202.199.80.0/21

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

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:        hostmaster@apnic.net 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:         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 202.199.80.0/21

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 202.199.80.0/21

Range ASN Company Num of IPs
202.199.87.0/24 AS4538 China Education and Research Network 256

Nearby Ranges

BGP prefixes that overlap with 202.199.0.0/16

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
202.199.0.0/20 AS4538 China Education and Research Network 4,096
202.199.160.0/20 AS4538 China Education and Research Network 4,096
202.199.96.0/20 AS4538 China Education and Research Network 4,096
202.199.224.0/20 AS4538 China Education and Research Network 4,096
202.199.64.0/20 AS4538 China Education and Research Network 4,096
202.199.32.0/20 AS4538 China Education and Research Network 4,096
202.199.144.0/20 AS4538 China Education and Research Network 4,096
202.199.128.0/20 AS4538 China Education and Research Network 4,096
202.199.248.0/21 AS4538 Anshan Normal College 2,048
202.199.112.0/21 AS4538 China Education and Research Network 2,048
202.199.24.0/21 AS4538 China Education and Research Network 2,048
202.199.88.0/21 AS4538 China Education and Research Network 2,048
202.199.240.0/21 AS4538 Anshan Institute of Iron and Steel Technology 2,048
202.199.184.0/22 AS4538 China Education and Research Network 1,024
202.199.16.0/22 AS4538 China Education and Research Network 1,024
202.199.87.0/24 AS4538 China Education and Research Network 256
202.199.136.0/24 AS4538 China Education and Research Network 256
202.199.186.0/24 AS4538 China Education and Research Network 256
202.199.158.0/24 AS4538 China Education and Research Network 256
202.199.155.0/24 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
202.199.81.81 cmcs2021.com 1

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

Pingable IPs

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

IP Address ASN Details
202.199.81.98 AS4538 China Education and Research Network Center 17.05ms from Beijing, CN
202.199.80.235 AS4538 China Education and Research Network Center 14.80ms from Beijing, CN
202.199.82.2 AS4538 China Education and Research Network Center 19.29ms 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
87.65.86.149 AS5432 Proximus NV 5.94ms from Amsterdam, NL
217.13.124.213 AS24592 ECONOCOM CLOUD SL 6.65ms from Barcelona, ES
66.195.54.197 AS3549 Level 3 Parent, LLC 1.30ms from Cincinnati, US
65.59.94.69 AS3356 Level 3 Parent, LLC 0.42ms from Denver, US
103.37.202.5 AS152707 Tarasima Apparels Limited 0.66ms from Dhaka, BD
91.2.47.37 AS3320 Deutsche Telekom AG 9.77ms from Frankfurt am Main, DE
95.250.196.101 AS3269 Telecom Italia S.p.A. 8.66ms from Milan, IT
172.104.11.85 AS63949 Akamai Connected Cloud 0.14ms from Morris Plains, US
58.13.114.117 AS17506 ARTERIA Networks Corporation 1.48ms from Osaka, JP
50.22.145.85 AS36351 IBM Cloud 1.00ms from Dallas, US
164.42.15.21 AS16649 Interamerican University of Puerto Rico 0.18ms from Istanbul, TR
84.253.50.245 AS3303 Swisscom (Switzerland) Ltd 1.05ms from Lausanne, CH
161.248.19.229 AS153284 NILESH 13.19ms from Mumbai, IN
117.232.121.197 AS9829 National Internet Backbone 2.18ms from Mumbai, IN
114.231.32.165 AS4134 CHINANET-BACKBONE 8.30ms from Shanghai, CN
5.135.24.213 AS16276 OVH SAS 0.04ms from Gravelines, FR
187.205.99.181 AS8151 UNINET 7.57ms from Guadalajara, MX
23.50.222.197 AS16625 Akamai Technologies, Inc. 0.29ms from Mumbai, IN
84.210.82.101 AS41164 GET Norway 6.29ms from Oslo, NO
54.173.165.165 AS14618 Amazon.com, Inc. 0.22ms from Reston, US
203.54.179.181 AS1221 Telstra Limited 0.66ms from Sydney, AU
54.203.180.245 AS16509 Amazon.com, Inc. 0.14ms from Boardman, US
62.173.96.101 AS8426 ClaraNET LTD 1.03ms from London, GB
109.92.15.101 AS8400 TELEKOM SRBIJA a.d. 1.76ms from Belgrade, RS
87.227.59.229 AS1257 Tele2 Sverige AB 1.19ms from Goeteborg, SE

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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