219.220.176.0/20

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 219.220.176.0/20

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

Read more

Pingable IPs

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

IP Address	ASN	Details
219.220.176.118	AS4538 China Education and Research Network Center	`2.90ms` 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
102.180.198.100	AS37577 Orange Burkina Faso	`19.46ms` from Accra, GH
4.231.100.20	AS8075 Microsoft Corporation	`0.29ms` from Amsterdam, NL
170.100.206.244	AS20115 Charter Communications LLC	`0.76ms` from Ashburn, US
149.200.120.196	AS5483 Magyar Telekom Plc.	`0.83ms` from Budapest, HU
76.77.150.212	AS13767 DataBank Holdings, Ltd.	`0.73ms` from Houston, US
20.108.82.100	AS8075 Microsoft Corporation	`0.25ms` from London, GB
99.157.194.100	AS7018 AT&T Enterprises, LLC	`17.47ms` from Miami, US
168.138.66.148	AS31898 Oracle Corporation	`0.14ms` from Montreal, CA
31.42.223.4	AS56476 City-Line Ltd.	`5.42ms` from Moscow, RU
167.206.225.212	AS6128 Cablevision Systems Corp.	`1.76ms` from New York City, US
35.138.182.180	AS33363 Charter Communications, Inc	`7.97ms` from Orlando, US
90.0.15.20	AS3215 Orange S.A.	`11.95ms` from Paris, FR
200.93.215.212	AS27947 Telconet S.A	`1.22ms` from Quito, EC
151.25.255.4	AS1267 WIND TRE S.P.A.	`4.29ms` from Rome, IT
192.154.98.196	AS53850 GorillaServers, Inc.	`0.99ms` from Salt Lake City, US
148.87.53.132	AS1215 Oracle Corporation	`2.89ms` from San Jose, US
140.142.183.100	AS73 University of Washington	`0.72ms` from Seattle, US
182.170.112.196	AS2527 Sony Network Communications Inc.	`2.49ms` from Tokyo, JP
46.45.47.212	AS51515 Vega-Service, LLC	`5.34ms` from Yekaterinburg, RU
173.233.136.228	AS7979 Servers.com, Inc.	`0.15ms` from Ashburn, US
20.173.4.228	AS8075 Microsoft Corporation	`0.22ms` from Az Za`ayin, QA
166.131.39.244	AS20057 AT&T Enterprises, LLC	`6.12ms` from Dallas, US
38.28.94.20	AS13693 Vexus Fiber	`10.99ms` from Denver, US
62.227.36.20	AS3320 Deutsche Telekom AG	`10.01ms` from Frankfurt am Main, DE
90.242.172.116	AS5378 Vodafone Limited	`5.52ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -f6 -m9 219.220.186.51

traceroute to 219.220.186.51 (219.220.186.51): 9 hops max, 52 byte packets

6 [AS4538] 219.224.103.225 5.202 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Shanghai, CN

On March 13th 2026

What are IP address ranges?

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