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:         [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:          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
175.0.0.0/12	AS63835	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	AS63838	CHINANET HUNAN PROVINCE NETWORK	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
175.112.0.0/12	AS9318	SK Broadband Co Ltd	1,048,576
175.208.0.0/13	AS4766	Korea Telecom	524,288
175.136.0.0/13	AS4788	TM TECHNOLOGY SERVICES SDN. BHD.	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
175.152.0.0/14	AS4837	China Unicom SiChuan province network	262,144
175.148.0.0/14	AS4837	CHINA UNICOM Liaoning province network	262,144
175.96.0.0/14	AS9924	Taiwan Fixed Network CO.,LTD.	262,144
175.96.0.0/14	AS131628	Taiwan Fixed Network CO.,LTD.	262,144
175.146.0.0/15	AS4837	CHINA UNICOM Liaoning province network	131,072
175.186.0.0/15	AS4538	China Education and Research 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
175.144.0.0/15	AS4788	TM TECHNOLOGY SERVICES SDN. BHD.	131,072
175.30.0.0/15	AS4134	CHINANET Jilin province network	131,072
175.137.0.0/16	AS4788	TMNST	65,536
175.27.0.0/16	AS45090	Tencent cloud computing (Beijing) Co., Ltd.	65,536
175.138.0.0/16	AS4788	TMNST	65,536
175.145.0.0/16	AS4788	TMNST	65,536
175.142.0.0/16	AS4788	TMNST	65,536
175.157.0.0/16	AS18001	Dialog Axiata PLC.	65,536
175.24.0.0/16	AS45090	Tencent cloud computing (Beijing) Co., Ltd.	65,536
175.136.0.0/16	AS4788	TMNST	65,536
175.25.0.0/16	AS56019	Beijing SHUJUJIA	65,536
175.141.0.0/16	AS4788	TMNST	65,536
175.139.0.0/16	AS4788	TMNST	65,536
175.140.0.0/16	AS4788	TMNST	65,536
175.156.0.0/16	AS4773	M1 LIMITED	65,536
175.178.0.0/16	AS45090	Tencent cloud computing (Beijing) Co., Ltd.	65,536
175.143.0.0/16	AS4788	TMNST	65,536
175.144.0.0/16	AS4788	TMNST	65,536
175.177.0.0/16	AS9365	its communications Inc.	65,536
175.185.0.0/16	AS4538	China Education and Research Network	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
175.106.128.0/17	AS4837	Zhongyuan Petroleum Explore Bureau Communication Company	32,768
175.176.0.0/17	AS10139	Smart Broadband Incorporated	32,768
175.100.0.0/17	AS38623	VIETTEL (CAMBODIA) PTE., LTD.	32,768
175.28.128.0/17	AS7679	QTnet,Inc.	32,768
175.110.128.0/17	AS25019	Saudi Telecom Company JSC	32,768
175.156.128.0/17	AS4773	M1 Ltd	32,768
175.179.128.0/17	AS2510	FUJITSU LIMITED	32,768
175.184.0.0/17	AS2510	FUJITSU LIMITED	32,768
175.107.128.0/18	AS22616	Zscaler Australia Pty Ltd	16,384
175.41.192.0/18	AS16509	11F Shibuya Cross Tower	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
136.58.60.224	AS16591 Google Fiber Inc.	`7.23ms` from Atlanta, US
52.81.95.80	AS55960 Beijing Guanghuan Xinwang Digital	`3.75ms` from Beijing, CN
52.38.243.240	AS16509 Amazon.com, Inc.	`0.13ms` from Boardman, US
167.19.108.144	AS22221 National General Management Corp.	`4.23ms` from Charlotte, US
24.175.219.0	AS11427 Charter Communications Inc	`18.50ms` from Houston, US
99.127.236.176	AS7018 AT&T Enterprises, LLC	`1.25ms` from Kansas City, US
90.173.3.112	AS12479 Orange Espagne SA	`1.56ms` from Madrid, ES
147.136.95.80	AS40676 Psychz Networks	`0.18ms` from Mumbai, IN
85.31.207.80	AS30781 Free Pro SAS	`0.41ms` from Paris, FR
4.229.83.192	AS8075 Microsoft Corporation	`0.18ms` from Quebec, CA
61.105.142.240	AS9318 SK Broadband Co Ltd	`1.47ms` from Seoul, KR
182.170.92.64	AS2527 Sony Network Communications Inc.	`6.81ms` from Tokyo, JP
52.34.96.16	AS16509 Amazon.com, Inc.	`0.13ms` from Boardman, US
89.136.167.176	AS12302 Vodafone Romania S.A.	`6.81ms` from Bucharest, RO
3.162.193.160	AS16509 Amazon.com, Inc.	`0.08ms` from Buenos Aires, AR
38.170.88.192	AS55286 B2 Net Solutions Inc.	`7.70ms` from Buffalo, US
54.220.1.208	AS16509 Amazon.com, Inc.	`0.18ms` from Dublin, IE
83.194.59.32	AS3215 Orange S.A.	`11.17ms` from Frankfurt am Main, DE
45.125.239.144	AS140832 Vietnam F Tech., JSC	`0.13ms` from Hanoi, VN
14.190.20.64	AS45899 VNPT Corp	`2.12ms` from Hanoi, VN
89.166.26.192	AS16086 DNA Oyj	`6.42ms` from Helsinki, FI
195.86.97.0	AS984 OCTOPUS WEB SOLUTION INC	`1.25ms` from Ho Chi Minh City, VN
39.49.60.0	AS17557 Pakistan Telecommunication Company Limited	`11.07ms` from Lahore, PK
83.35.60.0	AS3352 TELEFONICA DE ESPANA S.A.U.	`11.80ms` from Madrid, ES
179.111.7.96	AS27699 TELEFÔNICA BRASIL S.A	`3.72ms` from Osasco, BR

Traceroute

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

traceroute -a -n -q1 -f3 -m10 175.187.9.46

traceroute to 175.187.9.46 (175.187.9.46): 10 hops max, 52 byte packets

3 [] 203.144.97.117 6.111 ms

4 *

5 *

6 [] 123.255.91.118 2.269 ms

7 [AS4538] 101.4.114.181 36.977 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Hong Kong, HK

On December 6th 2025

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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