222.17.208.0/20

AS4538 · China Education and Research Network Center

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Summary

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

WHOIS Details

inetnum:        222.16.0.0 - 222.17.255.255
netname:        GZR-CERNET
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:  2020-09-03T09:16:14Z
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 222.17.0.0/16

No nearby ranges found.

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
222.17.208.171	AS4538 China Education and Research Network Center	`10.88ms` from Guangzhou, CN
222.17.219.215	AS4538 China Education and Research Network Center	`10.91ms` from Guangzhou, CN
222.17.212.244	AS4538 China Education and Research Network Center	`10.89ms` from Guangzhou, CN
222.17.217.238	AS4538 China Education and Research Network Center	`10.89ms` 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
57.153.160.52	AS8075 Microsoft Corporation	`0.22ms` from Amsterdam, NL
200.69.94.84	AS262186 TV AZTECA SUCURSAL COLOMBIA	`11.62ms` from Bogota, CO
130.131.179.212	AS8075 Microsoft Corporation	`0.15ms` from Des Moines, US
20.221.45.36	AS8075 Microsoft Corporation	`0.33ms` from Des Moines, US
175.178.160.164	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.90ms` from Guangzhou, CN
79.204.38.196	AS3320 Deutsche Telekom AG	`3.51ms` from Hamburg, DE
108.228.225.196	AS7018 AT&T Enterprises, LLC	`2.05ms` from Los Angeles, US
39.66.205.52	AS4837 CHINA UNICOM China169 Backbone	`6.36ms` from Qingdao, CN
185.212.120.20	AS132046 Sunbridge worldwide LTD	`0.70ms` from Taipei, TW
152.53.35.132	AS197540 netcup GmbH	`0.30ms` from Vienna, AT
190.206.226.20	AS8048 CANTV Servicios, Venezuela	`12.96ms` from Willemstad, CW
185.203.41.68	AS210602 Marbell AG	`0.59ms` from Zuerich, CH
124.65.18.100	AS4808 China Unicom Beijing Province Network	`3.16ms` from Beijing, CN
212.96.187.212	AS12570 O2 Czech Republic, a.s.	`8.85ms` from Brno, CZ
91.13.198.20	AS3320 Deutsche Telekom AG	`6.25ms` from Frankfurt am Main, DE
80.129.187.36	AS3320 Deutsche Telekom AG	`10.79ms` from Frankfurt am Main, DE
46.27.70.4	AS12430 VODAFONE ESPANA S.A.U.	`2.35ms` from Madrid, ES
92.20.174.196	AS13285 TalkTalk Communications Limited	`7.94ms` from Manchester, GB
90.65.195.132	AS3215 Orange S.A.	`5.19ms` from Marseille, FR
151.66.212.68	AS1267 WIND TRE S.P.A.	`7.75ms` from Milan, IT
94.32.54.52	AS30722 Fastweb SpA	`5.74ms` from Rome, IT
110.44.7.196	AS27381 Index Exchange Inc.	`0.80ms` from Tokyo, JP
24.56.102.20	AS3356 Level 3 Parent, LLC	`0.22ms` from Tokyo, JP
210.155.140.52	AS7514 Computer Engineering & Consulting, Ltd.	`1.26ms` from Tokyo, JP
117.221.240.164	AS9829 National Internet Backbone	`14.76ms` from Bengaluru, IN

Traceroute

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

traceroute -a -n -q1 -f5 -m11 222.17.220.179

traceroute to 222.17.220.179 (222.17.220.179): 11 hops max, 52 byte packets

5 [AS4538] 101.4.114.181 95.983 ms

6 *

7 [AS4538] 101.4.117.81 96.392 ms

8 [AS4538] 101.4.114.38 127.821 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Denpasar, ID

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.

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