1. All IP Ranges
  2. 203.0.0.0/8
  3. 203.28.0.0/16
  4. AS38295  | 203.28.81.0/24

203.28.81.0/24

AS38295  ·  Content Service Provider Multihomed.

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Summary

Country Australia
Domain alphawest.com.au
ASN AS38295
Registry APNIC
ID ALPHAWEST-SERVICES-AU

WHOIS Details

inetnum:        203.28.80.0 - 203.28.83.255
netname:        ALPHAWEST-SERVICES-AU
descr:          Alphawest Services Pty Ltd
descr:          Level 3
descr:          234 Sussex Street
descr:          Sydney
descr:          NSW 2000
country:        AU
org:            ORG-ASPL3-AP
admin-c:        AA103-AP
tech-c:         AA103-AP
abuse-c:        AA1493-AP
status:         ASSIGNED PORTABLE
mnt-by:         APNIC-HM
mnt-irt:        IRT-ALPHAWEST-SERVICES-AU
last-modified:  2020-05-22T02:05:24Z
source:         APNIC

irt:            IRT-ALPHAWEST-SERVICES-AU
address:        Alphawest Services Pty Ltd
address:        Level 3, 234 Sussex St
address:        Sydney NSW 2000
e-mail:         bcsupport@optusbusiness.com.au
abuse-mailbox:  bcsupport@optusbusiness.com.au
admin-c:        AA103-AP
tech-c:         AA103-AP
auth:           # Filtered
remarks:        bcsupport@optusbusiness.com.au was validated on 2025-10-14
mnt-by:         MAINT-AU-AA103-AP
last-modified:  2025-11-18T00:29:27Z
source:         APNIC

organisation:   ORG-ASPL3-AP
org-name:       Alphawest Services Pty Ltd
org-type:       LIR
country:        AU
address:        1 Lyonpark Road
address:        Macquarie Park
phone:          +61-2-9263-5666
fax-no:         +61-7-3174-7087
e-mail:         hosting.platform.office@optus.com.au
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:37Z
source:         APNIC

role:           ABUSE ALPHAWESTSERVICESAU
country:        ZZ
address:        Alphawest Services Pty Ltd
address:        Level 3, 234 Sussex St
address:        Sydney NSW 2000
phone:          +000000000
e-mail:         bcsupport@optusbusiness.com.au
admin-c:        AA103-AP
tech-c:         AA103-AP
nic-hdl:        AA1493-AP
remarks:        Generated from irt object IRT-ALPHAWEST-SERVICES-AU
remarks:        bcsupport@optusbusiness.com.au was validated on 2025-10-14
abuse-mailbox:  bcsupport@optusbusiness.com.au
mnt-by:         APNIC-ABUSE
last-modified:  2025-10-14T21:27:44Z
source:         APNIC

person:         AlphaWest Administrator
nic-hdl:        AA103-AP
e-mail:         awadmin@alphawest.com.au
address:        Alphawest Services Pty Ltd
address:        Level 3, 234 Sussex St
address:        Sydney NSW 2000
phone:          +61292635888
fax-no:         +61292635889
country:        AU
mnt-by:         MAINT-AU-AA103-AP
last-modified:  2010-10-20T05:35:02Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.28.0.0/16

