101.4.0.0/14

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Registry	APNIC
ID	BJR-CERNET

WHOIS Details

inetnum:        101.4.0.0 - 101.7.255.255
netname:        BJR-CERNET
descr:          China Education and Research Network
descr:          Beijing Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
remarks:        confederation
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:24Z
source:         APNIC

irt:            IRT-CERNET-AP
address:        Network Research Center,
address:        Main Bldg, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
fax-no:         +86-10-62785933
e-mail:         abuse@cernet.edu.cn
abuse-mailbox:  abuse@cernet.edu.cn
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        http://www.ccert.edu.cn
remarks:        abuse@cernet.edu.cn was validated on 2025-08-15
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-09-04T00:59:41Z
source:         APNIC

role:           ABUSE CERNETAP
country:        ZZ
address:        Network Research Center,
address:        Main Bldg, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
e-mail:         abuse@cernet.edu.cn
admin-c:        CER-AP
tech-c:         CER-AP
nic-hdl:        AC1685-AP
remarks:        Generated from irt object IRT-CERNET-AP
remarks:        abuse@cernet.edu.cn was validated on 2025-08-15
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-15T09:38:28Z
source:         APNIC

role:           CERNET Helpdesk
address:        CERNET Center
address:        Beijing 100084, China
country:        CN
phone:          +86-10-6278-4049
fax-no:         +86-10-6278-5933
e-mail:         helpdesk@cernet.edu.cn
remarks:        abuse@cernet.edu.cn
admin-c:        XL1-CN
tech-c:         SZ2-AP
nic-hdl:        CER-AP
mnt-by:         MAINT-CERNET-AP
last-modified:  2020-09-03T09:14:12Z
source:         APNIC

route:          101.4.0.0/14
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2010-12-13T06:08:01Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 101.0.0.0/8

Range	ASN	Company	Num of IPs
101.160.0.0/11	AS1221	Telstra Limited	2,097,152
101.144.0.0/12	AS9394	China TieTong Telecommunications Corporation	1,048,576
101.16.0.0/12	AS4837	China Unicom Hebei province network	1,048,576
101.224.0.0/13	AS4809	CHINANET SHANGHAI PROVINCE NETWORK	524,288
101.224.0.0/13	AS4812	CHINANET SHANGHAI PROVINCE NETWORK	524,288
101.64.0.0/13	AS4837	UNICOM ZheJiang Province Network	524,288
101.224.0.0/13	AS4811	CHINANET SHANGHAI PROVINCE NETWORK	524,288
101.112.0.0/13	AS133612	VODAFONE AUSTRALIA PTY LIMITED	524,288
101.112.0.0/13	AS18291	VODAFONE AUSTRALIA PTY LIMITED	524,288
101.140.0.0/14	AS17511	OPTAGE Inc.	262,144
101.136.0.0/14	AS17709	Asia Pacific On-Line Service Inc.	262,144
101.136.0.0/14	AS131591	Asia Pacific On-Line Service Inc.	262,144
101.72.0.0/14	AS4837	China Unicom Hebei province network	262,144
101.204.0.0/14	AS4837	UNICOM Sichuan province network	262,144
101.248.0.0/15	AS4134	CHINANET XIZANG PROVINCE NETWORK	131,072
101.34.0.0/15	AS45090	Tencent Cloud Computing (Beijing) Co., Ltd	131,072
101.76.0.0/15	AS4538	China Education and Research Network	131,072
101.60.0.0/15	AS5607	Sky UK Limited	131,072
101.42.0.0/15	AS45090	Tencent Cloud Computing (Beijing) Co., Ltd	131,072
101.132.0.0/15	AS37963	Aliyun Computing Co., LTD	131,072
101.200.0.0/15	AS37963	Aliyun Computing Co., LTD	131,072
101.108.0.0/15	AS23969	TOT Public Company Limited	131,072
101.124.0.0/16	AS23724	Beijing Jingdong 360 Degree E-commerce Co., Ltd.	65,536
101.111.0.0/16	AS9365	its communications Inc.	65,536
101.98.0.0/16	AS9790	Two Degrees Mobile Limited	65,536
101.127.0.0/16	AS138345	StarHub Internet Pte Ltd	65,536
101.255.0.0/16	AS38511	PT Remala Abadi	65,536
101.124.0.0/16	AS131486	Beijing Jingdong 360 Degree E-commerce Co., Ltd.	65,536
101.51.0.0/16	AS23969	TOT Public Company Limited	65,536
101.37.0.0/16	AS37963	Aliyun Computing Co., LTD	65,536
101.103.0.0/16	AS1221	Telstra Limited	65,536
101.202.0.0/16	AS17878	DREAMMARK1	65,536
101.51.0.0/16	AS23974	TOT Public Company Limited	65,536
101.127.0.0/16	AS55430	StarHub Internet Pte Ltd	65,536
101.40.0.0/16	AS4847	Beijing Teletron Telecom Engineering Co., Ltd.	65,536
101.39.0.0/16	AS4847	Beijing GreatWall Broadband Telecom Service Co.,Ltd.	65,536
101.197.0.0/16	AS55992	Beijing Qihu Technology Company Limited	65,536
101.129.0.0/16	AS45075	China Central Television	65,536
101.127.0.0/16	AS4657	StarHub Internet Pte Ltd	65,536
101.78.128.0/17	AS9381	HKBN Enterprise Solutions HK Limited	32,768
101.1.128.0/17	AS7522	Pikara(STNet, Incorporated)	32,768
101.33.128.0/17	AS45090	Tencent Cloud Computing (Beijing) Co., Ltd	32,768
101.33.128.0/17	AS132203	Tencent Cloud Computing (Beijing) Co., Ltd	32,768
101.99.128.0/17	AS3605	Kuentos Communications, Inc.	32,768
101.100.0.0/17	AS17492	Vector Communications Ltd	32,768
101.128.128.0/17	AS2497	Internet Initiative Japan Inc.	32,768
101.102.128.0/17	AS17676	SoftBank Corp.	32,768
101.36.128.0/17	AS23724	CNISP-Union Technology (Beijing) Co., Ltd	32,768
101.110.128.0/17	AS2914	NTT Ltd Japan Corporation	32,768

