125.218.128.0/21

AS4538  ·  China Education and Research Network Center

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Summary

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

WHOIS Details

inetnum:        125.216.0.0 - 125.218.255.255
netname:        GZR-CERNET
descr:          China Education and Research Network
descr:          Guangzhou Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
remarks:        confederation
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:18Z
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

Nearby Ranges

BGP prefixes that overlap with 125.218.0.0/16

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

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

IP Address ASN Details
125.218.129.2 AS4538 China Education and Research Network Center 3.05ms from Guangzhou, 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
73.81.103.85 AS7922 Comcast Cable Communications, LLC 7.37ms from Ashburn, US
212.227.215.133 AS8560 IONOS SE 0.72ms from Berlin, DE
84.164.185.229 AS3320 Deutsche Telekom AG 4.72ms from Duesseldorf, DE
42.118.59.213 AS18403 FPT Telecom Company 1.93ms from Ho Chi Minh City, VN
83.34.173.197 AS3352 TELEFONICA DE ESPANA S.A.U. 13.27ms from Madrid, ES
209.215.208.5 AS7018 AT&T Enterprises, LLC 1.30ms from Miami, US
170.106.148.213 AS132203 Tencent Building, Kejizhongyi Avenue 0.23ms from San Jose, US
14.91.104.213 AS4766 Korea Telecom 6.83ms from Seoul, KR
175.237.221.229 AS4766 Korea Telecom 1.67ms from Seoul, KR
185.254.80.53 AS202395 Fiberaccessbolaget i Sverige AB 0.25ms from Stockholm, SE
86.102.181.53 AS12332 PJSC Rostelecom 0.95ms from Vladivostok, RU
52.170.137.213 AS8075 Microsoft Corporation 0.43ms from Ashburn, US
218.12.86.101 AS4837 CHINA UNICOM China169 Backbone 5.83ms from Beijing, CN
101.20.86.85 AS4837 CHINA UNICOM China169 Backbone 5.34ms from Beijing, CN
39.156.182.5 AS9808 China Mobile Communications Group Co., Ltd. 2.08ms from Beijing, CN
172.203.26.21 AS8075 Microsoft Corporation 0.24ms from Boydton, US
183.215.81.133 AS56047 China Mobile communications corporation 1.00ms from Changsha, CN
64.5.125.133 AS22820 Cybera, Inc. 0.41ms from Chicago, US
65.61.175.101 AS33070 Rackspace Hosting 1.05ms from Dallas, US
20.109.210.133 AS8075 Microsoft Corporation 0.35ms from Des Moines, US
175.44.176.197 AS4837 CHINA UNICOM China169 Backbone 12.60ms from Fuzhou, CN
154.118.66.229 AS37340 SPECTRANET LIMITED 19.19ms from Lagos, NG
42.53.215.117 AS4837 CHINA UNICOM China169 Backbone 15.95ms from Liaoyang, CN
187.202.15.133 AS8151 UNINET 1.07ms from Mexico City, MX
77.51.53.101 AS12389 PJSC Rostelecom 1.62ms from Moscow, RU

Traceroute

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

$
traceroute -a -n -q1 -m15 125.218.134.30
traceroute to 125.218.134.30 (125.218.134.30): 15 hops max, 52 byte packets
1 [AS40021] 209.126.0.11 0.399 ms
2 *
3 [AS3356] 4.69.219.45 56.83 ms
4 [AS3356] 4.71.141.82 150.72 ms
5 *
6 *
7 *
8 [AS4538] 101.4.114.181 235.371 ms
9 *
10 *
11 [AS4538] 101.4.114.38 252.908 ms
12 [AS4538] 101.4.114.61 267.697 ms
13 *
14 *
15 *
Measurement taken from IPinfo ProbeNet in St. Louis, US
On

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