49.52.32.0/20

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:  2025-11-18T00:26:28Z
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:          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 49.52.32.0/20

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

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

Read more

Pingable IPs

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

IP Address	ASN	Details
49.52.47.132	AS4538 China Education and Research Network Center	`2.34ms` 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
174.173.102.244	AS7922 Comcast Cable Communications, LLC	`4.80ms` from Ashburn, US
102.219.83.4	AS328845 The Governing Body of College of Business Education	`1.33ms` from Dar es Salaam, TZ
91.54.133.20	AS3320 Deutsche Telekom AG	`1.79ms` from Frankfurt am Main, DE
70.139.254.20	AS7018 AT&T Enterprises, LLC	`2.77ms` from Houston, US
31.140.198.244	AS16135 Turkcell A.S.	`14.75ms` from Izmir, TR
47.200.130.36	AS5650 Frontier Communications of America, Inc.	`7.35ms` from Miami, US
54.210.185.84	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
4.157.162.180	AS8075 Microsoft Corporation	`0.43ms` from Ashburn, US
67.235.254.212	AS209 CenturyLink Communications, LLC	`16.82ms` from Atlanta, US
71.56.106.180	AS7922 Comcast Cable Communications, LLC	`5.21ms` from Atlanta, US
220.170.160.68	AS4134 CHINANET-BACKBONE	`2.20ms` from Changsha, CN
52.19.75.52	AS16509 Amazon.com, Inc.	`0.17ms` from Dublin, IE
76.143.76.148	AS7922 Comcast Cable Communications, LLC	`8.13ms` from Houston, US
39.52.157.180	AS17557 Pakistan Telecommunication Company Limited	`16.91ms` from Lahore, PK
47.147.26.68	AS5650 Frontier Communications of America, Inc.	`2.12ms` from Los Angeles, US
6.14.229.244	AS668 United States Department of Defense (DoD)	`1.70ms` from Los Angeles, US
100.4.140.84	AS701 Verizon Business	`12.09ms` from New York City, US
101.175.164.68	AS1221 Telstra Limited	`7.51ms` from Perth, AU
73.37.70.148	AS7922 Comcast Cable Communications, LLC	`6.05ms` from Portland, US
54.237.31.36	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
187.67.192.212	AS28573 Claro NXT Telecomunicacoes Ltda	`5.58ms` from Rio de Janeiro, BR
20.64.82.52	AS8075 Microsoft Corporation	`0.27ms` from San Antonio, US
101.85.79.68	AS4812 China Telecom (Group)	`2.76ms` from Shanghai, CN
42.85.23.148	AS4837 CHINA UNICOM China169 Backbone	`3.18ms` from Tieling, CN
126.218.14.20	AS17676 SoftBank Corp.	`3.04ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -m10 49.52.47.218

traceroute to 49.52.47.218 (49.52.47.218): 10 hops max, 52 byte packets

1 [AS215813] 179.61.190.1 0.202 ms

2 [AS15830] 85.233.197.9 0.338 ms

3 [] 81.201.103.107 0.638 ms

4 *

5 *

6 *

7 [AS4538] 101.4.114.181 215.244 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Aubervilliers, FR

On January 9th 2026

What are IP address ranges?

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