101.77.0.0/16

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	101.76.0.0/15
Registry	APNIC
ID	NJR-CERNET

WHOIS Details

inetnum:        101.76.0.0 - 101.77.255.255
netname:        NJR-CERNET
descr:          China Education and Research Network
descr:          Nanjing 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:  2025-11-18T00:26:28Z
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:          101.76.0.0/15
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2010-12-13T06:08:02Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 101.77.0.0/16

Range	ASN	Company	Num of IPs
101.76.0.0/15	AS4538	China Education and Research Network	131,072

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	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
101.224.0.0/13	AS4809	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
101.136.0.0/14	AS17709	Asia Pacific On-Line Service Inc.	262,144
101.140.0.0/14	AS17511	OPTAGE 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
101.4.0.0/14	AS4538	China Education and Research Network	262,144
101.42.0.0/15	AS45090	Tencent Cloud Computing (Beijing) Co., Ltd	131,072
101.76.0.0/15	AS4538	China Education and Research Network	131,072
101.34.0.0/15	AS45090	Tencent Cloud Computing (Beijing) Co., Ltd	131,072
101.248.0.0/15	AS4134	CHINANET XIZANG PROVINCE NETWORK	131,072
101.60.0.0/15	AS5607	Sky UK Limited	131,072
101.108.0.0/15	AS23969	TOT Public Company Limited	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
101.111.0.0/16	AS9365	its communications Inc.	65,536
101.98.0.0/16	AS9790	Two Degrees Mobile Limited	65,536
101.37.0.0/16	AS37963	Aliyun Computing Co., LTD	65,536
101.202.0.0/16	AS17878	DREAMMARK1	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	AS23974	TOT Public Company Limited	65,536
101.103.0.0/16	AS1221	Telstra Limited	65,536
101.51.0.0/16	AS23969	TOT Public Company Limited	65,536
101.124.0.0/16	AS23724	Beijing Jingdong 360 Degree E-commerce Co., Ltd.	65,536
101.127.0.0/16	AS55430	StarHub Internet Pte Ltd	65,536
101.39.0.0/16	AS4847	Beijing GreatWall Broadband Telecom Service Co.,Ltd.	65,536
101.40.0.0/16	AS4847	Beijing Teletron Telecom Engineering Co., Ltd.	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
101.197.0.0/16	AS55992	Beijing Qihu Technology Company Limited	65,536
101.78.128.0/17	AS9381	HKBN Enterprise Solutions HK Limited	32,768
101.33.128.0/17	AS45090	Tencent Cloud Computing (Beijing) Co., Ltd	32,768
101.1.128.0/17	AS7522	Pikara(STNet, Incorporated)	32,768
101.33.128.0/17	AS132203	Tencent Cloud Computing (Beijing) Co., Ltd	32,768
101.102.128.0/17	AS17676	SoftBank Corp.	32,768
101.100.0.0/17	AS17492	Vector Communications Ltd	32,768
101.110.128.0/17	AS2914	NTT Ltd Japan Corporation	32,768
101.128.128.0/17	AS2497	Internet Initiative Japan Inc.	32,768
101.235.0.0/17	AS10036	DLIVE	32,768
101.36.128.0/17	AS23724	CNISP-Union Technology (Beijing) Co., Ltd	32,768

Hosted domains

There are 3 domain names hosted across 3 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
101.77.121.31	xn--zg-jo3cv7ojfx15f2ffpih62do10a6ef7onzl1c0jza.online	1
101.77.89.4	sfezn.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

