222.28.112.0/20

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	222.28.0.0/14
Registry	APNIC
ID	BJR-CERNET

WHOIS Details

inetnum:        222.28.0.0 - 222.31.255.255
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:  2020-09-03T09:16:23Z
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 2025-08-15
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:         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 2025-08-15
abuse-mailbox:  abuse@cernet.edu.cn
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:         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 222.28.112.0/20

Range	ASN	Company	Num of IPs
222.28.0.0/14	AS4538	China Education and Research Network	262,144

Nearby Ranges

BGP prefixes that overlap with 222.28.0.0/16

Range	ASN	Company	Num of IPs
222.28.0.0/14	AS4538	China Education and Research Network	262,144

Hosted domains

There are no domains currently hosted on this ASN.

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

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

IP Address	ASN	Details
222.28.117.135	AS4538 China Education and Research Network Center	`3.06ms` 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
163.194.60.100	AS395610 Nexstar Broadcasting Inc.	`18.22ms` from Ashburn, US
81.241.105.100	AS5432 Proximus NV	`3.72ms` from Brussels, BE
86.191.225.100	AS2856 British Telecommunications PLC	`4.18ms` from London, GB
81.37.102.212	AS3352 TELEFONICA DE ESPANA S.A.U.	`12.23ms` from Madrid, ES
97.164.147.164	AS6167 Verizon Business	`8.60ms` from Miami, US
119.231.188.4	AS17511 OPTAGE Inc.	`1.75ms` from Osaka, JP
191.41.40.180	AS26615 TIM S/A	`1.20ms` from Rio de Janeiro, BR
219.231.25.132	AS4538 China Education and Research Network Center	`14.52ms` from Shanghai, CN
192.72.6.52	AS4780 Digital United Inc.	`16.91ms` from Taipei, TW
73.87.67.100	AS7922 Comcast Cable Communications, LLC	`5.82ms` from Ashburn, US
119.54.70.84	AS4837 CHINA UNICOM China169 Backbone	`2.45ms` from Changchun, CN
192.105.191.4	AS396905 HomeWorks Connect	`0.65ms` from Chicago, US
70.171.93.68	AS22773 Cox Communications Inc.	`15.83ms` from Dallas, US
52.176.140.244	AS8075 Microsoft Corporation	`0.28ms` from Des Moines, US
79.232.200.36	AS3320 Deutsche Telekom AG	`5.10ms` from Duesseldorf, DE
217.84.18.148	AS3320 Deutsche Telekom AG	`6.32ms` from Frankfurt am Main, DE
35.178.30.4	AS16509 Amazon.com, Inc.	`0.18ms` from London, GB
2.218.95.52	AS5607 Sky UK Limited	`0.91ms` from London, GB
90.65.220.52	AS3215 Orange S.A.	`7.08ms` from Marseille, FR
176.133.114.164	AS5410 Bouygues Telecom SA	`9.11ms` from Marseille, FR
167.59.210.196	AS6057 Administracion Nacional de Telecomunicaciones	`1.76ms` from Montevideo, UY
85.166.169.52	AS2119 Telenor Norge AS	`2.23ms` from Oslo, NO
98.66.207.116	AS8075 Microsoft Corporation	`0.34ms` from Paris, FR
119.209.155.244	AS4766 Korea Telecom	`1.72ms` from Seoul, KR
140.245.35.132	AS31898 Oracle Corporation	`0.15ms` from Singapore, SG

Traceroute

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

traceroute -a -n -q1 -f4 -m15 222.28.127.44

traceroute to 222.28.127.44 (222.28.127.44): 15 hops max, 52 byte packets

4 [AS6939] 184.105.65.73 20.358 ms

5 [AS6939] 184.104.195.189 37.32 ms

6 *

7 *

8 *

9 [AS4538] 101.4.114.181 282.965 ms

10 *

11 *

12 [AS4538] 101.4.116.126 284.793 ms

13 *

14 *

15 *

Measurement taken from

IPinfo ProbeNet in Vilnius, LT

On December 28th 2025

What are IP address ranges?

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