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 AS38122 Korea Telecom 2,097,152
121.128.0.0/11 AS18333 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
121.128.0.0/11 AS17588 Korea Telecom 2,097,152
121.160.0.0/11 AS4766 Korea Telecom 2,097,152
121.128.0.0/11 AS9856 Korea Telecom 2,097,152
121.128.0.0/11 AS9647 Korea Telecom 2,097,152
121.160.0.0/11 AS38089 Korea Telecom 2,097,152
121.224.0.0/12 AS134770 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 AS4134 CHINANET jiangsu province network 1,048,576
121.224.0.0/12 AS140292 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 AS137702 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 AS134756 CHINANET jiangsu province network 1,048,576
121.8.0.0/13 AS135089 CHINANET Guangdong province network 524,288
121.8.0.0/13 AS4134 CHINANET Guangdong province network 524,288
121.8.0.0/13 AS140308 CHINANET Guangdong province network 524,288
121.8.0.0/13 AS136199 CHINANET Guangdong province network 524,288
121.112.0.0/13 AS4713 NTT DOCOMO BUSINESS,Inc. 524,288
121.16.0.0/13 AS4837 China Unicom Hebei province network 524,288
121.24.0.0/14 AS4837 China Unicom Hebei province network 262,144
121.248.0.0/14 AS4538 China Education and Research Network 262,144
121.64.0.0/14 AS17598 LG DACOM Corporation 262,144
121.64.0.0/14 AS17586 LG DACOM Corporation 262,144
121.64.0.0/14 AS3786 LG DACOM Corporation 262,144
121.60.0.0/14 AS4134 CHINANET Hubei province network 262,144
121.64.0.0/14 AS23555 LG DACOM Corporation 262,144
121.40.0.0/14 AS37963 Aliyun Computing Co., LTD 262,144
121.80.0.0/14 AS17511 OPTAGE Inc. 262,144
121.204.0.0/14 AS133775 CHINANET Fujian province network 262,144
121.204.0.0/14 AS133774 CHINANET Fujian province network 262,144
121.204.0.0/14 AS4134 CHINANET Fujian province network 262,144
121.32.0.0/14 AS4134 CHINANET Guangdong province network 262,144
121.84.0.0/14 AS17511 OPTAGE Inc. 262,144
121.204.0.0/14 AS133776 CHINANET Fujian province network 262,144
121.60.0.0/14 AS148981 CHINANET Hubei province network 262,144
121.196.0.0/14 AS37963 Aliyun Computing Co., LTD 262,144
121.60.0.0/14 AS137266 CHINANET Hubei province network 262,144
121.2.0.0/15 AS2527 Sony Network Communications Inc. 131,072
121.4.0.0/15 AS132203 Tencent cloud computing (Beijing) Co., Ltd. 131,072
121.4.0.0/15 AS45090 Tencent cloud computing (Beijing) Co., Ltd. 131,072
121.56.0.0/15 AS4134 CHINANET neimeng province network 131,072
121.96.0.0/15 AS6648 Bayan Telecommunications Incorporated 131,072
121.76.0.0/15 AS9812 Oriental Cable Network Co., Ltd. 131,072
121.202.0.0/15 AS17924 SmarTone Mobile Communications Ltd 131,072
121.98.0.0/15 AS9790 Two Degrees Mobile Limited 131,072

Hosted domains

There are 185 domain names hosted across 143 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 absolutecoders.com 15
121.223.192.28 jennyphillips.site 8
121.210.154.4 hometablets.com.au 6
121.223.192.253 kay.net.au 4
121.216.165.44 deepcore.dev 3
121.209.36.58 media-hq.com 3
121.217.9.252 administrativeaid.com 2
121.222.91.108 chenyun.org 2
121.214.232.130 outlineview.com.au 2
121.212.230.157 wareonline.com.au 2
121.213.252.195 harbaskin.com 2
121.214.224.102 statuscomputers.com.au 2
121.223.194.142 melbourneprojectband.com.au 2
121.223.193.235 hydrasolutions.com.au 2
121.211.111.96 opsintegrate.com.au 2
121.215.212.151 johnbews.com 2
121.211.88.147 vk3bhr.com 1
121.221.198.166 pacificmail.org 1
121.213.245.40 sevenseasseafoods.com.au 1
121.213.180.77 squishsquelchsquash.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