Range ASN Company Num of IPs
203.28.64.0/22 AS137074 Responsible Internet Sustainability Effort 1,024
203.28.250.0/23 AS10148 St Hilda's College 512
203.28.48.0/23 AS38719 Dreamscape Networks PTY LTD 512
203.28.202.0/23 AS138390 Trinity Grammar School 512
203.28.46.0/23 AS140211 City of Marion 512
203.28.128.0/23 AS132280 998/3 Baan On Nuch Condominium 512
203.28.191.0/24 AS133930 Grand Floridian Pty. Ltd. 256
203.28.247.0/24 AS135069 Feenix Communications Limited 256
203.28.245.0/24 AS135247 K Net Solutions Pvt Ltd 256
203.28.143.0/24 AS135553 VC Telecoms Sdn. Bhd. 256
203.28.160.0/24 AS136000 LYNHAM NETWORKS PTY. LTD 256
203.28.36.0/24 AS136518 Western Australian Industrial Relations Commission 256
203.28.238.0/24 AS136557 GoHosting 256
203.28.172.0/24 AS137049 Performance Peripherals Australasia 256
203.28.176.0/24 AS137049 Performance Peripherals Australasia 256
203.28.64.0/24 AS137074 RISE-DAVAO 256
203.28.65.0/24 AS137074 RISE-CEBU 256
203.28.66.0/24 AS137074 RISE-CEBU 256
203.28.67.0/24 AS137074 RISE-CEBU 256
203.28.63.0/24 AS141437 Officeworks Ltd 256
203.28.150.0/24 AS149164 Avondale University Limited 256
203.28.104.0/24 AS152661 ALZAF IT 256
203.28.105.0/24 AS152661 ALZAF IT 256
203.28.53.0/24 AS154203 PT DELTA SKY TECH 256
203.28.57.0/24 AS154204 Shine Effort Inc Limited 256
203.28.195.0/24 AS154329 Phoenix Business Solutions Australia Pty Ltd 256
203.28.249.0/24 AS16509 HRT SG PTE. LTD. 256
203.28.85.0/24 AS17477 Vision Australia 256
203.28.142.0/24 AS17535 Canary Technology Solutions Pty Limited 256
203.28.121.0/24 AS17766 Nexon Asia Pacific Pty Ltd 256
203.28.113.0/24 AS18390 Ai Tel Pty Ltd 256
203.28.168.0/24 AS18986 Calligo (Canada) Inc. 256
203.28.15.0/24 AS207551 Wijnand Schouten 256
203.28.15.0/24 AS207551 Wijnand Schouten 256
203.28.15.0/24 AS216456 Wijnand Schouten 256
203.28.15.0/24 AS216456 Wijnand Schouten 256
203.28.18.0/24 AS23028 Information Technology Services 256
203.28.14.0/24 AS23886 Port Waratah Coal Services 256
203.28.122.0/24 AS2764 R.A.G Productions Pty.Ltd. 256
203.28.166.0/24 AS2764 PG Lion ReSources Aust Pty Ltd 256
203.28.173.0/24 AS2764 Professional Advantage Pty Limited 256
203.28.171.0/24 AS29222 Swissdotnet SA 256
203.28.50.0/24 AS38719 Dreamscape Networks PTY LTD 256
203.28.90.0/24 AS38880 Klegridge Pty Ltd 256
203.28.51.0/24 AS45671 Servers Australia Pty Ltd 256
203.28.216.0/24 AS45701 GlobalXtreme 256
203.28.217.0/24 AS45701 GlobalXtreme 256
203.28.218.0/24 AS45701 GlobalXtreme 256
203.28.219.0/24 AS45701 GlobalXtreme 256
203.28.159.0/24 AS4739 iiNet Limited 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
Read more

Pingable IPs

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

IP Address ASN Details
203.28.81.241 AS38295 Content Service Provider Multihomed. 0.23ms 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
3.94.33.136 AS14618 Amazon.com, Inc. 0.54ms from Ashburn, US
73.200.221.72 AS7922 Comcast Cable Communications, LLC 7.46ms from Ashburn, US
118.172.222.104 AS23969 TOT Public Company Limited 10.28ms from Bangkok, TH
35.187.89.40 AS396982 Google LLC 0.15ms from Brussels, BE
188.156.157.200 AS5483 Magyar Telekom Plc. 3.12ms from Budapest, HU
41.237.88.200 AS8452 TE-AS 7.56ms from Cairo, EG
206.127.43.40 AS11114 Wintek Corporation 5.03ms from Chicago, US
111.230.63.232 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.94ms from Guangzhou, CN
185.226.95.200 AS205196 BIG CORE LLC 0.81ms from Istanbul, TR
47.136.150.168 AS5650 Frontier Communications of America, Inc. 5.79ms from Los Angeles, US
79.165.66.216 AS8615 Central Telegraph Public Joint-stock Company 1.90ms from Moscow, RU
181.99.64.72 AS7303 Telecom Argentina S.A. 3.08ms from Rosario, AR
188.202.217.184 AS1136 KPN B.V. 13.75ms from Amsterdam, NL
3.238.83.152 AS14618 Amazon.com, Inc. 0.73ms from Ashburn, US
83.112.123.168 AS3215 Orange S.A. 10.86ms from Frankfurt am Main, DE
182.220.192.232 AS17858 LG POWERCOMM 2.10ms from Incheon, KR
180.0.163.8 AS4713 NTT DOCOMO BUSINESS,Inc. 2.66ms from Osaka, JP
85.128.150.248 AS15967 Nazwa.pl Sp.z.o.o. 0.32ms from Sao Paulo, BR
14.4.146.72 AS17858 LG POWERCOMM 1.78ms from Seoul, KR
14.90.122.120 AS4766 Korea Telecom 1.63ms from Seoul, KR
14.77.52.8 AS4766 Korea Telecom 6.93ms from Seoul, KR
34.83.100.184 AS396982 Google LLC 0.16ms from The Dalles, US
114.162.238.232 AS4713 NTT DOCOMO BUSINESS,Inc. 15.86ms from Tokyo, JP
178.42.131.120 AS5617 Orange Polska Spolka Akcyjna 7.03ms from Warsaw, PL
94.110.91.56 AS47377 Orange Belgium SA 8.68ms from Brussels, BE

Traceroute

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

$
traceroute -a -n -q1 -f2 203.28.81.241
traceroute to 203.28.81.241 (203.28.81.241): 64 hops max, 52 byte packets
2 [AS7578] 103.137.13.4 301.015 ms
3 [AS7474] 220.101.73.37 1.935 ms
4 *
5 *
6 [AS7474] 124.19.61.67 2.115 ms
7 [AS7474] 61.88.90.26 0.232 ms
Measurement taken from IPinfo ProbeNet in Sydney, 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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