203.143.192.0/18

AS1221  ·  Telstra Limited

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Summary

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

WHOIS Details

inetnum:        203.143.192.0 - 203.143.255.255
netname:        TELSTRAINTERNET-AU
descr:          Telstra Limited
country:        AU
org:            ORG-TC6-AP
admin-c:        TIAR-AP
tech-c:         TAN2-AP
status:         ALLOCATED PORTABLE
abuse-c:        AT1005-AP
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:  2025-09-04T01:00:06Z
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 8632 0516
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:  2022-06-08T09:03:20Z
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:          203.143.192.0/18
origin:         AS1221
descr:          Telstra Corporation 242 Exhibition Street
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2021-02-26T02:25:16Z
source:         APNIC

route:          203.143.192.0/18
origin:         AS19905
descr:          Telstra Corporation Limited 242 Exhibition Street
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2022-09-12T02:12:20Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.143.0.0/16

Range ASN Company Num of IPs
203.143.96.0/19 AS2514 INTERLINK Co.,LTD. 8,192
203.143.64.0/20 AS10105 OMNIconnect Pty Ltd 4,096
203.143.160.0/20 AS6262 Commonwealth Scientific and Industrial Research Organisation 4,096
203.143.92.0/22 AS10105 OMNIconnect Pty Ltd 1,024
203.143.80.0/23 AS10105 OMNIconnect Pty Ltd 512
203.143.82.0/24 AS140576 VPSBlocks Pty Ltd 256
203.143.83.0/24 AS140576 VPSBlocks Pty Ltd 256
203.143.84.0/24 AS140576 VPSBlocks Pty Ltd 256
203.143.85.0/24 AS140576 VPSBlocks Pty Ltd 256
203.143.86.0/24 AS140576 VPSBlocks Pty Ltd 256
203.143.87.0/24 AS140576 VPSBlocks Pty Ltd 256
203.143.88.0/24 AS140576 VPSBlocks Pty Ltd 256
203.143.89.0/24 AS140576 VPSBlocks Pty Ltd 256
203.143.90.0/24 AS140576 Hosting 256
203.143.67.0/24 AS10105 IP Assignment to CPE 256
203.143.21.0/24 AS5087 Address assignment to LCS WEB HOSTING by LANKACOM-LK 256
203.143.36.0/24 AS5087 Address assignment to WEBHOSTING by LANKACOM-LK 256
203.143.37.0/24 AS5087 Address assignment to NMC by LANKACOM-LK 256
203.143.62.0/24 AS5087 Assigned to LankaCom Infrastructure-Voice N/W 256
203.143.63.0/24 AS5087 Assigned to LankaCom Infrastructure-Voice N/W 256
203.143.79.0/24 AS10105 Interconnects 256

Hosted domains

There are 6 domain names hosted across 6 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
203.143.255.69 maxbryant.com.au 1
203.143.238.175 bghtransport.com.au 1
203.143.239.36 kdnp.com.au 1
203.143.248.140 peretteaccounting.com.au 1
203.143.254.62 sugar-sticks.com 1
203.143.238.2 mapletonmedical.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

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

IP Address ASN Details
203.143.243.49 AS1221 Telstra Limited 0.97ms from Brisbane, AU
203.143.242.117 AS1221 Telstra Limited 0.96ms 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
192.230.66.18 AS19551 Incapsula Inc 0.16ms from Ashburn, US
63.218.172.178 AS3491 PCCW Global, Inc. 0.56ms from Athens, GR
116.204.75.66 AS55990 Huawei Cloud Service data center 7.82ms from Beijing, CN
104.155.66.226 AS396982 Google LLC 0.15ms from Brussels, BE
12.230.22.162 AS7018 AT&T Enterprises, LLC 13.53ms from Chicago, US
209.255.22.210 AS7029 Windstream Communications LLC 12.69ms from Chicago, US
209.43.76.18 AS13767 DataBank Holdings, Ltd. 1.20ms from Dallas, US
65.157.107.82 AS209 CenturyLink Communications, LLC 1.30ms from Denver, US
20.203.68.130 AS8075 Microsoft Corporation 0.92ms from Dubai, AE
34.185.180.82 AS396982 Google LLC 0.11ms from Frankfurt am Main, DE
223.197.23.18 AS4515 PCCW IMS Ltd (PCCW Business Internet Access) 1.20ms from Hong Kong, HK
122.129.121.194 AS24514 Malaysian Research & Education Network 8.43ms from Kuala Lumpur, MY
86.165.84.146 AS2856 British Telecommunications PLC 3.69ms from London, GB
185.26.143.162 AS60772 Sky Italia srl 0.62ms from Milan, IT
150.31.45.130 AS2497 Internet Initiative Japan Inc. 2.58ms from Osaka, JP
118.139.252.162 AS9770 LG HelloVision Corp. 14.03ms from Seoul, KR
83.78.58.82 AS3303 Swisscom (Switzerland) Ltd 0.70ms from Zuerich, CH
114.134.161.2 AS45280 New Zealand Technology Group Limited 0.70ms from Auckland, NZ
167.179.233.2 AS55423 JasTel Network 0.80ms from Bangkok, TH
162.248.249.2 AS395382 COMMONWEALTH EQUITY SERVICES, INC. 2.19ms from Boston, US
75.159.133.194 AS852 TELUS Communications Inc. 10.54ms from Calgary, CA
117.238.249.82 AS9829 National Internet Backbone 9.35ms from Chennai, IN
23.56.233.34 AS16625 Akamai Technologies, Inc. 0.49ms from Dallas, US
52.150.234.130 AS8075 Microsoft Corporation 3.40ms from Denver, US
135.196.25.50 AS9009 M247 Europe SRL 10.14ms from Dubai, AE

Traceroute

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

$
traceroute -a -n -q1 -m7 203.143.228.48
traceroute to 203.143.228.48 (203.143.228.48): 7 hops max, 52 byte packets
1 [AS15169] 142.250.224.122 116.939 ms
2 *
3 [AS1221] 203.50.11.194 115.897 ms
4 [AS1221] 203.50.13.130 128.208 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Hong Kong, HK
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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