111.187.0.0/19

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 111.186.0.0/15
Registry APNIC
ID SHR-CERNET

WHOIS Details

inetnum:        111.186.0.0 - 111.187.255.255
netname:        SHR-CERNET
descr:          China Education and Research Network
descr:          Shanghai Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        NS2.NET.EDU.CN
remarks:        DNS.EDU.CN
remarks:        DNS2.EDU.CN
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:  2020-09-03T09:15:57Z
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:         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:        http://www.ccert.edu.cn
remarks:        abuse@cernet.edu.cn 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:         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 2025-08-15
abuse-mailbox:  abuse@cernet.edu.cn
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:         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:          111.187.0.0/16
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2009-05-25T06:45:30Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 111.187.0.0/19

Range ASN Company Num of IPs
111.186.0.0/15 AS4538 China Education and Research Network 131,072

Nearby Ranges

BGP prefixes that overlap with 111.187.0.0/16

Range ASN Company Num of IPs
111.186.0.0/15 AS4538 China Education and Research Network 131,072

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
197.45.217.3 AS8452 TE-AS 5.70ms from Cairo, EG
41.238.206.67 AS8452 TE-AS 10.02ms from Cairo, EG
83.252.204.3 AS1257 Tele2 Sverige AB 0.59ms from Goeteborg, SE
217.182.245.83 AS16276 OVH SAS 0.09ms from Gravelines, FR
171.235.200.131 AS7552 Viettel Group 5.84ms from Ho Chi Minh City, VN
129.212.163.3 AS14061 DigitalOcean, LLC 0.66ms from London, GB
94.5.0.243 AS5607 Sky UK Limited 2.59ms from London, GB
76.79.119.3 AS20001 Charter Communications Inc 2.16ms from Los Angeles, US
195.245.89.3 AS29119 AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL 7.17ms from Madrid, ES
203.140.181.3 AS59108 KATCH NETWORK INC. 3.56ms from Osaka, JP
86.219.90.227 AS3215 Orange S.A. 11.74ms from Paris, FR
206.251.235.35 AS11320 LightEdge Solutions 0.75ms from San Diego, US
47.23.155.67 AS6128 Cablevision Systems Corp. 4.25ms from Secaucus, US
211.177.249.35 AS9318 SK Broadband Co Ltd 6.21ms from Seoul, KR
203.106.95.243 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 5.98ms from Sepang, MY
54.169.160.19 AS16509 Amazon.com, Inc. 0.09ms from Singapore, SG
111.246.208.147 AS3462 Data Communication Business Group 2.47ms from Taipei, TW
83.216.45.3 AS51265 Mass Response Service GmbH 0.66ms from Vienna, AT
178.149.27.3 AS31042 Serbia BroadBand-Srpske Kablovske mreze d.o.o. 4.07ms from Belgrade, RS
185.5.14.3 AS24978 Telenec Telekommunikation Neustadt GmbH 9.45ms from Berlin, DE
20.158.28.51 AS8070 Microsoft Corporation 0.62ms from Boydton, US
109.234.251.3 AS12676 HKN GmbH 0.48ms from Frankfurt am Main, DE
3.123.248.163 AS16509 Amazon.com, Inc. 0.18ms from Frankfurt am Main, DE
83.196.243.35 AS3215 Orange S.A. 7.29ms from Frankfurt am Main, DE
42.176.190.179 AS4837 CHINA UNICOM China169 Backbone 8.00ms 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 -m9 111.187.21.87
traceroute to 111.187.21.87 (111.187.21.87): 9 hops max, 52 byte packets
2 *
3 *
4 *
5 [] 123.255.91.118 103.845 ms
6 [AS4538] 101.4.114.181 141.756 ms
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Delhi, IN
On

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