1. All IP Ranges
  2. 203.0.0.0/8
  3. 203.12.0.0/16
  4. AS23764  | 203.12.204.0/24

203.12.204.0/24

AS23764  ·  CTGNet

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Summary

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

WHOIS Details

inetnum:        203.12.200.0 - 203.12.207.255
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 PORTABLE
remarks:        service provider
notify:         [email protected]
notify:         [email protected]
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CHINANET-FJ
mnt-irt:        IRT-CHINANET-CN
last-modified:  2021-06-15T08:05:40Z
source:         APNIC

irt:            IRT-CHINANET-CN
address:        No.31 ,jingrong street,beijing
address:        100032
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CH93-AP
tech-c:         CH93-AP
auth:           # Filtered
remarks:        [email protected] 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:         [email protected]
admin-c:        CH93-AP
tech-c:         CH93-AP
nic-hdl:        AC1573-AP
remarks:        Generated from irt object IRT-CHINANET-CN
remarks:        [email protected] was validated on 2025-11-13
abuse-mailbox:  [email protected]
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:         [email protected]
remarks:        send spam reports  and abuse reports
remarks:        to [email protected]
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:         [email protected]
mnt-by:         MAINT-CHINANET-FJ
last-modified:  2011-12-06T00:10:50Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.12.0.0/16

Range ASN Company Num of IPs
203.12.176.0/20 AS703 Verizon Australia Pty Limited 4,096
203.12.104.0/21 AS58713 Melbourne PC User Group Inc 2,048
203.12.144.0/21 AS1221 Telstra Limited 2,048
203.12.152.0/21 AS58713 Melbourne PC User Group Inc 2,048
203.12.160.0/21 AS7545 TPG Internet Pty Ltd. 2,048
203.12.236.0/22 AS151499 Australian Public Access Network Association 1,024
203.12.80.0/23 AS133612 VODAFONE AUSTRALIA PTY LIMITED 512
203.12.252.0/23 AS154106 VNG ONLINE COMPANY LIMITED 512
203.12.52.0/23 AS4739 iiNet Limited 512
203.12.40.0/23 AS6262 CSIRO Division of Mathematics and Statistics 512
203.12.254.0/23 AS154107 DigitalLink Global Network Limited 512
203.12.15.0/24 AS134697 Launtel 256
203.12.2.0/24 AS134697 Launtel 256
203.12.3.0/24 AS134697 Launtel 256
203.12.4.0/24 AS134697 Launtel 256
203.12.5.0/24 AS134697 Launtel 256
203.12.6.0/24 AS134697 Launtel 256
203.12.7.0/24 AS134697 Launtel 256
203.12.8.0/24 AS134697 Launtel 256
203.12.9.0/24 AS134697 Launtel 256
203.12.86.0/24 AS136408 LORETO MANDEVILLE HALL TOORAK LIMITED 256
203.12.229.0/24 AS137442 Cairns Airport Pty Ltd 256
203.12.230.0/24 AS137442 Cairns Airport Pty Ltd 256
203.12.18.0/24 AS138185 LUKBAN TELEPHONE SYSTEM, INC. 256
203.12.29.0/24 AS148968 Falcore Investments Pty Ltd 256
203.12.249.0/24 AS153035 CiFi Pty Ltd 256
203.12.218.0/24 AS16509 Intruder Systems Ltd 256
203.12.248.0/24 AS17463 EtherTech Pty Ltd 256
203.12.28.0/24 AS17763 Terrinell Pty. Ltd. 256
203.12.234.0/24 AS17766 Nexon Asia Pacific Pty Ltd 256
203.12.131.0/24 AS19625 Andrew John Howard 256
203.12.31.0/24 AS210083 Oma Gosh AB 256
203.12.115.0/24 AS2764 Whitehorse Manningham Regional Library Corporation 256
203.12.36.0/24 AS2764 St. Kevin's College Ltd 256
203.12.220.0/24 AS38044 GITN-NETWORK 256
203.12.235.0/24 AS38830 Levart Distribution Systems Pty Ltd 256
203.12.45.0/24 AS45657 NSW Rural Fire Service 256
203.12.221.0/24 AS45912 Indue 256
203.12.172.0/24 AS4768 Canon Australia Pty. Ltd. 256
203.12.173.0/24 AS4768 Canon Australia Pty. Ltd. 256
203.12.91.0/24 AS4809 CTHKI-CN-FuJian network 256
203.12.251.0/24 AS4826 VOCUS PTY LTD 256
203.12.97.0/24 AS4826 Telstra Limited 256
203.12.174.0/24 AS55914 Canon Australia Pty. Ltd. 256
203.12.175.0/24 AS55914 Canon Australia Pty. Ltd. 256
203.12.88.0/24 AS63527 Chinatelecom Global Network 256
203.12.89.0/24 AS63527 Chinatelecom Global Network 256
203.12.129.0/24 AS63956 5G NETWORK OPERATIONS PTY LTD 256
203.12.228.0/24 AS7545 Far North Queensland Ports Corporation Limited 256
203.12.170.0/24 AS7575 John Paul College 256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Pingable IPs

