203.21.121.0/24
AS7575 · Australian Academic and Research Network (AARNet)
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| Country |
Australia
|
| Domain | universitiesaustralia.edu.au |
| ASN | AS7575 |
| Registry | APNIC |
| ID | UNIAUS-AU |
WHOIS Details
inetnum: 203.21.121.0 - 203.21.121.255 netname: UNIAUS-AU descr: Universities Australia descr: 1-5 Geils Court descr: Deakin descr: ACT 2601 country: AU org: ORG-UA7-AP admin-c: UANA1-AP tech-c: UANA1-AP abuse-c: AU241-AP status: ASSIGNED PORTABLE mnt-by: APNIC-HM mnt-routes: MAINT-AU-UNIVERSITIESAUSTRALIA mnt-irt: IRT-UNIVERSITIESAUSTRALIA-AU last-modified: 2020-11-25T13:04:31Z source: APNIC irt: IRT-UNIVERSITIESAUSTRALIA-AU address: 1-5 Geils Court address: Deakin address: ACT 2601 address: Australia phone: +61 2 6285 8117 e-mail: administrator@universitiesaustralia.edu.au abuse-mailbox: administrator@universitiesaustralia.edu.au admin-c: UANA1-AP tech-c: UANA1-AP remarks: administrator@universitiesaustralia.edu.au was validated on 2025-10-02 irt-nfy: C.Webeck@universitiesaustralia.edu.au auth: # Filtered mnt-by: MAINT-AU-UNIVERSITIESAUSTRALIA last-modified: 2025-11-18T00:27:58Z source: APNIC organisation: ORG-UA7-AP org-name: Universities Australia org-type: LIR country: AU address: 1 Geils Court phone: +61-2-6285-8100 e-mail: administrator@universitiesaustralia.edu.au mnt-ref: APNIC-HM mnt-by: APNIC-HM last-modified: 2023-09-05T02:15:06Z source: APNIC role: ABUSE UNIVERSITIESAUSTRALIAAU country: ZZ address: 1-5 Geils Court address: Deakin address: ACT 2601 address: Australia phone: +61 2 6285 8117 e-mail: administrator@universitiesaustralia.edu.au admin-c: UANA1-AP tech-c: UANA1-AP nic-hdl: AU241-AP remarks: Generated from irt object IRT-UNIVERSITIESAUSTRALIA-AU remarks: administrator@universitiesaustralia.edu.au was validated on 2025-10-02 abuse-mailbox: administrator@universitiesaustralia.edu.au mnt-by: APNIC-ABUSE last-modified: 2025-10-02T23:26:32Z source: APNIC role: Universities Australia - Network Administrator address: 1 Geils Court, Deakin, ACT, country: AU phone: +61262858117 e-mail: C.Webeck@universitiesaustralia.edu.au admin-c: UANA1-AP tech-c: UANA1-AP nic-hdl: UANA1-AP mnt-by: MAINT-AU-UNIVERSITIESAUSTRALIA last-modified: 2013-01-21T06:30:27Z source: APNIC
Nearby Ranges
BGP prefixes that overlap with 203.21.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 203.21.112.0/21 | AS133612 | VODAFONE AUSTRALIA PTY LIMITED | 2,048 |
| 203.21.24.0/21 | AS703 | Verizon Australia PTY Limited | 2,048 |
| 203.21.140.0/22 | AS135409 | Kacific Broadband Satellites Pte Ltd | 1,024 |
| 203.21.108.0/22 | AS133612 | VODAFONE AUSTRALIA PTY LIMITED | 1,024 |
| 203.21.150.0/23 | AS137896 | Hunter Water Corporation | 512 |
| 203.21.128.0/23 | AS2764 | St. Vincent's Health & Aged Care Ltd. | 512 |
| 203.21.130.0/23 | AS10148 | The University of Melbourne | 512 |
| 203.21.42.0/23 | AS56118 | 47/111 Tiwanon Road | 512 |
| 203.21.76.0/23 | AS38549 | Viewbank Rise Networks | 512 |
