203.27.101.0/24

AS4764 · Aussie Broadband

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Summary

Country	Australia
Domain	pobox.com
ASN	AS4764
Registry	APNIC
ID	GPSTERN-AU

WHOIS Details

inetnum:        203.27.101.0 - 203.27.101.255
netname:        GPSTERN-AU
descr:          G. P. STERN PTY LTD
country:        AU
org:            ORG-GPSP1-AP
admin-c:        GPSP1-AP
tech-c:         GPSP1-AP
abuse-c:        AG1194-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-GPSTERNPTYLTD-AU
mnt-irt:        IRT-GPSTERNPTYLTD-AU
last-modified:  2023-08-16T13:22:32Z
source:         APNIC

irt:            IRT-GPSTERNPTYLTD-AU
address:        PO Box 43, Maroubra NSW 2035
e-mail:         gstern@pobox.com
abuse-mailbox:  gstern@pobox.com
admin-c:        GPSP1-AP
tech-c:         GPSP1-AP
auth:           # Filtered
remarks:        gstern@pobox.com was validated on 2025-04-16
mnt-by:         MAINT-GPSTERNPTYLTD-AU
last-modified:  2025-09-04T07:58:49Z
source:         APNIC

organisation:   ORG-GPSP1-AP
org-name:       G. P. STERN PTY LTD
org-type:       LIR
country:        AU
address:        PO Box 43
phone:          +61-418-640-015
e-mail:         gstern.au@gmail.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:19:08Z
source:         APNIC

role:           ABUSE GPSTERNPTYLTDAU
country:        ZZ
address:        PO Box 43, Maroubra NSW 2035
phone:          +000000000
e-mail:         gstern@pobox.com
admin-c:        GPSP1-AP
tech-c:         GPSP1-AP
nic-hdl:        AG1194-AP
remarks:        Generated from irt object IRT-GPSTERNPTYLTD-AU
remarks:        gstern@pobox.com was validated on 2025-04-16
abuse-mailbox:  gstern@pobox.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-04-16T15:21:20Z
source:         APNIC

role:           G P STERN PTY LTD administrator
address:        PO Box 43, Maroubra NSW 2035
country:        AU
phone:          +61-418-640-015
e-mail:         gstern@pobox.com
admin-c:        GPSP1-AP
tech-c:         GPSP1-AP
nic-hdl:        GPSP1-AP
mnt-by:         MAINT-GPSTERNPTYLTD-AU
last-modified:  2023-01-04T01:31:40Z
source:         APNIC

route:          203.27.101.0/24
origin:         AS4764
descr:          G. P. STERN PTY LTD PO Box 43
mnt-by:         MAINT-GPSTERNPTYLTD-AU
last-modified:  2025-02-17T08:16:10Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.27.0.0/16

Range	ASN	Company	Num of IPs
203.27.128.0/18	AS1221	Telstra Limited	16,384
203.27.238.0/23	AS135399	Blackmores Ltd	512
203.27.104.0/23	AS58734	Brisbane Convention and Exhibition Centre	512
203.27.106.0/23	AS137409	GSL Networks Pty LTD	512
203.27.42.0/23	AS136154	Rockhampton City Council	512
203.27.72.0/24	AS1221	Glencore Australia Holdings Pty Ltd	256
203.27.118.0/24	AS132847	Network Solutions Group Pty Ltd	256
203.27.92.0/24	AS133758	Knowledge by Design Pty Ltd	256
203.27.96.0/24	AS135409	Kacific Broadband Satellites Pte ltd	256
203.27.97.0/24	AS135409	Kacific Broadband Satellites Pte ltd	256
203.27.11.0/24	AS135893	CAVAL Limited	256
203.27.77.0/24	AS136518	Department of Commerce (WA)	256
203.27.18.0/24	AS137267	CBROS Technologies Limited	256
203.27.106.0/24	AS137409	GSL Networks Pty LTD - Singapore	256
203.27.107.0/24	AS137409	GSL Networks Pty LTD - Singapore	256
203.27.126.0/24	AS151499	Australian Public Access Network Association	256
203.27.34.0/24	AS154248	PT Telemedia Cakra Nusantara	256
203.27.201.0/24	AS16276	Server Pro Sweden AB	256
203.27.235.0/24	AS17436	ICICIBank Ltd, India	256
203.27.231.0/24	AS17551	Anycast Holdings Pty Ltd	256
203.27.98.0/24	AS17807	Queensland Art Gallery	256
203.27.44.0/24	AS23727	Managed Solutions Internet	256
203.27.199.0/24	AS23854	NINE ENTERTAINMENT CO. PTY LTD	256
203.27.78.0/24	AS23871	WarpSpeed Computers Pty. Ltd.	256
203.27.30.0/24	AS2764	Ashurst Australia Services Pty Limited	256
203.27.58.0/24	AS29222	E-DOOR SARL	256
203.27.21.0/24	AS38084	Ethan Group Pty Ltd	256
203.27.116.0/24	AS38195	SUPERLOOP (AUSTRALIA) PTY LTD	256
203.27.62.0/24	AS38572	Mater Misericordiae Limited	256
203.27.60.0/24	AS45780	Vigen Pty Ltd	256
203.27.225.0/24	AS4739	DEPARTMENT FOR EDUCATION	256
203.27.5.0/24	AS4826	City Of Perth	256
203.27.52.0/24	AS4826	City of Salisbury	256
203.27.127.0/24	AS55467	Ice media Pty. Ltd.	256
203.27.87.0/24	AS56113	Challenger Group Services Ltd	256
203.27.197.0/24	AS7545	iiNet Limited	256
203.27.198.0/24	AS7545	iiNet Limited	256
203.27.63.0/24	AS7575	Ivanhoe Grammer School	256
203.27.47.0/24	AS7637	State Library of Victoria	256
203.27.19.0/24	AS800	WorldVu Australia Pty Ltd.	256
203.27.70.0/24	AS9009	Formosa Sydney Pty Limited	256
203.27.223.0/24	AS10143	C3 Church Sydney Ltd	256
203.27.67.0/24	AS9627	TCR Holdings Limted.	256
203.27.253.0/24	AS10753	Kellogg (AUST) Pty Ltd.	256
203.27.193.0/24	AS1221	Victoria State Emergency Service Authority	256
203.27.56.0/24	AS1221	RPMGLOBAL HOLDINGS LIMITED	256
203.27.69.0/24	AS1221	Telstra Limited	256

