139.5.172.0/23

AS56307 · ac3, Australian Centre for Advanced Computing and Communications

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Summary

Country	Australia
Domain	ac3.com.au
ASN	AS56307
Registry	APNIC
ID	AC3-MEMBER-AU

WHOIS Details

inetnum:        139.5.172.0 - 139.5.175.255
netname:        AC3-MEMBER-AU
descr:          AUSTRALIAN CENTRE FOR ADVANCED COMPUTING
descr:          AND COMMUNICATION PTY LTD
descr:          Level 8 East
descr:          8 Central Avenue
descr:          Eveleigh NSW 2015
country:        AU
org:            ORG-ACFA1-AP
admin-c:        ACFA1-AP
tech-c:         ACFA1-AP
abuse-c:        AA1457-AP
status:         ALLOCATED 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-lower:      MAINT-AC3-MEMBER-AU
mnt-routes:     MAINT-AC3-MEMBER-AU
mnt-irt:        IRT-AC3-MEMBER-AU
last-modified:  2020-05-19T13:14:15Z
source:         APNIC

irt:            IRT-AC3-MEMBER-AU
address:        Level 7, 477 Pitt Street, Haymarket, New South Wales 2000
e-mail:         abuse@ac3.com.au
abuse-mailbox:  abuse@ac3.com.au
admin-c:        ACFA1-AP
tech-c:         MO273-AP
auth:           # Filtered
remarks:        abuse@ac3.com.au was validated on 2026-01-13
mnt-by:         MAINT-AC3-MEMBER-AU
last-modified:  2026-01-27T02:29:46Z
source:         APNIC

organisation:   ORG-ACFA1-AP
org-name:       AUSTRALIAN CENTRE FOR ADVANCED COMPUTING AND COMMUNICATION PTY LTD
org-type:       LIR
country:        AU
address:        Level 7,
address:        477 Pitt Street,
phone:          +61-2-91990888
fax-no:         +61-2-91990808
e-mail:         info@ac3.com.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:16:20Z
source:         APNIC

role:           ABUSE AC3MEMBERAU
country:        ZZ
address:        Level 7, 477 Pitt Street, Haymarket, New South Wales 2000
phone:          +000000000
e-mail:         abuse@ac3.com.au
admin-c:        ACFA1-AP
tech-c:         MO273-AP
nic-hdl:        AA1457-AP
remarks:        Generated from irt object IRT-AC3-MEMBER-AU
remarks:        abuse@ac3.com.au was validated on 2026-01-13
abuse-mailbox:  abuse@ac3.com.au
mnt-by:         APNIC-ABUSE
last-modified:  2026-01-13T22:27:18Z
source:         APNIC

role:           Australian Centre for Advanced Computing and Commu
address:        Level 7, 477 Pitt Street, Haymarket, New South Wales 2000
country:        AU
phone:          +61-2-91990888
fax-no:         +61-2-91990808
e-mail:         abuse@ac3.com.au
admin-c:        ACFA1-AP
tech-c:         ACFA1-AP
nic-hdl:        ACFA1-AP
mnt-by:         MAINT-AC3-MEMBER-AU
last-modified:  2020-11-16T03:45:51Z
source:         APNIC

route:          139.5.172.0/22
origin:         AS17732
descr:          AUSTRALIAN CENTRE FOR ADVANCED COMPUTING AND COMMUNICATION PTY LTD Level 7, 477 Pitt Street,
mnt-by:         MAINT-AC3-MEMBER-AU
last-modified:  2022-08-30T02:10:58Z
source:         APNIC

route:          139.5.172.0/22
origin:         AS56307
descr:          AUSTRALIAN CENTRE FOR ADVANCED COMPUTING AND COMMUNICATION PTY LTD Level 7, 477 Pitt Street,
mnt-by:         MAINT-AC3-MEMBER-AU
last-modified:  2021-07-20T22:26:47Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 139.5.0.0/16

