202.200.240.0/20

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	202.200.0.0/13
Registry	APNIC
ID	XAR-CERNET

WHOIS Details

inetnum:        202.200.0.0 - 202.201.255.255
netname:        XAR-CERNET
descr:          China Education and Research Network
descr:          Xi'an 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:  2021-03-24T13:04:50Z
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 202.200.240.0/20

Range	ASN	Company	Num of IPs
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 202.200.240.0/20

Range	ASN	Company	Num of IPs
202.200.255.0/24	AS4538	China Education and Research Network	256

Nearby Ranges

BGP prefixes that overlap with 202.200.0.0/16

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
202.200.80.0/20	AS4538	China Education and Research Network	4,096
202.200.32.0/20	AS4538	China Education and Research Network	4,096
202.200.144.0/20	AS4538	China Education and Research Network	4,096
202.200.96.0/20	AS4538	China Education and Research Network	4,096
202.200.112.0/20	AS4538	China Education and Research Network	4,096
202.200.224.0/20	AS4538	China Education and Research Network	4,096
202.200.64.0/20	AS4538	China Education and Research Network	4,096
202.200.176.0/20	AS4538	China Education and Research Network	4,096
202.200.48.0/20	AS4538	China Education and Research Network	4,096
202.200.208.0/20	AS4538	China Education and Research Network	4,096
202.200.168.0/21	AS4538	China Education and Research Network	2,048
202.200.16.0/21	AS4538	China Education and Research Network	2,048
202.200.200.0/21	AS4538	China Education and Research Network	2,048
202.200.0.0/21	AS4538	China Education and Research Network	2,048
202.200.8.0/22	AS4538	China Education and Research Network	1,024
202.200.12.0/22	AS4538	China Education and Research Network	1,024
202.200.140.0/23	AS4538	China Education and Research Network	512
202.200.64.0/24	AS4538	China Education and Research Network	256
202.200.31.0/24	AS4538	China Education and Research Network	256
202.200.41.0/24	AS4538	China Education and Research Network	256
202.200.29.0/24	AS4538	China Education and Research Network	256
202.200.28.0/24	AS4538	China Education and Research Network	256
202.200.200.0/24	AS4538	China Education and Research Network	256
202.200.81.0/24	AS4538	China Education and Research Network	256
202.200.32.0/24	AS4538	China Education and Research Network	256
202.200.37.0/24	AS4538	China Education and Research Network	256
202.200.96.0/24	AS4538	China Education and Research Network	256
202.200.42.0/24	AS4538	China Education and Research Network	256
202.200.35.0/24	AS4538	China Education and Research Network	256
202.200.36.0/24	AS4538	China Education and Research Network	256
202.200.94.0/24	AS4538	China Education and Research Network	256
202.200.80.0/24	AS4538	China Education and Research Network	256
202.200.43.0/24	AS4538	China Education and Research Network	256
202.200.48.0/24	AS4538	China Education and Research Network	256
202.200.255.0/24	AS4538	China Education and Research Network	256
202.200.112.0/24	AS4538	China Education and Research Network	256
202.200.38.0/24	AS4538	China Education and Research Network	256
202.200.34.0/24	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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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
156.229.245.132	AS62240 Clouvider	0.20ms from Amsterdam, NL
45.32.212.148	AS20473 The Constant Company, LLC	0.20ms from Atlanta, US
195.227.244.36	AS8469 CANCOM Managed Services GmbH	5.29ms from Berlin, DE
100.21.111.20	AS16509 Amazon.com, Inc.	0.15ms from Boardman, US
156.223.62.196	AS8452 TE-AS	5.20ms from Cairo, EG
99.189.178.36	AS7018 AT&T Enterprises, LLC	3.02ms from Houston, US
117.239.112.244	AS9829 National Internet Backbone	6.75ms from Kolkata, IN
95.179.38.100	AS12389 PJSC Rostelecom	8.32ms from Moscow, RU
104.215.139.4	AS8075 Microsoft Corporation	0.58ms from Singapore, SG
108.157.225.212	AS16509 Amazon.com, Inc.	0.20ms from Stockholm, SE
114.43.139.36	AS3462 Data Communication Business Group	0.97ms from Taipei, TW
42.235.47.228	AS4837 CHINA UNICOM China169 Backbone	5.11ms from Zhengzhou, CN
45.9.241.52	AS209031 RACOMUR DIFUSION,S.L.	8.22ms from Madrid, ES
101.143.100.228	AS17511 OPTAGE Inc.	2.36ms from Osaka, JP
133.163.133.148	AS2510 FUJITSU LIMITED	3.39ms from Osaka, JP
180.15.212.100	AS4713 NTT Communications Corporation	5.10ms from Osaka, JP
213.140.55.164	AS12956 TELXIUS Cable	0.34ms from Paris, FR
80.119.0.228	AS15557 Societe Francaise Du Radiotelephone - SFR SA	1.44ms from Paris, FR
52.121.43.196	AS8075 Microsoft Corporation	0.87ms from Sao Paulo, BR
221.144.17.20	AS4766 Korea Telecom	5.10ms from Seoul, KR
44.251.153.84	AS16509 Amazon.com, Inc.	0.31ms from Boardman, US
5.204.198.180	AS213155 Yettel Hungary Ltd.	14.34ms from Budapest, HU
76.112.147.212	AS7922 Comcast Cable Communications, LLC	8.14ms from Detroit, US
195.147.60.20	AS5413 Wavenet Limited	8.42ms from London, GB
195.213.39.20	AS6871 Plusnet	11.76ms from London, GB

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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