222.28.64.0/20

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:         [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 222.28.64.0/20

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 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

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

IP Address	ASN	Details
222.28.70.244	AS4538 China Education and Research Network Center	`3.97ms` 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
173.185.81.100	AS7029 Windstream Communications LLC	`6.82ms` from Atlanta, US
85.98.29.52	AS9121 Turk Telekomunikasyon Anonim Sirketi	`12.02ms` from Bursa, TR
106.255.182.196	AS3786 LG DACOM Corporation	`2.76ms` from Seoul, KR
183.118.37.116	AS4766 Korea Telecom	`6.89ms` from Seoul, KR
192.95.46.196	AS16276 OVH SAS	`0.07ms` from Beauharnois, CA
107.207.255.20	AS7018 AT&T Enterprises, LLC	`3.80ms` from Chicago, US
63.178.130.68	AS16509 Amazon.com, Inc.	`0.23ms` from Frankfurt am Main, DE
217.254.122.116	AS3320 Deutsche Telekom AG	`5.39ms` from Frankfurt am Main, DE
68.100.113.148	AS22773 Cox Communications Inc.	`4.39ms` from Herndon, US
128.34.240.52	AS22 Navy Network Information Center (NNIC)	`1.81ms` from Los Angeles, US
38.159.230.52	AS271930 XTERCOM, S.R.L.	`17.12ms` from Miami, US
18.230.117.244	AS16509 Amazon.com, Inc.	`0.16ms` from Osasco, BR
1.159.140.84	AS1221 Telstra Limited	`9.17ms` from Perth, AU
192.22.101.244	AS31898 Oracle Corporation	`0.50ms` from Seattle, US
182.231.4.212	AS17858 LG POWERCOMM	`6.48ms` from Seoul, KR
76.100.122.116	AS7922 Comcast Cable Communications, LLC	`6.49ms` from Ashburn, US
181.126.77.20	AS23201 Telecel S.A.	`7.81ms` from Asuncion, PY
66.168.183.212	AS20115 Charter Communications LLC	`4.74ms` from Atlanta, US
58.161.91.244	AS1221 Telstra Limited	`13.06ms` from Brisbane, AU
206.40.177.116	AS19856 Brazosport College	`6.31ms` from Houston, US
115.134.123.212	AS4788 TM TECHNOLOGY SERVICES SDN. BHD.	`2.10ms` from Kuala Lumpur, MY
2.99.42.116	AS13285 TalkTalk Communications Limited	`5.19ms` from London, GB
1.98.170.100	AS4766 Korea Telecom	`2.11ms` from Seoul, KR
60.79.246.84	AS17676 SoftBank Corp.	`2.98ms` from Tokyo, JP
153.218.165.228	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.26ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -f3 -m13 222.28.66.114

traceroute to 222.28.66.114 (222.28.66.114): 13 hops max, 52 byte packets

3 [AS1299] 62.115.146.16 2.198 ms

4 [AS1299] 62.115.117.56 1.736 ms

5 [AS1299] 62.115.116.238 4.555 ms

6 [AS1299] 62.115.138.227 16.33 ms

7 [AS1299] 62.115.141.219 155.624 ms

8 *

9 [AS1299] 80.239.130.173 191.295 ms

10 [AS4538] 101.4.114.181 221.547 ms

11 *

12 *

13 *

Measurement taken from

IPinfo ProbeNet in Brussels, BE

On December 20th 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.

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