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

IP Address ASN Details
203.12.204.85 AS23764 CTGNet 1.56ms from Hong Kong, HK

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
86.90.18.104 AS1136 KPN B.V. 1.12ms from Amsterdam, NL
81.70.5.232 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.94ms from Beijing, CN
209.54.103.72 AS36352 HostPapa 0.10ms from Buffalo, US
87.158.43.40 AS3320 Deutsche Telekom AG 8.31ms from Frankfurt am Main, DE
113.180.162.168 AS45899 VNPT Corp 3.75ms from Ho Chi Minh City, VN
146.196.97.104 AS38320 PT Maxindo Mitra Solusi 0.49ms from Jakarta, ID
42.55.62.104 AS4837 CHINA UNICOM China169 Backbone 10.98ms from Liaoyang, CN
104.25.96.88 AS13335 Cloudflare, Inc. 0.13ms from Lisbon, PT
213.9.221.120 AS8903 LYNTIA NETWORKS S.A. 1.60ms from Madrid, ES
157.189.16.216 AS6453 TATA COMMUNICATIONS (AMERICA) INC 5.93ms from New York City, US
119.106.226.152 AS2516 KDDI CORPORATION 16.92ms from Osaka, JP
191.185.199.168 AS28573 Claro NXT Telecomunicacoes Ltda 12.96ms from Rio de Janeiro, BR
74.163.145.56 AS8075 Microsoft Corporation 0.18ms from Sao Paulo, BR
211.197.118.152 AS4766 Korea Telecom 7.43ms from Seoul, KR
14.89.194.136 AS4766 Korea Telecom 2.91ms from Seoul, KR
115.60.201.72 AS4837 CHINA UNICOM China169 Backbone 1.21ms from Zhengzhou, CN
172.220.173.168 AS20115 Charter Communications LLC 14.75ms from Atlanta, US
52.18.229.24 AS16509 Amazon.com, Inc. 0.18ms from Dublin, IE
70.152.27.24 AS8075 Microsoft Corporation 0.35ms from Gaevle, SE
147.162.62.72 AS137 Consortium GARR 3.88ms from Milan, IT
35.136.31.136 AS33363 Charter Communications, Inc 10.15ms from Orlando, US
203.141.148.216 AS2514 NTT PC Communications, Inc. 2.09ms from Osaka, JP
191.31.209.152 AS18881 TELEFÔNICA BRASIL S.A 6.96ms from Sao Paulo, BR
24.108.87.184 AS6327 Shaw Communications 10.48ms from Seattle, US
112.157.24.40 AS17858 LG POWERCOMM 1.65ms from Seoul, KR

Traceroute

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

$
traceroute -a -n -q1 203.12.204.86
traceroute to 203.12.204.86 (203.12.204.86): 64 hops max, 52 byte packets
2 [] 203.22.178.21 17.119 ms
3 *
4 [] 69.194.166.38 1.261 ms
Measurement taken from IPinfo ProbeNet in Hong Kong, HK
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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