219.222.112.0/20

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:        219.222.0.0 - 219.223.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Guangzhou Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
remarks:        confederation
remarks:        GZR-CERNET
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-10-20T00:56:52Z
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 219.222.0.0/16

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
219.222.126.12	jyc.edu.cn	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
219.222.112.62	AS4538 China Education and Research Network Center	`12.51ms` from Guangzhou, CN
219.222.115.4	AS4538 China Education and Research Network Center	`12.72ms` from Guangzhou, CN
219.222.126.71	AS4538 China Education and Research Network Center	`12.59ms` from Guangzhou, 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
4.157.38.244	AS8075 Microsoft Corporation	`0.57ms` from Ashburn, US
181.139.165.148	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`8.03ms` from Bogota, CO
89.181.170.228	AS2860 NOS COMUNICACOES, S.A.	`2.41ms` from Braga, PT
109.166.244.4	AS201387 Luxoft Professional Romania S.R.L.	`0.76ms` from Bucharest, RO
24.192.7.100	AS12083 WideOpenWest Finance LLC	`11.58ms` from Chicago, US
172.239.53.164	AS63949 Akamai Connected Cloud	`0.36ms` from Chicago, US
66.19.181.212	AS7029 Windstream Communications LLC	`0.50ms` from Chicago, US
93.127.249.84	AS62336 PURtel.com GmbH	`2.12ms` from Frankfurt am Main, DE
134.214.141.244	AS2060 Renater	`3.06ms` from Geneve, CH
183.249.230.116	AS56041 China Mobile communications corporation	`6.32ms` from Hangzhou, CN
124.58.86.100	AS17858 LG POWERCOMM	`2.00ms` from Incheon, KR
74.207.148.164	AS14543 SRT Communications, Inc.	`16.69ms` from Minneapolis, US
121.237.245.100	AS4134 CHINANET-BACKBONE	`4.58ms` from Nanjing, CN
171.105.206.36	AS4134 CHINANET-BACKBONE	`3.05ms` from Nanning, CN
116.235.78.4	AS4812 China Telecom (Group)	`2.84ms` from Shanghai, CN
111.221.92.4	AS8075 Microsoft Corporation	`1.47ms` from Singapore, SG
5.185.30.68	AS5617 Orange Polska Spolka Akcyjna	`14.09ms` from Warsaw, PL
93.136.250.4	AS5391 Hrvatski Telekom d.d.	`10.98ms` from Zagreb, HR
113.212.74.4	AS49033 Critical Core BV	`0.17ms` from Amsterdam, NL
52.37.70.4	AS16509 Amazon.com, Inc.	`0.15ms` from Boardman, US
74.139.212.228	AS10796 Charter Communications Inc	`8.98ms` from Columbus, US
192.238.136.132	AS138995 Antbox Networks Limited	`1.57ms` from Hong Kong, HK
173.11.190.84	AS7922 Comcast Cable Communications, LLC	`7.31ms` from Houston, US
14.85.103.36	AS4766 Korea Telecom	`4.18ms` from Incheon, KR
51.145.106.116	AS8075 Microsoft Corporation	`0.23ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -f3 -m11 219.222.115.74

traceroute to 219.222.115.74 (219.222.115.74): 11 hops max, 52 byte packets

3 [AS3257] 213.200.127.242 13.303 ms

4 [AS3257] 154.14.153.118 21.376 ms

5 *

6 [] 69.194.166.38 210.241 ms

7 *

8 [AS4538] 101.4.114.181 293.188 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in London, GB

On March 20th 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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