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:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        http://www.ccert.edu.cn
remarks:        [email protected] was validated on 2025-08-15
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-11-18T00:26:28Z
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:         [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
nic-hdl:        AC1685-AP
remarks:        Generated from irt object IRT-CERNET-AP
remarks:        [email protected] was validated on 2025-08-15
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-15T09:38:28Z
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:         [email protected]
remarks:        [email protected]
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

Nearby Ranges

BGP prefixes that overlap with 222.199.0.0/16

Range	ASN	Company	Num of IPs
222.199.0.0/16	AS4538	China Education and Research Network	65,536

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
222.199.132.234	hexiezhilu.com	1

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

Read more

Pingable IPs

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

IP Address	ASN	Details
222.199.136.71	AS4538 China Education and Research Network Center	`3.69ms` 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
173.79.237.20	AS701 Verizon Business	`2.48ms` from Ashburn, US
122.58.97.132	AS4771 Spark New Zealand Trading Ltd.	`13.77ms` from Auckland, NZ
213.214.57.100	AS6848 Telenet BV	`1.73ms` from Brussels, BE
170.210.184.20	AS4270 Red de Interconexion Universitaria	`9.86ms` from Buenos Aires, AR
34.249.205.116	AS16509 Amazon.com, Inc.	`0.13ms` from Dublin, IE
93.133.113.100	AS6805 Telefonica Germany GmbH & Co.OHG	`4.26ms` from Duesseldorf, DE
18.194.205.52	AS16509 Amazon.com, Inc.	`0.18ms` from Frankfurt am Main, DE
103.187.70.4	AS13631 CITADEL ENTERPRISE AMERICAS LLC	`1.13ms` from Hong Kong, HK
86.166.222.20	AS2856 British Telecommunications PLC	`2.53ms` from London, GB
155.247.80.52	AS3778 Temple University	`4.02ms` from New York City, US
177.196.55.36	AS26599 TELEFÔNICA BRASIL S.A	`2.81ms` from Osasco, BR
87.98.219.20	AS16276 OVH SAS	`0.10ms` from Roubaix, FR
219.143.134.148	AS4847 China Networks Inter-Exchange	`3.32ms` from Tianjin, CN
52.80.71.116	AS55960 Beijing Guanghuan Xinwang Digital	`3.32ms` from Beijing, CN
102.117.205.180	AS23889 Mauritius Telecom Ltd	`4.34ms` from Ebene, MU
46.20.249.4	AS25091 IP-Max SA	`0.73ms` from Geneve, CH
139.199.162.244	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.98ms` from Guangzhou, CN
196.36.167.20	AS3741 Dimension Data	`0.48ms` from Johannesburg, ZA
104.241.202.52	AS54058 Rakuten Inc	`5.63ms` from Los Angeles, US
60.42.81.196	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.95ms` from Osaka, JP
81.255.235.68	AS3215 Orange S.A.	`2.78ms` from Paris, FR
40.133.122.244	AS7029 Windstream Communications LLC	`0.37ms` from San Jose, US
150.147.0.212	AS2527 Sony Network Communications Inc.	`15.91ms` from Tokyo, JP
207.112.10.100	AS29988 Rogers Communications Canada Inc.	`0.72ms` from Toronto, CA
139.171.182.132	AS7029 Windstream Communications LLC	`0.68ms` from Ashburn, US

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f4 -m21 222.199.135.98

traceroute to 222.199.135.98 (222.199.135.98): 21 hops max, 52 byte packets

4 [] 15.230.139.22 1.559 ms

5 *

6 *

7 *

8 [AS6453] 64.86.197.113 11.964 ms

9 *

10 *

11 [AS6453] 64.86.252.33 169.079 ms

12 *

13 *

14 [AS6453] 180.87.162.76 170.629 ms

15 [AS6453] 180.87.146.201 169.209 ms

16 *

17 [AS174] 38.150.75.1 163.429 ms

18 [AS4538] 101.4.114.181 205.6 ms

19 *

20 *

21 *

Measurement taken from

IPinfo ProbeNet in Las Vegas, US

On December 14th 2025

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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