49.52.64.0/19

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	49.52.0.0/14
Registry	APNIC
ID	SHR-CERNET

WHOIS Details

inetnum:        49.52.0.0 - 49.55.255.255
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:        origin AS4538
remarks:        confederation
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:22Z
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:  2025-09-04T00:59:41Z
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:          49.52.0.0/14
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2010-10-11T04:04:01Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 49.52.64.0/19

Range	ASN	Company	Num of IPs
49.52.0.0/14	AS4538	China Education and Research Network	262,144

Nearby Ranges

BGP prefixes that overlap with 49.52.0.0/16

Range	ASN	Company	Num of IPs
49.52.0.0/14	AS4538	China Education and Research Network	262,144

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

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

IP Address	ASN	Details
49.52.95.1	AS4538 China Education and Research Network Center	`2.06ms` 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
86.83.186.179	AS1136 KPN B.V.	`2.69ms` from Amsterdam, NL
194.61.1.3	AS328972 Geidea Technology	`2.61ms` from Cairo, EG
170.252.219.3	AS3573 Accenture LLP	`2.10ms` from Delhi, IN
154.23.36.51	AS139646 HONG KONG LIGHTLAYER TECHNOLOGY CO., LIMITED	`1.82ms` from Hong Kong, HK
50.115.236.3	AS20264 Webair Internet Development Company Inc.	`0.30ms` from Los Angeles, US
96.225.37.51	AS701 Verizon Business	`2.20ms` from New York City, US
142.134.239.179	AS855 Bell Canada	`17.88ms` from New York City, US
118.104.41.131	AS18126 Chubu Telecommunications Company, Inc.	`6.04ms` from Osaka, JP
89.92.220.3	AS5410 Bouygues Telecom SA	`13.63ms` from Paris, FR
132.255.53.99	AS264462 Comercial Conecte Sem Fio Ltda me	`3.12ms` from Sao Paulo, BR
121.163.126.99	AS4766 Korea Telecom	`1.56ms` from Seoul, KR
218.52.66.3	AS9318 SK Broadband Co Ltd	`1.67ms` from Seoul, KR
60.50.187.227	AS4788 TM TECHNOLOGY SERVICES SDN. BHD.	`4.27ms` from Sepang, MY
220.133.172.19	AS3462 Data Communication Business Group	`1.50ms` from Taichung, TW
219.118.212.35	AS55388 ASJ INC.	`1.54ms` from Tokyo, JP
103.53.82.211	AS136787 PacketHub S.A.	`0.14ms` from Toronto, CA
1.84.178.51	AS4134 CHINANET-BACKBONE	`7.82ms` from Xi'an, CN
3.168.219.99	AS16509 Amazon.com, Inc.	`0.34ms` from Berlin, DE
161.47.23.3	AS19994 Rackspace Hosting	`1.36ms` from Chicago, US
12.213.8.51	AS7018 AT&T Enterprises, LLC	`1.10ms` from Dallas, US
84.155.170.115	AS3320 Deutsche Telekom AG	`5.33ms` from Frankfurt am Main, DE
217.85.161.211	AS3320 Deutsche Telekom AG	`5.13ms` from Frankfurt am Main, DE
76.31.108.179	AS7922 Comcast Cable Communications, LLC	`4.83ms` from Houston, US
86.169.241.3	AS2856 British Telecommunications PLC	`3.83ms` from London, GB
187.250.251.211	AS8151 UNINET	`3.71ms` from Los Angeles, US

Traceroute

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

traceroute -a -n -q1 -f5 -m15 49.52.81.140

traceroute to 49.52.81.140 (49.52.81.140): 15 hops max, 52 byte packets

5 [AS2497] 202.232.1.158 17.901 ms

6 [AS4837] 219.158.24.57 51.373 ms

7 *

8 *

9 [AS4837] 219.158.113.174 48.093 ms

10 [AS48589] 211.102.30.15 51.92 ms

11 [AS4538] 101.4.117.193 58.151 ms

12 [AS4538] 101.4.118.114 51.654 ms

13 *

14 *

15 *

Measurement taken from

IPinfo ProbeNet in Nagano, JP

On October 9th 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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