202.118.0.0/19

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	202.118.0.0/16
Registry	APNIC
ID	CERNET-CN

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:         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 2025-01-22
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:         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 2025-01-22
abuse-mailbox:  abuse@cernet.edu.cn
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:         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 202.118.0.0/19

Range	ASN	Company	Num of IPs
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
202.118.0.0/15	AS4538	China Education and Research Network	131,072
202.112.0.0/13	AS4538	China Education and Research Network	524,288

BGP prefixes that are contained by 202.118.0.0/19

Range	ASN	Company	Num of IPs
202.118.27.0/24	AS4538	China Education and Research Network	256
202.118.2.0/23	AS4538	China Education and Research Network	512
202.118.4.0/22	AS4538	China Education and Research Network	1,024

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
202.118.224.0/19	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
202.118.238.0/24	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 5 domain names hosted across 6 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
202.118.1.81	time.edu.cn	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

1,223 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
202.118.24.174	AS4538 China Education and Research Network Center	2.82ms from Liaoyang, CN
202.118.1.213	AS4538 China Education and Research Network Center	2.63ms from Liaoyang, CN
202.118.18.215	AS4538 China Education and Research Network Center	2.55ms from Liaoyang, CN
202.118.8.19	AS4538 China Education and Research Network Center	6.70ms from Liaoyang, CN
202.118.12.5	AS4538 China Education and Research Network Center	2.73ms from Liaoyang, CN
202.118.17.62	AS4538 China Education and Research Network Center	6.49ms from Dalian, CN
202.118.15.28	AS4538 China Education and Research Network Center	2.75ms from Liaoyang, CN
202.118.31.34	AS4538 China Education and Research Network Center	2.58ms from Liaoyang, CN
202.118.16.247	AS4538 China Education and Research Network Center	2.58ms from Liaoyang, CN
202.118.19.56	AS4538 China Education and Research Network Center	6.47ms from Liaoyang, CN
202.118.3.198	AS4538 China Education and Research Network Center	13.64ms from Beijing, CN
202.118.28.199	AS4538 China Education and Research Network Center	6.81ms from Dalian, CN
202.118.26.45	AS4538 China Education and Research Network Center	2.48ms from Liaoyang, CN
202.118.29.22	AS4538 China Education and Research Network Center	7.63ms from Dalian, CN
202.118.11.89	AS4538 China Education and Research Network Center	6.50ms from Liaoyang, CN
202.118.13.23	AS4538 China Education and Research Network Center	2.78ms from Liaoyang, CN
202.118.0.201	AS4538 China Education and Research Network Center	6.50ms from Liaoyang, CN
202.118.7.181	AS4538 China Education and Research Network Center	13.42ms from Beijing, CN
202.118.23.205	AS4538 China Education and Research Network Center	7.46ms from Dalian, CN
202.118.6.219	AS4538 China Education and Research Network Center	13.61ms from Beijing, CN
202.118.5.145	AS4538 China Education and Research Network Center	13.66ms from Beijing, CN
202.118.30.1	AS4538 China Education and Research Network Center	2.85ms from Liaoyang, CN
202.118.21.118	AS4538 China Education and Research Network Center	2.76ms from Liaoyang, CN
202.118.4.172	AS4538 China Education and Research Network Center	13.52ms from Beijing, CN
202.118.22.27	AS4538 China Education and Research Network Center	6.58ms from Liaoyang, 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
63.160.2.19	AS174 Cogent Communications	10.17ms from Ashburn, US
174.85.213.227	AS20115 Charter Communications LLC	19.38ms from Atlanta, US
198.177.126.3	AS22612 Namecheap, Inc.	0.63ms from Atlanta, US
110.32.234.83	AS4804 Microplex PTY LTD	1.50ms from Brisbane, AU
98.97.104.115	AS14593 Space Exploration Technologies Corporation	13.09ms from Denver, US
4.192.74.179	AS8075 Microsoft Corporation	0.25ms from Hong Kong, HK
117.197.140.195	AS9829 National Internet Backbone	9.38ms from Kolkata, IN
119.113.221.51	AS4837 CHINA UNICOM China169 Backbone	9.19ms from Liaoyang, CN
79.145.227.3	AS3352 TELEFONICA DE ESPANA S.A.U.	13.73ms from Madrid, ES
83.50.176.115	AS3352 TELEFONICA DE ESPANA S.A.U.	8.82ms from Madrid, ES
35.244.185.195	AS396982 Google LLC	0.07ms from Melbourne, AU
133.123.118.35	AS7522 STNet, Incorporated	8.88ms from Osaka, JP
72.216.217.19	AS22773 Cox Communications Inc.	1.22ms from Phoenix, US
177.140.72.195	AS28573 Claro NXT Telecomunicacoes Ltda	7.28ms from Sao Paulo, BR
24.18.31.131	AS7922 Comcast Cable Communications, LLC	7.56ms from Seattle, US
114.47.31.147	AS3462 Data Communication Business Group	5.46ms from Taichung, TW
150.116.24.179	AS18046 DongFong Technology Co. Ltd.	4.00ms from Taipei, TW
193.225.127.99	AS1955 KIFU (Governmental Info Tech Development Agency)	0.35ms from Budapest, HU
36.212.68.83	AS9808 China Mobile Communications Group Co., Ltd.	0.46ms from Chengdu, CN
34.55.43.67	AS396982 Google LLC	0.11ms from Council Bluffs, US
217.234.115.163	AS3320 Deutsche Telekom AG	8.83ms from Frankfurt am Main, DE
134.96.87.227	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	5.61ms from Frankfurt am Main, DE
77.81.183.3	AS213212 FixCloud Teknoloji A.S.	9.29ms from Istanbul, TR
193.77.85.179	AS5603 Telekom Slovenije, d.d.	0.78ms from Ljubljana, SI
192.238.226.3	AS138995 Antbox Networks Limited	0.30ms from Los Angeles, US

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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