218.199.40.0/22

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	218.199.0.0/16
Registry	APNIC
ID	CERNET-CN

WHOIS Details

inetnum:        218.196.0.0 - 218.199.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Wuhan Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
remarks:        confederation
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-10-20T00:56:39Z
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 218.199.40.0/22

Range	ASN	Company	Num of IPs
218.199.0.0/16	AS24358	China Education and Research Network	65,536
218.199.0.0/16	AS4538	China Education and Research Network	65,536
218.192.0.0/13	AS4538	China Education and Research Network	524,288

Nearby Ranges

BGP prefixes that overlap with 218.199.0.0/16

Range	ASN	Company	Num of IPs
218.192.0.0/13	AS4538	China Education and Research Network	524,288
218.199.0.0/16	AS4538	China Education and Research Network	65,536
218.199.0.0/16	AS24358	China Education and Research Network	65,536
218.199.96.0/20	AS4538	China Education and Research Network	4,096
218.199.64.0/20	AS4538	China Education and Research Network	4,096
218.199.144.0/20	AS4538	China Education and Research Network	4,096
218.199.16.0/20	AS4538	China Education and Research Network	4,096
218.199.48.0/20	AS4538	China Education and Research Network	4,096
218.199.224.0/20	AS4538	China Education and Research Network	4,096
218.199.128.0/20	AS4538	China Education and Research Network	4,096
218.199.160.0/20	AS4538	China Education and Research Network	4,096
218.199.192.0/20	AS4538	China Education and Research Network	4,096
218.199.176.0/20	AS4538	China Education and Research Network	4,096
218.199.80.0/20	AS4538	China Education and Research Network	4,096
218.199.112.0/20	AS4538	China Education and Research Network	4,096
218.199.0.0/21	AS4538	China Education and Research Network	2,048
218.199.8.0/21	AS4538	China Education and Research Network	2,048
218.199.32.0/21	AS4538	China Education and Research Network	2,048
218.199.208.0/22	AS4538	China Education and Research Network	1,024
218.199.212.0/22	AS4538	China Education and Research Network	1,024
218.199.44.0/22	AS4538	China Education and Research Network	1,024
218.199.210.0/23	AS4538	China Education and Research Network	512
218.199.181.0/24	AS4538	China Education and Research Network	256
218.199.88.0/24	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

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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
76.239.130.214	AS7018 AT&T Enterprises, LLC	1.89ms from Atlanta, US
54.244.213.38	AS16509 Amazon.com, Inc.	0.17ms from Boardman, US
95.105.188.86	AS15962 Orange Slovensko a.s.	3.17ms from Bratislava, SK
134.96.64.230	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	5.68ms from Frankfurt am Main, DE
220.241.130.38	AS4515 PCCW IMS Ltd (PCCW Business Internet Access)	1.35ms from Hong Kong, HK
217.34.120.198	AS2856 British Telecommunications PLC	4.44ms from London, GB
34.89.66.70	AS396982 Google LLC	0.10ms from London, GB
217.25.81.6	AS197960 LIMITED LIABILITY COMPANY "INTERNET SERVICE PROVIDER "MEGA"	15.26ms from Moscow, RU
78.114.121.86	AS15557 Societe Francaise Du Radiotelephone - SFR SA	13.05ms from Paris, FR
27.215.116.246	AS4837 CHINA UNICOM China169 Backbone	6.11ms from Qingdao, CN
3.220.99.102	AS14618 Amazon.com, Inc.	0.13ms from Reston, US
104.4.87.134	AS7018 AT&T Enterprises, LLC	2.54ms from San Antonio, US
45.47.195.182	AS11351 Charter Communications Inc	11.03ms from Secaucus, US
221.139.159.70	AS9318 SK Broadband Co Ltd	5.49ms from Seoul, KR
52.193.83.86	AS16509 Amazon.com, Inc.	0.15ms from Tokyo, JP
210.166.119.214	AS4693 CSK-IT MANAGEMENT CORPORATION	1.47ms from Tokyo, JP
34.223.137.70	AS16509 Amazon.com, Inc.	0.13ms from Boardman, US
172.245.224.198	AS36352 HostPapa	0.42ms from Dallas, US
50.242.134.198	AS7922 Comcast Cable Communications, LLC	6.13ms from Denver, US
185.232.22.70	AS9009 M247 Europe SRL	0.40ms from Frankfurt am Main, DE
185.233.39.182	AS200000 Hosting Ukraine LTD	0.43ms from Kyiv, UA
190.43.140.86	AS6147 Telefonica del Peru S.A.A.	1.09ms from Lima, PE
78.141.6.54	AS5413 Wavenet Limited	5.44ms from London, GB
84.45.155.70	AS8468 ENTANET International Limited	8.88ms from London, GB
72.220.29.118	AS22773 Cox Communications Inc.	7.11ms from Los Angeles, 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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