175.186.0.0/17

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	175.186.0.0/15
Registry	APNIC
ID	SHR-CERNET

WHOIS Details

inetnum:        175.186.0.0 - 175.187.255.255
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
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:11Z
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:          175.186.0.0/15
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2010-01-28T10:56:00Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 175.186.0.0/17

Range	ASN	Company	Num of IPs
175.186.0.0/15	AS4538	China Education and Research Network	131,072

Nearby Ranges

BGP prefixes that overlap with 175.186.0.0/16

Range	ASN	Company	Num of IPs
175.186.0.0/15	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

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Pingable IPs

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

IP Address	ASN	Details
175.186.0.17	AS4538 China Education and Research Network Center	`2.13ms` 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
122.179.161.1	AS24560 Bharti Airtel Ltd., Telemedia Services	`2.17ms` from Ahmedabad, IN
213.155.29.1	AS49791 Newserverlife LLC	`0.46ms` from Almaty, KZ
144.178.70.81	AS39686 Eurofiber Nederland BV	`0.34ms` from Amsterdam, NL
73.152.212.1	AS7922 Comcast Cable Communications, LLC	`8.42ms` from Ashburn, US
135.130.112.1	AS8075 Microsoft Corporation	`0.77ms` from Ashburn, US
65.153.25.65	AS209 CenturyLink Communications, LLC	`0.55ms` from Atlanta, US
76.97.184.1	AS7922 Comcast Cable Communications, LLC	`1.40ms` from Atlanta, US
164.115.243.241	AS38450 Ministry of Infomation Communication Technology	`2.15ms` from Bangkok, TH
186.87.34.1	AS10620 Telmex Colombia S.A.	`11.31ms` from Bogotá, CO
78.142.92.1	AS35579 KELAG-Karntner Elektrizitats - Aktiengesellschaft	`8.37ms` from Bratislava, SK
195.168.138.17	AS5578 SWAN, a.s.	`0.51ms` from Bratislava, SK
179.61.129.129	AS214000 Voxnet Bilisim Teknolojileri Sanayi Ve Ticaret Limited Sirketi	`4.64ms` from Bursa, TR
190.73.224.1	AS8048 CANTV Servicios, Venezuela	`10.05ms` from Caracas, VE
111.23.55.129	AS56047 China Mobile communications corporation	`1.87ms` from Changsha, CN
182.141.229.1	AS4134 CHINANET-BACKBONE	`10.39ms` from Chengdu, CN
199.38.219.97	AS53914 Genesis Hosting Solutions, LLC	`0.82ms` from Chicago, US
50.219.36.113	AS7922 Comcast Cable Communications, LLC	`1.11ms` from Chicago, US
128.76.31.193	AS3292 TDC Holding A/S	`2.21ms` from Copenhagen, DK
177.135.70.1	AS18881 TELEFÔNICA BRASIL S.A	`1.24ms` from Curitiba, BR
197.155.128.113	AS30985 Orange Mali SA	`16.14ms` from Dakar, SN
216.177.171.209	AS16527 Guadalupe Valley Telephone Cooperative, Inc.	`7.72ms` from Dallas, US
136.49.77.161	AS16591 Google Fiber Inc.	`5.05ms` from Dallas, US
68.41.58.1	AS7922 Comcast Cable Communications, LLC	`6.63ms` from Detroit, US
82.31.114.1	AS5089 Virgin Media Limited	`8.02ms` from Dublin, IE
99.131.50.113	AS7018 AT&T Enterprises, LLC	`2.77ms` from Durham, US

Traceroute

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

traceroute -a -n -q1 -f2 -m20 175.186.49.107

traceroute to 175.186.49.107 (175.186.49.107): 20 hops max, 52 byte packets

2 [AS136557] 103.216.222.16 0.119 ms

3 [AS136557] 103.216.222.123 0.124 ms

4 [AS136557] 103.216.222.121 1.423 ms

5 *

6 *

7 *

8 [] 123.255.91.118 34.676 ms

9 [AS4538] 101.4.114.181 68.129 ms

10 *

11 *

12 *

13 [AS4538] 101.4.112.70 69.529 ms

14 *

15 [AS4538] 101.4.116.117 73.563 ms

16 *

17 [AS4538] 101.4.117.29 96.094 ms

18 *

19 *

20 *

Measurement taken from

IPinfo ProbeNet in Singapore, SG

On February 16th 2026

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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