202.203.176.0/20

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 202.203.0.0/16
Registry APNIC
ID CDR-CERNET

WHOIS Details

inetnum:        202.202.0.0 - 202.203.255.255
netname:        CDR-CERNET
descr:          China Education and Research Network
descr:          Chengdu Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ASSIGNED NON-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:  2021-03-24T13:05:10Z
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 202.203.176.0/20

Range ASN Company Num of IPs
202.203.0.0/16 AS4538 China Education and Research Network 65,536
202.203.0.0/16 AS138378 China Education and Research Network 65,536
202.200.0.0/13 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 202.203.176.0/20

Range ASN Company Num of IPs
202.203.187.0/24 AS4538 China Education and Research Network 256
202.203.176.0/24 AS4538 China Education and Research Network 256

Nearby Ranges

BGP prefixes that overlap with 202.203.0.0/16

Range ASN Company Num of IPs
202.192.0.0/12 AS4538 China Education and Research Network 1,048,576
202.200.0.0/13 AS4538 China Education and Research Network 524,288
202.203.0.0/16 AS138378 China Education and Research Network 65,536
202.203.0.0/16 AS4538 China Education and Research Network 65,536
202.203.224.0/20 AS4538 China Education and Research Network 4,096
202.203.208.0/20 AS4538 China Education and Research Network 4,096
202.203.144.0/20 AS4538 China Education and Research Network 4,096
202.203.64.0/20 AS4538 China Education and Research Network 4,096
202.203.48.0/20 AS4538 China Education and Research Network 4,096
202.203.160.0/20 AS4538 China Education and Research Network 4,096
202.203.240.0/20 AS4538 China Education and Research Network 4,096
202.203.32.0/20 AS4538 China Education and Research Network 4,096
202.203.192.0/20 AS4538 China Education and Research Network 4,096
202.203.136.0/21 AS4538 China Education and Research Network 2,048
202.203.80.0/21 AS4538 China Education and Research Network 2,048
202.203.128.0/23 AS4538 China Education and Research Network 512
202.203.176.0/24 AS4538 China Education and Research Network 256
202.203.2.0/24 AS4538 China Education and Research Network 256
202.203.66.0/24 AS4538 China Education and Research Network 256
202.203.187.0/24 AS4538 China Education and Research Network 256
202.203.112.0/24 AS4538 China Education and Research Network 256
202.203.160.0/24 AS4538 China Education and Research Network 256
202.203.132.0/24 AS4538 China Education and Research Network 256
202.203.144.0/24 AS4538 China Education and Research Network 256
202.203.16.0/24 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

Pingable IPs

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

IP Address ASN Details
202.203.184.76 AS4538 China Education and Research Network Center 18.34ms from Chengdu, CN
202.203.187.39 AS4538 China Education and Research Network Center 19.20ms from Chengdu, CN
202.203.182.19 AS4538 China Education and Research Network Center 20.56ms from Chengdu, CN
202.203.179.92 AS4538 China Education and Research Network Center 18.34ms 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
171.231.170.244 AS7552 Viettel Group 13.08ms from Ho Chi Minh City, VN
96.30.30.20 AS32244 Liquid Web, L.L.C 0.20ms from Lansing, US
15.160.9.212 AS16509 Amazon.com, Inc. 0.11ms from Milan, IT
32.216.155.148 AS46690 Southern New England Telephone Company and SNET America, Inc. 3.74ms from Secaucus, US
32.221.8.100 AS46690 Southern New England Telephone Company and SNET America, Inc. 3.75ms from Secaucus, US
65.60.137.244 AS11776 Breezeline 14.35ms from Chicago, US
91.47.233.20 AS3320 Deutsche Telekom AG 2.61ms from Frankfurt am Main, DE
123.30.128.100 AS7643 Vietnam Posts and Telecommunications (VNPT) 0.24ms from Ho Chi Minh City, VN
2.143.79.212 AS3352 TELEFONICA DE ESPANA S.A.U. 10.59ms from Madrid, ES
178.235.82.116 AS29314 VECTRA S.A. 15.69ms from Poznan, PL
218.239.118.116 AS9318 SK Broadband Co Ltd 7.86ms from Seoul, KR
69.255.27.20 AS7922 Comcast Cable Communications, LLC 5.78ms from Ashburn, US
195.230.102.4 AS41372 VELTI SA 1.32ms from Athens, GR
34.212.68.132 AS16509 Amazon.com, Inc. 0.17ms from Boardman, US
34.69.153.20 AS396982 Google LLC 0.11ms from Council Bluffs, US
12.203.62.244 AS7018 AT&T Enterprises, LLC 2.92ms from Santa Clara, US
62.45.156.68 AS15435 DELTA Fiber Nederland B.V. 2.15ms from Amsterdam, NL
24.60.82.180 AS7922 Comcast Cable Communications, LLC 9.59ms from Boston, US
187.56.27.196 AS27699 TELEFÔNICA BRASIL S.A 9.16ms from Osasco, BR
63.195.126.132 AS7018 AT&T Enterprises, LLC 1.67ms from San Jose, US
211.215.131.164 AS9318 SK Broadband Co Ltd 1.50ms from Seoul, KR
85.122.225.164 AS212238 Datacamp Limited 0.08ms from Zuerich, CH
187.113.201.100 AS18881 TELEFÔNICA BRASIL S.A 12.15ms from Belo Horizonte, BR
156.212.28.20 AS8452 TE-AS 7.73ms from Cairo, EG
18.190.96.212 AS16509 Amazon.com, Inc. 0.11ms from Columbus, 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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