing Co., LTD 262,144
121.60.0.0/14 AS137266 CHINANET Hubei province network 262,144
121.24.0.0/14 AS4837 China Unicom Hebei province network 262,144
121.204.0.0/14 AS133774 CHINANET Fujian province network 262,144
121.196.0.0/14 AS37963 Aliyun Computing Co., LTD 262,144
121.248.0.0/14 AS4538 China Education and Research Network 262,144
121.48.0.0/15 AS4538 China Education and Research Network 131,072
121.76.0.0/15 AS9812 Oriental Cable Network Co., Ltd. 131,072
121.98.0.0/15 AS9790 Two Degrees Mobile Limited 131,072
121.44.0.0/15 AS7545 iiNet Limited 131,072
121.124.0.0/15 AS9318 SK Broadband Co Ltd 131,072
121.194.0.0/15 AS4538 China Education and Research Network 131,072
121.28.0.0/15 AS4837 China Unicom Hebei province network 131,072
121.4.0.0/15 AS45090 Tencent cloud computing (Beijing) Co., Ltd. 131,072

Hosted domains

There are 185 domain names hosted across 147 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
121.211.178.190 ezycatch.com 15
121.223.192.28 onshu.com.au 8
121.210.154.4 hometablets.com.au 6
121.223.192.253 kay.net.au 4
121.216.165.44 decduck3.com 3
121.209.36.58 php-hq.com 3
121.215.212.151 johnbews.com 2
121.212.230.157 wareonline.org 2
121.211.111.96 opsintegrate.com 2
121.213.252.195 harbaskin.com 2
121.222.91.108 chenjingtian.cn 2
121.214.232.130 chrpa.au 2
121.217.9.252 administrativeaid.com.au 2
121.223.193.235 hydrasolutions.com.au 2
121.223.194.142 melbourneprojectband.com.au 2
121.208.64.150 travdashark.net 1
121.208.102.81 tmrcors.org 1
121.218.227.187 mjswon.de 1
121.208.221.127 plummashable.com 1
121.223.198.181 playerstrophy.com 1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity

Pingable IPs

1,601 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
121.222.95.149 AS1221 Telstra Limited 7.92ms from Brisbane, AU
121.221.241.80 AS1221 Telstra Limited 7.06ms from Melbourne, AU
121.221.193.106 AS1221 Telstra Limited 4.57ms from Melbourne, AU
121.221.149.135 AS1221 Telstra Limited 2.24ms from Melbourne, AU
121.223.197.7 AS1221 Telstra Limited 2.82ms from Melbourne, AU
121.221.240.55 AS1221 Telstra Limited 2.58ms from Melbourne, AU
121.222.103.20 AS1221 Telstra Limited 9.56ms from Brisbane, AU
121.222.111.172 AS1221 Telstra Limited 1.64ms from Brisbane, AU
121.222.107.156 AS1221 Telstra Limited 4.21ms from Brisbane, AU
121.221.192.167 AS1221 Telstra Limited 2.95ms from Melbourne, AU
121.221.141.4 AS1221 Telstra Limited 2.19ms from Melbourne, AU
121.222.72.56 AS1221 Telstra Limited 2.76ms from Brisbane, AU
121.222.96.212 AS1221 Telstra Limited 3.58ms from Brisbane, AU
121.221.143.155 AS1221 Telstra Limited 1.73ms from Melbourne, AU
121.221.132.209 AS1221 Telstra Limited 1.30ms from Melbourne, AU
121.221.207.254 AS1221 Telstra Limited 1.40ms from Melbourne, AU
121.223.193.176 AS1221 Telstra Limited 2.16ms from Melbourne, AU
121.221.255.254 AS1221 Telstra Limited 1.16ms from Melbourne, AU
121.222.113.219 AS1221 Telstra Limited 6.44ms from Brisbane, AU
121.221.139.112 AS1221 Telstra Limited 1.76ms from Melbourne, AU
121.221.151.118 AS1221 Telstra Limited 3.06ms from Melbourne, AU
121.221.247.34 AS1221 Telstra Limited 5.86ms from Melbourne, AU
121.222.92.119 AS1221 Telstra Limited 4.08ms from Brisbane, AU
121.222.106.147 AS1221 Telstra Limited 9.24ms from Brisbane, AU
121.221.242.151 AS1221 Telstra Limited 3.15ms from Melbourne, AU

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
117.255.33.236 AS9829 National Internet Backbone 5.76ms from Delhi, IN
209.93.6.108 AS6871 Plusnet 3.62ms from London, GB
220.106.118.92 AS4713 NTT DOCOMO BUSINESS,Inc. 4.28ms from Osaka, JP
87.88.194.12 AS5410 Bouygues Telecom SA 1.31ms from Paris, FR
107.175.53.156 AS36352 HostPapa 0.26ms from Santa Clara, US
175.194.30.172 AS4766 Korea Telecom 1.94ms from Seoul, KR
123.215.65.188 AS9318 SK Broadband Co Ltd 3.49ms from Seoul, KR
36.137.181.92 AS9808 China Mobile Communications Group Co., Ltd. 0.46ms from Shanghai, CN
209.166.185.156 AS17054 Expedient 0.29ms from South Bend, US
212.92.216.236 AS35549 A1 Hrvatska d.o.o. 0.67ms from Zagreb, HR
20.107.109.60 AS8075 Microsoft Corporation 0.30ms from Amsterdam, NL
100.52.98.76 AS14618 Amazon.com, Inc. 0.72ms from Ashburn, US
49.191.14.92 AS4804 Microplex PTY LTD 9.87ms from Brisbane, AU
91.89.98.188 AS3209 Vodafone GmbH 7.41ms from Frankfurt am Main, DE
94.165.206.156 AS1267 WIND TRE S.P.A. 11.62ms from Milan, IT
78.36.9.188 AS12389 PJSC Rostelecom 2.04ms from Murmansk, RU
86.212.236.12 AS3215 Orange S.A. 16.09ms from Paris, FR
27.215.232.172 AS4837 CHINA UNICOM China169 Backbone 6.86ms from Qingdao, CN
54.215.18.124 AS16509 Amazon.com, Inc. 0.13ms from San Jose, US
115.143.168.140 AS17858 LG POWERCOMM 2.29ms from Seoul, KR
123.158.126.124 AS4837 CHINA UNICOM China169 Backbone 6.16ms from Shanghai, CN
180.72.184.60 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 5.46ms from Singapore, SG
126.89.49.172 AS17676 SoftBank Corp. 2.94ms from Tokyo, JP
39.170.203.124 AS56041 China Mobile communications corporation 5.57ms from Hangzhou, CN
102.37.210.12 AS8075 Microsoft Corporation 0.15ms from Johannesburg, ZA

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 121.222.110.198
traceroute to 121.222.110.198 (121.222.110.198): 64 hops max, 52 byte packets
3 *
4 *
5 *
6 *
8 [AS1221] 203.50.11.242 3.685 ms
9 [AS1221] 203.50.61.17 1.006 ms
Measurement taken from IPinfo ProbeNet in Brisbane, AU
On

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