125.221.242.0/23

AS4538 · China Education and Research Network Center

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Summary

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

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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
196.188.126.71	AS24757 Ethio Telecom	`2.63ms` from Addis Ababa, ET
65.37.92.7	AS5650 Frontier Communications of America, Inc.	`13.42ms` from Ashburn, US
1.2.152.231	AS23969 TOT Public Company Limited	`6.03ms` from Bangkok, TH
50.66.161.39	AS6327 Shaw Communications	`5.06ms` from Calgary, CA
63.33.195.215	AS16509 Amazon.com, Inc.	`0.59ms` from Dublin, IE
52.210.37.167	AS16509 Amazon.com, Inc.	`0.26ms` from Dublin, IE
85.234.72.215	AS199524 G-Core Labs S.A.	`0.67ms` from Miami, US
170.9.42.135	AS31898 Oracle Corporation	`0.15ms` from Montreal, CA
222.9.22.23	AS18126 Chubu Telecommunications Company, Inc.	`5.08ms` from Osaka, JP
66.126.131.103	AS7018 AT&T Enterprises, LLC	`6.46ms` from Redding, US
35.153.226.7	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
125.130.100.151	AS4766 Korea Telecom	`1.80ms` from Seoul, KR
114.47.135.55	AS3462 Data Communication Business Group	`4.20ms` from Taichung, TW
124.142.142.183	AS9824 JCOM Co., Ltd.	`14.87ms` from Tokyo, JP
136.227.231.247	AS23089 Hotwire Communications	`1.83ms` from Atlanta, US
59.110.205.247	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.35ms` from Beijing, CN
123.120.216.247	AS4808 China Unicom Beijing Province Network	`3.84ms` from Beijing, CN
84.194.67.151	AS6848 Telenet BV	`5.17ms` from Brussels, BE
201.219.96.55	AS14232 Cooperativa Telefónica Pinamar Ltda.	`8.95ms` from Buenos Aires, AR
166.152.109.199	AS6167 Verizon Business	`13.48ms` from Chicago, US
34.136.153.23	AS396982 Google LLC	`0.11ms` from Council Bluffs, US
35.238.223.215	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
82.197.20.7	AS34263 MPY Telecom Oy	`4.09ms` from Helsinki, FI
49.23.25.119	AS4766 Korea Telecom	`8.47ms` from Incheon, KR
85.105.167.39	AS9121 Turk Telekomunikasyon Anonim Sirketi	`8.81ms` from Izmir, TR

Traceroute

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

traceroute -a -n -q1 -f5 -m12 125.221.242.190

traceroute to 125.221.242.190 (125.221.242.190): 12 hops max, 52 byte packets

5 [AS6939] 184.104.188.149 66.976 ms

6 *

7 *

8 [] 123.255.91.118 196.839 ms

9 [AS4538] 101.4.114.181 230.719 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Halifax, CA

On January 19th 2026

What are IP address ranges?

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