1. All IP Ranges
  2. 203.0.0.0/8
  3. 203.57.0.0/16
  4. AS7474  | 203.57.223.0/24

203.57.223.0/24

AS7474  ·  SingTel Optus Pty Ltd

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Summary

Country Australia
Domain csgi.com
ASN AS7474
Registry APNIC
ID CSGI-AU

WHOIS Details

inetnum:        203.57.223.0 - 203.57.223.255
netname:        CSGI-AU
descr:          CSG International Pty Ltd
country:        AU
org:            ORG-IBAP1-AP
admin-c:        AH274-AP
tech-c:         AH274-AP
abuse-c:        AC2655-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-AU-CSGI
mnt-irt:        IRT-CSGI-AU
last-modified:  2023-02-16T04:25:00Z
source:         APNIC

irt:            IRT-CSGI-AU
address:        Ground Floor, 545 Queen St Brisbane 4000
e-mail:         andy.hollowood@csgi.com
abuse-mailbox:  andy.hollowood@csgi.com
admin-c:        AH274-AP
tech-c:         AH274-AP
auth:           # Filtered
remarks:        andy.hollowood@csgi.com was validated on 2025-10-21
mnt-by:         MAINT-AU-CSGI
last-modified:  2025-11-18T00:36:44Z
source:         APNIC

organisation:   ORG-IBAP1-AP
org-name:       CSG International Pty Ltd
org-type:       LIR
country:        AU
address:        Ground Floor, 545 Queen St.
phone:          +61-7-3218-8888
fax-no:         +61-7-3218-8899
e-mail:         andy.hollowood@csgi.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:00Z
source:         APNIC

role:           ABUSE CSGIAU
country:        ZZ
address:        Ground Floor, 545 Queen St Brisbane 4000
phone:          +000000000
e-mail:         andy.hollowood@csgi.com
admin-c:        AH274-AP
tech-c:         AH274-AP
nic-hdl:        AC2655-AP
remarks:        Generated from irt object IRT-CSGI-AU
remarks:        andy.hollowood@csgi.com was validated on 2025-10-21
abuse-mailbox:  andy.hollowood@csgi.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-10-21T21:13:37Z
source:         APNIC

person:         Andrew Hollowood
address:        Level 4, 215 Adelaide St Brisbane 4000
country:        AU
phone:          +61-7-3218-8888
fax-no:         +61-7-3218-8999
e-mail:         andy.hollowood@csgi.com
nic-hdl:        AH274-AP
mnt-by:         MAINT-AU-AHOLLOWOOD
last-modified:  2018-02-13T03:36:34Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.57.0.0/16

Range ASN Company Num of IPs
203.57.160.0/19 AS7575 University of the Sunshine Coast 8,192
203.57.128.0/20 AS17635 GoldNet Pty Ltd 4,096
203.57.224.0/20 AS58519 CHINANET Guangdong province network 4,096
203.57.208.0/21 AS7545 iiNet Limited 2,048
203.57.152.0/22 AS23646 Clarinet Internet Solutions Pty Ltd 1,024
203.57.70.0/23 AS58519 CHINANET FUJIAN PROVINCE NETWORK 512
203.57.114.0/23 AS133159 Mammoth Media Pty Ltd 512
203.57.82.0/23 AS137409 GSL Networks Pty LTD 512
203.57.0.0/23 AS7600 Escapenet Pty Ltd 512
203.57.44.0/23 AS38220 Amaze Intelligence Pty Ltd 512
203.57.254.0/23 AS58519 CHINANET FUJIAN PROVINCE NETWORK 512
203.57.12.0/23 AS58519 CHINANET FUJIAN PROVINCE NETWORK 512
203.57.48.0/23 AS18390 Spintel Pty Ltd 512
203.57.40.0/23 AS401335 Minerdude LLC 512
203.57.50.0/23 AS133159 Mammoth Media Pty Ltd 512
203.57.29.0/24 AS138015 Daryl Collins 256
203.57.38.0/24 AS140702 Special Service Provider 256
203.57.88.0/24 AS14618 CLICKFUNNELS 256
203.57.110.0/24 AS18986 Calligo (Canada) Inc. 256
203.57.207.0/24 AS24110 IVE GROUP AUSTRALIA PTY LTD 256
203.57.147.0/24 AS24436 Brisbane Boys' College 256
203.57.4.0/24 AS38049 Collins Foods Group 256
203.57.15.0/24 AS38611 Bendigo Community Telco Limited 256
203.57.204.0/24 AS45427 Webzone Holdings Pty Ltd 256
203.57.8.0/24 AS45692 DFSI Spatial Services 256
203.57.81.0/24 AS4826 Creative Broadcasters Ltd 256
203.57.203.0/24 AS55561 VOCUS PTY LTD 256
203.57.101.0/24 AS58519 CHINANET FUJIAN PROVINCE NETWORK 256
203.57.109.0/24 AS58519 CHINANET FUJIAN PROVINCE NETWORK 256
203.57.123.0/24 AS58519 CHINANET FUJIAN PROVINCE NETWORK 256
203.57.157.0/24 AS58519 CHINANET FUJIAN PROVINCE NETWORK 256
203.57.200.0/24 AS58519 CHINANET FUJIAN PROVINCE NETWORK 256
203.57.202.0/24 AS58519 CHINANET FUJIAN PROVINCE NETWORK 256
203.57.206.0/24 AS58519 CHINANET FUJIAN PROVINCE NETWORK 256
203.57.222.0/24 AS58519 CHINANET FUJIAN PROVINCE NETWORK 256
203.57.249.0/24 AS58519 CHINANET FUJIAN PROVINCE NETWORK 256
203.57.28.0/24 AS58519 CHINANET FUJIAN PROVINCE NETWORK 256
203.57.39.0/24 AS58519 CHINANET FUJIAN PROVINCE NETWORK 256
203.57.46.0/24 AS58519 CHINANET FUJIAN PROVINCE NETWORK 256
203.57.5.0/24 AS58519 CHINANET FUJIAN PROVINCE NETWORK 256
203.57.58.0/24 AS58519 CHINANET FUJIAN PROVINCE NETWORK 256
203.57.6.0/24 AS58519 CHINANET FUJIAN PROVINCE NETWORK 256
203.57.11.0/24 AS63182 ARGONAUT MANAGEMENT SERVICES, INC 256
203.57.120.0/24 AS7545 THE TRADING NET AUST (TNA) PTY. LTD. 256
203.57.156.0/24 AS9268 Ultrahost Pty Ltd 256
203.57.78.0/24 AS10083 Cynergic National Network 256
203.57.23.0/24 AS9913 Internet Information Group 256
203.57.144.0/24 AS10143 Hi-Speed Networking 256
203.57.126.0/24 AS10214 Pentanet Limited 256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity
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Pingable IPs

