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	AS9318	SK Broadband Co Ltd	1,048,576
175.160.0.0/12	AS4837	CHINA UNICOM Liaoning province network	1,048,576
175.0.0.0/12	AS4134	CHINANET HUNAN PROVINCE NETWORK	1,048,576
175.0.0.0/12	AS63838	CHINANET HUNAN PROVINCE NETWORK	1,048,576
175.0.0.0/12	AS151823	CHINANET HUNAN PROVINCE NETWORK	1,048,576
175.0.0.0/12	AS63835	CHINANET HUNAN PROVINCE NETWORK	1,048,576
175.208.0.0/13	AS4766	Korea Telecom	524,288
175.16.0.0/13	AS4837	China Unicom Jilin province network	524,288
175.32.0.0/13	AS4804	OPTUS INTERNET - RETAIL	524,288
175.136.0.0/13	AS4788	TM TECHNOLOGY SERVICES SDN. BHD.	524,288
175.96.0.0/14	AS9924	Taiwan Fixed Network CO.,LTD.	262,144
175.152.0.0/14	AS4837	China Unicom SiChuan province network	262,144
175.96.0.0/14	AS131628	Taiwan Fixed Network CO.,LTD.	262,144
175.148.0.0/14	AS4837	CHINA UNICOM Liaoning province network	262,144
175.146.0.0/15	AS4837	CHINA UNICOM Liaoning province network	131,072
175.30.0.0/15	AS4134	CHINANET Jilin province network	131,072
175.104.0.0/15	AS10013	FreeBit Co., Ltd.	131,072
175.42.0.0/15	AS4837	China Unicom Fujian Province Network	131,072
175.186.0.0/15	AS4538	China Education and Research Network	131,072
175.144.0.0/15	AS4788	TM TECHNOLOGY SERVICES SDN. BHD.	131,072
175.25.0.0/16	AS56019	Beijing SHUJUJIA	65,536
175.137.0.0/16	AS4788	TMNST	65,536
175.145.0.0/16	AS4788	TMNST	65,536
175.141.0.0/16	AS4788	TMNST	65,536
175.144.0.0/16	AS4788	TMNST	65,536
175.140.0.0/16	AS4788	TMNST	65,536
175.139.0.0/16	AS4788	TMNST	65,536
175.136.0.0/16	AS4788	TMNST	65,536
175.185.0.0/16	AS4538	China Education and Research Network	65,536
175.143.0.0/16	AS4788	TMNST	65,536
175.138.0.0/16	AS4788	TMNST	65,536
175.177.0.0/16	AS9365	its communications Inc.	65,536
175.142.0.0/16	AS4788	TMNST	65,536
175.157.0.0/16	AS18001	Dialog Axiata PLC.	65,536
175.27.0.0/16	AS45090	Tencent cloud computing (Beijing) Co., Ltd.	65,536
175.156.0.0/16	AS4773	M1 LIMITED	65,536
175.44.0.0/16	AS4837	China Unicom Fujian Province Network	65,536
175.25.0.0/16	AS23724	Beijing SHUJUJIA	65,536
175.178.0.0/16	AS45090	Tencent cloud computing (Beijing) Co., Ltd.	65,536
175.24.0.0/16	AS45090	Tencent cloud computing (Beijing) Co., Ltd.	65,536
175.176.0.0/17	AS10139	Smart Broadband Incorporated	32,768
175.106.128.0/17	AS4837	Zhongyuan Petroleum Explore Bureau Communication Company	32,768
175.110.128.0/17	AS25019	Saudi Telecom Company JSC	32,768
175.156.128.0/17	AS4773	M1 Ltd	32,768
175.100.0.0/17	AS38623	VIETTEL (CAMBODIA) PTE., LTD.	32,768
175.184.0.0/17	AS2510	FUJITSU LIMITED	32,768
175.179.128.0/17	AS2510	FUJITSU LIMITED	32,768
175.28.128.0/17	AS7679	QTnet,Inc.	32,768
175.99.0.0/18	AS9924	Taiwan Fixed Network CO.,LTD.	16,384
175.111.192.0/18	AS9505	International Business Group,	16,384

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
24.155.65.144	AS7459 Grande Communications Networks, LLC	`8.97ms` from Dallas, US
64.38.179.32	AS18530 Isomedia, Inc.	`0.32ms` from Indianapolis, US
202.51.70.160	AS18222 Data Hub Pvt. Ltd.	`0.76ms` from Kathmandu, NP
46.150.100.112	AS47235 Don Apex LLC	`8.42ms` from Krasnodar, RU
23.108.55.112	AS393886 Leaseweb USA, Inc.	`0.32ms` from Miami, US
13.126.182.112	AS16509 Amazon.com, Inc.	`0.14ms` from Mumbai, IN
222.8.85.48	AS2516 KDDI CORPORATION	`14.31ms` from Osaka, JP
27.207.145.144	AS4837 CHINA UNICOM China169 Backbone	`8.57ms` from Qingdao, CN
179.51.133.0	AS271205 MEGA FIBRA INFINITY LTDA	`1.64ms` from Sao Paulo, BR
123.140.99.96	AS3786 LG DACOM Corporation	`1.53ms` from Seoul, KR
13.251.96.128	AS16509 Amazon.com, Inc.	`0.10ms` from Singapore, SG
37.186.122.128	AS49800 GNC-Alfa CJSC	`0.53ms` from Yerevan, AM
52.81.95.80	AS55960 Beijing Guanghuan Xinwang Digital	`3.79ms` from Beijing, CN
78.20.212.208	AS6848 Telenet BV	`8.29ms` from Brussels, BE
64.236.116.32	AS8075 Microsoft Corporation	`0.34ms` from Des Moines, US
189.45.98.16	AS28270 Videomar Rede Nordeste S/A	`1.14ms` from Fortaleza, BR
116.2.77.208	AS4837 CHINA UNICOM China169 Backbone	`13.93ms` from Liaoyang, CN
81.132.10.240	AS2856 British Telecommunications PLC	`5.79ms` from London, GB
172.116.213.192	AS20001 Charter Communications Inc	`6.43ms` from Los Angeles, US
185.221.154.208	AS210079 EuroByte LLC	`0.76ms` from Moscow, RU
111.75.202.160	AS4134 CHINANET-BACKBONE	`0.59ms` from Nanchang, CN
218.73.42.80	AS4134 CHINANET-BACKBONE	`9.69ms` from Ningbo, CN
121.85.134.48	AS17511 OPTAGE Inc.	`1.69ms` from Osaka, JP
189.241.195.128	AS8151 UNINET	`3.75ms` from Santiago de Queretaro, MX
152.0.121.240	AS6400 Compañía Dominicana de Teléfonos S. A.	`2.82ms` from Santo Domingo, DO

Traceroute

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

traceroute -a -n -q1 -f4 -m18 175.187.65.1

traceroute to 175.187.65.1 (175.187.65.1): 18 hops max, 52 byte packets

4 [] 123.255.91.118 34.231 ms

5 [AS4538] 101.4.114.181 69.411 ms

6 *

7 *

8 *

9 [AS4538] 101.4.112.70 70.321 ms

10 *

11 [AS4538] 101.4.116.117 76.304 ms

12 [AS4538] 101.4.117.29 97.251 ms

13 [AS4538] 101.4.118.249 93.553 ms

14 *

15 [AS4538] 202.120.255.252 93.202 ms

16 *

17 *

18 *

Measurement taken from

IPinfo ProbeNet in Hong Kong, HK

On December 14th 2025

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