175.187.0.0/16

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 175.187.0.0/16

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 175.0.0.0/8

Range	ASN	Company	Num of IPs
175.112.0.0/12	AS9849	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS131882	SK Broadband Co Ltd	1,048,576
175.0.0.0/12	AS151823	CHINANET HUNAN PROVINCE NETWORK	1,048,576
175.112.0.0/12	AS10037	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS10065	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS38688	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS17834	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS152214	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS38708	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS38398	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS38408	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS23575	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS10183	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS45370	SK Broadband Co Ltd	1,048,576
175.0.0.0/12	AS63838	CHINANET HUNAN PROVINCE NETWORK	1,048,576
175.112.0.0/12	AS38410	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS9634	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS17836	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS45988	SK Broadband Co Ltd	1,048,576
175.0.0.0/12	AS4134	CHINANET HUNAN PROVINCE NETWORK	1,048,576
175.112.0.0/12	AS9967	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS38409	SK Broadband Co Ltd	1,048,576
175.0.0.0/12	AS63835	CHINANET HUNAN PROVINCE NETWORK	1,048,576
175.112.0.0/12	AS23593	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS23601	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS9854	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS9776	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS131802	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS9318	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS9523	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS55623	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS55615	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS55608	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS55632	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS55586	SK Broadband Co Ltd	1,048,576
175.112.0.0/12	AS45998	SK Broadband Co Ltd	1,048,576
175.160.0.0/12	AS4837	CHINA UNICOM Liaoning province network	1,048,576
175.208.0.0/13	AS9638	Korea Telecom	524,288
175.16.0.0/13	AS4837	China Unicom Jilin province network	524,288
175.136.0.0/13	AS4788	TM TECHNOLOGY SERVICES SDN. BHD.	524,288
175.32.0.0/13	AS4804	OPTUS INTERNET - RETAIL	524,288
175.208.0.0/13	AS9708	Korea Telecom	524,288
175.208.0.0/13	AS4766	Korea Telecom	524,288
175.208.0.0/13	AS9696	Korea Telecom	524,288
175.208.0.0/13	AS38396	Korea Telecom	524,288
175.96.0.0/14	AS131628	Taiwan Fixed Network CO.,LTD.	262,144
175.96.0.0/14	AS9924	Taiwan Fixed Network CO.,LTD.	262,144
175.148.0.0/14	AS4837	CHINA UNICOM Liaoning province network	262,144
175.152.0.0/14	AS4837	China Unicom SiChuan province network	262,144
175.146.0.0/15	AS4837	CHINA UNICOM Liaoning province network	131,072

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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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
92.70.143.48	AS1136 KPN B.V.	`3.11ms` from Amsterdam, NL
119.13.28.208	AS38794 UIH	`1.22ms` from Bangkok, TH
60.5.185.48	AS4837 CHINA UNICOM China169 Backbone	`11.51ms` from Beijing, CN
3.31.57.192	AS8987 Amazon Data Services Ireland Ltd	`0.31ms` from Boardman, US
13.247.143.240	AS16509 Amazon.com, Inc.	`0.10ms` from Cape Town, ZA
1.60.72.240	AS4837 CHINA UNICOM China169 Backbone	`15.35ms` from Changchun, CN
69.68.53.128	AS209 CenturyLink Communications, LLC	`11.99ms` from Detroit, US
144.208.68.48	AS22611 InMotion Hosting, Inc.	`0.21ms` from Los Angeles, US
51.223.138.176	AS25019 Saudi Telecom Company JSC	`3.61ms` from Manama, BH
91.84.63.240	AS8851 GCI Network Solutions Limited	`13.83ms` from Manchester, GB
90.66.12.160	AS3215 Orange S.A.	`13.45ms` from Marseille, FR
43.248.136.16	AS23650 AS Number for CHINANET jiangsu province backbone	`2.85ms` from Nanjing, CN
59.170.82.192	AS9824 JCOM Co., Ltd.	`15.98ms` from Osaka, JP
220.239.29.0	AS4804 Microplex PTY LTD	`8.88ms` from Perth, AU
72.167.210.224	AS26496 GoDaddy.com, LLC	`1.04ms` from Phoenix, US
187.214.249.208	AS8151 UNINET	`4.11ms` from Santiago de Queretaro, MX
49.142.227.240	AS7623 Gyeongbuk Cable TV	`6.67ms` from Seoul, KR
124.70.178.176	AS55990 Huawei Cloud Service data center	`2.51ms` from Suzhou, CN
14.202.229.128	AS7545 TPG Telecom Limited	`0.98ms` from Sydney, AU
74.15.82.32	AS577 Bell Canada	`1.53ms` from Toronto, CA
86.92.149.16	AS1136 KPN B.V.	`2.97ms` from Amsterdam, NL
125.80.246.192	AS4134 CHINANET-BACKBONE	`1.56ms` from Chongqing, CN
164.90.181.48	AS14061 DigitalOcean, LLC	`0.45ms` from Frankfurt am Main, DE
223.237.65.208	AS45609 Bharti Airtel Ltd. AS for GPRS Service	`2.79ms` from Kolkata, IN
61.137.154.16	AS4837 CHINA UNICOM China169 Backbone	`9.95ms` 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 -f2 -m12 175.187.91.249

traceroute to 175.187.91.249 (175.187.91.249): 12 hops max, 52 byte packets

2 [AS3257] 207.162.203.121 3.836 ms

3 [AS3257] 89.149.140.174 133.431 ms

4 [AS3257] 154.14.165.14 212.598 ms

5 [AS58453] 223.118.18.46 96.927 ms

6 *

7 *

8 [] 123.255.91.118 239.465 ms

9 [AS4538] 101.4.114.181 263.81 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Detroit, US

On November 14th 2025

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