Hosted domains

There are 41 domain names hosted across 38 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.27.101.60	netport.net.au	4
203.27.101.71	ausmail.com	1
203.27.101.53	egg-free.com	1
203.27.101.78	astleylaw.com.au	1
203.27.101.54	addfail.net	1
203.27.101.92	ausfone.net	1
203.27.101.95	shaturaski.net	1
203.27.101.94	kosheraustralia.net	1
203.27.101.86	ausfone.net.au	1
203.27.101.72	ausmail.net	1
203.27.101.64	kosheroz.net	1
203.27.101.59	bcoz.net.au	1
203.27.101.65	kosheroz.org	1
203.27.101.55	fnq.net	1
203.27.101.63	kosheroz.com	1
203.27.101.66	kosheroz.com.au	1
203.27.101.74	blue-water.com.au	1
203.27.101.58	ams4sms.com	1
203.27.101.20	ebmil.com	1
203.27.101.93	kosheraustralia.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

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Pingable IPs

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

IP Address	ASN	Details
203.27.101.1	AS4764 Aussie Broadband	`3.35ms` 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
70.75.233.232	AS6327 Shaw Communications Inc.	`9.04ms` from Calgary, CA
34.248.124.184	AS16509 Amazon.com, Inc.	`0.21ms` from Dublin, IE
94.114.198.104	AS3209 Vodafone GmbH	`10.23ms` from Frankfurt am Main, DE
203.195.139.248	AS45090 Shenzhen Tencent Computer Systems Company Limited	`2.00ms` from Guangzhou, CN
14.227.9.200	AS45899 VNPT Corp	`4.52ms` from Ho Chi Minh City, VN
111.94.229.216	AS23700 Linknet-Fastnet ASN	`3.37ms` from Jakarta, ID
84.90.218.8	AS13156 NOWO COMMUNICATIONS, S.A.	`10.78ms` from Lisbon, PT
34.97.147.232	AS396982 Google LLC	`0.10ms` from Osaka, JP
195.160.184.216	AS35007 Miconet Sp. z o.o.	`6.48ms` from Poznan, PL
52.1.232.40	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
201.124.52.8	AS8151 UNINET	`3.83ms` from Santiago de Queretaro, MX
211.218.120.56	AS4766 Korea Telecom	`3.07ms` from Seoul, KR
14.37.212.72	AS4766 Korea Telecom	`1.34ms` from Seoul, KR
195.202.214.24	AS6730 Sunrise GmbH	`12.03ms` from Zuerich, CH
197.39.206.8	AS8452 TE-AS	`3.62ms` from Cairo, EG
111.231.196.232	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.81ms` from Chengdu, CN
64.44.57.200	AS20278 Nexeon Technologies, Inc.	`0.20ms` from Chicago, US
13.226.254.232	AS16509 Amazon.com, Inc.	`0.09ms` from Denver, US
174.29.211.56	AS209 CenturyLink Communications, LLC	`1.99ms` from Denver, US
102.160.71.232	AS30999 EMTEL LIMITED	`7.30ms` from Ebene, MU
31.166.68.120	AS35819 Etihad Etisalat, a joint stock company	`2.54ms` from Jeddah, SA
103.232.166.104	AS9808 China Mobile Communications Group Co., Ltd.	`3.54ms` from Lanzhou, CN
177.254.182.232	AS27831 Colombia Móvil	`8.67ms` from Medellin, CO
73.124.27.56	AS7922 Comcast Cable Communications, LLC	`8.03ms` from Miami, US
153.35.243.184	AS4837 CHINA UNICOM China169 Backbone	`5.29ms` from Nanjing, CN

Traceroute

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

traceroute -a -n -q1 -f4 203.27.101.1

traceroute to 203.27.101.1 (203.27.101.1): 64 hops max, 52 byte packets

4 [AS3356] 4.69.206.178 170.871 ms

5 [AS3356] 8.245.2.186 165.981 ms

6 *

7 [AS4764] 203.27.101.1 262.296 ms

Measurement taken from

IPinfo ProbeNet in Coventry, GB

On October 30th 2025

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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