203.58.128.0/17

AS1221  ·  Telstra Limited

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Summary

Country Australia
Domain telstra.net
ASN AS1221
Registry APNIC
ID TELSTRAINTERNET8-AU

WHOIS Details

inetnum:        203.58.128.0 - 203.58.255.255
netname:        TELSTRAINTERNET8-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 [email protected]
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:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        TIAR-AP
tech-c:         TIAR-AP
auth:           # Filtered
remarks:        [email protected] 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:         [email protected]
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:         [email protected]
admin-c:        TIAR-AP
tech-c:         TIAR-AP
nic-hdl:        AT1005-AP
remarks:        Generated from irt object IRT-TELSTRA-AU
remarks:        [email protected] was validated on 2025-07-15
abuse-mailbox:  [email protected]
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:         [email protected]
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:         [email protected]
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:          203.58.128.0/17
origin:         AS1221
descr:          Telstra Corporation 242 Exhibition Street
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2019-12-11T21:09:39Z
source:         APNIC

route:          203.58.128.0/17
origin:         AS19905
descr:          Telstra Corporation Limited 242 Exhibition Street
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2022-09-12T02:36:56Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.58.0.0/16

Range ASN Company Num of IPs
203.58.64.0/18 AS1221 Telstra Limited 16,384
203.58.32.0/19 AS1221 Telstra Limited 8,192
203.58.0.0/19 AS7545 TPG Internet Pty Ltd. 8,192

Hosted domains

There are 13 domain names hosted across 10 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
203.58.170.154 rav.vic.gov.au 2
203.58.157.170 tattscasino.com.au 2
203.58.157.249 tattslottos.com.au 2
203.58.166.24 autoledgers.com.au 1
203.58.219.129 swickers.com.au 1
203.58.224.107 avemportal.com.au 1
203.58.190.50 rcsystems.net.au 1
203.58.197.251 wharton-jones.com 1
203.58.224.72 e-com.com.au 1
203.58.219.226 stylevue.com.au 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

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

IP Address ASN Details
203.58.247.168 AS1221 Telstra Limited 1.32ms from Melbourne, AU
203.58.237.173 AS1221 Telstra Limited 0.88ms from Brisbane, AU
203.58.254.41 AS1221 Telstra Limited 1.30ms from Melbourne, AU
203.58.179.121 AS1221 Telstra Limited 1.03ms from Melbourne, AU
203.58.210.71 AS1221 Telstra Limited 5.76ms from Sydney, AU
203.58.223.154 AS1221 Telstra Limited 1.53ms from Brisbane, AU
203.58.165.113 AS1221 Telstra Limited 1.00ms from Brisbane, AU
203.58.191.9 AS1221 Telstra Limited 0.95ms from Sydney, AU
203.58.208.153 AS1221 Telstra Limited 1.13ms from Melbourne, AU
203.58.170.116 AS1221 Telstra Limited 5.04ms from Brisbane, AU
203.58.224.65 AS1221 Telstra Limited 0.94ms from Brisbane, AU
203.58.225.205 AS1221 Telstra Limited 1.25ms from Melbourne, AU
203.58.251.59 AS1221 Telstra Limited 0.98ms from Sydney, AU
203.58.188.185 AS1221 Telstra Limited 1.64ms from Melbourne, AU
203.58.231.245 AS1221 Telstra Limited 1.25ms from Melbourne, AU
203.58.250.5 AS1221 Telstra Limited 0.74ms from Melbourne, AU
203.58.180.153 AS1221 Telstra Limited 1.07ms from Brisbane, AU
203.58.211.241 AS1221 Telstra Limited 0.97ms from Brisbane, AU
203.58.230.225 AS1221 Telstra Limited 1.23ms from Melbourne, AU
203.58.197.241 AS1221 Telstra Limited 2.23ms from Melbourne, AU
203.58.134.193 AS1221 Telstra Limited 0.92ms from Melbourne, AU
203.58.219.246 AS1221 Telstra Limited 1.47ms from Perth, AU
203.58.207.77 AS1221 Telstra Limited 1.10ms from Sydney, AU
203.58.252.215 AS1221 Telstra Limited 0.65ms from Sydney, AU
203.58.249.57 AS1221 Telstra Limited 1.13ms 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
173.16.46.1 AS30036 Mediacom Communications Corp 10.20ms from Atlanta, US
120.2.84.225 AS4837 CHINA UNICOM China169 Backbone 9.09ms from Beijing, CN
152.201.192.1 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 1.64ms from Bogota, CO
128.103.19.1 AS1742 Harvard University 1.40ms from Boston, US
109.98.233.1 AS9050 Orange Romania S.A. 5.93ms from Bucharest, RO
181.119.15.1 AS18747 IFX Corporation 0.65ms from Buenos Aires, AR
50.122.88.1 AS5650 Frontier Communications of America, Inc. 3.77ms from Chicago, US
50.102.208.1 AS5650 Frontier Communications of America, Inc. 4.47ms from Chicago, US
68.45.230.33 AS7922 Comcast Cable Communications, LLC 14.61ms from Chicago, US
80.196.24.241 AS3292 TDC Holding A/S 3.57ms from Copenhagen, DK
154.124.42.241 AS8346 SONATEL-AS Autonomous System 2.65ms from Dakar, SN
122.15.20.209 AS55410 Vodafone Idea Ltd 3.38ms from Delhi, IN
115.245.205.81 AS55836 Reliance Jio Infocomm Limited 2.38ms from Delhi, IN
117.239.5.65 AS9829 National Internet Backbone 5.59ms from Delhi, IN
159.238.249.65 AS14977 State of Wyoming Department A&I 6.66ms from Denver, US
75.232.129.145 AS6167 Verizon Business 12.31ms from Denver, US
98.209.213.1 AS7922 Comcast Cable Communications, LLC 3.27ms from Detroit, US
213.174.33.1 AS61157 PlusServer GmbH 1.19ms from Duesseldorf, DE
89.43.33.1 AS202448 MVPS LTD 0.18ms from Frankfurt am Main, DE
149.81.20.1 AS36351 IBM Cloud 1.64ms from Frankfurt am Main, DE
221.125.164.1 AS9304 HGC Global Communications Limited 1.60ms from Hong Kong, HK
183.83.34.1 AS18209 Atria Convergence Technologies Ltd., 0.78ms from Hyderabad, IN
105.226.234.1 AS37457 Telkom SA Ltd. 1.59ms from Johannesburg, ZA
72.196.16.17 AS22773 Cox Communications Inc. 4.79ms from Kansas City, US
200.106.34.1 AS6147 INTEGRATEL PERÚ S.A.A. 4.15ms from Lima, PE

Traceroute

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

$
traceroute -a -n -q1 -f5 -m16 203.58.161.77
traceroute to 203.58.161.77 (203.58.161.77): 16 hops max, 52 byte packets
6 [AS4637] 202.47.214.229 61.157 ms
7 *
8 [AS4637] 202.84.140.105 131.228 ms
9 [AS1221] 203.50.9.12 123.031 ms
10 [AS1221] 203.50.6.236 144.501 ms
11 [AS1221] 203.50.6.122 158.118 ms
12 [AS1221] 203.50.13.124 170.854 ms
13 [AS1221] 203.50.13.132 168.659 ms
14 *
15 *
16 *
Measurement taken from IPinfo ProbeNet in Delhi, IN
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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