103.20.22.0/23

AS24510 · Optus Customer Network

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Summary

Country	Australia
Domain	holmesglen.edu.au
ASN	AS24510
Registry	APNIC
ID	HOLMESGLEN-AU

WHOIS Details

inetnum:        103.20.22.0 - 103.20.23.255
netname:        HOLMESGLEN-AU
descr:          HOLMESGLEN INSTITUTE OF TAFE
descr:          Corner Batesford & Warrigal Roads
descr:          Chadstone, Victoria, 3148
country:        AU
org:            ORG-HIOT1-AP
admin-c:        HNA8-AP
tech-c:         HNA8-AP
abuse-c:        AH1068-AP
status:         ASSIGNED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-routes:     MAINT-HOLMESGLEN-AU
mnt-irt:        IRT-HOLMESGLEN-AU
last-modified:  2020-08-04T13:34:59Z
source:         APNIC

irt:            IRT-HOLMESGLEN-AU
address:        PoBox 42, chadstone, victoria 3148
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        HNA8-AP
tech-c:         HNA8-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-06-25
mnt-by:         MAINT-HOLMESGLEN-AU
last-modified:  2025-11-18T00:27:45Z
source:         APNIC

organisation:   ORG-HIOT1-AP
org-name:       HOLMESGLEN INSTITUTE OF TAFE
org-type:       LIR
country:        AU
address:        Corner Batesford & Warrigal Roads Chadstone, Victoria, 3148
phone:          +61-419-545-662
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:16:03Z
source:         APNIC

role:           ABUSE HOLMESGLENAU
country:        ZZ
address:        PoBox 42, chadstone, victoria 3148
phone:          +000000000
e-mail:         [email protected]
admin-c:        HNA8-AP
tech-c:         HNA8-AP
nic-hdl:        AH1068-AP
remarks:        Generated from irt object IRT-HOLMESGLEN-AU
remarks:        [email protected] was validated on 2025-06-25
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-06-25T07:20:44Z
source:         APNIC

role:           HOLMESGLEN  - network administrator
address:        PoBox 42, chadstone, victoria 3148
country:        AU
phone:          +61 3 9564 1925
e-mail:         [email protected]
admin-c:        HNA8-AP
tech-c:         HNA8-AP
nic-hdl:        HNA8-AP
mnt-by:         MAINT-HOLMESGLEN-AU
last-modified:  2012-09-10T04:51:40Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 103.20.0.0/16

Range	ASN	Company	Num of IPs
103.20.136.0/22	AS10022	Datacom Group Ltd	1,024
103.20.32.0/22	AS131274	CYPRESS TELECOM (CHINA) LIMITED	1,024
103.20.148.0/22	AS131367	Viet Online trading service corporation	1,024
103.20.24.0/22	AS132395	Unified National Networks	1,024
103.20.172.0/22	AS132418	1 Rue Royale FR	1,024
103.20.212.0/22	AS132420	282, Sector 19	1,024
103.20.204.0/22	AS134240	ADVANCED WIRELESS NETWORK COMPANY LIMITED	1,024
103.20.160.0/22	AS134765	HanMing Group Limited	1,024
103.20.192.0/22	AS135357	HONG KONG KOWLOON TELECOMMUNICATIONS CO.,LIMITED	1,024
103.20.80.0/22	AS139628	Mega Truenet Communication Co., Ltd.	1,024
103.20.128.0/22	AS151185	Juzhi technology co., ltd	1,024
103.20.116.0/22	AS17583	Keumgang Cable Network	1,024
103.20.76.0/22	AS17828	PNG DATACO LTD	1,024
103.20.72.0/22	AS24295	15-14fuzi Bld.40-5F,Sakuragaokacho,Shibuya-ku	1,024
103.20.156.0/22	AS2519	Earthstar Solution Co., Ltd.	1,024
103.20.200.0/22	AS38719	VODIEN AUSTRALIA PTY LTD	1,024
103.20.40.0/22	AS38843	PUMO NETWORK DIGITAL TECHNOLOGY CO.,LTD	1,024
103.20.144.0/22	AS45552	METASERV COMPANY LIMITED	1,024
103.20.4.0/22	AS4686	4-41-16-103Z,yoyogi,shibuya-ku	1,024
103.20.8.0/22	AS4686	Shu BLDG 2538	1,024
103.20.52.0/22	AS55406	HRC Technologies Ltd	1,024
103.20.32.0/22	AS55996	CYPRESS TELECOM (CHINA) LIMITED	1,024
103.20.180.0/22	AS58688	Radiant telecommunications	1,024
103.20.140.0/22	AS58704	Suite 301 Concord Tower	1,024
103.20.252.0/22	AS58710	A1 Richmond Road	1,024
103.20.152.0/22	AS58726	# 203, Express tower	1,024
103.20.112.0/22	AS9808	China Mobile Communications Corporation	1,024
103.20.232.0/23	AS132429	Private Mail Box 9103	512
103.20.38.0/23	AS211252	Akari Netowrks K.K.	512
103.20.246.0/23	AS15830	Cogenesis Business Group	512
103.20.18.0/23	AS132392	Alterian Software Pty Ltd	512
103.20.96.0/23	AS151858	FAST BYTE FAST DATA COMPANY LIMITED	512
103.20.102.0/23	AS151858	THAI AN KHANG COMMUNICATION SERVICES CO., LTD	512
103.20.126.0/23	AS132415	Palm Court Bldg M, 501/B, 5th Floor, New Link Road	512
103.20.90.0/23	AS58381	Wow Internet Indonesia	512
103.20.228.0/23	AS136176	Turtseo	512
103.20.36.0/23	AS211252	Akari Netowrks K.K.	512
103.20.234.0/23	AS395092	Shock Hosting LLC	512
103.20.164.0/24	AS56285	DIGITRAL PRIVATE LIMITED	256
103.20.168.0/24	AS56300	MyRepublic Pte Ltd	256
103.20.169.0/24	AS56300	MyRepublic Pte Ltd	256
103.20.48.0/24	AS24510	HOLMESGLEN INSTITUTE OF TAFE	256
103.20.170.0/24	AS56300	MyRepublic Ltd	256
103.20.51.0/24	AS58557	PT IONPay Networks	256
103.20.222.0/24	AS40065	hongkong netbroadband	256
103.20.223.0/24	AS40065	hongkong netbroadband	256
103.20.64.0/24	AS45415	Vasai Cable Pvt. Ltd. - ISP	256
103.20.65.0/24	AS45415	Vasai Cable Pvt. Ltd. - ISP	256
103.20.28.0/24	AS131215	SANCHARONLINE IP POOL	256

