203.20.138.0/24

AS23764 · CTGNet

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Summary

Country	Hong Kong
Domain	chinatelecom.com.hk
ASN	AS23764
Registry	APNIC
ID	CTHKI-HK

WHOIS Details

inetnum:        203.20.136.0 - 203.20.139.255
netname:        CTHKI-HK
descr:          Chinatelecom Next Carrying Network backbone
descr:          38/F., DAH SING Financial Center, 108 Gloucester Road, Wan Chai, Hong Kong
country:        HK
admin-c:        CA67-AP
tech-c:         CA67-AP
abuse-c:        AC1573-AP
status:         ALLOCATED NON-PORTABLE
remarks:        service provider
notify:         noc@chinatelecom.com.hk
mnt-by:         MAINT-CHINANET
mnt-irt:        IRT-CHINANET-CN
last-modified:  2021-06-15T08:05:25Z
source:         APNIC

irt:            IRT-CHINANET-CN
address:        No.31 ,jingrong street,beijing
address:        100032
e-mail:         anti-spam@chinatelecom.cn
abuse-mailbox:  anti-spam@chinatelecom.cn
admin-c:        CH93-AP
tech-c:         CH93-AP
auth:           # Filtered
remarks:        anti-spam@chinatelecom.cn was validated on 2025-04-24
mnt-by:         MAINT-CHINANET
last-modified:  2025-04-24T03:21:26Z
source:         APNIC

role:           ABUSE CHINANETCN
country:        ZZ
address:        No.31 ,jingrong street,beijing
address:        100032
phone:          +000000000
e-mail:         anti-spam@chinatelecom.cn
admin-c:        CH93-AP
tech-c:         CH93-AP
nic-hdl:        AC1573-AP
remarks:        Generated from irt object IRT-CHINANET-CN
remarks:        anti-spam@chinatelecom.cn was validated on 2025-04-24
abuse-mailbox:  anti-spam@chinatelecom.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-04-24T03:21:54Z
source:         APNIC

role:           CHINANETFJ IP ADMIN
address:        7,East Street,Fuzhou,Fujian,PRC
country:        CN
phone:          +86-591-83309761
fax-no:         +86-591-83371954
e-mail:         fjnic@fjdcb.fz.fj.cn
remarks:        send spam reports  and abuse reports
remarks:        to abuse@fjdcb.fz.fj.cn
remarks:        Please include detailed information and
remarks:        times in UTC
admin-c:        FH71-AP
tech-c:         FH71-AP
nic-hdl:        CA67-AP
remarks:        www.fjtelecom.com
notify:         fjnic@fjdcb.fz.fj.cn
mnt-by:         MAINT-CHINANET-FJ
last-modified:  2011-12-06T00:10:50Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.20.0.0/16

Range	ASN	Company	Num of IPs
203.20.160.0/19	AS37998	St. Vincents and Mater Health Sydney Pty Ltd	8,192
203.20.176.0/20	AS37998	St. Vincents and Mater Health Sydney Pty Ltd	4,096
203.20.160.0/20	AS37998	St. Vincents and Mater Health Sydney Pty Ltd	4,096
203.20.32.0/21	AS133612	VODAFONE AUSTRALIA PTY LIMITED	2,048
203.20.28.0/22	AS133612	VODAFONE AUSTRALIA PTY LIMITED	1,024
203.20.100.0/23	AS38809	Thales Australia	512
203.20.226.0/23	AS7600	Digital Enterprise Solutions Australia	512
203.20.102.0/23	AS17907	Allen Bolderoff	512
203.20.20.0/23	AS140724	RACT PTY LTD	512
203.20.244.0/23	AS24436	Christian Outreach College	512
203.20.54.0/23	AS38012	Downer EDI Limited	512
203.20.228.0/23	AS4739	iiNet Limited	512
203.20.22.0/23	AS140724	RACT PTY LTD	512
203.20.78.0/24	AS4826	G and T Service Company Pty Ltd	256
203.20.43.0/24	AS1221	Dalrymple Bay Coal Terminal	256
203.20.196.0/24	AS139910	Origin Energy Limited	256
203.20.238.0/24	AS1221	Tyco Fire And Security	256
203.20.21.0/24	AS140724	RACT PTY LTD	256
203.20.249.0/24	AS9328	Department of Water (WA)	256
203.20.239.0/24	AS1221	Tyco Fire And Security	256
203.20.110.0/24	AS9266	Fiveways International Limited	256
203.20.38.0/24	AS133612	VODAFONE AUSTRALIA PTY LIMITED	256
203.20.197.0/24	AS1221	Origin Energy Limited	256
203.20.50.0/24	AS136518	Department of Fisheries,	256
203.20.69.0/24	AS38583	DNA Pty Ltd	256
203.20.242.0/24	AS16509	Clair Global	256
203.20.81.0/24	AS17477	67 High St	256
203.20.20.0/24	AS140724	RACT PTY LTD	256
203.20.114.0/24	AS2764	Sensation Internet Services	256
203.20.29.0/24	AS133612	VODAFONE AUSTRALIA PTY LIMITED	256
203.20.16.0/24	AS9461	Netcore Pty Ltd	256
203.20.195.0/24	AS139910	Origin Energy Limited	256
203.20.139.0/24	AS23764	Chinatelecom Next Carrying Network backbone	256
203.20.125.0/24	AS38195	Intuit Technologies Pty Ltd	256
203.20.79.0/24	AS4826	G and T Service Company Pty Ltd	256
203.20.23.0/24	AS140724	RACT PTY LTD	256
203.20.218.0/24	AS4778	BORAL LTD	256
203.20.251.0/24	AS9328	Department of Water (WA)	256
203.20.68.0/24	AS45577	DNA Pty Ltd	256
203.20.229.0/24	AS4739	iiNet Limited	256
203.20.247.0/24	AS7600	Digital Enterprise Solutions Australia	256
203.20.60.0/24	AS4846	Ai Tel Pty Ltd	256
203.20.219.0/24	AS4778	BORAL LTD	256
203.20.192.0/24	AS139910	Origin Energy Limited	256
203.20.194.0/24	AS139910	Origin Energy Limited	256
203.20.18.0/24	AS136013	National Gallery of Australia	256
203.20.137.0/24	AS23764	Chinatelecom Next Carrying Network backbone	256
203.20.28.0/24	AS133612	VODAFONE AUSTRALIA PTY LIMITED	256
203.20.241.0/24	AS138466	TCR Holdings Limted.	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
203.20.138.1	AS23764 CTGNet	12.10ms from Singapore, SG

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
109.104.229.8	AS48500 Irpinia Net-Com SRL	14.64ms from Milan, IT
131.206.20.88	AS2907 Research Organization of Information and Systems, National Institute of Informatics	11.86ms from Osaka, JP
124.189.155.152	AS1221 Telstra Limited	8.98ms from Perth, AU
59.13.129.184	AS4766 Korea Telecom	2.00ms from Seoul, KR
101.17.109.88	AS4837 CHINA UNICOM China169 Backbone	11.51ms from Beijing, CN
195.56.171.8	AS5588 T-Mobile Czech Republic a.s.	0.47ms from Budapest, HU
191.179.84.216	AS28573 Claro NXT Telecomunicacoes Ltda	14.71ms from Muriae, BR
175.250.133.72	AS4766 Korea Telecom	6.03ms from Seoul, KR
60.163.99.248	AS4134 CHINANET-BACKBONE	6.61ms from Hangzhou, CN
36.48.255.136	AS4134 CHINANET-BACKBONE	16.00ms from Liaoyang, CN
79.32.92.152	AS3269 Telecom Italia S.p.A.	15.04ms from Milan, IT
119.210.76.200	AS4766 Korea Telecom	5.22ms from Seoul, KR
203.117.149.216	AS4657 StarHub Ltd	1.04ms from Singapore, SG
203.116.210.136	AS4657 StarHub Ltd	0.40ms from Singapore, SG
88.129.6.232	AS29518 Bredband2 AB	8.35ms from Stockholm, SE
104.179.115.72	AS7018 AT&T Enterprises, LLC	3.29ms from Chicago, US
115.230.186.184	AS4134 CHINANET-BACKBONE	6.27ms from Hangzhou, CN
88.114.57.216	AS719 Elisa Oyj	0.79ms from Helsinki, FI
73.217.206.104	AS7922 Comcast Cable Communications, LLC	12.66ms from Chicago, US
104.5.128.8	AS7018 AT&T Enterprises, LLC	16.61ms from Dallas, US
125.137.80.8	AS4766 Korea Telecom	4.38ms from Seoul, KR
203.105.214.8	AS132789 Pivotel Group Pty Limited	1.10ms from Sydney, AU
20.49.59.232	AS8075 Microsoft Corporation	0.41ms from Boydton, US
75.196.174.120	AS6167 Verizon Business	15.75ms from Chicago, US
90.170.235.200	AS12479 Orange Espagne SA	9.53ms from Madrid, ES

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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