203.40.0.0/13
AS1221 · Telstra Limited
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| Country |
Australia
|
| Domain | telstra.net |
| ASN | AS1221 |
| Registry | APNIC |
| ID | TELSTRAINTERNET2-AU |
WHOIS Details
inetnum: 203.40.0.0 - 203.47.255.255 netname: TELSTRAINTERNET2-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 geofeed: https://geofeed.tools.telstra.net/geofeed.csv 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: 203.40.0.0/13 origin: AS1221 descr: Telstra Corporation 242 Exhibition Street mnt-by: MAINT-AU-TIAR-AP last-modified: 2019-12-11T21:09:26Z source: APNIC route: 203.40.0.0/13 origin: AS19905 descr: Telstra Corporation Limited 242 Exhibition Street mnt-by: MAINT-AU-TIAR-AP last-modified: 2022-09-12T02:33:17Z source: APNIC
Nearby Ranges
BGP prefixes that overlap with 203.0.0.0/8
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 203.48.0.0/14 | AS1221 | Telstra Limited | 262,144 |
| 203.36.0.0/14 | AS1221 | Telstra Limited | 262,144 |
| 203.102.0.0/15 | AS703 | Verizon Australia PTY Limited | 131,072 |
| 203.52.0.0/15 | AS1221 | Telstra Limited | 131,072 |
| 203.227.0.0/16 | AS23584 | SEJONG NETWORKS | 65,536 |
| 203.54.0.0/16 | AS1221 | Telstra Limited | 65,536 |
| 203.35.0.0/16 | AS1221 | Telstra Limited | 65,536 |
| 203.177.0.0/16 | AS132199 | Globe Telecom | 65,536 |
| 203.154.0.0/16 | AS132063 | Internet Thailand Company Limited | 65,536 |
| 203.231.0.0/16 | AS9684 | SEJONG NETWORKS | 65,536 |
| 203.59.0.0/16 | AS7545 | iiNet Limited | 65,536 |
| 203.231.0.0/16 | AS17881 | SEJONG NETWORKS | 65,536 |
| 203.138.0.0/16 | AS2514 | NTT PC Communications,Inc. | 65,536 |
| 203.155.0.0/16 | AS45197 | KSC Commercial Internet Co. Ltd. | 65,536 |
| 203.227.0.0/16 | AS9848 | SEJONG NETWORKS | 65,536 |
| 203.162.0.0/16 | AS7643 | Vietnam Posts and Telecommunications Group | 65,536 |
| 203.231.0.0/16 | AS9848 | SEJONG NETWORKS | 65,536 |
| 203.151.0.0/16 | AS4618 | Internet Thailand Company Limited | 65,536 |
| 203.154.0.0/16 | AS4618 | Internet Thailand Company Limited | 65,536 |
| 203.206.0.0/16 | AS7545 | iiNet Limited | 65,536 |
| 203.151.0.0/16 | AS133529 | Internet Thailand Company Limited | 65,536 |
| 203.61.0.0/16 | AS703 | Verizon Australia PTY Limited | 65,536 |
| 203.231.0.0/16 | AS3608 | SEJONG NETWORKS | 65,536 |
| 203.224.0.0/16 | AS9273 | ITCENENTEC CO.,LTD. | 65,536 |
| 203.231.0.0/16 | AS23593 | SEJONG NETWORKS | 65,536 |
| 203.182.0.0/16 | AS4673 | NTT DATA CORPORATION | 65,536 |
| 203.108.0.0/16 | AS703 | OzEmail Pty Ltd | 65,536 |
| 203.219.0.0/16 | AS7545 | TPG Internet Pty Ltd. | 65,536 |
| 203.69.0.0/16 | AS137280 | Data Communication Business Group, | 65,536 |
| 203.108.0.0/16 | AS12234 | OzEmail Pty Ltd | 65,536 |
| 203.227.0.0/16 | AS9973 | SEJONG NETWORKS | 65,536 |
| 203.69.0.0/16 | AS3462 | Data Communication Business Group, | 65,536 |
| 203.106.0.0/16 | AS4788 | TM TECHNOLOGY SERVICES SDN. BHD. | 65,536 |
| 203.157.0.0/16 | AS9649 | Ministry of Public Health, Thailand | 65,536 |
| 203.63.0.0/16 | AS2764 | AAPT Limited | 65,536 |
| 203.64.0.0/16 | AS1659 | Taiwan Academic Network | 65,536 |
| 203.177.0.0/16 | AS4775 | Globe Telecom | 65,536 |
| 203.73.0.0/16 | AS4780 | Digital United Inc. | 65,536 |
| 203.59.0.0/16 | AS4802 | iiNet Limited | 65,536 |
| 203.155.0.0/16 | AS7693 | KSC Commercial Internet Co. Ltd. | 65,536 |
| 203.231.0.0/16 | AS9973 | SEJONG NETWORKS | 65,536 |
| 203.177.0.0/16 | AS17894 | Globe Telecom | 65,536 |
| 203.162.0.0/16 | AS45899 | Vietnam Posts and Telecommunications Group | 65,536 |
| 203.68.0.0/16 | AS1659 | Taiwan Academic Network | 65,536 |
| 203.85.0.0/16 | AS4058 | CITIC Telecom International CPC Limited | 65,536 |
| 203.225.0.0/16 | AS4766 | KOLON BENIT | 65,536 |
| 203.67.0.0/16 | AS4780 | Digital United Inc. | 65,536 |
