111.187.128.0/18

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 111.187.128.0/18

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
213.197.44.130 AS1136 KPN B.V. 1.18ms from Amsterdam, NL
112.35.183.194 AS9808 China Mobile Communications Group Co., Ltd. 1.93ms from Beijing, CN
54.68.89.98 AS16509 Amazon.com, Inc. 0.19ms from Boardman, US
95.102.34.98 AS6855 Slovak Telekom, a.s. 1.61ms from Bratislava, SK
186.39.120.194 AS22927 Telefonica de Argentina 2.76ms from Buenos Aires, AR
173.162.53.226 AS7922 Comcast Cable Communications, LLC 9.42ms from Detroit, US
74.234.76.130 AS8075 Microsoft Corporation 0.20ms from Dublin, IE
79.251.36.178 AS3320 Deutsche Telekom AG 6.36ms from Frankfurt am Main, DE
27.155.101.226 AS133774 Fuzhou 1.63ms from Fuzhou, CN
94.54.124.2 AS47524 Turksat Uydu Haberlesme ve Kablo TV Isletme A.S. 2.94ms from Istanbul, TR
93.224.30.162 AS3320 Deutsche Telekom AG 7.04ms from Nuernberg, DE
113.41.25.210 AS17506 ARTERIA Networks Corporation 7.96ms from Osaka, JP
218.226.96.194 AS9997 Suzuka Cable Co.,Ltd 5.40ms from Osaka, JP
96.82.87.34 AS7922 Comcast Cable Communications, LLC 6.42ms from San Jose, US
125.180.197.82 AS17858 LG POWERCOMM 2.10ms from Seoul, KR
175.213.222.194 AS4766 Korea Telecom 4.59ms from Seoul, KR
146.158.3.2 AS43849 Sever-Svyaz LLC 19.44ms from Yekaterinburg, RU
193.73.125.178 AS559 SWITCH 1.88ms from Zuerich, CH
158.228.26.2 AS46269 UKG Kronos Systems, LLC 0.45ms from Atlanta, US
46.24.16.98 AS12430 VODAFONE ESPANA S.A.U. 1.88ms from Barcelona, ES
161.18.107.178 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 7.79ms from Bogota, CO
67.175.104.98 AS7922 Comcast Cable Communications, LLC 5.92ms from Chicago, US
112.103.158.146 AS4134 CHINANET-BACKBONE 10.93ms from Harbin, CN
14.173.79.18 AS45899 VNPT Corp 2.24ms from Ho Chi Minh City, VN
93.171.200.50 AS59692 IQWeb FZ-LLC 0.26ms from Hong Kong, HK

Traceroute

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

$
traceroute -a -n -q1 -m22 111.187.188.251
traceroute to 111.187.188.251 (111.187.188.251): 22 hops max, 52 byte packets
1 [AS7806] 204.27.195.252 12.264 ms
2 [AS7806] 216.229.23.44 7.445 ms
3 *
4 *
5 *
6 *
7 [AS6939] 184.104.188.97 135.611 ms
8 [AS6939] 72.52.92.131 135.112 ms
9 *
10 [] 123.255.91.118 229.112 ms
11 [AS4538] 101.4.114.181 263.424 ms
12 *
13 *
14 *
15 *
16 [AS4538] 101.4.117.46 296.354 ms
17 [AS4538] 101.4.117.41 307.116 ms
18 *
19 [AS4538] 101.4.115.90 308.949 ms
20 *
21 *
22 *
Measurement taken from IPinfo ProbeNet in Lincoln, US
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

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