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:         noc@chinatelecom.com.hk
notify:         marcok@chinatelecomglobal.com
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:         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 203.12.0.0/16

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

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

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

IP Address ASN Details
203.12.204.233 AS23764 CTGNet 0.90ms 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
47.253.170.248 AS45102 Alibaba (US) Technology Co., Ltd. 0.29ms from Ashburn, US
77.49.64.248 AS1241 Forthnet 4.27ms from Athens, GR
20.221.178.184 AS8075 Microsoft Corporation 0.32ms from Boydton, US
49.69.226.104 AS4134 CHINANET-BACKBONE 7.81ms from Huai'an, CN
94.3.72.184 AS5607 Sky UK Limited 4.68ms from London, GB
157.88.208.200 AS44593 Fundacion Centro de Supercomputacion de Castilla y Leon 3.16ms from Madrid, ES
90.116.7.120 AS3215 Orange S.A. 9.31ms from Marseille, FR
147.162.62.72 AS137 Consortium GARR 3.94ms from Milan, IT
148.64.4.232 AS396982 Google LLC 0.08ms from Mumbai, IN
20.83.77.8 AS8075 Microsoft Corporation 0.32ms from Quincy, US
2.19.132.120 AS16625 Akamai Technologies, Inc. 0.28ms from Seattle, US
41.98.254.120 AS36947 Telecom Algeria 9.70ms from Valencia, ES
154.250.149.120 AS36947 Telecom Algeria 13.49ms from Algiers, DZ
130.37.236.200 AS1103 SURF B.V. 0.95ms from Amsterdam, NL
71.56.82.184 AS7922 Comcast Cable Communications, LLC 4.91ms from Atlanta, US
123.56.140.104 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 1.93ms from Beijing, CN
54.68.224.72 AS16509 Amazon.com, Inc. 0.16ms from Boardman, US
186.57.100.200 AS22927 Telefonica de Argentina 2.12ms from Buenos Aires, AR
45.173.238.152 AS268840 CAVALCANTE & HERCULANO LTDA 12.61ms from Fortaleza, BR
86.167.72.8 AS2856 British Telecommunications PLC 5.81ms from London, GB
189.222.41.216 AS8151 UNINET 3.86ms from Los Angeles, US
68.114.241.40 AS20115 Charter Communications LLC 15.18ms from Minneapolis, US
219.50.181.88 AS17676 SoftBank Corp. 4.33ms from Osaka, JP
172.225.104.152 AS36183 Akamai Technologies, Inc. 0.13ms from Prague, CZ
112.242.139.40 AS4837 CHINA UNICOM China169 Backbone 7.71ms from Qingdao, CN

Traceroute

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

$
traceroute -a -n -q1 -f3 203.12.204.225
traceroute to 203.12.204.225 (203.12.204.225): 64 hops max, 52 byte packets
3 [] 201.16.2.155 100.415 ms
4 *
5 *
6 *
7 *
8 [AS23764] 203.12.204.225 432.945 ms
Measurement taken from IPinfo ProbeNet in Joao Pessoa, BR
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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