Hosted domains

There are 81 domain names hosted across 47 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
101.6.15.66	tsinghua.edu.cn	21
101.6.15.130	20230x0e.cf	2
101.6.43.243	sasablue.cn	1
101.6.240.113	skyslab.science	1
101.4.126.235	dns5.edu.cn	1
101.4.63.155	cerivi.edu.cn	1
101.6.50.104	lead-216.top	1
101.4.126.21	ntp.edu.cn	1
101.4.63.100	cerivi.edu.cn	1
101.4.102.151	ipdb.edu.cn	1
101.4.126.27	dns6.edu.cn	1
101.6.32.246	nercndata.top	1
101.4.62.36	zoom.edu.cn	1
101.6.56.69	yuanyuanz.cn	1
101.4.126.12	time.edu.cn	1
101.4.126.36	time.edu.cn	1
101.6.32.38	carnot.work	1
101.5.29.117	zhjie.site	1
101.6.8.149	thu.dev	1
101.4.62.35	dns3.edu.cn	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

9,625 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
101.4.116.110	AS4538 China Education and Research Network Center	`2.47ms` from Shenzhen, CN
101.4.140.169	AS4538 China Education and Research Network Center	`3.05ms` from Beijing, CN
101.4.132.18	AS4538 China Education and Research Network Center	`2.14ms` from Guangzhou, CN
101.5.44.149	AS4538 China Education and Research Network Center	`6.14ms` from Beijing, CN
101.5.22.2	AS4538 China Education and Research Network Center	`2.01ms` from Beijing, CN
101.4.110.155	AS4538 China Education and Research Network Center	`3.77ms` from Beijing, CN
101.4.80.200	AS4538 China Education and Research Network Center	`3.36ms` from Tianjin, CN
101.5.42.24	AS4538 China Education and Research Network Center	`5.55ms` from Beijing, CN
101.4.114.182	AS4538 China Education and Research Network Center	`1.19ms` from Hong Kong, HK
101.5.20.1	AS4538 China Education and Research Network Center	`3.48ms` from Beijing, CN
101.5.9.87	AS4538 China Education and Research Network Center	`4.78ms` from Beijing, CN
101.5.8.1	AS4538 China Education and Research Network Center	`3.47ms` from Beijing, CN
101.4.32.124	AS4538 China Education and Research Network Center	`1.64ms` from Beijing, CN
101.4.126.231	AS4538 China Education and Research Network Center	`0.60ms` from Qingdao, CN
101.5.16.1	AS4538 China Education and Research Network Center	`3.38ms` from Beijing, CN
101.4.133.21	AS4538 China Education and Research Network Center	`24.32ms` from Wuhan, CN
101.4.57.1	AS4538 China Education and Research Network Center	`3.26ms` from Beijing, CN
101.5.10.29	AS4538 China Education and Research Network Center	`7.73ms` from Beijing, CN
101.5.6.1	AS4538 China Education and Research Network Center	`2.69ms` from Beijing, CN
101.5.15.44	AS4538 China Education and Research Network Center	`4.70ms` from Beijing, CN
101.5.24.1	AS4538 China Education and Research Network Center	`3.27ms` from Beijing, CN
