219.220.200.0/21

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 219.220.0.0/16
Registry APNIC
ID CERNET-CN

WHOIS Details

inetnum:        219.220.0.0 - 219.220.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Shanghai Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
remarks:        confederation
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-10-20T00:56:51Z
source:         APNIC

irt:            IRT-CERNET-AP
address:        Network Center,
address:        FIT-3-220, 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:        abuse@cernet.edu.cn was validated on 2026-03-05
mnt-by:         MAINT-CERNET-AP
last-modified:  2026-03-05T06:39:56Z
source:         APNIC

role:           ABUSE CERNETAP
country:        ZZ
address:        Network Center,
address:        FIT-3-220, 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 2026-03-05
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2026-03-05T06:40:20Z
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

Overlapping Ranges

BGP prefixes that contain 219.220.200.0/21

Range ASN Company Num of IPs
219.220.0.0/16 AS4538 China Education and Research Network 65,536

Nearby Ranges

BGP prefixes that overlap with 219.220.0.0/16

Range ASN Company Num of IPs
219.220.0.0/16 AS4538 China Education and Research Network 65,536

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

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

IP Address ASN Details
219.220.207.2 AS4538 China Education and Research Network Center 12.82ms from Nanjing, CN
219.220.200.10 AS4538 China Education and Research Network Center 10.45ms from Nanjing, 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
58.64.64.229 AS133481 AIS Fibre 2.09ms from Bangkok, TH
70.8.156.101 AS13977 Fidium 3.47ms from Boston, US
201.190.184.85 AS28075 ARLINK S.A. 16.95ms from Buenos Aires, AR
69.232.106.53 AS7018 AT&T Enterprises, LLC 3.44ms from Chicago, US
65.144.51.165 AS209 CenturyLink Communications, LLC 1.18ms from Dallas, US
169.151.250.5 AS2386 AT&T Enterprises, LLC 1.99ms from Dallas, US
51.9.240.165 AS6871 Plusnet 2.03ms from Erith, GB
134.41.21.149 AS855 Bell Canada 5.49ms from Fredericton, CA
61.144.8.37 AS4134 CHINANET-BACKBONE 2.30ms from Guangzhou, CN
89.213.31.117 AS31655 Gamma Telecom Holdings Ltd 3.21ms from London, GB
140.105.109.21 AS137 Consortium GARR 6.72ms from Milan, IT
79.43.83.85 AS3269 Telecom Italia S.p.A. 5.36ms from Milan, IT
31.13.131.245 AS197765 Autonomous public institution High technology park IT-park 13.47ms from Moscow, RU
179.97.159.85 AS19182 TELEFÔNICA BRASIL S.A 3.43ms from Osasco, BR
75.167.170.213 AS209 CenturyLink Communications, LLC 1.28ms from Phoenix, US
218.59.194.69 AS4837 CHINA UNICOM China169 Backbone 4.08ms from Qingdao, CN
79.43.5.53 AS3269 Telecom Italia S.p.A. 16.23ms from Rome, IT
178.64.41.197 AS12389 PJSC Rostelecom 18.04ms from Saint Petersburg, RU
187.11.152.245 AS27699 TELEFÔNICA BRASIL S.A 4.59ms from Sao Paulo, BR
49.27.181.53 AS4766 Korea Telecom 8.30ms from Seoul, KR
123.155.249.53 AS4837 CHINA UNICOM China169 Backbone 4.10ms from Shanghai, CN
217.131.188.229 AS34984 Superonline Iletisim Hizmetleri A.S. 19.32ms from Ankara, TR
207.188.253.197 AS7784 Atlantech Online, Inc. 1.44ms from Ashburn, US
181.137.97.85 AS13489 UNE EPM TELECOMUNICACIONES S.A. 15.40ms from Bogota, CO
183.214.55.133 AS56047 China Mobile communications corporation 2.79ms from Changsha, CN

Traceroute

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

$
traceroute -a -n -q1 -m8 219.220.200.19
traceroute to 219.220.200.19 (219.220.200.19): 8 hops max, 52 byte packets
3 [] 31.31.38.36 4.059 ms
4 [] 123.255.91.118 2.474 ms
5 [AS4538] 101.4.114.181 167.744 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Hong Kong, HK
On

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