203.52.0.0/15

AS1221  ·  Telstra Limited

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Summary

Country Australia
Domain telstra.net
ASN AS1221
Registry APNIC
ID TELSTRAINTERNET4-AU

WHOIS Details

inetnum:        203.52.0.0 - 203.53.255.255
netname:        TELSTRAINTERNET4-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:        ------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-AU-TIAR-AP
mnt-routes:     MAINT-AU-TIAR-AP
mnt-irt:        IRT-TELSTRA-AU
last-modified:  2024-05-10T00:50:23Z
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:          203.52.0.0/15
origin:         AS1221
descr:          Telstra Corporation 242 Exhibition Street
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2019-12-11T21:09:32Z
source:         APNIC

route:          203.52.0.0/15
origin:         AS19905
descr:          Telstra Corporation Limited 242 Exhibition Street
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2022-09-12T02:35:05Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.0.0.0/8

Range ASN Company Num of IPs
203.40.0.0/13 AS1221 Telstra Limited 524,288
203.36.0.0/14 AS1221 Telstra Limited 262,144
203.48.0.0/14 AS1221 Telstra Limited 262,144
203.102.0.0/15 AS703 Verizon Australia PTY Limited 131,072
203.219.0.0/16 AS7545 TPG Internet Pty Ltd. 65,536
203.75.0.0/16 AS3462 Data Communication Business Group, 65,536
203.155.0.0/16 AS17478 KSC Commercial Internet Co. Ltd. 65,536
203.231.0.0/16 AS9684 SEJONG NETWORKS 65,536
203.162.0.0/16 AS7643 Vietnam Posts and Telecommunications Group 65,536
203.177.0.0/16 AS24451 Globe Telecom 65,536
203.74.0.0/16 AS3462 Data Communication Business Group, 65,536
203.177.0.0/16 AS24179 Globe Telecom 65,536
203.177.0.0/16 AS132199 Globe Telecom 65,536
203.227.0.0/16 AS9848 SEJONG NETWORKS 65,536
203.108.0.0/16 AS703 OzEmail Pty Ltd 65,536
203.138.0.0/16 AS2514 NTT PC Communications,Inc. 65,536
203.61.0.0/16 AS703 Verizon Australia PTY Limited 65,536
203.200.0.0/16 AS40009 Internet Service Provider 65,536
203.59.0.0/16 AS7545 iiNet Limited 65,536
203.155.0.0/16 AS7693 KSC Commercial Internet Co. Ltd. 65,536
203.224.0.0/16 AS9273 ITCENENTEC CO.,LTD. 65,536
203.177.0.0/16 AS17894 Globe Telecom 65,536
203.106.0.0/16 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 65,536
203.162.0.0/16 AS45899 Vietnam Posts and Telecommunications Group 65,536
203.231.0.0/16 AS17881 SEJONG NETWORKS 65,536
203.66.0.0/16 AS3462 Data Communication Business Group, 65,536
203.227.0.0/16 AS23584 SEJONG NETWORKS 65,536
203.59.0.0/16 AS4802 iiNet Limited 65,536
203.125.0.0/16 AS3758 SingNet Pte Ltd 65,536
203.206.0.0/16 AS7545 iiNet Limited 65,536
203.35.0.0/16 AS1221 Telstra Limited 65,536
203.85.0.0/16 AS4058 CITIC Telecom International CPC Limited 65,536
203.151.0.0/16 AS133529 Internet Thailand Company Limited 65,536
203.54.0.0/16 AS1221 Telstra Limited 65,536
203.68.0.0/16 AS1659 Taiwan Academic Network 65,536
203.64.0.0/16 AS1659 Taiwan Academic Network 65,536
203.231.0.0/16 AS9848 SEJONG NETWORKS 65,536
203.108.0.0/16 AS12234 OzEmail Pty Ltd 65,536
203.69.0.0/16 AS3462 Data Communication Business Group, 65,536
203.200.0.0/16 AS4755 Internet Service Provider 65,536
203.74.0.0/16 AS131660 Data Communication Business Group, 65,536
203.157.0.0/16 AS9649 Ministry of Public Health, Thailand 65,536
203.227.0.0/16 AS9973 SEJONG NETWORKS 65,536
203.180.0.0/16 AS2497 Internet Initiative Japan Inc. 65,536
203.206.0.0/16 AS4739 iiNet Limited 65,536
203.67.0.0/16 AS4780 Digital United Inc. 65,536
203.151.0.0/16 AS56223 Internet Thailand Company Limited 65,536
203.59.0.0/16 AS4739 iiNet Limited 65,536
203.69.0.0/16 AS137280 Data Communication Business Group, 65,536

Hosted domains

There are 230 domain names hosted across 57 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
203.53.155.74 eastcoastwinetrail.com.au 74
203.52.242.18 zepiro.tech 22
203.53.139.210 lazercouriers.com.au 16
203.53.241.97 dhs.vic.gov.au 14
203.52.122.162 wallabyholidayhomes.com.au 14
203.52.55.226 infoware.com.au 10
203.53.66.94 disclosureaus.com.au 4
203.53.74.182 frankview.com.au 4
203.52.111.174 reiforms.com.au 4
203.52.122.165 fanstore.com.au 4
203.52.62.217 polyunderfoot.com.au 3
203.52.190.217 globusfamily.co.kr 3
203.53.17.22 barossabottling.com.au 3
203.52.42.126 simplytechnical.com.au 3
203.53.97.4 northews.com.au 2
203.52.228.210 westrac.com 2
203.53.97.5 montaine.com.au 2
203.52.113.248 yarrawonganewsagency.com.au 2
203.53.155.145 psiglobal.com.au 2
203.53.190.248 devocean.net 2

