203.100.51.0/24

AS4809 · China Telecom Next Generation Carrier Network

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Summary

Country	Hong Kong
Domain	chinatelecom.com.hk
ASN	AS4809
Registry	APNIC
ID	CTHKI-HK

WHOIS Details

inetnum:        203.100.48.0 - 203.100.51.255
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:  2021-06-15T08:04:59Z
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 203.100.0.0/16

Range	ASN	Company	Num of IPs
203.100.96.0/19	AS23839	LiaoHe Oilfield Telecommunication Company	8,192
203.100.224.0/19	AS1221	Telstra Limited	8,192
203.100.208.0/20	AS9790	Brander Group Inc	4,096
203.100.192.0/20	AS23724	Beijing Zhonglianlixin Technology Co., Ltd.	4,096
203.100.0.0/20	AS24436	UQConnect	4,096
203.100.16.0/20	AS24436	UQConnect	4,096
203.100.168.0/21	AS17839	LG HelloVision Corp.	2,048
203.100.92.0/22	AS23724	CloudVsp.Inc	1,024
203.100.184.0/22	AS17839	LG HelloVision Corp.	1,024
203.100.164.0/22	AS17839	LG HelloVision Corp.	1,024
203.100.176.0/22	AS17839	LG HelloVision Corp.	1,024
203.100.188.0/23	AS17839	LG HelloVision Corp.	512
203.100.180.0/23	AS17839	LG HelloVision Corp.	512
203.100.190.0/23	AS17839	LG HelloVision Corp.	512
203.100.182.0/23	AS17839	LG HelloVision Corp.	512
203.100.162.0/23	AS17839	LG HelloVision Corp.	512
203.100.160.0/23	AS17839	LG HelloVision Corp.	512
203.100.79.0/24	AS9430	Software Technology Parks Of India , STPI class A ISP	256
203.100.73.0/24	AS24515	Software Technology Parks Of India , STPI class A ISP	256
203.100.135.0/24	AS4637	Telstra Global Internet Services Network Blocks	256
203.100.69.0/24	AS9430	Software Technology Parks Of India , STPI class A ISP	256
203.100.59.0/24	AS38911	Keystart Loans Ltd	256
203.100.74.0/24	AS24515	Software Technology Parks Of India , STPI class A ISP	256
203.100.66.0/24	AS9430	Software Technology Parks Of India , STPI class A ISP	256
203.100.77.0/24	AS24515	Software Technology Parks Of India , STPI class A ISP	256
203.100.67.0/24	AS9430	Software Technology Parks Of India , STPI class A ISP	256
203.100.76.0/24	AS24515	Software Technology Parks Of India , STPI class A ISP	256
203.100.68.0/24	AS9430	Software Technology Parks Of India , STPI class A ISP	256
203.100.78.0/24	AS9430	Software Technology Parks Of India , STPI class A ISP	256
203.100.75.0/24	AS38536	Software Technology Parks Of India , STPI class A ISP	256
203.100.50.0/24	AS4809	Chinatelecom Next Carrying Network backbone	256
203.100.173.0/24	AS17839	LG HelloVision Corp.	256
203.100.52.0/24	AS4809	Chinatelecom Next Carrying Network backbone	256
203.100.54.0/24	AS4809	Chinatelecom Next Carrying Network backbone	256
203.100.61.0/24	AS45118	Australian Nursing Federation Industrial	256
203.100.56.0/24	AS38905	ELLERSTON CAPITAL LIMITED	256
203.100.70.0/24	AS9430	Software Technology Parks Of India , STPI class A ISP	256

Hosted domains

There are no domains currently hosted on this ASN.

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

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
103.227.84.104	AS60781 LeaseWeb Netherlands B.V.	0.30ms from Amsterdam, NL
46.36.157.104	AS39824 JSC Alma Telecommunications	1.55ms from Astana, KZ
41.42.129.136	AS8452 TE-AS	2.71ms from Cairo, EG
101.206.87.24	AS4837 CHINA UNICOM China169 Backbone	11.73ms from Chengdu, CN
97.130.163.168	AS6167 Verizon Business	12.64ms from Chicago, US
92.196.127.88	AS20676 Plusnet GmbH	5.43ms from Duesseldorf, DE
2.205.125.216	AS3209 Vodafone GmbH	6.34ms from Frankfurt am Main, DE
89.77.207.40	AS9141 P4 Sp. z o.o.	7.66ms from Gdynia, PL
106.53.168.216	AS45090 Shenzhen Tencent Computer Systems Company Limited	2.36ms from Guangzhou, CN
113.175.145.200	AS45899 VNPT Corp	2.77ms from Hanoi, VN
119.162.23.104	AS4837 CHINA UNICOM China169 Backbone	2.37ms from Jinan, CN
75.128.45.200	AS20115 Charter Communications LLC	4.05ms from Los Angeles, US
80.117.64.152	AS3269 Telecom Italia S.p.A.	4.53ms from Milan, IT
160.237.175.136	AS131925 FAMILY NET JAPAN INCORPORATED	2.23ms from Osaka, JP
90.109.72.232	AS3215 Orange S.A.	12.98ms from Paris, FR
104.211.245.248	AS8075 Microsoft Corporation	0.28ms from Saint Thomas Mount, IN
187.194.227.40	AS8151 UNINET	6.49ms from Santiago de Queretaro, MX
83.173.175.72	AS6739 VODAFONE ONO, S.A.	14.01ms from Zaragoza, ES
76.97.102.8	AS7922 Comcast Cable Communications, LLC	4.92ms from Atlanta, US
101.242.246.24	AS17429 BEIJING GEHUA CATV NETWORK CO.LTD	9.80ms from Beijing, CN
128.0.147.248	AS59675 mywire Datentechnik GmbH	1.19ms from Berlin, DE
75.247.167.184	AS6167 Verizon Business	18.33ms from Chicago, US
104.154.72.88	AS396982 Google LLC	0.12ms from Council Bluffs, US
72.181.156.24	AS11427 Charter Communications Inc	6.74ms from Dallas, US
83.169.27.104	AS34011 Host Europe GmbH	2.94ms from Frankfurt am Main, DE

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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