203.123.128.0/18

AS4637  ·  Telstra Global

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Summary

Country India
Domain telstra.com
ASN AS4637
Registry APNIC
ID TELSTRAGLOBAL

WHOIS Details

inetnum:        203.123.128.0 - 203.123.191.255
netname:        TELSTRAGLOBAL
descr:          Telstra International Limited
country:        IN
org:            ORG-TIL3-AP
admin-c:        TI55-AP
tech-c:         TI54-AP
abuse-c:        AT940-AP
status:         ALLOCATED PORTABLE
geofeed:        https://geofeed.telstraglobal.net/geofeed.csv
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-HK-TI
mnt-lower:      MAINT-HK-TI
mnt-irt:        IRT-TELSTRA-INTL-HK
last-modified:  2025-05-30T04:28:46Z
source:         APNIC

irt:            IRT-TELSTRA-INTL-HK
address:        Internet and Private Networks
address:        Telecom House,
address:        3 Gloucester Rd,
address:        Wanchai, Hong Kong.
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        TI55-AP
tech-c:         TI54-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-07-15
remarks:        [email protected] was validated on 2025-07-15
mnt-by:         MAINT-HK-TI
last-modified:  2025-09-04T05:54:39Z
source:         APNIC

organisation:   ORG-TIL3-AP
org-name:       Telstra International Limited
org-type:       LIR
country:        HK
address:        19/F Telecom House
address:        3 Gloucester Road
phone:          +852-2983-4820
fax-no:         +852-2597-5896
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:55Z
source:         APNIC

role:           ABUSE TELSTRAINTLHK
country:        ZZ
address:        Internet and Private Networks
address:        Telecom House,
address:        3 Gloucester Rd,
address:        Wanchai, Hong Kong.
phone:          +000000000
e-mail:         [email protected]
admin-c:        TI55-AP
tech-c:         TI54-AP
nic-hdl:        AT940-AP
remarks:        Generated from irt object IRT-TELSTRA-INTL-HK
remarks:        [email protected] was validated on 2025-07-15
remarks:        [email protected] was validated on 2025-07-15
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-07-15T22:42:45Z
source:         APNIC

person:         Telstra-International IPNOC
nic-hdl:        TI54-AP
e-mail:         [email protected]
address:        Telecom House,
address:        3 Gloucester Rd,
address:        Wanchai, Hong Kong.
phone:          +852 2983 3388
fax-no:         +852 2597 5896
country:        HK
remarks:        For SPAM/ABUSE Issue: [email protected]
remarks:        For Network Related Issue: [email protected]
mnt-by:         MAINT-AP-ANC
last-modified:  2019-09-11T04:30:26Z
source:         APNIC

person:         Telstra-International IPNPD
address:        14/F Telecom House, 3 Gloucester Road, Wanchai
country:        HK
phone:          +852 2983 3388
fax-no:         +852 2597 5896
e-mail:         [email protected]
nic-hdl:        TI55-AP
abuse-mailbox:  [email protected]
mnt-by:         MAINT-HK-TI
last-modified:  2019-04-15T01:08:26Z
source:         APNIC

route:          203.123.128.0/18
origin:         AS4637
descr:          Telstra-International Telecom House, 3 Gloucester Rd, Wanchai, Hong Kong
mnt-by:         MAINT-HK-TI
last-modified:  2020-02-20T05:11:38Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.123.0.0/16

Range ASN Company Num of IPs
203.123.96.0/19 AS38195 SUPERLOOP (AUSTRALIA) PTY LTD 8,192
203.123.0.0/19 AS17547 M1 NET LTD 8,192
203.123.192.0/19 AS17597 SK Broadband Co Ltd 8,192
203.123.80.0/20 AS136907 HUAWEI INTERNATIONAL PTE. LTD. 4,096
203.123.48.0/22 AS37989 Main Network for DCS1 1,024
203.123.225.0/24 AS4855 PT. Samudera Indonesia - Agency Division 256
203.123.54.0/24 AS140982 Broadside, India DC 256
203.123.53.0/24 AS153305 Broadisde India 256
203.123.55.0/24 AS45736 Lighthouse Canton 256
203.123.35.0/24 AS10029 Shyam Spectra Pvt Ltd 256

