211.87.56.0/21

AS4538 · China Education and Research Network Center

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Summary

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

WHOIS Details

inetnum:        211.86.0.0 - 211.87.255.255
netname:        CERNET-CN
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
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-10-20T00:56:37Z
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

Nearby Ranges

BGP prefixes that overlap with 211.87.0.0/16

No nearby ranges found.

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
86.89.98.197	AS1136 KPN B.V.	`1.21ms` from Amsterdam, NL
149.107.238.101	AS272066 FIBRAZUL INTERNET S.R.L.	`2.09ms` from Buenos Aires, AR
169.46.134.101	AS36351 IBM Cloud	`1.35ms` from Dallas, US
108.128.236.213	AS16509 Amazon.com, Inc.	`0.19ms` from Dublin, IE
116.32.56.21	AS17858 LG POWERCOMM	`1.89ms` from Incheon, KR
73.1.24.117	AS7922 Comcast Cable Communications, LLC	`2.36ms` from Miami, US
122.6.136.181	AS4134 CHINANET-BACKBONE	`5.88ms` from Qingdao, CN
63.252.34.181	AS7029 Windstream Communications LLC	`7.36ms` from Secaucus, US
211.185.124.85	AS4766 Korea Telecom	`5.28ms` from Seoul, KR
125.103.142.5	AS17506 ARTERIA Networks Corporation	`0.60ms` from Tokyo, JP
85.8.81.181	AS9145 EWE TEL GmbH	`6.10ms` from Amsterdam, NL
207.14.224.5	AS174 Cogent Communications, LLC	`19.06ms` from Ashburn, US
197.51.252.165	AS8452 TE-AS	`9.15ms` from Cairo, EG
129.79.1.101	AS87 Indiana University	`5.17ms` from Chicago, US
67.53.162.213	AS11427 Charter Communications Inc	`13.75ms` from Dallas, US
62.67.79.37	AS3356 Level 3 Parent, LLC	`0.37ms` from Dublin, IE
185.224.248.53	AS56630 Melbikomas UAB	`0.15ms` from Frankfurt am Main, DE
108.137.42.53	AS16509 Amazon.com, Inc.	`0.12ms` from Jakarta, ID
81.1.72.101	AS13285 TalkTalk Communications Limited	`0.55ms` from London, GB
15.152.151.197	AS16509 Amazon.com, Inc.	`0.66ms` from Osaka, JP
160.86.148.21	AS2527 Sony Network Communications Inc.	`2.30ms` from Osaka, JP
177.155.247.21	AS52778 SANER TELECOM INFORMATICA LTDA ME	`17.70ms` from Osasco, BR
86.195.150.69	AS3215 Orange S.A.	`11.19ms` from Paris, FR
178.87.9.181	AS25019 Saudi Telecom Company JSC	`2.48ms` from Riyadh, SA
71.231.68.5	AS7922 Comcast Cable Communications, LLC	`6.36ms` from Seattle, US

Traceroute

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

traceroute -a -n -q1 -f5 -m16 211.87.61.188

traceroute to 211.87.61.188 (211.87.61.188): 16 hops max, 52 byte packets

5 [] 27.111.228.228 15.062 ms

6 *

7 [AS58453] 223.120.3.86 53.379 ms

8 [AS58453] 223.119.81.94 47.271 ms

9 [AS4538] 101.4.114.221 87.956 ms

10 [AS4538] 101.4.116.121 77.728 ms

11 *

12 [AS4538] 101.4.117.81 84.714 ms

13 [AS4538] 101.4.115.145 77.322 ms

14 *

15 *

16 *

Measurement taken from

IPinfo ProbeNet in Jakarta, ID

On January 18th 2026

What are IP address ranges?

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