| 203.21.66.0/24 | AS209854 | Cyberzone S.A. | 256 |
| 203.21.4.0/24 | AS216053 | Data Cloud Technology d.o.o Kragujevac | 256 |
| 203.21.7.0/24 | AS24448 | Synamedia Technologies (India) Private Limited | 256 |
| 203.21.79.0/24 | AS2764 | First Linear | 256 |
| 203.21.72.0/24 | AS395793 | Mistic Internet Security Pty Ltd | 256 |
| 203.21.125.0/24 | AS45671 | MailGuard Pty. Ltd. | 256 |
| 203.21.20.0/24 | AS4739 | iiNet Limited | 256 |
| 203.21.134.0/24 | AS58716 | Penrith City Council | 256 |
| 203.21.5.0/24 | AS7545 | Micronica | 256 |
| 203.21.78.0/24 | AS7545 | iiNet Limited | 256 |
| 203.21.37.0/24 | AS7575 | Australian Academic and Research Network | 256 |
| 203.21.83.0/24 | AS7647 | OnTheNet Pty Ltd | 256 |
| 203.21.95.0/24 | AS9009 | Formosa Sydney Pty Limited | 256 |
| 203.21.22.0/24 | AS9266 | Fiveways International Limited | 256 |
| 203.21.207.0/24 | AS10143 | Infinet Group Pty Ltd | 256 |
| 203.21.12.0/24 | AS9650 | CITEC | 256 |
| 203.21.9.0/24 | AS10143 | OCTEC Incorporated | 256 |
| 203.21.40.0/24 | AS133015 | City of Stirling | 256 |
| 203.21.140.0/24 | AS135409 | Western Samoa Pool | 256 |
| 203.21.65.0/24 | AS154329 | Phoenix Business Solutions Australia Pty Ltd | 256 |
| 203.21.120.0/24 | AS17882 | Univision LLC | 256 |
| 203.21.21.0/24 | AS17889 | Intraceptives Pty Ltd | 256 |
| 203.21.104.0/24 | AS18986 | Calligo (Canada) Inc. | 256 |
| 203.21.47.0/24 | AS18986 | Calligo (Canada) Inc. | 256 |
Hosted domains
There are no domains currently hosted on this ASN.
Hosted domains API
Pingable IPs
2 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 203.21.121.42 |
4.30ms from Sydney,
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 |
|---|---|---|
| 174.97.154.104 |
5.01ms from Chicago,
US
|
|
| 171.250.16.72 |
2.48ms from Ho Chi Minh City,
VN
|
|
| 144.92.53.120 |
1.48ms from Madison,
US
|
|
| 34.19.201.120 |
0.09ms from Montreal,
CA
|
|
| 108.21.220.200 |
3.52ms from New York City,
US
|
|
| 61.197.83.88 |
2.05ms from Osaka,
JP
|
|
| 27.192.251.104 |
5.70ms from Qingdao,
CN
|
|
| 76.21.29.8 |
5.43ms from Santa Clara,
US
|
|
| 49.27.74.104 |
6.59ms from Seoul,
KR
|
|
| 153.169.9.168 |
2.84ms from Tokyo,
JP
|
|
| 101.25.136.72 |
10.58ms from Beijing,
CN
|
|
| 125.99.242.88 |
1.13ms from Bengaluru,
IN
|
|
| 101.187.148.168 |
5.53ms from Brisbane,
AU
|
|
| 76.136.237.120 |
5.27ms from Chicago,
US
|
|
| 116.110.101.232 |
2.15ms from Hanoi,
VN
|
|
| 205.215.10.24 |
1.48ms from Macau,
MO
|
|
| 124.168.223.184 |
1.51ms from Melbourne,
AU
|
|
| 73.190.91.200 |
5.41ms from Portland,
US
|
|
| 54.225.143.232 |
0.22ms from Reston,
US
|
|
| 188.152.54.200 |
12.58ms from Rome,
IT
|
|
| 125.139.158.152 |
4.36ms from Seoul,
KR
|
|
| 180.22.83.184 |
17.60ms from Tokyo,
JP
|
|
| 186.28.19.56 |
1.07ms from Bogota,
CO
|
|
| 105.159.250.200 |
2.07ms from Casablanca,
MA
|
|
| 99.191.40.104 |
6.33ms from Chicago,
US
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Sofia, BG
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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