| 203.70.0.0/16 | AS4780 | Digital United Inc. | 65,536 |
| 203.206.0.0/16 | AS4739 | iiNet Limited | 65,536 |
Hosted domains
There are 1,242 domain names hosted across 580 IP addresses on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 203.44.179.107 | lsmtech.au | 109 |
| 203.42.42.71 | pmsltd.com.au | 60 |
| 203.42.226.5 | srglobalinitiative.au | 24 |
| 203.42.226.4 | alliedvoice.net.au | 24 |
| 203.43.113.196 | scholastic.com.au | 21 |
| 203.43.194.19 | urbanutilities.net | 21 |
| 203.46.43.125 | trailerskips.au | 16 |
| 203.41.57.175 | comvitashareoffer.co.nz | 15 |
| 203.43.113.202 | avaanneappleton.com.au | 14 |
| 203.44.36.180 | oneglb.com | 13 |
| 203.41.240.241 | vetsincranbourne.com | 11 |
| 203.43.23.61 | 132days.co.uk | 10 |
| 203.47.149.10 | wilmarmills.net.au | 9 |
| 203.47.237.4 | auswidebrokers.net.au | 9 |
| 203.45.199.168 | nci-packaging.com.au | 9 |
| 203.42.167.29 | matthies.com.au | 8 |
| 203.41.91.245 | sylvanian.com.au | 8 |
| 203.47.58.237 | cea.net.au | 8 |
| 203.47.237.22 | widebayaus.com.au | 8 |
| 203.45.229.161 | macquariedowns.com.au | 8 |
Hosted domains API
Pingable IPs
22,101 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 203.42.157.157 |
1.10ms from Adelaide,
AU
|
|
| 203.42.214.154 |
1.14ms from Brisbane,
AU
|
|
| 203.43.109.76 |
1.08ms from Melbourne,
AU
|
|
| 203.43.158.101 |
10.91ms from Melbourne,
AU
|
|
| 203.43.198.209 |
5.11ms from Perth,
AU
|
|
| 203.44.22.1 |
2.18ms from Sydney,
AU
|
|
| 203.43.204.96 |
39.26ms from Adelaide,
AU
|
|
| 203.43.255.217 |
4.63ms from Brisbane,
AU
|
|
| 203.43.207.77 |
0.99ms from Brisbane,
AU
|
|
| 203.42.122.18 |
1.16ms from Melbourne,
AU
|
|
| 203.42.184.219 |
1.65ms from Melbourne,
AU
|
|
| 203.42.100.206 |
2.47ms from Melbourne,
AU
|
|
| 203.42.77.97 |
10.30ms from Sydney,
AU
|
|
| 203.42.224.175 |
8.78ms from Sydney,
AU
|
|
| 203.42.187.11 |
2.34ms from Brisbane,
AU
|
|
| 203.43.65.3 |
0.76ms from Brisbane,
AU
|
|
| 203.43.147.241 |
1.08ms from Brisbane,
AU
|
|
| 203.42.190.115 |
1.26ms from Melbourne,
AU
|
|
| 203.43.104.1 |
0.91ms from Melbourne,
AU
|
|
| 203.43.191.195 |
0.82ms from Melbourne,
AU
|
|
| 203.43.45.102 |
1.22ms from Sydney,
AU
|
|
| 203.44.8.18 |
24.94ms from Brisbane,
AU
|
|
| 203.43.103.96 |
1.07ms from Melbourne,
AU
|
|
| 203.43.83.222 |
0.77ms from Melbourne,
AU
|
|
| 203.43.141.229 |
23.55ms from Perth,
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 |
|---|---|---|
| 178.255.195.253 |
0.56ms from Amsterdam,
NL
|
|
| 5.54.4.253 |
0.99ms from Athens,
GR
|
|
| 125.37.193.61 |
5.06ms from Beijing,
CN
|
|
| 125.18.213.125 |
0.84ms from Bengaluru,
IN
|
|
| 73.9.116.13 |
5.35ms from Chicago,
US
|
|
| 50.24.49.93 |
8.88ms from Dallas,
US
|
|
| 88.70.249.29 |
4.22ms from Hamburg,
DE
|
|
| 185.159.199.173 |
0.14ms from Johannesburg,
ZA
|
|
| 4.187.164.221 |
0.14ms from Lohogaon,
IN
|
|
| 46.56.56.13 |
4.53ms from Minsk,
BY
|
|
| 123.252.131.125 |
0.50ms from Mumbai,
IN
|
|
| 58.240.152.221 |
1.66ms from Nanjing,
CN
|
|
| 178.186.242.205 |
5.51ms from Novosibirsk,
RU
|
|
| 5.130.80.61 |
1.11ms from Novosibirsk,
RU
|
|
| 39.76.133.93 |
4.59ms from Qingdao,
CN
|
|
| 112.173.40.141 |
8.20ms from Seoul,
KR
|
|
| 49.143.121.93 |
2.97ms from Seoul,
KR
|
|
| 159.223.56.93 |
0.19ms from Singapore,
SG
|
|
| 176.100.166.189 |
0.57ms from Tel Aviv,
IL
|
|
| 139.13.83.61 |
10.24ms from Berlin,
DE
|
|
| 170.176.215.205 |
0.17ms from Columbus,
US
|
|
| 96.53.117.205 |
0.61ms from Edmonton,
CA
|
|
| 212.12.39.93 |
0.19ms from Hamburg,
DE
|
|
| 200.58.85.253 |
4.66ms from La Paz,
BO
|
|
| 148.216.88.29 |
6.81ms from Mexico City,
MX
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
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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