203.121.205.0/24

AS45763  ·  Opticomm Co Pty Ltd

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Summary

Country Australia
Domain opticomm.net.au
ASN AS45763
Registry APNIC
ID OPTICOMMCOPTYLTD-AU

WHOIS Details

inetnum:        203.121.192.0 - 203.121.207.255
netname:        OPTICOMMCOPTYLTD-AU
descr:          Opticomm Co Pty Ltd
country:        AU
admin-c:        DA555-AP
tech-c:         DA555-AP
abuse-c:        AO356-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-OPTICOMMCOPTYLTD-AU
mnt-irt:        IRT-OPTICOMMCOPTYLTD-AU
last-modified:  2025-03-27T04:33:17Z
source:         APNIC

irt:            IRT-OPTICOMMCOPTYLTD-AU
address:        22 Salmon Street, Port Melbourne. VIC. 3207
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        DA555-AP
tech-c:         DA555-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-08-20
remarks:        [email protected] was validated on 2025-10-23
mnt-by:         MAINT-OPTICOMMCOPTYLTD-AU
last-modified:  2025-11-18T00:32:34Z
source:         APNIC

role:           ABUSE OPTICOMMCOPTYLTDAU
country:        ZZ
address:        22 Salmon Street, Port Melbourne. VIC. 3207
phone:          +000000000
e-mail:         [email protected]
admin-c:        DA555-AP
tech-c:         DA555-AP
nic-hdl:        AO356-AP
remarks:        Generated from irt object IRT-OPTICOMMCOPTYLTD-AU
remarks:        [email protected] was validated on 2025-08-20
remarks:        [email protected] was validated on 2025-10-23
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-10-23T22:48:55Z
source:         APNIC

person:         Domain Administrator
address:        22 Salmon Street, Port Melbourne. VIC. 3207
country:        AU
phone:          +61-3-9024-9500
e-mail:         [email protected]
nic-hdl:        DA555-AP
mnt-by:         MAINT-OPTICOMMCOPTYLTD-AU
last-modified:  2020-02-21T07:45:06Z
source:         APNIC

route:          203.121.192.0/20
origin:         AS45763
descr:          Opticomm Co Pty Ltd 44 Currie Street Level 1
mnt-by:         MAINT-OPTICOMMCOPTYLTD-AU
last-modified:  2025-03-27T05:12:10Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.121.0.0/16

Range ASN Company Num of IPs
203.121.64.0/18 AS9930 TT DOTCOM SDN BHD 16,384
203.121.224.0/19 AS18419 DA DA BROADBAND LTD. 8,192
203.121.0.0/19 AS9930 TT DOTCOM SDN BHD 8,192
203.121.32.0/19 AS9930 TT DOTCOM SDN BHD 8,192
203.121.128.0/20 AS4765 Pacific Internet Pte Ltd 4,096
203.121.160.0/22 AS4765 Pacific Internet Pte Ltd 1,024
203.121.164.0/23 AS4765 Pacific Internet Pte Ltd 512
203.121.134.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.135.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.136.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.137.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.138.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.139.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.140.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.141.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.142.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.143.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.145.0/24 AS4765 Pacific Internet Pte Ltd 256
203.121.148.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.149.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.150.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.151.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.160.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.161.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.162.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.163.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.164.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.172.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.173.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.178.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.179.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.186.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.225.0/24 AS18419 DaDa Broadband Ltd. 256
203.121.129.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.128.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.132.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.133.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256

Hosted domains

There are 19 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
203.121.205.208 amz.net.au 18
203.121.205.157 ohmydave.com 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

Pingable IPs

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

IP Address ASN Details
203.121.205.124 AS45763 Opticomm Co Pty Ltd 0.88ms 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
105.157.79.152 AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM 5.14ms from Casablanca, MA
98.54.199.152 AS7922 Comcast Cable Communications, LLC 14.85ms from Dallas, US
97.122.124.120 AS209 CenturyLink Communications, LLC 2.29ms from Denver, US
109.200.208.216 AS49544 i3D.net B.V 0.20ms from New York City, US
100.37.42.24 AS701 Verizon Business 3.04ms from New York City, US
92.124.144.8 AS12389 PJSC Rostelecom 8.44ms from Novosibirsk, RU
184.103.153.88 AS209 CenturyLink Communications, LLC 2.25ms from Phoenix, US
54.88.79.152 AS14618 Amazon.com, Inc. 0.23ms from Reston, US
18.234.163.168 AS14618 Amazon.com, Inc. 0.43ms from Reston, US
2.197.125.184 AS16232 Telecom Italia S.p.A. 15.24ms from Rome, IT
187.172.100.24 AS8151 UNINET 17.62ms from Santiago de Queretaro, MX
126.47.147.168 AS17676 SoftBank Corp. 5.39ms from Tokyo, JP
93.138.125.152 AS5391 Hrvatski Telekom d.d. 5.21ms from Zagreb, HR
213.179.114.72 AS12479 Orange Espagne SA 5.92ms from Zaragoza, ES
186.16.64.72 AS23201 Telecel S.A. 0.86ms from Asuncion, PY
143.60.12.88 AS40723 The University of Virginia's College at Wise 11.66ms from Atlanta, US
81.246.198.168 AS5432 Proximus NV 2.45ms from Brussels, BE
201.177.144.56 AS22927 Telefonica de Argentina 2.20ms from Buenos Aires, AR
174.16.129.24 AS209 CenturyLink Communications, LLC 1.74ms from Denver, US
149.241.186.232 AS5607 Sky UK Limited 1.50ms from Erith, GB
89.247.29.168 AS8881 1&1 Versatel GmbH 4.80ms from Frankfurt am Main, DE
178.80.38.152 AS35819 Etihad Etisalat, a joint stock company 3.74ms from Manama, BH
18.205.48.152 AS14618 Amazon.com, Inc. 0.21ms from Reston, US
101.66.168.8 AS4837 CHINA UNICOM China169 Backbone 9.21ms from Shanghai, CN
52.196.144.56 AS16509 Amazon.com, Inc. 0.18ms from Tokyo, JP

Traceroute

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

$
traceroute -a -n -q1 -f5 203.121.205.247
traceroute to 203.121.205.247 (203.121.205.247): 64 hops max, 52 byte packets
5 [] 202.77.90.17 0.828 ms
Measurement taken from IPinfo ProbeNet in Melbourne, 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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