219.223.66.0/23

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 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

Nearby Ranges

BGP prefixes that overlap with 219.223.0.0/16

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

Read more

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
187.175.52.247	AS8151 UNINET	`0.73ms` from Cancún, MX
217.229.188.7	AS3320 Deutsche Telekom AG	`3.28ms` from Duesseldorf, DE
91.16.103.151	AS3320 Deutsche Telekom AG	`4.39ms` from Frankfurt am Main, DE
87.188.246.215	AS3320 Deutsche Telekom AG	`3.62ms` from Frankfurt am Main, DE
51.75.228.167	AS16276 OVH SAS	`0.09ms` from Gravelines, FR
16.163.54.103	AS16509 Amazon.com, Inc.	`0.11ms` from Hong Kong, HK
2.16.151.87	AS20940 Akamai International B.V.	`1.07ms` from Istanbul, TR
219.92.8.87	AS4788 TM TECHNOLOGY SERVICES SDN. BHD.	`2.41ms` from Kuala Lumpur, MY
178.151.122.135	AS13188 CONTENT DELIVERY NETWORK LTD	`3.86ms` from Kyiv, UA
203.202.229.7	AS38176 ABS - Agility Beyond Space	`3.31ms` from Larnaca, CY
83.106.23.119	AS5378 Vodafone Limited	`2.62ms` from Manchester, GB
151.51.194.135	AS1267 WIND TRE S.P.A.	`7.71ms` from Milan, IT
180.20.203.183	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.20ms` from Osaka, JP
3.233.0.215	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
5.149.159.103	AS56724 Teleskan-Intercom Ltd	`0.96ms` from Saint Petersburg, RU
126.108.213.119	AS17676 SoftBank Corp.	`7.34ms` from Tokyo, JP
130.153.26.7	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`2.99ms` from Tokyo, JP
191.102.73.135	AS262186 TV AZTECA SUCURSAL COLOMBIA	`4.63ms` from Bogotá, CO
132.247.46.71	AS278 Universidad Nacional Autonoma de Mexico	`12.72ms` from Cancún, MX
183.66.22.215	AS4134 CHINANET-BACKBONE	`6.08ms` from Chongqing, CN
18.202.53.23	AS16509 Amazon.com, Inc.	`0.20ms` from Dublin, IE
104.101.242.199	AS16625 Akamai Technologies, Inc.	`0.31ms` from Hamburg, DE
113.20.100.23	AS45903 CMC Telecom Infrastructure Company	`0.56ms` from Hanoi, VN
14.234.176.247	AS45899 VNPT Corp	`2.40ms` from Ho Chi Minh City, VN
211.200.163.247	AS9318 SK Broadband Co Ltd	`1.63ms` from Incheon, KR

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 219.223.66.34

traceroute to 219.223.66.34 (219.223.66.34): 11 hops max, 52 byte packets

3 [] 195.42.145.161 9.267 ms

4 [AS58453] 223.118.18.166 35.242 ms

5 [AS58453] 223.120.15.250 176.519 ms

6 [AS58453] 223.120.2.118 180.955 ms

7 *

8 [AS4538] 101.4.114.181 251.079 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Paris, FR

On January 30th 2026

What are IP address ranges?

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