101.4.112.221	AS4538 China Education and Research Network Center	`2.39ms` from Shenzhen, CN
101.4.130.157	AS4538 China Education and Research Network Center	`2.53ms` from Beijing, CN
101.4.137.129	AS4538 China Education and Research Network Center	`13.63ms` from Guangzhou, CN
101.5.12.87	AS4538 China Education and Research Network Center	`6.26ms` from Tianjin, 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
86.96.113.14	AS5384 Emirates Internet	`4.73ms` from Al Fujairah City, AE
154.61.85.254	AS174 Cogent Communications, LLC	`0.31ms` from Amsterdam, NL
67.238.155.254	AS19901 Brightspeed	`11.77ms` from Atlanta, US
109.127.44.94	AS50274 Alfanet LLC	`2.02ms` from Baku, AZ
194.132.157.126	AS47467 Griffel AB	`4.06ms` from Copenhagen, DK
20.223.8.78	AS8075 Microsoft Corporation	`0.16ms` from Dublin, IE
62.224.169.254	AS3320 Deutsche Telekom AG	`5.40ms` from Frankfurt am Main, DE
77.179.134.94	AS6805 Telefonica Germany GmbH & Co.OHG	`2.84ms` from Frankfurt am Main, DE
115.168.82.94	AS4134 CHINANET-BACKBONE	`2.20ms` from Guangzhou, CN
16.163.12.78	AS16509 Amazon.com, Inc.	`0.09ms` from Hong Kong, HK
42.2.221.254	AS4760 HKT Limited	`0.87ms` from Hong Kong, HK
147.12.249.46	AS201838 Community Fibre Limited	`1.46ms` from London, GB
89.248.22.190	AS39326 Syntura Group Limited	`0.35ms` from London, GB
108.235.197.254	AS7018 AT&T Enterprises, LLC	`3.48ms` from Los Angeles, US
49.146.191.238	AS9299 Philippine Long Distance Telephone Company	`8.18ms` from Manila, PH
176.186.83.14	AS5410 Bouygues Telecom SA	`2.42ms` from Paris, FR
52.21.37.14	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US
179.87.69.14	AS26599 TELEFÔNICA BRASIL S.A	`15.64ms` from Sao Paulo, BR
121.155.155.78	AS4766 Korea Telecom	`3.12ms` from Seoul, KR
172.217.33.62	AS15169 Google LLC	`0.13ms` from Sydney, AU
36.229.130.174	AS3462 Data Communication Business Group	`1.50ms` from Taipei, TW
211.78.181.254	AS9919 New Century InfoComm Tech Co., Ltd.	`3.69ms` from Taipei, TW
91.226.51.126	AS49785 P.P.H.U AWIST	`5.62ms` from Warsaw, PL
5.237.167.110	AS58224 Iran Telecommunication Company PJS	`17.67ms` from Yerevan, AM
90.163.152.254	AS12479 Orange Espagne SA	`6.71ms` from Zaragoza, ES

Traceroute

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

traceroute -a -n -q1 -f5 -m17 101.7.67.193

traceroute to 101.7.67.193 (101.7.67.193): 17 hops max, 52 byte packets

5 [AS4134] 219.148.212.73 1.288 ms

6 [AS4134] 202.97.115.141 12.905 ms

7 *

8 *

9 [AS4538] 101.4.118.25 15.505 ms

10 *

11 [AS4538] 101.4.114.226 24.511 ms

12 *

13 *

14 [AS4538] 211.82.154.1 50.411 ms

15 *

16 *

17 *

Measurement taken from

IPinfo ProbeNet in Dalian, CN

On October 30th 2025

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