113.21.237.0/24

AS4812 · China Telecom (Group)

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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:  2021-08-17T02:31:00Z
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

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
113.21.237.67	AS4812 China Telecom (Group)	`3.29ms` 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
45.162.81.72	AS267975 BONAFE E OLIVEIRA LTDA	`13.87ms` from Fortaleza, BR
14.139.85.72	AS55824 NKN Core Network	`4.21ms` from Hyderabad, IN
103.133.11.8	AS134937 Speed Communication	`1.13ms` from Mumbai, IN
180.179.9.232	AS17439 NTT COMMUNICATIONS INDIA NETWORK SERVICES PRIVATE LIMITED	`0.80ms` from Mumbai, IN
93.193.245.104	AS3320 Deutsche Telekom AG	`4.37ms` from Nuernberg, DE
83.193.58.136	AS3215 Orange S.A.	`15.38ms` from Paris, FR
90.177.168.40	AS5610 O2 Czech Republic, a.s.	`1.70ms` from Prague, CZ
13.216.128.8	AS14618 Amazon.com, Inc.	`0.14ms` from Reston, US
189.145.22.184	AS8151 UNINET	`11.14ms` from Santiago de Queretaro, MX
216.9.15.40	AS18530 Isomedia, Inc.	`1.04ms` from Seattle, US
74.102.53.136	AS701 Verizon Business	`1.77ms` from Secaucus, US
1.236.190.8	AS9318 SK Broadband Co Ltd	`2.16ms` from Seoul, KR
123.159.213.40	AS4837 CHINA UNICOM China169 Backbone	`11.00ms` from Shanghai, CN
115.66.184.40	AS9506 Singtel Fibre Broadband	`1.24ms` from Singapore, SG
111.255.37.232	AS3462 Data Communication Business Group	`3.69ms` from Taichung, TW
195.38.19.8	AS57043 HOSTKEY B.V.	`3.85ms` from Amsterdam, NL
163.252.199.136	AS13977 Consolidated Communications, Inc.	`3.33ms` from Boston, US
34.133.41.232	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
75.161.38.136	AS209 CenturyLink Communications, LLC	`9.79ms` from Denver, US
18.194.33.40	AS16509 Amazon.com, Inc.	`0.47ms` from Frankfurt am Main, DE
113.234.5.248	AS4837 CHINA UNICOM China169 Backbone	`9.00ms` from Liaoyang, CN
112.227.146.120	AS4837 CHINA UNICOM China169 Backbone	`4.46ms` from Qingdao, CN
200.24.141.200	AS52468 UFINET PANAMA S.A.	`0.42ms` from Quito, EC
110.46.210.184	AS9697 LG HelloVision Corp.	`8.32ms` from Seoul, KR
223.219.81.72	AS4713 NTT DOCOMO BUSINESS,Inc.	`8.60ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -f3 113.21.237.228

traceroute to 113.21.237.228 (113.21.237.228): 64 hops max, 52 byte packets

3 [AS3356] 4.1.40.153 7.342 ms

4 *

5 [AS3356] 4.15.125.54 19.45 ms

6 *

7 *

8 *

9 *

10 [AS4812] 101.95.89.70 154.433 ms

11 *

12 [AS4812] 58.40.10.121 155.149 ms

13 [AS4812] 58.40.10.122 155.825 ms

14 *

15 *

16 *

17 [AS4812] 113.21.237.228 164.498 ms

Measurement taken from

IPinfo ProbeNet in Bend, US

On October 30th 2025

What are IP address ranges?

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