203.81.4.0/24

AS23764 · CTGNet

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Summary

Country	Singapore
Domain	chinatelecom.cn
ASN	AS23764
Registry	APNIC
ID	CTHKI-HK

WHOIS Details

inetnum:        203.81.4.0 - 203.81.4.255
netname:        CTHKI-HK
descr:          Chinatelecom Next Carrying Network backbone
country:        SG
admin-c:        CA67-AP
tech-c:         CA67-AP
abuse-c:        AC1573-AP
status:         ALLOCATED NON-PORTABLE
remarks:        service provider
mnt-by:         MAINT-CHINANET
mnt-irt:        IRT-CHINANET-CN
last-modified:  2023-08-18T19:23:36Z
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 2025-11-13
mnt-by:         MAINT-CHINANET
last-modified:  2025-11-18T00:26:23Z
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 2025-11-13
abuse-mailbox:  anti-spam@chinatelecom.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-11-13T14:15:15Z
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 203.81.0.0/16

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
203.81.6.0/24	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
203.81.37.0/24	AS4637	Telstra Global Internet Services Network Blocks	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 are no domains currently hosted on this ASN.

Hosted domains API

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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
203.81.4.12	AS23764 CTGNet	`0.97ms` 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
13.246.229.24	AS16509 Amazon.com, Inc.	`0.71ms` from Cape Town, ZA
65.185.82.120	AS10796 Charter Communications Inc	`7.62ms` from Cleveland, US
87.154.15.136	AS3320 Deutsche Telekom AG	`4.94ms` from Duesseldorf, DE
223.7.220.72	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`7.79ms` from Hangzhou, CN
38.238.9.232	AS134548 DXTL Tseung Kwan O Service	`0.69ms` from Hong Kong, HK
98.225.84.40	AS7922 Comcast Cable Communications, LLC	`16.86ms` from Los Angeles, US
86.211.217.88	AS3215 Orange S.A.	`2.17ms` from Marseille, FR
75.73.230.104	AS7922 Comcast Cable Communications, LLC	`6.99ms` from Minneapolis, US
193.248.190.56	AS3215 Orange S.A.	`1.62ms` from Paris, FR
52.242.36.152	AS8075 Microsoft Corporation	`0.17ms` from Quebec, CA
23.22.64.168	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US
151.74.214.248	AS1267 WIND TRE S.P.A.	`14.40ms` from Rome, IT
93.66.147.216	AS30722 Vodafone Italia S.p.A.	`9.81ms` from Rome, IT
175.251.163.248	AS4766 Korea Telecom	`8.66ms` from Seoul, KR
203.220.84.40	AS7545 TPG Telecom Limited	`0.93ms` from Sydney, AU
118.67.85.152	AS15830 Equinix (EMEA) Acquisition Enterprises B.V.	`1.19ms` from Tokyo, JP
54.95.112.56	AS16509 Amazon.com, Inc.	`0.19ms` from Tokyo, JP
126.42.244.120	AS17676 SoftBank Corp.	`7.43ms` from Tokyo, JP
153.212.64.248	AS4713 NTT DOCOMO BUSINESS,Inc.	`15.91ms` from Tokyo, JP
153.180.171.8	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.51ms` from Tokyo, JP
123.136.54.24	AS7600 Escape.net	`0.13ms` from Adelaide, AU
105.99.150.168	AS36947 Telecom Algeria	`9.96ms` from Algiers, DZ
86.121.15.40	AS8708 DIGI ROMANIA S.A.	`0.87ms` from Bucharest, RO
3.130.246.8	AS16509 Amazon.com, Inc.	`0.13ms` from Columbus, US
172.236.221.88	AS63949 Akamai Connected Cloud	`0.43ms` from Frankfurt am Main, DE

Traceroute

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

traceroute -a -n -q1 -f2 203.81.4.12

traceroute to 203.81.4.12 (203.81.4.12): 64 hops max, 52 byte packets

2 [AS3356] 4.69.219.45 38.126 ms

3 [AS3356] 4.71.141.82 143.775 ms

4 *

5 *

6 [AS23764] 203.81.4.12 217.551 ms

Measurement taken from

IPinfo ProbeNet in Casper, US

On January 18th 2026

What are IP address ranges?

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