Hosted domains

There are 14 domain names hosted across 10 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
203.123.140.215 happytoinsure.com 4
203.123.140.70 earnfromfixeddeposits.com 2
203.123.179.170 risk2insure.com 1
203.123.145.72 mahindrafixeddeposit.com 1
203.123.140.148 plinsurance.co.in 1
203.123.140.77 mfdms.com 1
203.123.141.152 upganlawar.in 1
203.123.190.34 srishtihealth.com 1
203.123.174.162 zeomega.org 1
203.123.190.50 trustpharmacy.org 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

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

IP Address ASN Details
203.123.146.117 AS4637 Telstra Global 21.94ms from Hyderabad, IN
203.123.142.17 AS4637 Telstra Global 1.76ms from Mumbai, IN
203.123.145.85 AS4637 Telstra Global 1.42ms from Mumbai, IN
203.123.140.71 AS4637 Telstra Global 2.21ms from Mumbai, IN
203.123.184.5 AS4637 Telstra Global 15.67ms from Mumbai, IN
203.123.133.149 AS4637 Telstra Global 1.73ms from Mumbai, IN

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
104.171.240.2 AS26827 EPB Fiber Optics 3.54ms from Atlanta, US
103.5.225.34 AS132042 Manux Networks Ltd 12.59ms from Auckland, NZ
101.36.158.2 AS23724 IDC, China Telecommunications Corporation 2.37ms from Beijing, CN
203.143.242.114 AS1221 Telstra Limited 0.98ms from Brisbane, AU
187.85.189.226 AS28343 UNIFIQUE TELECOMUNICACOES S/A 6.05ms from Curitiba, BR
216.66.213.2 AS11273 Fiserv Solutions, LLC 13.57ms from Dallas, US
18.184.78.82 AS16509 Amazon.com, Inc. 0.14ms from Frankfurt am Main, DE
79.232.172.114 AS3320 Deutsche Telekom AG 5.67ms from Frankfurt am Main, DE
109.235.238.130 AS51057 nexxtra GmbH 0.78ms from Frankfurt am Main, DE
113.190.5.34 AS45899 VNPT Corp 1.03ms from Hanoi, VN
202.59.94.242 AS17563 Autonomous System Number for Nexlinx 17.21ms from Karachi, PK
86.129.93.34 AS2856 British Telecommunications PLC 3.14ms from London, GB
192.148.210.2 AS200521 Ministerio De Economia, Comercio Y Empresa 1.22ms from Madrid, ES
5.228.79.50 AS42610 PJSC Rostelecom 1.11ms from Moscow, RU
66.24.36.226 AS11351 Charter Communications Inc 14.35ms from New York City, US
72.226.30.194 AS12271 Charter Communications Inc 7.14ms from New York City, US
31.176.158.82 AS9146 BIHNET Autonomus System 3.99ms from Novi Travnik, BA
83.243.17.34 AS4455 IX Reach Ltd 0.45ms from Paris, FR
96.245.193.98 AS701 Verizon Business 0.92ms from Philadelphia, US
63.136.4.34 AS3561 CenturyLink Communications, LLC 1.18ms from Phoenix, US
183.114.27.18 AS4766 Korea Telecom 1.50ms from Seoul, KR
175.208.251.18 AS4766 Korea Telecom 1.13ms from Seoul, KR
212.103.72.130 AS15576 NTS workspace AG 0.74ms from Zuerich, CH
20.61.103.178 AS8075 Microsoft Corporation 0.24ms from Amsterdam, NL
108.200.242.82 AS7018 AT&T Enterprises, LLC 5.01ms from Atlanta, US

Traceroute

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

$
traceroute -a -n -q1 -f2 -m6 203.123.138.186
traceroute to 203.123.138.186 (203.123.138.186): 6 hops max, 52 byte packets
2 [] 80.81.192.246 18.871 ms
3 [AS4637] 202.84.178.70 17.077 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Frankfurt am Main, DE
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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