222.199.128.0/20

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	222.199.0.0/16
Registry	APNIC
ID	BJR-CERNET

WHOIS Details

inetnum:        222.199.0.0 - 222.199.255.255
netname:        BJR-CERNET
descr:          China Education and Research Network
descr:          Beijing Regional Network
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:  2020-09-03T09:16:05Z
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 222.199.128.0/20

Range	ASN	Company	Num of IPs
222.199.0.0/16	AS4538	China Education and Research Network	65,536
222.192.0.0/12	AS4538	China Education and Research Network	1,048,576

Nearby Ranges

BGP prefixes that overlap with 222.199.0.0/16

Range	ASN	Company	Num of IPs
222.192.0.0/12	AS4538	China Education and Research Network	1,048,576
222.199.0.0/16	AS4538	China Education and Research Network	65,536
222.199.224.0/19	AS4538	China Education and Research Network	8,192
222.199.192.0/19	AS4538	China Education and Research Network	8,192
222.199.64.0/20	AS4538	China Education and Research Network	4,096
222.199.176.0/20	AS4538	China Education and Research Network	4,096
222.199.112.0/20	AS4538	China Education and Research Network	4,096
222.199.184.0/22	AS4538	China Education and Research Network	1,024
222.199.96.0/22	AS4538	China Education and Research Network	1,024
222.199.12.0/22	AS4538	China Education and Research Network	1,024
222.199.32.0/22	AS4538	China Education and Research Network	1,024
222.199.88.0/22	AS4538	China Education and Research Network	1,024
222.199.0.0/22	AS4538	China Education and Research Network	1,024
222.199.24.0/22	AS4538	China Education and Research Network	1,024
222.199.36.0/22	AS4538	China Education and Research Network	1,024
222.199.28.0/22	AS4538	China Education and Research Network	1,024
222.199.160.0/22	AS4538	China Education and Research Network	1,024
222.199.108.0/22	AS4538	China Education and Research Network	1,024
222.199.92.0/22	AS4538	China Education and Research Network	1,024
222.199.6.0/23	AS4538	China Education and Research Network	512
222.199.47.0/24	AS4538	China Education and Research Network	256
222.199.4.0/24	AS4538	China Education and Research Network	256
222.199.48.0/24	AS4538	China Education and Research Network	256
222.199.100.0/24	AS4538	China Education and Research Network	256
222.199.42.0/24	AS4538	China Education and Research Network	256
222.199.5.0/24	AS4538	China Education and Research Network	256
222.199.20.0/24	AS4538	China Education and Research Network	256
222.199.43.0/24	AS4538	China Education and Research Network	256
222.199.23.0/24	AS4538	China Education and Research Network	256
222.199.12.0/24	AS4538	China Education and Research Network	256
222.199.22.0/24	AS4538	China Education and Research Network	256
222.199.21.0/24	AS4538	China Education and Research Network	256
222.199.170.0/24	AS4538	China Education and Research Network	256
222.199.40.0/24	AS4538	China Education and Research Network	256
222.199.52.0/24	AS4538	China Education and Research Network	256
222.199.181.0/24	AS4538	China Education and Research Network	256
222.199.41.0/24	AS4538	China Education and Research Network	256
222.199.44.0/24	AS4538	China Education and Research Network	256
222.199.165.0/24	AS4538	China Education and Research Network	256
222.199.64.0/24	AS4538	China Education and Research Network	256
222.199.164.0/24	AS4538	China Education and Research Network	256
222.199.49.0/24	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

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
222.199.136.45	AS4538 China Education and Research Network Center	3.39ms 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
40.129.53.52	AS7029 Windstream Communications LLC	0.62ms from Ashburn, US
123.180.165.116	AS4134 CHINANET-BACKBONE	18.08ms from Beijing, CN
162.14.194.244	AS45090 Shenzhen Tencent Computer Systems Company Limited	0.23ms from Chongqing, CN
192.151.253.228	AS132839 POWER LINE DATACENTER	1.49ms from Hong Kong, HK
99.165.33.132	AS7018 AT&T Enterprises, LLC	10.84ms from Los Angeles, US
74.67.162.36	AS11351 Charter Communications Inc	13.44ms from New York City, US
72.28.7.52	AS14928 Adams CATV, Inc	12.48ms from New York City, US
13.95.26.20	AS8075 Microsoft Corporation	0.27ms from Amsterdam, NL
20.82.70.212	AS8075 Microsoft Corporation	0.21ms from Amsterdam, NL
3.105.13.148	AS16509 Amazon.com, Inc.	0.16ms from Sydney, AU
85.225.146.68	AS2119 Telenor Norge AS	2.23ms from Goeteborg, SE
15.229.1.164	AS16509 Amazon.com, Inc.	0.86ms from Osasco, BR
84.236.53.196	AS20845 DIGI Tavkozlesi es Szolgaltato Kft.	0.68ms from Budapest, HU
135.169.65.20	AS18676 Avaya Inc.	9.44ms from Chicago, US
98.168.114.4	AS63182 RapidScale, Inc	0.23ms from Chicago, US
73.2.189.180	AS7922 Comcast Cable Communications, LLC	14.69ms from Dallas, US
173.237.23.116	AS7979 Servers.com, Inc.	0.28ms from Dallas, US
177.107.104.196	AS262323 STAR CONECT TELECOM LTDA	11.79ms from Joao Pessoa, BR
82.144.107.116	AS16168 GENETSIS PARTNERS SL	0.19ms from Madrid, ES
88.17.106.148	AS3352 TELEFONICA DE ESPANA S.A.U.	6.01ms from Madrid, ES
185.62.32.20	AS201852 Bluindaco S.R.L.	5.43ms from Milan, IT
90.27.29.68	AS3215 Orange S.A.	7.65ms from Paris, FR
123.141.149.116	AS3786 LG DACOM Corporation	6.03ms from Seoul, KR
89.154.84.132	AS2860 NOS COMUNICACOES, S.A.	7.14ms from Braga, PT
98.193.42.36	AS7922 Comcast Cable Communications, LLC	6.20ms from Chicago, 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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