111.186.0.0/18

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:         [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:          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 111.186.0.0/18

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 111.186.0.0/16

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

Hosted domains

There are 15 domain names hosted across 13 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP

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

1,059 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
111.186.43.62 AS4538 China Education and Research Network Center 3.08ms from Shanghai, CN
111.186.50.0 AS4538 China Education and Research Network Center 1.74ms from Shanghai, CN
111.186.44.0 AS4538 China Education and Research Network Center 2.25ms from Shanghai, CN
111.186.36.254 AS4538 China Education and Research Network Center 2.38ms from Shanghai, CN
111.186.53.0 AS4538 China Education and Research Network Center 2.18ms from Shanghai, CN
111.186.42.126 AS4538 China Education and Research Network Center 1.59ms from Shanghai, CN
111.186.57.67 AS4538 China Education and Research Network Center 1.57ms from Shanghai, CN
111.186.63.1 AS4538 China Education and Research Network Center 2.33ms from Shanghai, CN
111.186.56.44 AS4538 China Education and Research Network Center 1.53ms from Shanghai, CN
111.186.37.11 AS4538 China Education and Research Network Center 1.62ms from Shanghai, CN
111.186.54.0 AS4538 China Education and Research Network Center 3.43ms from Shanghai, CN
111.186.58.144 AS4538 China Education and Research Network Center 1.74ms from Shanghai, CN
111.186.46.0 AS4538 China Education and Research Network Center 3.04ms from Shanghai, CN
111.186.59.254 AS4538 China Education and Research Network Center 1.59ms from Shanghai, CN
111.186.52.0 AS4538 China Education and Research Network Center 2.12ms from Shanghai, CN
111.186.48.0 AS4538 China Education and Research Network Center 2.65ms from Shanghai, CN
111.186.60.57 AS4538 China Education and Research Network Center 1.73ms from Shanghai, CN
111.186.38.6 AS4538 China Education and Research Network Center 2.01ms from Shanghai, CN
111.186.41.134 AS4538 China Education and Research Network Center 1.78ms from Shanghai, CN
111.186.40.169 AS4538 China Education and Research Network Center 1.72ms from Shanghai, CN
111.186.61.3 AS4538 China Education and Research Network Center 1.78ms from Shanghai, CN
111.186.5.113 AS4538 China Education and Research Network Center 2.24ms from Shanghai, CN
111.186.11.30 AS4538 China Education and Research Network Center 1.86ms from Shanghai, CN
111.186.7.158 AS4538 China Education and Research Network Center 2.46ms from Shanghai, CN
111.186.3.1 AS4538 China Education and Research Network Center 1.63ms from Shanghai, 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
62.131.148.194 AS1136 KPN B.V. 2.80ms from Amsterdam, NL
54.39.98.34 AS16276 OVH SAS 0.12ms from Beauharnois, CA
73.47.53.162 AS7922 Comcast Cable Communications, LLC 7.63ms from Boston, US
213.119.19.34 AS6848 Telenet BV 7.36ms from Brussels, BE
140.177.119.114 AS12119 ITV-3 12.44ms from Chicago, US
72.16.10.2 AS7029 Windstream Communications LLC 19.84ms from Chicago, US
113.206.214.82 AS4837 CHINA UNICOM China169 Backbone 2.04ms from Chongqing, CN
198.167.185.50 AS14230 ARK Data Centers LLC 6.13ms from Cleveland, US
216.41.176.2 AS55044 LR Communications, Inc. 10.35ms from Denver, US
216.245.178.146 AS7381 BroadbandONE, LLC 1.19ms from Denver, US
173.11.200.226 AS7922 Comcast Cable Communications, LLC 9.42ms from Houston, US
94.61.252.178 AS12353 Vodafone Portugal 6.57ms from Lisbon, PT
104.247.89.50 AS14401 SolidNetwork Technologies, Inc. 0.11ms from Los Angeles, US
84.64.196.66 AS5378 Vodafone Limited 3.50ms from Manchester, GB
50.74.235.66 AS12271 Charter Communications Inc 1.80ms from New York City, US
113.155.145.82 AS18126 Chubu Telecommunications Company, Inc. 10.65ms from Osaka, JP
56.126.113.130 AS16509 Amazon.com, Inc. 0.16ms from Osasco, BR
191.36.246.162 AS263345 Power Tech Telecom 15.61ms from Osasco, BR
212.67.39.2 AS29605 Axians Cloud Services Provider 0.69ms from Paris, FR
46.13.182.194 AS13036 T-Mobile Czech Republic a.s. 8.11ms from Prague, CZ
23.209.30.18 AS16625 Akamai Technologies, Inc. 0.29ms from Seattle, US
81.21.156.2 AS62862 Rapid Fiber Internet, LLC 8.67ms from Atlanta, US
115.94.197.34 AS3786 LG DACOM Corporation 1.68ms from Incheon, KR
193.193.115.114 AS5089 Virgin Media Limited 8.32ms from London, GB
151.227.17.50 AS5607 Sky UK Limited 8.75ms from London, GB

Traceroute

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

$
traceroute -a -n -q1 111.186.54.0
traceroute to 111.186.54.0 (111.186.54.0): 64 hops max, 52 byte packets
1 [AS15169] 66.249.94.174 17.368 ms
2 *
3 [AS6453] 195.219.50.189 17.407 ms
5 [AS2914] 129.250.8.202 17.465 ms
6 [AS2914] 129.250.2.4 17.749 ms
7 [AS2914] 129.250.7.34 28.925 ms
8 [AS2914] 129.250.4.80 200.528 ms
9 *
10 [AS2914] 203.131.254.214 201.748 ms
11 [AS4538] 101.4.114.221 234.478 ms
12 [AS4538] 101.4.114.169 239.649 ms
13 *
14 *
15 *
16 [AS4538] 202.112.27.22 254.744 ms
17 *
18 *
19 *
20 [AS4538] 111.186.54.0 277.681 ms
Measurement taken from IPinfo ProbeNet in Berlin, DE
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.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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