202.115.123.0/24

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 202.115.112.0/20
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 202.115.123.0/24

Range ASN Company Num of IPs
202.115.112.0/20 AS4538 China Education and Research Network 4,096
202.115.0.0/17 AS4538 China Education and Research Network 32,768
202.114.0.0/15 AS4538 China Education and Research Network 131,072
202.112.0.0/14 AS4538 China Education and Research Network 262,144
202.112.0.0/13 AS4538 China Education and Research Network 524,288

Nearby Ranges

BGP prefixes that overlap with 202.115.0.0/16

Range ASN Company Num of IPs
202.112.0.0/13 AS4538 China Education and Research Network 524,288
202.112.0.0/14 AS4538 China Education and Research Network 262,144
202.114.0.0/15 AS4538 China Education and Research Network 131,072
202.115.0.0/17 AS4538 China Education and Research Network 32,768
202.115.32.0/19 AS24355 China Education and Research Network 8,192
202.115.32.0/19 AS4538 China Education and Research Network 8,192
202.115.0.0/19 AS4538 China Education and Research Network 8,192
202.115.0.0/19 AS24355 China Education and Research Network 8,192
202.115.96.0/20 AS4538 China Education and Research Network 4,096
202.115.112.0/20 AS4538 China Education and Research Network 4,096
202.115.192.0/20 AS4538 China Education and Research Network 4,096
202.115.80.0/20 AS4538 China Education and Research Network 4,096
202.115.176.0/20 AS4538 China Education and Research Network 4,096
202.115.64.0/20 AS4538 China Education and Research Network 4,096
202.115.64.0/20 AS24355 China Education and Research Network 4,096
202.115.144.0/20 AS4538 China Education and Research Network 4,096
202.115.160.0/20 AS4538 China Education and Research Network 4,096
202.115.128.0/20 AS4538 China Education and Research Network 4,096
202.115.240.0/22 AS4538 China Education and Research Network 1,024
202.115.252.0/22 AS4538 China Education and Research Network 1,024
202.115.203.0/24 AS4538 China Education and Research Network 256
202.115.126.0/24 AS4538 China Education and Research Network 256
202.115.130.0/24 AS4538 China Education and Research Network 256
202.115.124.0/24 AS4538 China Education and Research Network 256
202.115.145.0/24 AS4538 China Education and Research Network 256
202.115.243.0/24 AS4538 China Education and Research Network 256
202.115.241.0/24 AS4538 China Education and Research Network 256
202.115.118.0/24 AS4538 China Education and Research Network 256
202.115.122.0/24 AS4538 China Education and Research Network 256
202.115.252.0/24 AS4538 China Education and Research Network 256
202.115.159.0/24 AS4538 China Education and Research Network 256
202.115.151.0/24 AS4538 China Education and Research Network 256
202.115.131.0/24 AS4538 China Education and Research Network 256
202.115.160.0/24 AS4538 China Education and Research Network 256
202.115.127.0/24 AS4538 China Education and Research Network 256
202.115.129.0/24 AS4538 China Education and Research Network 256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Pingable IPs

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

IP Address ASN Details
202.115.123.60 AS4538 China Education and Research Network Center 37.68ms from Chengdu, 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
20.228.231.120 AS8075 Microsoft Corporation 0.43ms from Ashburn, US
20.127.189.8 AS8075 Microsoft Corporation 0.98ms from Ashburn, US
108.228.250.248 AS7018 AT&T Enterprises, LLC 4.97ms from Atlanta, US
60.253.164.232 AS17964 Beijing Dian-Xin-Tong Network Technologies Co., Ltd. 4.89ms from Beijing, CN
123.127.59.40 AS4808 China Unicom Beijing Province Network 3.41ms from Beijing, CN
117.170.157.200 AS56045 China Mobile communications corporation 11.16ms from Changsha, CN
166.142.124.72 AS6167 Verizon Business 13.23ms from Chicago, US
84.146.122.152 AS3320 Deutsche Telekom AG 8.66ms from Frankfurt am Main, DE
115.29.177.88 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 2.06ms from Hangzhou, CN
43.135.70.216 AS132203 Tencent Building, Kejizhongyi Avenue 0.50ms from Hong Kong, HK
188.60.66.120 AS3303 Swisscom (Switzerland) Ltd 0.65ms from Lausanne, CH
86.30.113.200 AS5089 Virgin Media Limited 6.43ms from London, GB
201.182.69.152 AS267502 VEM DIGITAL 19.55ms from Osasco, BR
155.248.17.24 AS6142 Oracle Corporation 1.66ms from Phoenix, US
222.132.12.8 AS4837 CHINA UNICOM China169 Backbone 5.62ms from Qingdao, CN
60.179.124.136 AS4134 CHINANET-BACKBONE 7.90ms from Shanghai, CN
111.39.73.216 AS9808 China Mobile Communications Group Co., Ltd. 12.19ms from Suzhou, CN
101.190.98.40 AS1221 Telstra Limited 2.90ms from Sydney, AU
203.220.128.248 AS7545 TPG Telecom Limited 1.31ms from Sydney, AU
60.67.124.168 AS17676 SoftBank Corp. 2.64ms from Tokyo, JP
82.192.82.168 AS60781 LeaseWeb Netherlands B.V. 0.26ms from Amsterdam, NL
84.162.245.88 AS3320 Deutsche Telekom AG 5.88ms from Berlin, DE
47.114.21.152 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 4.89ms from Hangzhou, CN
123.18.228.200 AS45899 VNPT Corp 5.84ms from Hanoi, VN
70.50.171.88 AS577 Bell Canada 4.38ms from Montreal, CA

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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