Range	ASN	Company	Num of IPs
139.5.152.0/22	AS131699	PT Max Internet Indonesia	1,024
139.5.60.0/22	AS134764	Guangdong LITONG Network Technology Limited	1,024
139.5.40.0/22	AS135448	PT Bukalapak.com	1,024
139.5.232.0/22	AS137409	PRIYANKA SOLUTION AND SERVICES	1,024
139.5.132.0/22	AS137551	ZTNET CO., LTD	1,024
139.5.12.0/22	AS142516	RailTel Corporation is an Internet Service Provider.	1,024
139.5.136.0/22	AS17456	Pacific Data Systems	1,024
139.5.68.0/22	AS17501	WorldLink Communications	1,024
139.5.72.0/22	AS17501	WorldLink Communications	1,024
139.5.0.0/22	AS24186	RailTel Corporation is an Internet Service Provider.	1,024
139.5.12.0/22	AS24186	RailTel Corporation is an Internet Service Provider.	1,024
139.5.4.0/22	AS24186	RailTel Corporation is an Internet Service Provider.	1,024
139.5.8.0/22	AS24186	RailTel Corporation is an Internet Service Provider.	1,024
139.5.180.0/22	AS26658	Room 1801,Floor 18, Johnston Plaza, No.178,Johnston Rd, WH	1,024
139.5.84.0/22	AS27381	Index Exchange Inc.	1,024
139.5.148.0/22	AS38320	PT Gudang Data Indonesia	1,024
139.5.152.0/22	AS38320	PT Max Internet Indonesia	1,024
139.5.52.0/22	AS45152	Zone Networks Pty Ltd	1,024
139.5.228.0/22	AS45775	WORLDVIEW TELECOM	1,024
139.5.168.0/22	AS4686	Progress LLC.	1,024
139.5.164.0/22	AS64095	Blue Reach Services Limited	1,024
139.5.76.0/22	AS7545	TPG Internet Pty Ltd	1,024
139.5.124.0/22	AS9268	Over the Wire Pty Ltd	1,024
139.5.188.0/22	AS132420	E2E Networks Private Limited	1,024
139.5.36.0/22	AS132768	BEYOND BROADBAND PRIVATE LIMITED	1,024
139.5.144.0/24	AS132300	NIPA TECHNOLOGY CO., LTD.	256
139.5.145.0/24	AS132300	NIPA TECHNOLOGY CO., LTD.	256
139.5.178.0/24	AS40605	ANYCONNECT INFORMATION TECHNOLOGY CO., LTD	256
139.5.179.0/24	AS40605	ANYCONNECT INFORMATION TECHNOLOGY CO., LTD	256
139.5.76.0/24	AS7545	TPG Telecoms	256
139.5.156.0/24	AS24337	SKYTEL ISP LAO	256
139.5.88.0/24	AS136787	Packethub	256
139.5.89.0/24	AS136787	Packethub	256
139.5.90.0/24	AS136787	Packethub	256
139.5.91.0/24	AS136787	Packethub	256
139.5.157.0/24	AS24337	SKYTEL ISP LAO	256
139.5.158.0/24	AS24337	SKYTEL ISP LAO	256
139.5.64.0/24	AS139501	National Crime Records Bureau	256
139.5.159.0/24	AS24337	SKYTEL ISP LAO	256
139.5.200.0/24	AS45753	Netsec	256
139.5.201.0/24	AS45753	Netsec	256
139.5.68.0/24	AS17501	Static Allocation for FNA Systems	256
139.5.69.0/24	AS17501	Static Allocation for GGC Systems	256
139.5.70.0/24	AS17501	Static Allocation for GGC Systems	256
139.5.71.0/24	AS17501	Fiber Pool	256
139.5.202.0/24	AS45753	Netsec	256
139.5.203.0/24	AS45753	Netsec	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Pingable IPs

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

IP Address	ASN	Details
139.5.173.231	AS56307 ac3, Australian Centre for Advanced Computing and Communications	`0.93ms` from Sydney, AU
139.5.172.76	AS56307 ac3, Australian Centre for Advanced Computing and Communications	`0.54ms` 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
20.106.170.103	AS8075 Microsoft Corporation	`0.49ms` from Ashburn, US
170.250.250.39	AS23089 Hotwire Communications	`6.32ms` from Atlanta, US
87.175.110.7	AS3320 Deutsche Telekom AG	`9.80ms` from Frankfurt am Main, DE
119.197.21.87	AS4766 Korea Telecom	`0.74ms` from Incheon, KR
4.224.61.215	AS8075 Microsoft Corporation	`0.16ms` from Lohogaon, IN
45.139.2.23	AS264617 GRUPO PANAGLOBAL 15 S.A	`0.19ms` from Lugano, CH
187.227.151.39	AS8151 UNINET	`9.89ms` from Mexico City, MX
110.219.189.231	AS56046 China Mobile communications corporation	`6.50ms` from Nanjing, CN
59.23.84.183	AS4766 Korea Telecom	`6.98ms` from Seoul, KR
43.249.101.151	AS133747 TRIUMPH DYNASTY Limited	`1.24ms` from Taipei, TW
46.148.169.231	AS197405 Tomkow Sp. z o.o.	`18.61ms` from Warsaw, PL
34.86.52.7	AS396982 Google LLC	`0.12ms` from Ashburn, US
125.26.73.135	AS23969 TOT Public Company Limited	`2.73ms` from Bangkok, TH
65.175.183.71	AS11776 Breezeline	`7.51ms` from Boston, US
74.140.100.135	AS10796 Charter Communications Inc	`14.81ms` from Cleveland, US
120.36.76.87	AS4134 CHINANET-BACKBONE	`4.52ms` from Fuzhou, CN
78.72.169.55	AS3301 Telia Company AB	`4.94ms` from Goeteborg, SE
61.84.76.103	AS4766 Korea Telecom	`1.43ms` from Incheon, KR
178.86.55.135	AS25019 Saudi Telecom Company JSC	`6.00ms` from Jeddah, SA
39.50.181.199	AS17557 Pakistan Telecommunication Company Limited	`4.57ms` from Karachi, PK
216.225.80.23	AS30404 Blue Stream	`3.89ms` from Miami, US
73.160.8.183	AS7922 Comcast Cable Communications, LLC	`5.19ms` from Morris Plains, US
77.74.76.7	AS206850 NEOFLEX CONSULTING JSC	`1.67ms` from Moscow, RU
58.209.75.7	AS4134 CHINANET-BACKBONE	`4.72ms` from Nanjing, CN
74.102.101.247	AS701 Verizon Business	`2.00ms` from New York City, US

Traceroute

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

traceroute -a -n -q1 -f5 139.5.172.241

traceroute to 139.5.172.241 (139.5.172.241): 64 hops max, 52 byte packets

5 [] 103.26.68.108 1.743 ms

6 [AS56307] 139.5.172.241 1.182 ms

Measurement taken from

IPinfo ProbeNet in Sydney, AU

On January 30th 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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