202.198.0.0/21

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	202.198.0.0/15
Registry	APNIC
ID	CERNET-CN

Pingable IPs

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

IP Address	ASN	Details
202.198.0.209	AS4538 China Education and Research Network Center	11.31ms from Dalian, 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
87.208.17.149	AS50266 Odido Netherlands B.V.	7.24ms from Amsterdam, NL
181.102.246.37	AS7303 Telecom Argentina S.A.	8.12ms from Buenos Aires, AR
87.53.244.117	AS3292 TDC Holding A/S	0.67ms from Copenhagen, DK
34.28.208.181	AS396982 Google LLC	0.14ms from Council Bluffs, US
31.211.46.213	AS56707 OOO NETCOM	4.31ms from Novosibirsk, RU
189.189.53.85	AS8151 UNINET	4.03ms from Santiago de Queretaro, MX
112.167.238.149	AS4766 Korea Telecom	3.42ms from Seoul, KR
125.141.121.229	AS4766 Korea Telecom	1.63ms from Seoul, KR
20.167.58.101	AS8075 Microsoft Corporation	0.71ms from Sydney, AU
124.211.198.213	AS2516 KDDI CORPORATION	8.00ms from Tokyo, JP
73.194.168.21	AS7922 Comcast Cable Communications, LLC	9.08ms from Ashburn, US
209.17.123.37	AS19871 Network Solutions, LLC	0.67ms from Atlanta, US
80.160.120.21	AS3292 TDC Holding A/S	0.70ms from Copenhagen, DK
217.208.25.21	AS3301 Telia Company AB	2.97ms from Copenhagen, DK
201.25.136.149	AS8167 V tal	1.39ms from Curitiba, BR
73.11.23.229	AS7922 Comcast Cable Communications, LLC	6.57ms from Portland, US
201.57.225.213	AS4230 CLARO S.A.	7.48ms from Rio de Janeiro, BR
118.51.38.229	AS4766 Korea Telecom	2.25ms from Seoul, KR
171.43.241.101	AS58563 CHINANET Hubei province network	1.24ms from Wuhan, CN
87.188.215.181	AS3320 Deutsche Telekom AG	4.89ms from Frankfurt am Main, DE
182.183.28.213	AS17557 Pakistan Telecommunication Company Limited	1.80ms from Islamabad, PK
71.13.115.37	AS20115 Charter Communications LLC	6.63ms from Minneapolis, US
115.31.9.21	AS7522 STNet, Incorporated	5.55ms from Osaka, JP
156.238.2.5	AS141167 AgotoZ HK Limited	0.19ms from San Jose, US
98.37.202.69	AS7922 Comcast Cable Communications, LLC	6.96ms from San Jose, US

WHOIS Details

inetnum:        202.192.0.0 - 202.199.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          SY Region
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:        service provider
remarks:        [email protected] 960130
mnt-by:         APNIC-HM
mnt-irt:        IRT-CERNET-AP
last-modified:  2021-10-30T08:29:34Z
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
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 202.198.0.0/21

Range	ASN	Company	Num of IPs
202.198.0.0/15	AS4538	China Education and Research Network	131,072
202.192.0.0/13	AS4538	China Education and Research Network	524,288
202.192.0.0/12	AS4538	China Education and Research Network	1,048,576

BGP prefixes that are contained by 202.198.0.0/21

Range	ASN	Company	Num of IPs
202.198.1.0/24	AS4538	China Education and Research Network	256
202.198.0.0/24	AS4538	China Education and Research Network	256

Nearby Ranges

BGP prefixes that overlap with 202.198.0.0/16

Range	ASN	Company	Num of IPs
202.192.0.0/12	AS4538	China Education and Research Network	1,048,576
202.192.0.0/13	AS4538	China Education and Research Network	524,288
202.198.0.0/15	AS4538	China Education and Research Network	131,072
202.198.192.0/19	AS4538	China Education and Research Network	8,192
202.198.32.0/19	AS4538	China Education and Research Network	8,192
202.198.144.0/20	AS4538	China Education and Research Network	4,096
202.198.240.0/20	AS4538	China Education and Research Network	4,096
202.198.16.0/20	AS4538	China Education and Research Network	4,096
202.198.128.0/20	AS4538	China Education and Research Network	4,096
202.198.64.0/20	AS4538	China Education and Research Network	4,096
202.198.176.0/20	AS4538	China Education and Research Network	4,096
202.198.160.0/20	AS4538	China Education and Research Network	4,096
202.198.88.0/21	AS4538	China Education and Research Network	2,048
202.198.104.0/21	AS4538	China Education and Research Network	2,048
202.198.8.0/21	AS4538	China Education and Research Network	2,048
202.198.100.0/22	AS4538	China Education and Research Network	1,024
202.198.96.0/23	AS4538	China Education and Research Network	512
202.198.1.0/24	AS4538	China Education and Research Network	256
202.198.177.0/24	AS4538	China Education and Research Network	256
202.198.180.0/24	AS4538	China Education and Research Network	256
202.198.98.0/24	AS4538	China Education and Research Network	256
202.198.91.0/24	AS4538	China Education and Research Network	256
202.198.99.0/24	AS4538	China Education and Research Network	256
202.198.11.0/24	AS4538	China Education and Research Network	256
202.198.0.0/24	AS4538	China Education and Research Network	256
202.198.224.0/24	AS4538	China Education and Research Network	256
202.198.201.0/24	AS4538	China Education and Research Network	256

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

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

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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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