Hosted domains

There are no domains currently hosted on this ASN.

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

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Pingable IPs

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

IP Address	ASN	Details
103.20.22.70	AS24510 Optus Customer Network	`0.81ms` from Melbourne, AU
103.20.23.70	AS24510 Optus Customer Network	`0.81ms` 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
181.61.22.199	AS10620 Telmex Colombia S.A.	`7.67ms` from Bogota, CO
216.195.5.167	AS26292 Shrewsbury Electric and Cable Operations	`1.45ms` from Boston, US
192.182.25.199	AS5650 Frontier Communications of America, Inc.	`9.08ms` from Chicago, US
112.103.161.7	AS4134 CHINANET-BACKBONE	`13.68ms` from Dalian, CN
51.52.14.151	AS31655 Gamma Telecom Holdings Ltd	`0.58ms` from London, GB
88.43.220.247	AS3269 Telecom Italia S.p.A.	`0.34ms` from Milan, IT
115.212.102.39	AS4134 CHINANET-BACKBONE	`7.17ms` from Ningbo, CN
91.58.85.119	AS3320 Deutsche Telekom AG	`4.48ms` from Nuernberg, DE
84.202.20.87	AS2119 Telenor Norge AS	`5.98ms` from Oslo, NO
15.164.91.183	AS16509 Amazon.com, Inc.	`0.21ms` from Seoul, KR
20.243.234.151	AS8075 Microsoft Corporation	`0.17ms` from Tokyo, JP
188.128.134.103	AS12824 home.pl S.A.	`1.19ms` from Warsaw, PL
24.24.92.23	AS13343 Charter Communications Inc	`4.70ms` from Atlanta, US
23.4.44.247	AS16625 Akamai Technologies, Inc.	`0.23ms` from Atlanta, US
154.192.177.135	AS23674 Nayatel (Pvt) Ltd	`13.43ms` from Karachi, PK
104.6.140.103	AS7018 AT&T Enterprises, LLC	`11.40ms` from Los Angeles, US
97.221.141.119	AS6167 Verizon Business	`9.36ms` from Miami, US
186.55.167.215	AS6057 Administracion Nacional de Telecomunicaciones	`1.71ms` from Montevideo, UY
59.190.125.39	AS17511 OPTAGE Inc.	`2.60ms` from Osaka, JP
52.67.13.151	AS16509 Amazon.com, Inc.	`0.15ms` from Osasco, BR
54.226.34.119	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
174.54.176.39	AS7922 Comcast Cable Communications, LLC	`17.06ms` from Reston, US
79.40.227.7	AS3269 Telecom Italia S.p.A.	`5.28ms` from Rome, IT
97.113.172.71	AS209 CenturyLink Communications, LLC	`1.77ms` from Seattle, US
46.217.103.7	AS6821 Makedonski Telekom AD-Skopje	`0.77ms` from Skopje, MK

Traceroute

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

traceroute -a -n -q1 -f5 103.20.22.1

traceroute to 103.20.22.1 (103.20.22.1): 64 hops max, 52 byte packets

5 [AS3356] 4.16.52.81 10.289 ms

6 [AS3356] 171.75.8.197 82.733 ms

7 [AS3356] 217.163.113.74 266.8 ms

8 [AS7575] 113.197.15.20 261.439 ms

9 [AS24510] 103.20.22.1 262.629 ms

Measurement taken from

IPinfo ProbeNet in Toronto, CA

On December 14th 2025

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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