222.199.12.0/24

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	222.199.12.0/22
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 222.199.12.0/24

Range	ASN	Company	Num of IPs
222.199.12.0/22	AS4538	China Education and Research Network	1,024
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
222.199.128.0/20	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
222.199.22.0/24	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

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

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Pingable IPs

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

IP Address	ASN	Details
222.199.12.19	AS4538 China Education and Research Network Center	11.80ms 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
75.219.207.136	AS6167 Verizon Business	12.24ms from Chicago, US
93.217.212.40	AS3320 Deutsche Telekom AG	7.80ms from Frankfurt am Main, DE
206.233.157.136	AS139646 HONG KONG Megalayer Technology Co.,Limited	2.25ms from Hong Kong, HK
148.71.139.104	AS12353 Vodafone Portugal	7.10ms from Lisbon, PT
208.73.45.136	AS40170 Intermetro Communications, Inc.	0.23ms from Los Angeles, US
175.33.121.248	AS4804 Microplex PTY LTD	1.44ms from Melbourne, AU
221.7.129.200	AS4837 CHINA UNICOM China169 Backbone	2.52ms from Nanning, CN
60.94.247.136	AS17676 SoftBank Corp.	3.93ms from Osaka, JP
185.29.43.200	AS8426 ClaraNET LTD	0.95ms from Paris, FR
217.173.12.40	AS31423 Przedsiebiorstwo "PROMAX" Spolka Jawna Zofia Formanek-Okroj, Wieslaw Okroj	3.46ms from Poznan, PL
220.81.237.104	AS4766 Korea Telecom	4.41ms from Seoul, KR
204.138.80.200	AS1070 Peel Regional Police	1.08ms from Toronto, CA
211.94.131.216	AS4808 China Unicom Beijing Province Network	4.16ms from Beijing, CN
54.191.233.24	AS16509 Amazon.com, Inc.	0.10ms from Boardman, US
206.75.214.232	AS852 TELUS Communications Inc.	0.63ms from Calgary, CA
184.84.93.136	AS16625 Akamai Technologies, Inc.	0.21ms from Dallas, US
45.94.162.136	AS201341 trafficforce, UAB	0.33ms from Dallas, US
217.95.136.104	AS3320 Deutsche Telekom AG	9.14ms from Frankfurt am Main, DE
91.12.170.104	AS3320 Deutsche Telekom AG	7.25ms from Frankfurt am Main, DE
86.28.199.184	AS5089 Virgin Media Limited	10.40ms from London, GB
66.124.210.232	AS7018 AT&T Enterprises, LLC	2.26ms from Los Angeles, US
90.60.254.88	AS3215 Orange S.A.	4.27ms from Marseille, FR
117.70.19.56	AS4134 CHINANET-BACKBONE	10.97ms from Nanchang, CN
162.251.110.24	AS32338 Hostiserver Ltd	0.28ms from Phoenix, US
39.82.161.120	AS4837 CHINA UNICOM China169 Backbone	6.39ms from Qingdao, CN

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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