1. All IP Ranges
  2. 203.0.0.0/8
  3. 203.81.0.0/16
  4. AS23764  | 203.81.0.0/24

203.81.0.0/24

AS23764  ·  CTGNet

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Summary

Country United Arab Emirates
Domain chinatelecom.cn
ASN AS23764
Registry APNIC
ID CTHKI-HK

WHOIS Details

inetnum:        203.81.0.0 - 203.81.0.255
netname:        CTHKI-HK
descr:          Chinatelecom Next Carrying Network backbone
country:        AE
admin-c:        CA67-AP
tech-c:         CA67-AP
abuse-c:        AC1573-AP
status:         ASSIGNED NON-PORTABLE
mnt-by:         MAINT-CHINANET-CN
mnt-irt:        IRT-CHINANET-CN
last-modified:  2022-09-15T07:13:21Z
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 203.81.0.0/16

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
203.81.3.0/24 AS23764 Chinatelecom Global network 256
203.81.4.0/24 AS23764 Chinatelecom Next Carrying Network backbone 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 is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
203.81.0.1 itlphk.com 1

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
Read more

Pingable IPs

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

IP Address ASN Details
203.81.0.1 AS23764 CTGNet 0.28ms from Dubai, AE

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
124.184.77.168 AS1221 Telstra Limited 3.26ms from Adelaide, AU
54.156.234.104 AS14618 Amazon.com, Inc. 0.53ms from Ashburn, US
129.16.15.8 AS2841 Chalmers University of Technology 0.82ms from Goeteborg, SE
47.243.73.200 AS45102 Alibaba (US) Technology Co., Ltd. 0.77ms from Hong Kong, HK
81.88.45.104 AS45012 dogado GmbH 0.40ms from Leipzig, DE
82.28.142.216 AS5089 Virgin Media Limited 14.22ms from London, GB
76.86.229.152 AS20001 Charter Communications Inc 4.58ms from Los Angeles, US
98.96.213.136 AS21859 Zenlayer Inc 0.22ms from Miami, US
47.199.48.184 AS5650 Frontier Communications of America, Inc. 6.57ms from Miami, US
184.153.228.168 AS11351 Charter Communications Inc 16.16ms from New York City, US
65.74.174.40 AS17018 Quality Technology Services, LLC 3.77ms from San Jose, US
118.189.177.184 AS4773 MobileOne Ltd. Mobile/Internet Service Provider Singapore 2.13ms from Singapore, SG
201.61.254.152 AS27699 TELEFÔNICA BRASIL S.A 1.09ms from São Paulo, BR
210.68.44.216 AS4780 Digital United Inc. 5.58ms from Taipei, TW
46.49.78.120 AS16010 Magticom Ltd. 0.65ms from Tbilisi, GE
149.74.32.248 AS12479 Orange Espagne SA 6.98ms from Zaragoza, ES
221.15.177.200 AS4837 CHINA UNICOM China169 Backbone 1.53ms from Zhengzhou, CN
3.218.57.200 AS14618 Amazon.com, Inc. 0.55ms from Ashburn, US
1.92.65.120 AS55990 Huawei Cloud Service data center 3.67ms from Beijing, CN
52.32.120.184 AS16509 Amazon.com, Inc. 0.13ms from Boardman, US
18.223.73.184 AS16509 Amazon.com, Inc. 0.15ms from Columbus, US
89.168.82.24 AS31898 Oracle Corporation 0.41ms from Frankfurt am Main, DE
41.0.68.24 AS36994 Vodacom 1.31ms from Johannesburg, ZA
4.221.160.8 AS8075 Microsoft Corporation 0.20ms from Johannesburg, ZA
90.203.234.136 AS5607 Sky UK Limited 11.37ms from London, GB

Traceroute

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

$
traceroute -a -n -q1 -f4 203.81.0.1
traceroute to 203.81.0.1 (203.81.0.1): 64 hops max, 52 byte packets
4 [] 185.1.8.125 0.813 ms
5 [AS23764] 203.81.0.1 6.541 ms
Measurement taken from IPinfo ProbeNet in Dubai, AE
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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