219.231.0.0/20

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Registry	APNIC
ID	CERNET-CN

WHOIS Details

inetnum:        219.230.0.0 - 219.231.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Nanjing Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
remarks:        confederation
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:27Z
source:         APNIC

irt:            IRT-CERNET-AP
address:        Network Center,
address:        FIT-3-220, 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:        abuse@cernet.edu.cn was validated on 2026-03-05
mnt-by:         MAINT-CERNET-AP
last-modified:  2026-03-05T06:39:56Z
source:         APNIC

role:           ABUSE CERNETAP
country:        ZZ
address:        Network Center,
address:        FIT-3-220, 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 2026-03-05
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2026-03-05T06:40:20Z
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

Nearby Ranges

BGP prefixes that overlap with 219.231.0.0/16

No nearby ranges found.

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

Read more

Pingable IPs

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

IP Address	ASN	Details
219.231.0.101	AS4538 China Education and Research Network Center	`12.47ms` from Shanghai, CN
219.231.15.51	AS4538 China Education and Research Network Center	`12.96ms` from Shanghai, CN
219.231.7.28	AS4538 China Education and Research Network Center	`12.76ms` from Shanghai, CN
219.231.8.39	AS4538 China Education and Research Network Center	`13.62ms` from Shanghai, 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
115.138.20.212	AS17858 LG POWERCOMM	`2.12ms` from Incheon, KR
18.100.217.100	AS16509 Amazon.com, Inc.	`5.60ms` from Madrid, ES
87.127.227.164	AS8468 ENTANET International Limited	`5.05ms` from Manchester, GB
54.152.187.132	AS14618 Amazon.com, Inc.	`0.24ms` from Reston, US
174.127.119.20	AS13213 THG HOSTING LIMITED	`0.82ms` from Salt Lake City, US
201.124.165.20	AS8151 UNINET	`3.94ms` from Santiago de Queretaro, MX
27.235.52.36	AS4766 Korea Telecom	`1.48ms` from Seoul, KR
36.237.184.228	AS3462 Data Communication Business Group	`4.32ms` from Taichung, TW
206.147.190.212	AS40160 Inteliquent, inc.	`0.78ms` from Chicago, US
38.87.169.36	AS400302 PiKNiK & Company Inc.	`0.17ms` from Houston, US
59.12.222.132	AS4766 Korea Telecom	`1.60ms` from Incheon, KR
81.157.216.196	AS2856 British Telecommunications PLC	`5.88ms` from London, GB
68.196.13.68	AS6128 Cablevision Systems Corp.	`2.12ms` from New York City, US
15.168.237.180	AS16509 Amazon.com, Inc.	`0.28ms` from Osaka, JP
198.29.38.100	AS15191 Western Independent Networks, Inc.	`9.29ms` from Portland, US
44.214.183.84	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
177.127.112.164	AS28573 Claro NXT Telecomunicacoes Ltda	`13.92ms` from Rio de Janeiro, BR
65.113.213.4	AS394046 JELD WEN	`9.76ms` from Seattle, US
45.157.98.180	AS212238 Datacamp Limited	`0.08ms` from Stockholm, SE
1.163.76.100	AS3462 Data Communication Business Group	`1.20ms` from Taipei, TW
110.135.109.116	AS9824 JCOM Co., Ltd.	`12.70ms` from Tokyo, JP
170.52.174.4	AS16863 Home Telephone Company, Inc.	`8.49ms` from Atlanta, US
79.249.2.100	AS3320 Deutsche Telekom AG	`2.78ms` from Frankfurt am Main, DE
14.178.49.164	AS45899 VNPT Corp	`2.54ms` from Hanoi, VN
45.18.174.228	AS7018 AT&T Enterprises, LLC	`2.02ms` from Houston, 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 219.231.8.121

traceroute to 219.231.8.121 (219.231.8.121): 64 hops max, 52 byte packets

4 [AS749] 11.94.199.229 30.02 ms

5 *

6 *

7 *

8 *

9 *

10 [AS4538] 101.4.118.106 13.087 ms

11 *

12 [AS4538] 101.4.115.186 14.037 ms

13 *

14 [AS4538] 210.45.229.51 14.751 ms

15 *

16 *

17 [AS4538] 219.231.8.121 13.504 ms

Measurement taken from

IPinfo ProbeNet in Shanghai, CN

On April 25th 2026

What are IP address ranges?

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