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

IP Address	ASN	Details
101.77.93.12	AS4538 China Education and Research Network Center	`10.78ms` from Shanghai, CN
101.77.240.1	AS4538 China Education and Research Network Center	`7.19ms` from Shanghai, CN
101.77.117.82	AS4538 China Education and Research Network Center	`9.71ms` from Shanghai, CN
101.77.52.47	AS4538 China Education and Research Network Center	`8.19ms` from Shanghai, CN
101.77.136.1	AS4538 China Education and Research Network Center	`11.03ms` from Shanghai, CN
101.77.75.1	AS4538 China Education and Research Network Center	`14.04ms` from Shanghai, CN
101.77.71.127	AS4538 China Education and Research Network Center	`12.18ms` from Shanghai, CN
101.77.63.1	AS4538 China Education and Research Network Center	`21.35ms` from Wuhan, CN
101.77.83.1	AS4538 China Education and Research Network Center	`14.90ms` from Shanghai, CN
101.77.91.158	AS4538 China Education and Research Network Center	`11.65ms` from Shanghai, CN
101.77.49.254	AS4538 China Education and Research Network Center	`12.26ms` from Shanghai, CN
101.77.55.33	AS4538 China Education and Research Network Center	`11.13ms` from Shanghai, CN
101.77.73.19	AS4538 China Education and Research Network Center	`10.10ms` from Shanghai, CN
101.77.69.254	AS4538 China Education and Research Network Center	`16.37ms` from Nanjing, CN
101.77.27.1	AS4538 China Education and Research Network Center	`9.95ms` from Shanghai, CN
101.77.54.1	AS4538 China Education and Research Network Center	`10.70ms` from Shanghai, CN
101.77.178.21	AS4538 China Education and Research Network Center	`15.38ms` from Shanghai, CN
101.77.144.1	AS4538 China Education and Research Network Center	`10.37ms` from Shanghai, CN
101.77.92.94	AS4538 China Education and Research Network Center	`12.23ms` from Shanghai, CN
101.77.77.1	AS4538 China Education and Research Network Center	`14.66ms` from Shanghai, CN
101.77.159.1	AS4538 China Education and Research Network Center	`9.17ms` from Shanghai, CN
101.77.57.60	AS4538 China Education and Research Network Center	`11.53ms` 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
24.43.15.32	AS20001 Charter Communications Inc	`0.82ms` from Los Angeles, US
210.56.233.80	AS9224 Swoop Telecommunications Pty Ltd	`2.41ms` from Melbourne, AU
108.191.189.16	AS33363 Charter Communications, Inc	`12.35ms` from Orlando, US
34.163.67.240	AS396982 Google LLC	`0.11ms` from Paris, FR
209.233.144.208	AS7018 AT&T Enterprises, LLC	`9.28ms` from Philadelphia, US
72.216.155.96	AS22773 Cox Communications Inc.	`3.95ms` from Phoenix, US
54.221.7.192	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
2.45.123.64	AS30722 Vodafone Italia S.p.A.	`9.44ms` from Rome, IT
212.115.112.0	AS216023 EAST STARK-TV LLC	`0.47ms` from Tashkent, UZ
218.110.207.64	AS2527 Sony Network Communications Inc.	`2.99ms` from Tokyo, JP
102.208.107.192	AS328840 ST DIGITAL	`0.52ms` from Douala, CM
138.19.172.80	AS9269 Hong Kong Broadband Network Ltd.	`1.24ms` from Hong Kong, HK
212.154.49.224	AS12735 TurkNet Iletisim Hizmetleri A.S.	`0.91ms` from Istanbul, TR
81.156.144.128	AS2856 British Telecommunications PLC	`2.21ms` from London, GB
110.73.184.112	AS4837 CHINA UNICOM China169 Backbone	`5.40ms` from Nanning, CN
153.223.103.160	AS4713 NTT DOCOMO BUSINESS,Inc.	`8.87ms` from Osaka, JP
32.213.19.160	AS46690 Southern New England Telephone Company and SNET America, Inc.	`8.51ms` from Secaucus, US
14.5.142.48	AS17858 LG POWERCOMM	`2.56ms` from Seoul, KR
172.188.12.112	AS8075 Microsoft Corporation	`0.72ms` from Singapore, SG
97.91.239.192	AS20115 Charter Communications LLC	`5.72ms` from St. Louis, US
153.150.41.160	AS4713 NTT DOCOMO BUSINESS,Inc.	`7.24ms` from Tokyo, JP
85.199.78.112	AS12693 e.discom Telekommunikation GmbH	`5.46ms` from Berlin, DE
20.141.235.48	AS8070 Microsoft Corporation	`0.66ms` from Boydton, US
164.132.159.224	AS16276 OVH SAS	`0.05ms` from Gravelines, FR
23.112.191.208	AS7018 AT&T Enterprises, LLC	`9.36ms` from Houston, US

Traceroute

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

traceroute -a -n -q1 -m18 101.77.94.184

traceroute to 101.77.94.184 (101.77.94.184): 18 hops max, 52 byte packets

1 [AS4837] 122.114.171.254 0.319 ms

2 *

3 [AS4837] 218.28.198.221 2.318 ms

4 *

5 *

6 [AS4837] 219.158.101.37 20.416 ms

7 *

8 [AS4837] 219.158.44.86 20.643 ms

9 [AS4538] 101.4.118.54 21.033 ms

10 [AS4538] 101.4.112.41 27.119 ms

11 [AS4538] 101.4.116.97 26.352 ms

12 [AS4538] 219.219.156.37 26.77 ms

13 *

14 *

15 [AS4538] 219.219.148.166 32.225 ms

16 *

17 *

18 *

Measurement taken from

IPinfo ProbeNet in Zhengzhou, CN

On November 14th 2025

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