125.221.224.0/20

AS4538  ·  China Education and Research Network Center

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Summary

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

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 125.221.0.0/16

No nearby ranges found.

Hosted domains

There are no domains currently hosted on this ASN.

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

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

IP Address ASN Details
125.221.224.254 AS4538 China Education and Research Network Center 6.77ms 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
35.226.35.164 AS396982 Google LLC 0.11ms from Council Bluffs, US
40.123.168.244 AS8075 Microsoft Corporation 0.20ms from Des Moines, US
81.142.164.228 AS2856 British Telecommunications PLC 6.26ms from Erith, GB
198.210.83.244 AS14155 Rural Telephone Service Co, Inc. 9.96ms from Kansas City, US
125.199.231.20 AS2518 BIGLOBE Inc. 8.55ms from Osaka, JP
91.227.232.100 AS56827 mirnet s.r.o. 1.40ms from Prague, CZ
39.81.206.244 AS4837 CHINA UNICOM China169 Backbone 9.19ms from Qingdao, CN
67.168.153.132 AS7922 Comcast Cable Communications, LLC 5.48ms from Seattle, US
61.100.35.84 AS9848 SEJONG NETWORKS 6.27ms from Seoul, KR
221.112.187.180 AS17506 ARTERIA Networks Corporation 2.11ms from Tokyo, JP
188.90.226.116 AS50266 Odido Netherlands B.V. 2.95ms from Amsterdam, NL
171.6.139.84 AS45758 Triple T Broadband Public Company Limited 2.31ms from Bangkok, TH
85.62.63.100 AS12479 Orange Espagne SA 1.37ms from Madrid, ES
73.120.45.212 AS7922 Comcast Cable Communications, LLC 14.66ms from Murfreesboro, US
95.34.35.116 AS2119 Telenor Norge AS 11.41ms from Oslo, NO
14.42.192.132 AS4766 Korea Telecom 6.13ms from Seoul, KR
118.36.86.20 AS4766 Korea Telecom 1.83ms from Seoul, KR
35.77.54.164 AS16509 Amazon.com, Inc. 1.04ms from Tokyo, JP
118.20.41.116 AS4713 NTT DOCOMO BUSINESS,Inc. 8.46ms from Tokyo, JP
149.248.57.116 AS20473 The Constant Company, LLC 0.17ms from Toronto, CA
105.100.45.20 AS36947 Telecom Algeria 9.26ms from Valencia, ES
82.177.43.228 AS20804 Exatel S.A. 0.32ms from Warsaw, PL
93.143.39.100 AS5391 Hrvatski Telekom d.d. 6.93ms from Zagreb, HR
93.202.208.212 AS3320 Deutsche Telekom AG 8.12ms from Frankfurt am Main, DE
217.160.239.4 AS8560 IONOS SE 2.68ms from Frankfurt am Main, DE

Traceroute

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

$
traceroute -a -n -q1 -f4 -m15 125.221.232.177
traceroute to 125.221.232.177 (125.221.232.177): 15 hops max, 52 byte packets
4 [AS4134] 222.184.63.53 1.889 ms
5 *
6 *
7 *
8 *
9 [AS4538] 101.4.117.125 28.719 ms
10 [AS4538] 101.4.118.213 30.053 ms
11 [AS4538] 101.4.112.37 28.47 ms
12 [AS4538] 101.4.115.66 30.606 ms
13 *
14 *
15 *
Measurement taken from IPinfo ProbeNet in Huai'an, CN
On

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