203.2.133.0/24

AS7474 · SingTel Optus Pty Ltd

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Summary

Country	Australia
Domain	acer.org
ASN	AS7474
Registry	APNIC
ID	TACFERL-AU

WHOIS Details

inetnum:        203.2.133.0 - 203.2.133.255
netname:        TACFERL-AU
descr:          The Australian Council for Educational Research Limited
country:        AU
org:            ORG-TACF1-AP
admin-c:        TACF1-AP
tech-c:         TACF1-AP
abuse-c:        AT1689-AP
status:         ASSIGNED PORTABLE
mnt-by:         APNIC-HM
mnt-irt:        IRT-TACFERL-AU
last-modified:  2022-07-18T04:57:35Z
source:         APNIC

irt:            IRT-TACFERL-AU
address:        19 Prospect Hill Rd, Camberwell Victoria 3124
e-mail:         daryl.nguyen@acer.org
abuse-mailbox:  daryl.nguyen@acer.org
admin-c:        TACF1-AP
tech-c:         TACF1-AP
auth:           # Filtered
remarks:        daryl.nguyen@acer.org was validated on 2025-09-17
mnt-by:         MAINT-TACFERL-AU
last-modified:  2025-11-18T00:36:15Z
source:         APNIC

organisation:   ORG-TACF1-AP
org-name:       The Australian Council for Educational Research Limited
org-type:       LIR
country:        AU
address:        19 Prospect Hill Rd
phone:          +61392775555
e-mail:         daryl.nguyen@acer.org
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:18:57Z
source:         APNIC

role:           ABUSE TACFERLAU
country:        ZZ
address:        19 Prospect Hill Rd, Camberwell Victoria 3124
phone:          +000000000
e-mail:         daryl.nguyen@acer.org
admin-c:        TACF1-AP
tech-c:         TACF1-AP
nic-hdl:        AT1689-AP
remarks:        Generated from irt object IRT-TACFERL-AU
remarks:        daryl.nguyen@acer.org was validated on 2025-09-17
abuse-mailbox:  daryl.nguyen@acer.org
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-17T01:01:46Z
source:         APNIC

role:           The Australian Council for Educational Research Limited administrator
address:        19 Prospect Hill Rd, Camberwell Victoria 3124
country:        AU
phone:          +61392775555
e-mail:         daryl.nguyen@acer.org
admin-c:        TACF1-AP
tech-c:         TACF1-AP
nic-hdl:        TACF1-AP
mnt-by:         MAINT-TACFERL-AU
last-modified:  2022-07-18T04:31:27Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.2.0.0/16

Range	ASN	Company	Num of IPs
203.2.0.0/19	AS138180	Ernst & Young Services Pty Ltd	8,192
203.2.80.0/20	AS7474	The Royal Melbourne Hospital	4,096
203.2.240.0/20	AS132029	Australian Maritime Safety Authority	4,096
203.2.160.0/21	AS134768	CHINANET Guangdong province network	2,048
203.2.192.0/22	AS703	Verizon Australia Pty Limited	1,024
203.2.130.0/23	AS135409	Kacific Broadband Satellites Pte Ltd	512
203.2.182.0/23	AS55924	Aristocrat Technologies Australia Pty Limited	512
203.2.120.0/23	AS9555	Australian Institute of Health and Welfare	512
203.2.124.0/24	AS4739	iiNet Limited	256
203.2.134.0/24	AS4739	iiNet Limited	256
203.2.75.0/24	AS4804	SingTel Optus Pty Ltd	256
203.2.231.0/24	AS7474	Hastings Deering Australia Limited	256
203.2.199.0/24	AS7545	Stephen Davies Consulting Pty Ltd	256
203.2.217.0/24	AS9268	B & R Enclosures Pty Ltd	256
203.2.218.0/24	AS9342	Australian Broadcasting Commission	256
203.2.216.0/24	AS10221	Qvalent Pty Ltd	256
203.2.208.0/24	AS9555	Verizon Australia PTY Limited	256
203.2.228.0/24	AS1221	Telstra Limited	256
203.2.224.0/24	AS134555	Kingston City Council	256
203.2.151.0/24	AS142043	PT BARAYA BARENG SADULUR	256
203.2.123.0/24	AS152695	Premium Floors Australia Pty Ltd	256
203.2.198.0/24	AS16509	Mindful	256
203.2.122.0/24	AS24446	5G NETWORK OPERATIONS PTY LTD	256
203.2.125.0/24	AS32787	Tab Limited (ACN 081 765 308)	256

