113.21.238.0/24

AS4812 · China Telecom (Group)

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	China
Domain	cbccom.net
ASN	AS4812
Registry	APNIC
ID	CBCNET

WHOIS Details

inetnum:        113.21.236.0 - 113.21.239.255
netname:        CBCnet
descr:          Beijing Tian Wei Xin Tong technology corp. limited
descr:          Unit 901,cernet tower,Bolg 8,Tsinghua Science Prak
descr:          No.1Zhongguancun East Rd,Haidian District,Beijing
country:        CN
admin-c:        YL2243-AP
tech-c:         YL2243-AP
abuse-c:        AC1601-AP
status:         ALLOCATED PORTABLE
mnt-by:         MAINT-CNNIC-AP
mnt-irt:        IRT-CBCNET-CN
mnt-lower:      MAINT-CNNIC-AP
last-modified:  2023-11-28T00:56:53Z
source:         APNIC

irt:            IRT-CBCnet-CN
address:        Unit 901,cernet tower,Bolg 8,Tsinghua Science Prak,No.1Zhongguancun East Rd,
address:        Haidian District,Beijing
e-mail:         Kevin.liu@cbccom.net
abuse-mailbox:  Kevin.liu@cbccom.net
admin-c:        YL2243-AP
tech-c:         YL2243-AP
auth:           # Filtered
mnt-by:         MAINT-CNNIC-AP
last-modified:  2025-12-08T05:39:07Z
source:         APNIC

role:           ABUSE CNNICCN
country:        ZZ
address:        Beijing, China
phone:          +000000000
e-mail:         ipas@cnnic.cn
admin-c:        IP50-AP
tech-c:         IP50-AP
nic-hdl:        AC1601-AP
remarks:        Generated from irt object IRT-CNNIC-CN
remarks:        ipas@cnnic.cn is invalid
abuse-mailbox:  ipas@cnnic.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-19T17:20:32Z
source:         APNIC

person:         Yu Liu
nic-hdl:        YL2243-AP
e-mail:         Kevin.liu@cbccom.net
address:        Unit 901,cernet tower,Bolg 8,Tsinghua Science Prak,No.1Zhongguancun East Rd,Haidian District,Beijing
phone:          +86-010-62602988
fax-no:         +86-010-62602987
country:        CN
mnt-by:         MAINT-NEW
last-modified:  2009-05-11T06:39:29Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 113.21.0.0/16

Range	ASN	Company	Num of IPs
113.21.128.0/19	AS703	Verizon Asia Pte Limited	8,192
113.21.32.0/20	AS38835	Buroserv Australia Pty Ltd	4,096
113.21.48.0/20	AS17534	KANAZAWA CABLE TELEVISION NET CO.,LTD.	4,096
113.21.248.0/21	AS23627	UEDA CABLE VISION CO.,LTD.	2,048
113.21.224.0/22	AS56030	Voyager Internet Ltd.	1,024
113.21.228.0/22	AS45766	Triangle Services Ltd.	1,024
113.21.184.0/24	AS9584	DYXNET NET	256
113.21.243.0/24	AS38082	Reserve for KDDI	256
113.21.230.0/24	AS45766	Triangle-Client	256
113.21.231.0/24	AS45766	Triangle-Client	256
113.21.173.0/24	AS9244	DYXNET NET	256
113.21.175.0/24	AS9244	DYXNET NET	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

Read more

Pingable IPs

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

IP Address	ASN	Details
113.21.238.121	AS4812 China Telecom (Group)	`2.95ms` from Shanghai, CN

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
108.235.204.104	AS7018 AT&T Enterprises, LLC	`7.53ms` from Atlanta, US
98.19.235.104	AS7029 Windstream Communications LLC	`11.36ms` from Chicago, US
79.205.186.56	AS3320 Deutsche Telekom AG	`2.60ms` from Duesseldorf, DE
141.95.114.56	AS16276 OVH SAS	`0.13ms` from Frankfurt am Main, DE
14.173.210.104	AS45899 VNPT Corp	`4.01ms` from Ho Chi Minh City, VN
123.202.221.200	AS9269 Hong Kong Broadband Network Ltd.	`0.47ms` from Hong Kong, HK
178.166.35.232	AS12353 Vodafone Portugal	`2.84ms` from Lisbon, PT
109.51.92.184	AS2860 NOS COMUNICACOES, S.A.	`2.19ms` from Lisbon, PT
106.49.220.136	AS9009 M247 Europe SRL	`0.12ms` from Milan, IT
169.155.58.184	AS40509 Fly.io, Inc.	`0.09ms` from Osasco, BR
176.128.15.152	AS5410 Bouygues Telecom SA	`9.65ms` from Paris, FR
144.22.202.8	AS31898 Oracle Corporation	`0.30ms` from Sao Paulo, BR
122.42.38.24	AS17858 LG POWERCOMM	`2.34ms` from Seoul, KR
52.76.104.24	AS16509 Amazon.com, Inc.	`0.12ms` from Singapore, SG
95.52.75.24	AS12389 PJSC Rostelecom	`9.40ms` from Stockholm, SE
3.105.37.216	AS16509 Amazon.com, Inc.	`0.16ms` from Sydney, AU
52.68.3.168	AS16509 Amazon.com, Inc.	`0.25ms` from Tokyo, JP
137.56.250.8	AS1103 SURF B.V.	`3.59ms` from Amsterdam, NL
172.110.205.24	AS55219 Cisco Systems, Inc.	`0.56ms` from Amsterdam, NL
104.8.147.232	AS7018 AT&T Enterprises, LLC	`9.00ms` from Atlanta, US
83.132.89.152	AS2860 NOS COMUNICACOES, S.A.	`12.76ms` from Braga, PT
67.141.72.136	AS7029 Windstream Communications LLC	`2.68ms` from Dallas, US
107.216.135.168	AS7018 AT&T Enterprises, LLC	`2.54ms` from Miami, US
209.226.130.56	AS577 Bell Canada	`2.06ms` from Montreal, CA
3.85.79.184	AS14618 Amazon.com, Inc.	`0.58ms` from Reston, US

Traceroute

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

traceroute -a -n -q1 -f5 113.21.238.121

traceroute to 113.21.238.121 (113.21.238.121): 64 hops max, 52 byte packets

5 [AS140979] 220.196.197.170 2.121 ms

6 *

7 *

8 [AS17621] 139.226.212.230 2.986 ms

9 [AS17621] 58.247.76.2 2.614 ms

10 *

11 [AS4812] 113.21.238.121 3.16 ms

Measurement taken from

IPinfo ProbeNet in Shanghai, CN

On December 14th 2025

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales