222.23.0.0/20

AS4538 · China Education and Research Network Center

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Summary

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

WHOIS Details

inetnum:        222.23.0.0 - 222.25.255.255
netname:        XAR-CERNET
descr:          China Education and Research Network
descr:          Xi'an 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:  2020-09-03T09:16:19Z
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 222.23.0.0/16

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

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
106.195.97.52	AS45609 Bharti Airtel Ltd. AS for GPRS Service	`5.50ms` from Delhi, IN
54.170.72.84	AS16509 Amazon.com, Inc.	`0.19ms` from Dublin, IE
134.93.107.116	AS2857 Johannes Gutenberg-Universitaet Mainz	`4.30ms` from Frankfurt am Main, DE
121.32.113.84	AS4134 CHINANET-BACKBONE	`1.76ms` from Guangzhou, CN
68.105.67.180	AS22773 Cox Communications Inc.	`8.13ms` from Los Angeles, US
31.216.116.132	AS15805 EPIC LTD	`1.59ms` from Nicosia, CY
3.34.193.20	AS16509 Amazon.com, Inc.	`0.32ms` from Seoul, KR
14.52.118.196	AS4766 Korea Telecom	`1.41ms` from Seoul, KR
47.113.96.4	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.45ms` from Shenzhen, CN
211.146.33.20	AS7641 China Broadcasting TV Net	`5.35ms` from Beijing, CN
23.100.233.84	AS8075 Microsoft Corporation	`0.21ms` from Chicago, US
189.75.157.84	AS8167 V tal	`0.94ms` from Curitiba, BR
87.161.0.212	AS3320 Deutsche Telekom AG	`4.26ms` from Duesseldorf, DE
101.188.77.4	AS1221 Telstra Limited	`1.00ms` from Melbourne, AU
173.68.17.132	AS701 Verizon Business	`2.55ms` from New York City, US
75.202.116.132	AS6167 Verizon Business	`8.71ms` from Portland, US
73.157.247.148	AS7922 Comcast Cable Communications, LLC	`4.47ms` from Portland, US
107.148.226.4	AS54600 PEG TECH INC	`0.26ms` from San Jose, US
203.246.166.100	AS9286 KINX	`0.44ms` from Seoul, KR
101.179.193.132	AS1221 Telstra Limited	`4.81ms` from Sydney, AU
34.165.2.4	AS396982 Google LLC	`0.10ms` from Tel Aviv, IL
142.126.105.212	AS577 Bell Canada	`1.70ms` from Toronto, CA
23.151.224.52	AS46924 Bob Jones University	`3.84ms` from Charlotte, US
72.108.85.100	AS6167 Verizon Business	`17.95ms` from Chicago, US
75.188.223.244	AS10796 Charter Communications Inc	`9.98ms` from Columbus, US

Traceroute

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

traceroute -a -n -q1 -f6 -m12 222.23.12.125

traceroute to 222.23.12.125 (222.23.12.125): 12 hops max, 52 byte packets

6 [AS174] 38.150.75.1 74.237 ms

7 [AS4538] 101.4.114.181 107.903 ms

8 *

9 [AS4538] 101.4.117.81 97.384 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Ho Chi Minh City, VN

On December 6th 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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