202.118.238.0/24

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	202.118.224.0/19
Registry	APNIC
ID	CERNET-CN

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
5.193.67.152	AS5384 Emirates Internet	2.69ms from Al Fujairah City, AE
154.246.112.40	AS36947 Telecom Algeria	15.99ms from Algiers, DZ
23.47.178.104	AS16625 Akamai Technologies, Inc.	0.51ms from Atlanta, US
39.106.14.8	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	1.94ms from Beijing, CN
155.198.145.104	AS786 Jisc Services Limited	1.40ms from London, GB
182.214.210.56	AS17858 LG POWERCOMM	5.60ms from Seoul, KR
24.129.251.248	AS27364 Armstrong	8.59ms from Chicago, US
81.103.105.248	AS5089 Virgin Media Limited	10.93ms from London, GB
23.39.77.248	AS6762 TELECOM ITALIA SPARKLE S.p.A.	0.20ms from Palermo, IT
148.218.27.104	AS28477 UNIVERSIDAD AUTONOMA DEL ESTADO DE MORELOS	5.74ms from Santiago de Queretaro, MX
79.175.167.216	AS25184 Afranet	14.54ms from Baku, AZ
18.60.194.120	AS16509 Amazon.com, Inc.	1.30ms from Hyderabad, IN
223.95.104.120	AS56041 China Mobile communications corporation	12.32ms from Suzhou, CN
13.210.216.168	AS16509 Amazon.com, Inc.	0.11ms from Sydney, AU
18.199.1.24	AS16509 Amazon.com, Inc.	0.15ms from Frankfurt am Main, DE
79.160.23.120	AS29695 Altibox AS	9.20ms from Oslo, NO
195.169.74.184	AS1103 SURF B.V.	18.50ms from The Hague, NL
101.5.138.8	AS4538 China Education and Research Network Center	9.52ms from Beijing, CN
208.93.218.248	AS7018 AT&T Enterprises, LLC	1.09ms from New York City, US
68.205.102.152	AS33363 Charter Communications, Inc	6.00ms from Orlando, US
80.14.222.216	AS3215 Orange S.A.	2.15ms from Paris, FR
104.100.69.104	AS16625 Akamai Technologies, Inc.	0.60ms from San Jose, US
35.155.160.232	AS16509 Amazon.com, Inc.	0.19ms from Boardman, US
35.80.24.248	AS16509 Amazon.com, Inc.	0.19ms from Boardman, US
75.69.150.248	AS7922 Comcast Cable Communications, LLC	6.65ms from Boston, US

WHOIS Details

inetnum:        202.112.0.0 - 202.121.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          China Education and Research Network Center
descr:          Tsinghua University
descr:          Beijing, 100084
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:29Z
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 202.118.238.0/24

Range	ASN	Company	Num of IPs
202.118.224.0/19	AS4538	China Education and Research Network	8,192
202.118.0.0/16	AS24369	China Education and Research Network	65,536
202.118.0.0/16	AS4538	China Education and Research Network	65,536
202.118.0.0/15	AS4538	China Education and Research Network	131,072
202.112.0.0/13	AS4538	China Education and Research Network	524,288

Nearby Ranges

BGP prefixes that overlap with 202.118.0.0/16

Range	ASN	Company	Num of IPs
202.112.0.0/13	AS4538	China Education and Research Network	524,288
202.118.0.0/15	AS4538	China Education and Research Network	131,072
202.118.0.0/16	AS4538	China Education and Research Network	65,536
202.118.0.0/16	AS24369	China Education and Research Network	65,536
202.118.0.0/19	AS4538	China Education and Research Network	8,192
202.118.224.0/19	AS4538	China Education and Research Network	8,192
202.118.128.0/20	AS4538	China Education and Research Network	4,096
202.118.96.0/20	AS4538	China Education and Research Network	4,096
202.118.80.0/20	AS4538	China Education and Research Network	4,096
202.118.176.0/20	AS4538	China Education and Research Network	4,096
202.118.208.0/20	AS4538	China Education and Research Network	4,096
202.118.64.0/20	AS4538	China Education and Research Network	4,096
202.118.48.0/20	AS4538	China Education and Research Network	4,096
202.118.192.0/20	AS4538	China Education and Research Network	4,096
202.118.120.0/21	AS4538	China Education and Research Network	2,048
202.118.32.0/21	AS4538	China Education and Research Network	2,048
202.118.160.0/21	AS4538	China Education and Research Network	2,048
202.118.40.0/21	AS4538	China Education and Research Network	2,048
202.118.40.0/21	AS24369	China Education and Research Network	2,048
202.118.116.0/22	AS4538	China Education and Research Network	1,024
202.118.168.0/22	AS4538	China Education and Research Network	1,024
202.118.4.0/22	AS4538	China Education and Research Network	1,024
202.118.252.0/22	AS4538	China Education and Research Network	1,024
202.118.250.0/23	AS4538	China Education and Research Network	512
202.118.2.0/23	AS4538	China Education and Research Network	512
202.118.72.0/24	AS4538	China Education and Research Network	256
202.118.27.0/24	AS4538	China Education and Research Network	256
202.118.222.0/24	AS4538	China Education and Research Network	256
202.118.164.0/24	AS4538	China Education and Research Network	256
202.118.198.0/24	AS4538	China Education and Research Network	256
202.118.66.0/24	AS4538	China Education and Research Network	256
202.118.191.0/24	AS4538	China Education and Research Network	256
202.118.190.0/24	AS4538	China Education and Research Network	256
202.118.87.0/24	AS4538	China Education and Research Network	256

Hosted domains

There are no domains currently hosted on this ASN.

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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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