203.81.37.0/24

AS4637  ·  Telstra Global

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Summary

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

WHOIS Details

inetnum:        203.81.37.0 - 203.81.37.255
netname:        TELSTRAGLOBAL
descr:          Telstra Global Internet Services Network Blocks
country:        SG
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:        --------------------------------------------------------
remarks:        Service Provider Block
mnt-by:         APNIC-HM
mnt-routes:     MAINT-HK-TI
mnt-lower:      MAINT-HK-TI
mnt-irt:        IRT-TELSTRA-INTL-HK
last-modified:  2025-05-30T04:28:19Z
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:         IRT@team.telstra.com
abuse-mailbox:  abuse@telstra.net
admin-c:        TI55-AP
tech-c:         TI54-AP
auth:           # Filtered
remarks:        irt@team.telstra.com was validated on 2025-07-15
remarks:        abuse@telstra.net 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:         ipNOC@team.telstra.com
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:         IRT@team.telstra.com
admin-c:        TI55-AP
tech-c:         TI54-AP
nic-hdl:        AT940-AP
remarks:        Generated from irt object IRT-TELSTRA-INTL-HK
remarks:        irt@team.telstra.com was validated on 2025-07-15
remarks:        abuse@telstra.net was validated on 2025-07-15
abuse-mailbox:  abuse@telstra.net
mnt-by:         APNIC-ABUSE
last-modified:  2025-07-15T22:42:45Z
source:         APNIC

person:         Telstra-International IPNOC
nic-hdl:        TI54-AP
e-mail:         ipnoc@team.telstra.com
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: ipnoc@team.telstra.com
remarks:        For Network Related Issue: ipnoc@team.telstra.com
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:         ipnpd@team.telstra.com
nic-hdl:        TI55-AP
abuse-mailbox:  abuse@intl.telstra.com
mnt-by:         MAINT-HK-TI
last-modified:  2019-04-15T01:08:26Z
source:         APNIC

route:          203.81.37.0/24
origin:         AS4637
descr:          Telstra International Limited 19/F Telecom House 3 Gloucester Road
mnt-by:         MAINT-HK-TI
last-modified:  2023-08-11T06:15:31Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.81.0.0/16

Range ASN Company Num of IPs
203.81.128.0/19 AS17608 ABN 8,192
203.81.64.0/19 AS9988 Myanma Post and Telecommunication 8,192
203.81.112.0/20 AS24289 Kagawa Broad Network corp. 4,096
203.81.208.0/20 AS206805 LLC T1Cloud 4,096
203.81.192.0/20 AS22773 4,096
203.81.12.0/22 AS23616 Hitachi Systems, Ltd. 1,024
203.81.240.0/22 AS17747 Siti Networks Ltd 1,024
203.81.252.0/22 AS4656 Tiglion Consultancy Company Limited 1,024
203.81.162.0/24 AS18399 Yatanarpon Teleport, Colocation 256
203.81.163.0/24 AS18399 Yatanarpon Teleport, ISP Service 256
203.81.164.0/24 AS18399 Yatanarpon Teleport, Public Subnets 256
203.81.165.0/24 AS18399 Yatanarpon Teleport 256
203.81.168.0/24 AS18399 Yatanarpon Teleport, Colocation 256
203.81.167.0/24 AS131322 Yatanarpon Teleport, Internet Service Provider 256
203.81.0.0/24 AS23764 Chinatelecom Next Carrying Network backbone 256
203.81.3.0/24 AS23764 Chinatelecom Global network 256
203.81.4.0/24 AS23764 Chinatelecom Next Carrying Network backbone 256
203.81.6.0/24 AS23764 Chinatelecom Next Carrying Network backbone 256
203.81.34.0/24 AS4628 Pacific Internet Pte Ltd 256
203.81.36.0/24 AS4628 Pacific Internet Pte Ltd 256
203.81.102.0/24 AS9329 Sri Lanka Telecom Ltd 256
203.81.99.0/24 AS9329 Sri Lanka Telecom Ltd 256
203.81.169.0/24 AS18399 Yatanarpon Teleport 256
203.81.170.0/24 AS131322 Yatanarpon Teleport, Infrastructure 256
203.81.240.0/24 AS17747 SITI NETWORKS LIMITED 256
203.81.241.0/24 AS17747 SITI NETWORKS LIMITED 256
203.81.242.0/24 AS17747 SITI NETWORKS LIMITED 256
203.81.243.0/24 AS17747 SITI NETWORKS LIMITED 256
203.81.160.0/24 AS18399 Yatanarpon Teleport, ISP Service 256
203.81.161.0/24 AS18399 Yatanarpon Teleport, Infrastructure 256

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
203.81.37.136 kaisin.com.sg 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

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
20.7.37.216 AS8075 Microsoft Corporation 0.21ms from Boydton, US
89.135.168.168 AS21334 One Hungary Ltd. 9.57ms from Budapest, HU
138.113.239.200 AS54994 Meteverse Limited. 1.61ms from Delhi, IN
178.15.59.168 AS3209 Vodafone GmbH 2.15ms from Duesseldorf, DE
115.74.51.200 AS7552 Viettel Group 3.05ms from Ho Chi Minh City, VN
114.96.112.8 AS140527 China Telecom 5.32ms from Huai'an, CN
211.91.64.24 AS4837 CHINA UNICOM China169 Backbone 6.12ms from Nanjing, CN
217.128.149.136 AS3215 Orange S.A. 1.94ms from Paris, FR
66.141.62.56 AS7018 AT&T Enterprises, LLC 4.09ms from San Antonio, US
212.116.159.88 AS9070 Cooolbox AD 2.70ms from Sofia, BG
177.174.86.248 AS26599 TELEFÔNICA BRASIL S.A 7.75ms from São Paulo, BR
102.154.16.88 AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom) 18.05ms from Tunis, TN
119.100.40.216 AS4134 CHINANET-BACKBONE 3.52ms from Wuhan, CN
166.78.207.104 AS19994 Rackspace Hosting 1.29ms from Chicago, US
68.32.19.56 AS7922 Comcast Cable Communications, LLC 7.61ms from Flint, US
73.98.52.152 AS7922 Comcast Cable Communications, LLC 12.31ms from Greenwood Village, US
109.155.109.232 AS2856 British Telecommunications PLC 4.72ms from London, GB
97.217.83.248 AS6167 Verizon Business 9.90ms from Los Angeles, US
189.179.187.120 AS8151 UNINET 6.17ms from Monterrey, MX
68.132.83.72 AS701 Verizon Business 2.66ms from New York City, US
211.135.89.40 AS9617 JCOM Co., Ltd. 12.40ms from Osaka, JP
3.84.180.8 AS14618 Amazon.com, Inc. 0.44ms from Reston, US
211.167.100.72 AS9812 Oriental Cable Network Co., Ltd. 1.74ms from Shanghai, CN
143.179.195.8 AS50266 Odido Netherlands B.V. 4.73ms from Amsterdam, NL
20.229.80.216 AS8075 Microsoft Corporation 0.22ms 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 -m6 203.81.37.162
traceroute to 203.81.37.162 (203.81.37.162): 6 hops max, 52 byte packets
1 [AS15169] 74.125.251.87 31.639 ms
2 *
3 [AS4637] 202.47.216.101 34.014 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Seoul, KR
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.

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