203.6.0.0/18

AS7474  ·  SingTel Optus Pty Ltd

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Summary

Country Australia
Domain defence.gov.au
ASN AS7474
Registry APNIC
ID AUSDEFENCE

WHOIS Details

inetnum:        203.6.0.0 - 203.6.63.255
netname:        AUSDEFENCE
descr:          Australian Department of Defence
descr:          Bonshaw Rd, HMAS Harman
descr:          Canberra ACT 2600
country:        AU
org:            ORG-ADO1-AP
admin-c:        FMGR1-AP
tech-c:         DHM2-AP
abuse-c:        AA2247-AP
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-HM
mnt-lower:      MAINT-AU-DEFENCE
mnt-routes:     MAINT-AU-DEFENCE
mnt-irt:        IRT-AUS-DEFENCE-AU
last-modified:  2021-01-15T01:28:25Z
source:         APNIC

irt:            IRT-AUS-DEFENCE-AU
address:        Department of Defence
address:        Bonshaw Rd, HMAS Harman
address:        Cannberra, ACT 2600
address:        Australia
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        RJ190-AP
tech-c:         RJ190-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-09-17
mnt-by:         MAINT-AU-DEF-MGMTCONFIG
last-modified:  2025-11-18T00:27:25Z
source:         APNIC

organisation:   ORG-ADO1-AP
org-name:       Australian Defence Organisation
org-type:       LIR
country:        AU
address:        Anzac Park West
address:        PO Box 7953
phone:          +61-2-6265-7647
fax-no:         +61-2-6265-53840
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:17Z
source:         APNIC

role:           ABUSE AUSDEFENCEAU
country:        ZZ
address:        Department of Defence
address:        Bonshaw Rd, HMAS Harman
address:        Cannberra, ACT 2600
address:        Australia
phone:          +000000000
e-mail:         [email protected]
admin-c:        RJ190-AP
tech-c:         RJ190-AP
nic-hdl:        AA2247-AP
remarks:        Generated from irt object IRT-AUS-DEFENCE-AU
remarks:        [email protected] was validated on 2025-09-17
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-17T02:15:21Z
source:         APNIC

person:         ADF Hostmaster
address:        Australian Department of Defence
address:        109 Kent St, Deakin
address:        Canberra ACT 2600
country:        AU
phone:          +61 02 6265 8598
e-mail:         [email protected]
nic-hdl:        DHM2-AP
mnt-by:         MAINT-AU-DEFENCE
last-modified:  2008-09-04T07:29:32Z
source:         APNIC

person:         ADF Firewall Manager
address:        Australian Department of Defence
address:        109 Kent St, Deakin
address:        Canberra ACT 2600
country:        AU
phone:          +61 02 6265 8598
fax-no:         +61 02 6265 8924
e-mail:         [email protected]
nic-hdl:        FMGR1-AP
mnt-by:         MAINT-AU-DEFENCE
last-modified:  2008-09-04T07:29:32Z
source:         APNIC

route:          203.6.0.0/18
origin:         AS7474
descr:          Australian Defence Organisation APW-G-034 PO Box 7953
mnt-by:         MAINT-AU-DEFENCE
last-modified:  2020-10-22T04:20:17Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.6.0.0/16

Range ASN Company Num of IPs
203.6.160.0/19 AS18431 Department of Foreign Affairs and Trade 8,192
203.6.224.0/20 AS58519 CHINANET Guangdong province network 4,096
203.6.148.0/23 AS55684 Universitas Sebelas Maret 512
203.6.146.0/23 AS136572 The Office of the Chief Information Officer (OCIO) 512
203.6.144.0/23 AS7575 Australian War Memorial 512
203.6.141.0/24 AS56132 Monash University 256
203.6.137.0/24 AS7545 Bluechip Infotech Pty Ltd 256
203.6.143.0/24 AS7545 BMW AUSTRALIA LTD 256
203.6.241.0/24 AS4764 aboc IT Consulting 256
203.6.209.0/24 AS135003 MISPL Internet Services (Pvt) Ltd 256
203.6.210.0/24 AS135003 MISPL Internet Services (Pvt) Ltd 256
203.6.211.0/24 AS135003 MISPL Internet Services (Pvt) Ltd 256
203.6.250.0/24 AS24436 Anglican Church Grammar School 256
203.6.251.0/24 AS24476 RURAL PRESS PTY LIMITED 256
203.6.246.0/24 AS45475 Bluff Trading Ltd. 256
203.6.208.0/24 AS135003 MISPL Internet Services (Pvt) Ltd 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

