222.28.32.0/19

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 222.28.32.0/19

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 2 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
222.28.53.189	zhazhi.org	1
222.28.46.23	nsdms.org	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

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

IP Address	ASN	Details
222.28.63.234	AS4538 China Education and Research Network Center	`3.19ms` from Beijing, CN
222.28.49.253	AS4538 China Education and Research Network Center	`3.50ms` from Beijing, CN
222.28.46.244	AS4538 China Education and Research Network Center	`3.62ms` from Beijing, CN
222.28.53.189	AS4538 China Education and Research Network Center	`3.63ms` 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
143.64.74.35	AS58593 Shanghai Blue Cloud Technology Co.,Ltd	`6.56ms` from Beijing, CN
155.2.217.67	AS212238 Datacamp Limited	`0.20ms` from Budapest, HU
93.206.131.131	AS3320 Deutsche Telekom AG	`3.68ms` from Duesseldorf, DE
72.144.111.19	AS8075 Microsoft Corporation	`0.26ms` from Frankfurt am Main, DE
183.4.48.211	AS140308 CHINATELECOM Guangdong province Zhuhai 5G network	`7.07ms` from Guangzhou, CN
206.126.43.131	AS25956 Logix	`1.71ms` from Houston, US
83.38.62.3	AS3352 TELEFONICA DE ESPANA S.A.U.	`1.55ms` from Madrid, ES
76.109.208.83	AS7922 Comcast Cable Communications, LLC	`3.77ms` from Miami, US
94.181.97.19	AS34590 JSC "ER-Telecom Holding"	`17.06ms` from Moscow, RU
15.236.1.179	AS16509 Amazon.com, Inc.	`0.12ms` from Paris, FR
52.22.149.3	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
81.200.247.243	AS41148 Zolotaya Linia JSC.	`8.99ms` from Samara, RU
211.238.254.3	AS3786 LG DACOM Corporation	`1.67ms` from Seoul, KR
119.218.154.195	AS4766 Korea Telecom	`5.38ms` from Seoul, KR
97.87.170.67	AS20115 Charter Communications LLC	`12.04ms` from St. Louis, US
180.51.15.115	AS4713 NTT DOCOMO BUSINESS,Inc.	`9.93ms` from Tokyo, JP
31.171.253.51	AS50837 CLOUDSIGMA AG	`0.57ms` from Ashburn, US
79.217.14.211	AS3320 Deutsche Telekom AG	`2.61ms` from Frankfurt am Main, DE
72.8.122.99	AS15108 Allo Communications LLC	`2.58ms` from Lincoln, US
86.143.245.227	AS2856 British Telecommunications PLC	`1.23ms` from London, GB
72.187.235.227	AS33363 Charter Communications, Inc	`5.02ms` from Orlando, US
150.220.214.67	AS11427 Charter Communications Inc	`1.78ms` from Schertz, US
210.119.43.19	AS1237 KISTI	`0.97ms` from Seoul, KR
119.196.239.227	AS4766 Korea Telecom	`1.25ms` from Seoul, KR
13.214.182.67	AS16509 Amazon.com, Inc.	`0.39ms` 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 -m12 222.28.41.235

traceroute to 222.28.41.235 (222.28.41.235): 12 hops max, 52 byte packets

1 [AS142382] 103.172.18.1 1243.064 ms

2 *

3 [AS38158] 121.100.7.1 29.561 ms

4 [] 123.255.91.118 64.432 ms

5 *

6 *

7 *

8 [AS4538] 101.4.112.98 98.606 ms

9 [AS4538] 101.4.113.229 105.167 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Denpasar, ID

On January 18th 2026

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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