113.21.236.0/24

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:         [email protected]
abuse-mailbox:  [email protected]
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:         [email protected]
admin-c:        IP50-AP
tech-c:         IP50-AP
nic-hdl:        AC1601-AP
remarks:        Generated from irt object IRT-CNNIC-CN
remarks:        [email protected] is invalid
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-19T17:20:32Z
source:         APNIC

person:         Yu Liu
nic-hdl:        YL2243-AP
e-mail:         [email protected]
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

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

IP Address	ASN	Details
113.21.236.53	AS131314 CBC Tech International Limited	`3.78ms` 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
125.36.81.72	AS4837 CHINA UNICOM China169 Backbone	`4.38ms` from Beijing, CN
81.82.14.72	AS6848 Telenet BV	`7.19ms` from Brussels, BE
74.215.147.248	AS6181 Cincinnati Bell Telephone Company LLC	`1.97ms` from Cincinnati, US
91.44.46.88	AS3320 Deutsche Telekom AG	`2.38ms` from Frankfurt am Main, DE
192.229.73.200	AS18978 Enzu Inc	`0.78ms` from Los Angeles, US
18.100.189.232	AS16509 Amazon.com, Inc.	`5.66ms` from Madrid, ES
90.127.232.200	AS3215 Orange S.A.	`2.06ms` from Paris, FR
39.64.181.40	AS4837 CHINA UNICOM China169 Backbone	`5.85ms` from Qingdao, CN
20.99.194.56	AS8075 Microsoft Corporation	`0.33ms` from Quincy, US
3.232.23.216	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
116.33.48.72	AS17858 LG POWERCOMM	`2.70ms` from Seoul, KR
119.174.234.232	AS9824 JCOM Co., Ltd.	`10.75ms` from Tokyo, JP
71.18.39.136	AS396986 Bytedance Inc.	`0.10ms` from Toronto, CA
49.113.11.136	AS4134 CHINANET-BACKBONE	`1.81ms` from UEruemqi, CN
51.96.10.72	AS16509 Amazon.com, Inc.	`0.65ms` from Zuerich, CH
186.218.246.104	AS28573 Claro NXT Telecomunicacoes Ltda	`17.21ms` from Brasilia, BR
87.65.173.184	AS5432 Proximus NV	`3.38ms` from Brussels, BE
79.215.124.56	AS3320 Deutsche Telekom AG	`3.56ms` from Duesseldorf, DE
176.118.151.184	AS21228 VINASTERISK, PP	`0.93ms` from Kyiv, UA
220.176.0.248	AS4134 CHINANET-BACKBONE	`8.54ms` from Nanchang, CN
202.223.156.8	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`2.92ms` from Osaka, JP
85.208.145.136	AS35426 NXT Initiative SAS	`0.29ms` from Paris, FR
156.245.78.120	AS54600 PEG TECH INC	`0.17ms` from San Jose, US
125.186.118.200	AS17858 LG POWERCOMM	`5.76ms` from Seoul, KR
121.135.201.152	AS4766 Korea Telecom	`1.30ms` 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 -f2 113.21.236.108

traceroute to 113.21.236.108 (113.21.236.108): 64 hops max, 52 byte packets

2 [AS749] 26.20.160.21 1.233 ms

3 *

4 [AS45102] 116.251.86.194 2.528 ms

5 [] 123.255.90.42 2.055 ms

6 *

7 *

8 *

9 *

10 [AS131314] 113.21.236.108 39.949 ms

Measurement taken from

IPinfo ProbeNet in Hong Kong, HK

On December 28th 2025

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