101.76.40.0/21

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:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        http://www.ccert.edu.cn
remarks:        [email protected] 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:         [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
nic-hdl:        AC1685-AP
remarks:        Generated from irt object IRT-CERNET-AP
remarks:        [email protected] was validated on 2025-08-15
abuse-mailbox:  [email protected]
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:         [email protected]
remarks:        [email protected]
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 101.76.40.0/21

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 101.76.0.0/16

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

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

Pingable IPs

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

IP Address ASN Details
101.76.42.254 AS4538 China Education and Research Network Center 19.12ms from Wuhan, CN
101.76.40.19 AS4538 China Education and Research Network Center 16.28ms from Suzhou, CN
101.76.41.8 AS4538 China Education and Research Network Center 16.26ms from Suzhou, 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
145.145.3.5 AS1103 SURF B.V. 3.45ms from Amsterdam, NL
24.91.245.133 AS7922 Comcast Cable Communications, LLC 6.04ms from Boston, US
144.134.34.181 AS1221 Telstra Limited 5.18ms from Brisbane, AU
201.89.104.69 AS8167 V tal 0.93ms from Curitiba, BR
86.189.167.181 AS2856 British Telecommunications PLC 6.03ms from Erith, GB
20.239.87.117 AS8075 Microsoft Corporation 0.38ms from Hong Kong, HK
60.171.0.197 AS4134 CHINANET-BACKBONE 8.25ms from Huai'an, CN
92.27.25.69 AS13285 TalkTalk Communications Limited 5.91ms from London, GB
47.157.123.21 AS5650 Frontier Communications of America, Inc. 13.90ms from Los Angeles, US
69.166.11.117 AS7377 University of California, San Diego 2.63ms from Los Angeles, US
116.50.179.133 AS9658 Eastern Telecoms Phils., Inc. 0.29ms from Manila, PH
187.202.86.133 AS8151 UNINET 1.08ms from Mexico City, MX
212.48.55.213 AS8359 MTS PJSC 1.41ms from Moscow, RU
27.217.248.181 AS4837 CHINA UNICOM China169 Backbone 5.05ms from Qingdao, CN
87.110.90.21 AS12578 SIA Tet 0.70ms from Riga, LV
94.247.16.21 AS49255 TeleGlobal Ltd. 0.68ms from Saint Petersburg, RU
191.118.188.181 AS6535 Telmex Servicios Empresariales S.A. 17.80ms from Santiago, CL
182.61.34.101 AS38365 Beijing Baidu Netcom Science and Technology Co., Ltd. 5.44ms from Shenzhen, CN
101.191.14.37 AS1221 Telstra Limited 3.81ms from Sydney, AU
116.138.112.117 AS4837 CHINA UNICOM China169 Backbone 5.50ms from Tieling, CN
175.149.86.133 AS4837 CHINA UNICOM China169 Backbone 1.03ms from Tieling, CN
119.99.50.245 AS4134 CHINANET-BACKBONE 5.66ms from Wuhan, CN
61.163.28.101 AS4837 CHINA UNICOM China169 Backbone 6.51ms from Zhengzhou, CN
170.185.113.5 AS11686 Zayo Bandwidth 14.69ms from Chicago, US
129.109.255.245 AS14373 University of Texas Medical Branch 5.46ms from Dallas, US

Traceroute

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

$
traceroute -a -n -q1 -m27 101.76.47.26
traceroute to 101.76.47.26 (101.76.47.26): 27 hops max, 52 byte packets
3 *
4 *
5 *
6 [AS6939] 184.105.80.14 38.842 ms
7 *
8 *
9 [] 123.255.91.118 203.659 ms
10 [AS4538] 101.4.114.181 238.325 ms
11 *
12 *
13 [AS4538] 101.4.112.66 251.066 ms
14 [AS4538] 101.4.118.214 254.536 ms
15 *
16 *
17 [AS4538] 101.4.117.26 264.866 ms
18 [AS4538] 101.4.118.105 262.908 ms
19 [AS4538] 101.4.116.97 265.574 ms
20 [AS4538] 219.219.156.37 275.878 ms
21 *
22 *
23 [AS4538] 219.219.147.70 264.044 ms
24 [AS4538] 219.219.148.186 264.825 ms
25 *
26 *
27 *
Measurement taken from IPinfo ProbeNet in Sandefjord, NO
On

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