125.221.208.0/21

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

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
51.138.26.85 AS8075 Microsoft Corporation 0.20ms from Amsterdam, NL
68.81.115.181 AS7922 Comcast Cable Communications, LLC 7.97ms from Ashburn, US
181.93.108.133 AS7303 Telecom Argentina S.A. 1.56ms from Buenos Aires, AR
74.32.185.229 AS5650 Frontier Communications of America, Inc. 9.84ms from Chicago, US
208.91.15.181 AS22006 PRONSS 3.70ms from Dallas, US
94.206.117.53 AS15802 Emirates Integrated Telecommunications Company PJSC 12.66ms from Dubai, AE
18.153.85.69 AS16509 Amazon.com, Inc. 0.19ms from Frankfurt am Main, DE
176.95.89.5 AS3209 Vodafone GmbH 0.88ms from Hamburg, DE
103.253.19.5 AS151983 Orbit Internet Service Provider Pvt Ltd 17.15ms from Karachi, PK
213.108.54.5 AS25133 LLC McLaut-Invest 3.06ms from Kyiv, UA
193.62.50.5 AS786 Jisc Services Limited 8.13ms from London, GB
50.21.201.213 AS4181 TDS TELECOM 7.97ms from Los Angeles, US
222.190.253.165 AS4134 CHINANET-BACKBONE 1.05ms from Nanjing, CN
18.215.111.181 AS14618 Amazon.com, Inc. 0.19ms from Reston, US
114.30.195.101 AS38121 LG HelloVision Corp. 6.26ms from Seoul, KR
110.255.208.37 AS4837 CHINA UNICOM China169 Backbone 9.69ms from Tianjin, CN
103.75.118.69 AS136258 BrainStorm Network, Inc 0.01ms from Tokyo, JP
210.2.243.85 AS24276 JCOM Co., Ltd. 12.95ms from Tokyo, JP
67.23.148.37 AS20009 The City of Wadsworth 7.57ms from Columbus, US
39.50.158.53 AS17557 Pakistan Telecommunication Company Limited 12.55ms from Karachi, PK
176.36.114.229 AS39608 Lanet Network Ltd 0.47ms from Kyiv, UA
176.108.3.53 AS57800 Cadr-TV LLE TVRC 9.10ms from Kyiv, UA
81.63.138.133 AS3303 Swisscom (Switzerland) Ltd 1.58ms from Lausanne, CH
4.71.104.181 AS3356 Level 3 Parent, LLC 1.19ms from Los Angeles, US
186.53.129.117 AS6057 Administracion Nacional de Telecomunicaciones 1.87ms from Montevideo, UY

Traceroute

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

$
traceroute -a -n -q1 -m15 125.221.212.41
traceroute to 125.221.212.41 (125.221.212.41): 15 hops max, 52 byte packets
1 [AS31898] 140.91.230.5 0.079 ms
2 [AS9318] 39.120.201.130 22.758 ms
4 *
5 *
6 [] 123.255.91.118 76.203 ms
7 [AS4538] 101.4.114.181 94.037 ms
8 *
9 *
10 [AS4538] 101.4.112.66 120.169 ms
11 [AS4538] 101.4.112.37 116.578 ms
12 [AS4538] 101.4.115.66 115.716 ms
13 *
14 *
15 *
Measurement taken from IPinfo ProbeNet in Chuncheon, KR
On

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