125.221.16.0/22

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 125.221.0.0/16

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

Read more

Pingable IPs

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

IP Address	ASN	Details
125.221.16.9	AS4538 China Education and Research Network Center	`19.82ms` from Guangzhou, CN
125.221.19.254	AS4538 China Education and Research Network Center	`6.07ms` 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
44.201.36.118	AS14618 Amazon.com, Inc.	`0.72ms` from Ashburn, US
50.241.17.246	AS7922 Comcast Cable Communications, LLC	`4.48ms` from Atlanta, US
75.190.103.166	AS11426 Charter Communications Inc	`5.25ms` from Charlotte, US
38.41.110.230	AS53256 Mulberry Telecommunications	`5.17ms` from Chicago, US
79.226.110.214	AS3320 Deutsche Telekom AG	`4.87ms` from Duesseldorf, DE
141.95.24.54	AS16276 OVH SAS	`0.12ms` from Frankfurt am Main, DE
91.2.163.118	AS3320 Deutsche Telekom AG	`1.41ms` from Hamburg, DE
130.232.145.22	AS1741 CSC - Tieteen tietotekniikan keskus Oy	`3.93ms` from Helsinki, FI
118.140.246.70	AS9304 HGC Global Communications Limited	`1.48ms` from Hong Kong, HK
70.137.101.166	AS7018 AT&T Enterprises, LLC	`1.58ms` from Kansas City, US
193.137.33.6	AS1930 Fundacao para a Ciencia e a Tecnologia, I.P.	`4.37ms` from Lisbon, PT
70.48.190.86	AS577 Bell Canada	`2.30ms` from Montreal, CA
222.9.108.150	AS18126 Chubu Telecommunications Company, Inc.	`4.28ms` from Osaka, JP
109.80.156.214	AS5610 O2 Czech Republic, a.s.	`5.68ms` from Prague, CZ
5.240.18.246	AS1257 Tele2 Sverige AB	`13.19ms` from Riga, LV
173.14.248.214	AS7922 Comcast Cable Communications, LLC	`5.09ms` from Seattle, US
14.65.190.70	AS4766 Korea Telecom	`2.01ms` from Seoul, KR
203.34.25.102	AS9544 Clarenston T/A Preferred Internet Provider	`0.63ms` from Sydney, AU
4.241.103.166	AS8075 Microsoft Corporation	`0.17ms` from Tokyo, JP
27.137.219.246	AS9824 JCOM Co., Ltd.	`3.94ms` from Tokyo, JP
41.104.148.86	AS36947 Telecom Algeria	`13.08ms` from Valencia, ES
188.226.124.86	AS12668 LLC "KomTehCentr"	`0.67ms` from Yekaterinburg, RU
82.83.188.246	AS3209 Vodafone GmbH	`9.08ms` from Hamburg, DE
125.191.157.6	AS17858 LG POWERCOMM	`1.98ms` from Incheon, KR
123.245.22.54	AS4134 CHINANET-BACKBONE	`3.00ms` from Liaoyang, CN

Traceroute

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

traceroute -a -n -q1 -f4 -m17 125.221.17.218

traceroute to 125.221.17.218 (125.221.17.218): 17 hops max, 52 byte packets

4 [] 37.49.238.60 1.954 ms

5 [AS23764] 5.154.154.45 18.392 ms

6 *

7 *

8 *

9 [AS4538] 101.4.114.181 287.973 ms

10 *

11 *

12 [AS4538] 101.4.112.66 302.33 ms

13 [AS4538] 101.4.118.214 304.948 ms

14 [AS4538] 101.4.114.253 303.944 ms

15 *

16 *

17 *

Measurement taken from

IPinfo ProbeNet in Paris, FR

On March 13th 2026

What are IP address ranges?

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