1,694 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
121.208.77.88 AS1221 Telstra Limited 22.30ms from Brisbane, AU
121.208.83.109 AS1221 Telstra Limited 17.03ms from Brisbane, AU
121.208.80.159 AS1221 Telstra Limited 28.41ms from Brisbane, AU
121.208.76.84 AS1221 Telstra Limited 17.52ms from Brisbane, AU
121.208.92.17 AS1221 Telstra Limited 23.65ms from Brisbane, AU
121.208.95.252 AS1221 Telstra Limited 18.70ms from Brisbane, AU
121.208.79.32 AS1221 Telstra Limited 17.72ms from Brisbane, AU
121.208.88.187 AS1221 Telstra Limited 17.10ms from Brisbane, AU
121.208.86.48 AS1221 Telstra Limited 17.37ms from Brisbane, AU
121.208.94.82 AS1221 Telstra Limited 17.23ms from Brisbane, AU
121.208.127.254 AS1221 Telstra Limited 17.06ms from Brisbane, AU
121.208.67.68 AS1221 Telstra Limited 29.04ms from Brisbane, AU
121.208.96.160 AS1221 Telstra Limited 17.50ms from Brisbane, AU
121.208.90.247 AS1221 Telstra Limited 17.26ms from Brisbane, AU
121.208.91.62 AS1221 Telstra Limited 16.86ms from Brisbane, AU
121.208.71.86 AS1221 Telstra Limited 18.77ms from Brisbane, AU
121.208.93.75 AS1221 Telstra Limited 60.40ms from Brisbane, AU
121.208.64.149 AS1221 Telstra Limited 27.43ms from Sydney, AU
121.208.73.28 AS1221 Telstra Limited 17.27ms from Brisbane, AU
121.208.84.137 AS1221 Telstra Limited 16.93ms from Brisbane, AU
121.208.69.100 AS1221 Telstra Limited 18.69ms from Brisbane, AU
121.208.65.186 AS1221 Telstra Limited 30.96ms from Brisbane, AU
121.208.70.218 AS1221 Telstra Limited 46.07ms from Brisbane, AU
121.208.66.92 AS1221 Telstra Limited 28.83ms from Brisbane, AU
121.208.87.178 AS1221 Telstra Limited 17.52ms from Brisbane, 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
20.107.109.60 AS8075 Microsoft Corporation 0.31ms from Amsterdam, NL
80.107.58.156 AS6799 Ote SA (Hellenic Telecommunications Organisation) 10.58ms from Athens, GR
81.88.167.220 AS15766 Domicilium (IOM) Limited 0.21ms from Ballasalla, IM
197.164.254.156 AS24863 Link Egypt (Link.NET) 11.32ms from Cairo, EG
34.71.24.92 AS396982 Google LLC 0.10ms from Council Bluffs, US
217.243.248.28 AS3320 Deutsche Telekom AG 1.30ms from Duesseldorf, DE
217.30.127.172 AS12703 Pulsant (Scotland) Ltd 0.52ms from Edinburgh, GB
91.89.98.188 AS3209 Vodafone GmbH 6.20ms from Frankfurt am Main, DE
2.166.4.204 AS3320 Deutsche Telekom AG 13.40ms from Hamburg, DE
97.220.182.172 AS6167 Verizon Business 16.99ms from Miami, US
91.221.252.12 AS52131 CITY.NET LLC 17.13ms from Moscow, RU
71.185.188.12 AS701 Verizon Business 1.83ms from Philadelphia, US
98.80.213.60 AS14618 Amazon.com, Inc. 0.20ms from Reston, US
181.213.114.188 AS28573 Claro NXT Telecomunicacoes Ltda 18.80ms from Rio de Janeiro, BR
85.43.246.252 AS3269 Telecom Italia S.p.A. 1.97ms from Rome, IT
185.112.37.172 AS43754 Asiatech Data Transmission company 16.93ms from Yerevan, AM
20.229.88.44 AS8075 Microsoft Corporation 0.23ms from Amsterdam, NL
66.223.210.92 AS8047 GENERAL COMMUNICATION, INC. 7.88ms from Anchorage, US
14.98.43.76 AS45820 Tata Teleservices ISP AS 2.02ms from Chennai, IN
128.10.21.252 AS17 Purdue University 5.81ms from Chicago, US
149.202.160.220 AS16276 OVH SAS 0.14ms from Gravelines, FR
14.167.230.220 AS45899 VNPT Corp 4.14ms from Ho Chi Minh City, VN
171.233.237.140 AS7552 Viettel Group 1.02ms from Ho Chi Minh City, VN
47.180.74.60 AS5650 Frontier Communications of America, Inc. 1.47ms from Los Angeles, US
185.73.99.204 AS42947 Telfy Telecom S.L. 7.36ms from Madrid, ES

Traceroute

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

$
traceroute -a -n -q1 -m7 121.220.110.93
traceroute to 121.220.110.93 (121.220.110.93): 7 hops max, 52 byte packets
1 [AS15169] 66.249.94.19 141.93 ms
2 [AS15169] 192.178.97.154 143.574 ms
3 *
4 [AS1221] 203.50.11.172 144.574 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Las Vegas, US
On

What are IP address ranges?

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