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

1,599 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
203.53.51.81 AS1221 Telstra Limited 1.39ms from Brisbane, AU
203.52.146.25 AS1221 Telstra Limited 1.47ms from Melbourne, AU
203.52.254.177 AS1221 Telstra Limited 1.66ms from Melbourne, AU
203.52.215.121 AS1221 Telstra Limited 0.65ms from Sydney, AU
203.52.217.78 AS1221 Telstra Limited 2.19ms from Sydney, AU
203.53.7.65 AS1221 Telstra Limited 0.76ms from Sydney, AU
203.52.27.130 AS1221 Telstra Limited 1.50ms from Brisbane, AU
203.52.219.58 AS1221 Telstra Limited 1.30ms from Melbourne, AU
203.52.178.20 AS1221 Telstra Limited 1.29ms from Perth, AU
203.52.181.161 AS1221 Telstra Limited 9.18ms from Sydney, AU
203.53.103.72 AS1221 Telstra Limited 1.30ms from Sydney, AU
203.52.235.46 AS1221 Telstra Limited 1.08ms from Sydney, AU
203.53.8.113 AS1221 Telstra Limited 6.58ms from Melbourne, AU
203.53.30.194 AS1221 Telstra Limited 1.46ms from Melbourne, AU
203.52.227.24 AS1221 Telstra Limited 2.47ms from Melbourne, AU
203.53.76.160 AS1221 Telstra Limited 0.62ms from Perth, AU
203.53.70.82 AS1221 Telstra Limited 1.30ms from Perth, AU
203.52.135.25 AS1221 Telstra Limited 1.27ms from Sydney, AU
203.52.95.121 AS1221 Telstra Limited 3.75ms from Melbourne, AU
203.52.114.85 AS1221 Telstra Limited 1.87ms from Melbourne, AU
203.53.57.193 AS1221 Telstra Limited 1.49ms from Perth, AU
203.52.237.198 AS1221 Telstra Limited 1.49ms from Perth, AU
203.52.100.65 AS1221 Telstra Limited 0.96ms from Sydney, AU
203.53.104.143 AS1221 Telstra Limited 0.36ms from Sydney, AU
203.52.87.42 AS1221 Telstra Limited 1.01ms 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
161.8.143.63 AS6079 RCN 1.56ms from Ashburn, US
181.86.236.127 AS7303 Telecom Argentina S.A. 1.62ms from Buenos Aires, AR
102.221.207.255 AS328750 Access Technology Consultants (PTY) LTD 0.70ms from Durban, ZA
149.113.163.255 AS23700 Linknet-Fastnet ASN 1.11ms from Jakarta, ID
34.6.94.111 AS396982 Google LLC 0.11ms from Oudeschip, NL
107.121.237.95 AS7287 AT&T Enterprises, LLC 1.65ms from Seattle, US
119.194.195.127 AS4766 Korea Telecom 1.68ms from Seoul, KR
154.243.102.111 AS36947 Telecom Algeria 11.93ms from Algiers, DZ
128.220.160.207 AS5723 Johns Hopkins University 4.13ms from Ashburn, US
47.160.69.159 AS5650 Frontier Communications of America, Inc. 7.22ms from Dallas, US
34.241.168.207 AS16509 Amazon.com, Inc. 0.15ms from Dublin, IE
113.13.59.255 AS4134 CHINANET-BACKBONE 14.01ms from Guiyang, CN
1.95.154.175 AS55990 Huawei Cloud Service data center 0.96ms from Guiyang, CN
1.251.62.111 AS9318 SK Broadband Co Ltd 4.55ms from Incheon, KR
119.154.44.223 AS17557 Pakistan Telecommunication Company Limited 1.37ms from Islamabad, PK
191.205.193.191 AS26599 TELEFÔNICA BRASIL S.A 5.39ms from Osasco, BR
45.187.10.223 AS269460 NEW NET LG SOLUCOES TELECOMUNICACOES E INFORMATICA 8.65ms from Osasco, BR
18.205.187.95 AS14618 Amazon.com, Inc. 0.20ms from Reston, US
115.17.229.159 AS4766 Korea Telecom 9.41ms from Seoul, KR
180.65.250.15 AS9318 SK Broadband Co Ltd 6.33ms from Seoul, KR
141.193.221.255 AS54037 DCA LLC 16.31ms from St. Louis, US
89.58.75.223 AS44656 2provide GmbH 1.25ms from Frankfurt am Main, DE
123.207.231.79 AS45090 Shenzhen Tencent Computer Systems Company Limited 2.55ms from Guangzhou, CN
183.129.148.175 AS4134 CHINANET-BACKBONE 4.48ms from Hangzhou, CN
23.9.27.31 AS16625 Akamai Technologies, Inc. 9.70ms from Hyderabad, IN

Traceroute

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

$
traceroute -a -n -q1 -f3 -m15 203.52.48.49
traceroute to 203.52.48.49 (203.52.48.49): 15 hops max, 52 byte packets
3 [AS8966] 5.195.70.164 13.078 ms
4 [AS8966] 195.229.0.101 4.556 ms
6 *
7 [AS4637] 202.84.140.105 122.265 ms
8 [AS1221] 203.50.9.12 123.209 ms
9 [AS1221] 203.50.6.236 153.059 ms
10 [AS1221] 203.50.6.122 162.517 ms
11 [AS1221] 203.50.13.124 162.143 ms
12 [AS1221] 203.50.13.132 177.501 ms
13 *
14 *
15 *
Measurement taken from IPinfo ProbeNet in Al Fujairah City, AE
On

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