125.220.128.0/19

AS4538  ·  China Education and Research Network Center

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Summary

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

WHOIS Details

inetnum:        125.220.0.0 - 125.221.255.255
netname:        WHR-CERNET
descr:          China Education and Research Network
descr:          Wuhan 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:  2020-09-03T09:16:22Z
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

route:          125.221.0.0/16
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2009-01-05T03:10:57Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 125.220.0.0/16

No nearby ranges found.

Hosted domains

There are 3 domain names hosted across 3 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
125.220.147.47 whuctf.club 1
125.220.157.244 modelseek.cn 1
125.220.157.243 whucn.com 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

Pingable IPs

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

IP Address ASN Details
125.220.159.193 AS4538 China Education and Research Network Center 16.60ms from Guangzhou, CN
125.220.153.40 AS4538 China Education and Research Network Center 16.29ms from Guangzhou, CN
125.220.128.42 AS4538 China Education and Research Network Center 15.92ms from Guangzhou, CN
125.220.146.20 AS4538 China Education and Research Network Center 16.07ms from Guangzhou, CN
125.220.157.142 AS4538 China Education and Research Network Center 2.71ms from Wuhan, 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
40.135.26.51 AS7029 Windstream Communications LLC 5.99ms from Ashburn, US
91.176.202.3 AS5432 Proximus NV 1.27ms from Brussels, BE
190.30.99.243 AS7303 Telecom Argentina S.A. 1.85ms from Buenos Aires, AR
72.18.209.3 AS400227 Interactive Brokers Corp 2.86ms from Chicago, US
186.192.225.19 AS28145 RLINE TELECOM LTDA 11.62ms from Curitiba, BR
46.114.115.227 AS6805 Telefonica Germany GmbH & Co.OHG 9.21ms from Duesseldorf, DE
179.139.6.3 AS28573 Claro NXT Telecomunicacoes Ltda 12.01ms from Fortaleza, BR
178.34.78.67 AS12389 PJSC Rostelecom 19.73ms from Moscow, RU
191.253.15.3 AS53080 VERO S.A 11.88ms from Osasco, BR
73.124.37.3 AS7922 Comcast Cable Communications, LLC 6.79ms from Pompano Beach, US
115.141.126.35 AS17858 LG POWERCOMM 3.04ms from Seoul, KR
110.231.39.147 AS4837 CHINA UNICOM China169 Backbone 9.58ms from Beijing, CN
212.224.128.83 AS47377 Orange Belgium SA 1.12ms from Brussels, BE
136.183.227.131 AS19933 Buffalo State College 1.06ms from Buffalo, US
75.191.55.51 AS11426 Charter Communications Inc 11.26ms from Charlotte, US
67.141.72.227 AS7029 Windstream Communications LLC 2.58ms from Dallas, US
162.157.95.243 AS852 TELUS Communications Inc. 1.57ms from Edmonton, CA
188.252.4.3 AS29649 Limes sp. z o.o. 0.96ms from Gdansk, PL
178.187.168.19 AS12389 PJSC Rostelecom 5.70ms from Novosibirsk, RU
200.186.77.99 AS3549 Level 3 Parent, LLC 0.74ms from Osasco, BR
24.23.164.211 AS7922 Comcast Cable Communications, LLC 6.18ms from San Jose, US
183.99.16.19 AS4766 Korea Telecom 3.71ms from Seoul, KR
49.3.244.51 AS4804 Microplex PTY LTD 3.21ms from Sydney, AU
178.134.181.99 AS35805 JSC "Silknet" 5.04ms from Tbilisi, GE
174.89.17.67 AS577 Bell Canada 3.40ms from Toronto, CA

Traceroute

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

$
traceroute -a -n -q1 -f4 -m14 125.220.154.88
traceroute to 125.220.154.88 (125.220.154.88): 14 hops max, 52 byte packets
4 [AS4538] 101.4.114.181 35.547 ms
5 *
6 *
7 [AS4538] 101.4.112.66 52.258 ms
8 [AS4538] 101.4.118.214 56.913 ms
9 [AS4538] 101.4.114.18 53.136 ms
10 *
11 [AS4538] 218.197.158.253 57.679 ms
12 *
13 *
14 *
Measurement taken from IPinfo ProbeNet in Hong Kong, HK
On

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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