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

IP Address ASN Details
203.57.223.1 AS7474 SingTel Optus Pty Ltd 1.71ms from Brisbane, 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
50.37.46.104 AS5650 Frontier Communications of America, Inc. 6.39ms from Chicago, US
101.66.130.40 AS4837 CHINA UNICOM China169 Backbone 11.27ms from Hangzhou, CN
27.79.59.232 AS7552 Viettel Group 16.41ms from Ho Chi Minh City, VN
79.148.70.200 AS3352 TELEFONICA DE ESPANA S.A.U. 1.32ms from Madrid, ES
94.75.171.232 AS12389 PJSC Rostelecom 11.76ms from Moscow, RU
52.67.239.184 AS16509 Amazon.com, Inc. 0.15ms from Osasco, BR
186.101.180.120 AS27947 Telconet S.A 1.26ms from Quito, EC
82.51.169.200 AS3269 Telecom Italia S.p.A. 2.00ms from Rome, IT
213.237.33.24 AS9158 Telenor A/S 19.24ms from Skanderborg, DK
121.44.237.120 AS7545 TPG Telecom Limited 5.08ms from Sydney, AU
42.5.182.168 AS4837 CHINA UNICOM China169 Backbone 9.51ms from Tieling, CN
113.192.153.24 AS7514 Computer Engineering & Consulting, Ltd. 1.25ms from Tokyo, JP
151.145.137.104 AS20115 Charter Communications LLC 0.79ms from Ashburn, US
20.85.127.120 AS8075 Microsoft Corporation 0.45ms from Boydton, US
68.51.212.216 AS7922 Comcast Cable Communications, LLC 11.13ms from Flint, US
31.53.196.232 AS2856 British Telecommunications PLC 1.61ms from London, GB
45.253.203.216 AS45062 Netease-Network 3.17ms from Ningbo, CN
66.177.44.120 AS7922 Comcast Cable Communications, LLC 8.53ms from Orlando, US
76.123.110.8 AS7922 Comcast Cable Communications, LLC 6.92ms from Orlando, US
51.91.178.152 AS16276 OVH SAS 0.08ms from Roubaix, FR
2.69.199.152 AS44034 Hi3G Access AB 19.59ms from Stockholm, SE
134.180.211.72 AS2519 ARTERIA Networks Corporation 2.64ms from Tokyo, JP
194.92.71.120 AS207684 BAJTNET SPOLKA Z OGRANICZONA ODPOWIEDZIALNOSCIA 5.59ms from Warsaw, PL
83.10.168.216 AS5617 Orange Polska Spolka Akcyjna 8.15ms from Warsaw, PL
194.245.122.56 AS5517 CSL Computer Service Langenbach GmbH 3.58ms from Amsterdam, NL

Traceroute

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

$
traceroute -a -n -q1 203.57.223.1
traceroute to 203.57.223.1 (203.57.223.1): 64 hops max, 52 byte packets
3 [AS7474] 220.101.74.89 1.952 ms
4 *
6 [AS7474] 203.57.223.1 1.717 ms
Measurement taken from IPinfo ProbeNet in Brisbane, AU
On

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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