211.87.224.0/20

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	211.80.0.0/13
Registry	APNIC
ID	CERNET-CN

Pingable IPs

3,962 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
211.87.235.171	AS4538 China Education and Research Network Center	9.51ms from Beijing, CN
211.87.227.206	AS4538 China Education and Research Network Center	9.11ms from Beijing, CN
211.87.230.30	AS4538 China Education and Research Network Center	9.53ms from Beijing, CN
211.87.229.205	AS4538 China Education and Research Network Center	9.48ms from Beijing, CN
211.87.237.86	AS4538 China Education and Research Network Center	9.52ms from Beijing, CN
211.87.225.60	AS4538 China Education and Research Network Center	9.45ms from Beijing, CN
211.87.224.235	AS4538 China Education and Research Network Center	8.74ms from Beijing, CN
211.87.234.167	AS4538 China Education and Research Network Center	9.52ms from Beijing, CN
211.87.232.171	AS4538 China Education and Research Network Center	8.73ms from Beijing, CN
211.87.238.149	AS4538 China Education and Research Network Center	9.48ms from Beijing, CN
211.87.236.40	AS4538 China Education and Research Network Center	8.72ms from Beijing, CN
211.87.233.118	AS4538 China Education and Research Network Center	8.94ms from Beijing, CN
211.87.231.147	AS4538 China Education and Research Network Center	9.50ms from Beijing, CN
211.87.239.131	AS4538 China Education and Research Network Center	9.51ms from Beijing, CN
211.87.228.89	AS4538 China Education and Research Network Center	9.41ms from Beijing, CN
211.87.226.105	AS4538 China Education and Research Network Center	8.81ms from Beijing, 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
104.230.30.148	AS10796 Charter Communications Inc	13.47ms from Flint, US
94.238.22.68	AS5410 Bouygues Telecom SA	11.68ms from Lille, FR
80.239.199.244	AS1299 Arelion Sweden AB	0.17ms from Paris, FR
201.223.25.228	AS7418 TELEFÓNICA CHILE S.A.	14.55ms from Santiago, CL
187.232.69.164	AS8151 UNINET	11.88ms from Santiago de Queretaro, MX
201.43.207.116	AS27699 TELEFÔNICA BRASIL S.A	3.66ms from Sao Paulo, BR
74.92.227.164	AS7922 Comcast Cable Communications, LLC	4.92ms from Seattle, US
186.13.29.4	AS11664 Techtel LMDS Comunicaciones Interactivas S.A.	17.00ms from Buenos Aires, AR
50.99.205.228	AS852 TELUS Communications Inc.	0.74ms from Calgary, CA
217.209.33.228	AS3301 Telia Company AB	4.20ms from Copenhagen, DK
95.201.169.52	AS3301 Telia Company AB	15.17ms from Copenhagen, DK
82.128.239.68	AS16086 DNA Oyj	3.08ms from Helsinki, FI
89.109.62.52	AS12389 PJSC Rostelecom	6.20ms from Kazan, RU
31.35.55.36	AS5410 Bouygues Telecom SA	6.12ms from Marseille, FR
186.3.49.244	AS27947 Telconet S.A	0.75ms from Quito, EC
191.191.179.116	AS28573 Claro NXT Telecomunicacoes Ltda	6.64ms from Brasilia, BR
102.97.33.100	AS36925 MEDITELECOM	7.02ms from Casablanca, MA
12.29.56.100	AS7018 AT&T Enterprises, LLC	8.28ms from Chicago, US
194.55.223.100	AS3320 Deutsche Telekom AG	1.66ms from Duesseldorf, DE
51.195.54.212	AS16276 OVH SAS	0.14ms from Frankfurt am Main, DE
13.42.215.212	AS16509 Amazon.com, Inc.	0.13ms from London, GB
46.37.175.4	AS61323 ANS ACADEMY LIMITED	0.73ms from Manchester, GB
176.190.233.68	AS5410 Bouygues Telecom SA	8.44ms from Marseille, FR
121.227.85.4	AS4134 CHINANET-BACKBONE	5.46ms from Nanjing, CN
186.202.4.100	AS27715 Locaweb Serviços de Internet S/A	0.74ms from Sao Paulo, BR

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:         [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 2025-01-22
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-01-22T13:47:43Z
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 2025-01-22
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-01-22T16:25:45Z
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

Overlapping Ranges

BGP prefixes that contain 211.87.224.0/20

Range	ASN	Company	Num of IPs
211.80.0.0/13	AS4538	China Education and Research Network	524,288

Nearby Ranges

BGP prefixes that overlap with 211.87.0.0/16

Range	ASN	Company	Num of IPs
211.80.0.0/13	AS4538	China Education and Research Network	524,288
211.87.192.0/19	AS4538	China Education and Research Network	8,192
211.87.96.0/20	AS4538	China Education and Research Network	4,096
211.87.112.0/20	AS4538	China Education and Research Network	4,096
211.87.144.0/20	AS4538	China Education and Research Network	4,096
211.87.16.0/20	AS4538	China Education and Research Network	4,096
211.87.64.0/20	AS4538	China Education and Research Network	4,096
211.87.128.0/20	AS4538	China Education and Research Network	4,096
211.87.160.0/20	AS4538	China Education and Research Network	4,096
211.87.176.0/20	AS4538	China Education and Research Network	4,096
211.87.240.0/20	AS4538	China Education and Research Network	4,096
211.87.80.0/20	AS4538	China Education and Research Network	4,096
211.87.192.0/20	AS4538	China Education and Research Network	4,096
211.87.208.0/20	AS4538	China Education and Research Network	4,096
211.87.0.0/21	AS4538	China Education and Research Network	2,048
211.87.40.0/21	AS4538	China Education and Research Network	2,048
211.87.56.0/21	AS4538	China Education and Research Network	2,048
211.87.32.0/22	AS4538	China Education and Research Network	1,024
211.87.52.0/22	AS4538	China Education and Research Network	1,024
211.87.48.0/22	AS4538	China Education and Research Network	1,024
211.87.159.0/24	AS4538	China Education and Research Network	256
211.87.57.0/24	AS4538	China Education and Research Network	256
211.87.158.0/24	AS4538	China Education and Research Network	256
211.87.25.0/24	AS4538	China Education and Research Network	256

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
211.87.227.234	sharingideas.cn	1
211.87.227.210	mcsun.com.cn	1
211.87.232.123	uudark.com	1

Hosted domains API

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What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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