Pingable IPs

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

IP Address ASN Details
203.6.5.1 AS7474 SingTel Optus Pty Ltd 65.81ms from Sydney, AU
203.6.24.2 AS7474 SingTel Optus Pty Ltd 16.92ms from Sydney, AU
203.6.58.249 AS7474 SingTel Optus Pty Ltd 27.70ms from Melbourne, AU
203.6.3.1 AS7474 SingTel Optus Pty Ltd 55.61ms from Sydney, AU
203.6.61.98 AS7474 SingTel Optus Pty Ltd 14.76ms from Sydney, AU
203.6.22.1 AS7474 SingTel Optus Pty Ltd 71.07ms from Sydney, AU
203.6.20.65 AS7474 SingTel Optus Pty Ltd 87.52ms from Sydney, AU
203.6.32.233 AS9466 UUNET Japan Limited 5.68ms from Sydney, AU
203.6.31.219 AS9466 UUNET Japan Limited 1.44ms from Sydney, AU
203.6.33.212 AS9466 UUNET Japan Limited 5.74ms from Sydney, AU
203.6.62.162 AS7474 SingTel Optus Pty Ltd 20.77ms from Sydney, AU
203.6.63.1 AS7474 SingTel Optus Pty Ltd 11.27ms 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
99.186.250.2 AS7018 AT&T Enterprises, LLC 10.21ms from Atlanta, US
114.247.226.210 AS4808 China Unicom Beijing Province Network 3.87ms from Beijing, CN
200.117.184.66 AS7303 Telecom Argentina S.A. 1.66ms from Buenos Aires, AR
96.75.234.242 AS7922 Comcast Cable Communications, LLC 11.73ms from Chicago, US
13.59.225.50 AS16509 Amazon.com, Inc. 0.17ms from Columbus, US
37.114.39.2 AS207252 Realtox Media 0.12ms from Duesseldorf, DE
84.190.156.162 AS3320 Deutsche Telekom AG 7.00ms from Frankfurt am Main, DE
202.104.252.194 AS4134 CHINANET-BACKBONE 6.76ms from Guangzhou, CN
43.225.47.162 AS133199 SonderCloud Limited 1.02ms from Hong Kong, HK
24.175.180.18 AS11427 Charter Communications Inc 9.77ms from Houston, US
85.15.123.194 AS34896 Vostoktelecom Telephone Company Limited Liability Company 1.05ms from Khabarovsk, RU
83.49.226.34 AS3352 TELEFONICA DE ESPANA S.A.U. 11.63ms from Madrid, ES
68.83.226.50 AS7922 Comcast Cable Communications, LLC 8.24ms from Morris Plains, US
89.188.98.2 AS3175 Citytelecom LLC 0.36ms from Moscow, RU
76.122.55.194 AS7922 Comcast Cable Communications, LLC 6.84ms from Orlando, US
144.52.199.162 AS4134 CHINANET-BACKBONE 10.35ms from Qingdao, CN
54.91.213.114 AS14618 Amazon.com, Inc. 0.23ms from Reston, US
44.204.122.2 AS14618 Amazon.com, Inc. 0.19ms from Reston, US
189.107.202.194 AS7738 V tal 2.50ms from Rio de Janeiro, BR
82.53.167.210 AS3269 Telecom Italia S.p.A. 2.31ms from Rome, IT
107.137.68.130 AS7018 AT&T Enterprises, LLC 4.29ms from San Jose, US
125.241.202.194 AS17858 LG POWERCOMM 6.93ms from Seoul, KR
60.247.69.66 AS4847 China Networks Inter-Exchange 5.08ms from Tianjin, CN
130.73.62.2 AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. 0.68ms from Berlin, DE
208.88.39.2 AS32032 Orgill, Inc. 12.79ms from Dallas, US

Traceroute

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

$
traceroute -a -n -q1 -m8 203.6.15.168
traceroute to 203.6.15.168 (203.6.15.168): 8 hops max, 52 byte packets
5 [AS7474] 59.154.58.145 18.209 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Perth, AU
On

What are IP address ranges?

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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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