Hosted domains

There are 25 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.2.133.207	acer.edu.au	24
203.2.133.230	acerhr.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

Read more

Pingable IPs

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

IP Address	ASN	Details
203.2.133.74	AS7474 SingTel Optus Pty Ltd	`2.84ms` 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
212.54.83.8	AS9158 Telenor A/S	`8.85ms` from Copenhagen, DK
128.194.243.152	AS3794 Texas A&M University	`8.78ms` from Dallas, US
87.118.113.24	AS31103 Keyweb AG	`0.21ms` from Erfurt, DE
86.180.89.152	AS2856 British Telecommunications PLC	`5.14ms` from Erith, GB
90.232.24.56	AS3301 Telia Company AB	`14.75ms` from Goeteborg, SE
175.112.106.24	AS9318 SK Broadband Co Ltd	`1.83ms` from Incheon, KR
176.150.37.104	AS5410 Bouygues Telecom SA	`8.18ms` from Marseille, FR
185.251.60.136	AS204358 OPEN Dot Com S.p.a.	`6.07ms` from Milan, IT
189.175.106.232	AS8151 UNINET	`1.76ms` from Monterrey, MX
108.29.0.120	AS701 Verizon Business	`2.66ms` from New York City, US
101.16.10.40	AS4837 CHINA UNICOM China169 Backbone	`14.72ms` from Qingdao, CN
27.196.156.168	AS4837 CHINA UNICOM China169 Backbone	`7.54ms` from Qingdao, CN
45.181.208.8	AS269201 UP FOUR NET TELECOM LTDA	`1.67ms` from Rio de Janeiro, BR
178.193.66.200	AS3303 Swisscom (Switzerland) Ltd	`2.36ms` from Zuerich, CH
73.237.199.248	AS7922 Comcast Cable Communications, LLC	`5.30ms` from Atlanta, US
107.13.218.104	AS11426 Charter Communications Inc	`9.36ms` from Charlotte, US
121.14.36.136	AS4134 CHINANET-BACKBONE	`1.50ms` from Guangzhou, CN
171.231.67.88	AS7552 Viettel Group	`14.83ms` from Ho Chi Minh City, VN
99.41.229.8	AS7018 AT&T Enterprises, LLC	`12.75ms` from Kansas City, US
86.152.31.8	AS2856 British Telecommunications PLC	`3.31ms` from London, GB
126.5.207.104	AS17676 SoftBank Corp.	`10.04ms` from Osaka, JP
70.176.119.72	AS22773 Cox Communications Inc.	`1.26ms` from Phoenix, US
2.194.84.72	AS16232 Telecom Italia S.p.A.	`19.25ms` from Rome, IT
119.64.105.104	AS17858 LG POWERCOMM	`1.85ms` from Seoul, KR
52.76.250.24	AS16509 Amazon.com, Inc.	`0.12ms` from Singapore, SG

Traceroute

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

traceroute -a -n -q1 -f2 203.2.133.74

traceroute to 203.2.133.74 (203.2.133.74): 64 hops max, 52 byte packets

2 [AS136557] 103.216.222.83 0.094 ms

3 [AS136557] 103.216.222.82 0.088 ms

4 [AS136557] 103.216.222.78 0.098 ms

5 [AS7474] 59.154.48.249 16.652 ms

6 *

7 [AS7474] 124.19.61.87 3.815 ms

8 [AS7474] 124.19.14.18 2.457 ms

9 [AS7474] 203.2.133.74 2.785 ms

Measurement taken from

IPinfo ProbeNet in Melbourne, AU

On January 19th 2026

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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