202.205.131.0/24

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Registry	APNIC
ID	BJR-CERNET

WHOIS Details

inetnum:        202.204.0.0 - 202.207.255.255
netname:        BJR-CERNET
descr:          China Education and Research Network
descr:          Beijing Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:26Z
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

Nearby Ranges

BGP prefixes that overlap with 202.205.0.0/16

No nearby ranges found.

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

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

IP Address	ASN	Details
202.205.131.12	AS4538 China Education and Research Network Center	`3.65ms` from Beijing, 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
129.159.97.152	AS31898 Oracle Corporation	`0.35ms` from Ashburn, US
70.106.16.40	AS701 Verizon Business	`7.89ms` from Ashburn, US
66.38.115.8	AS16433 NORTH CENTRAL TELEPHONE COOPERATIVE CORPORATION	`10.06ms` from Atlanta, US
186.154.83.104	AS19429 ETB - Colombia	`0.73ms` from Bogota, CO
157.181.199.200	AS2012 ELTENET	`1.36ms` from Budapest, HU
75.213.217.152	AS6167 Verizon Business	`19.75ms` from Chicago, US
144.48.122.8	AS9541 Cyber Internet Services (Pvt) Ltd.	`18.43ms` from Karachi, PK
66.27.118.136	AS20001 Charter Communications Inc	`6.80ms` from Los Angeles, US
167.100.224.56	AS25019 Saudi Telecom Company JSC	`4.05ms` from Manama, BH
34.49.76.8	AS396982 Google LLC	`0.07ms` from Melbourne, AU
78.192.157.120	AS12322 Free SAS	`1.33ms` from Paris, FR
52.91.183.216	AS14618 Amazon.com, Inc.	`0.24ms` from Reston, US
3.89.123.232	AS14618 Amazon.com, Inc.	`0.39ms` from Reston, US
84.32.49.232	AS214159 UAB Cherry Servers	`0.30ms` from Stockholm, SE
36.235.216.40	AS3462 Data Communication Business Group	`1.51ms` from Taichung, TW
124.102.103.248	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.03ms` from Tokyo, JP
130.33.216.8	AS8075 Microsoft Corporation	`0.15ms` from Tokyo, JP
41.182.166.168	AS36996 Telecom Namibia	`16.44ms` from Windhoek, NA
190.74.20.248	AS8048 CANTV Servicios, Venezuela	`2.48ms` from Caracas, VE
73.78.185.136	AS7922 Comcast Cable Communications, LLC	`3.21ms` from Denver, US
217.183.105.232	AS5466 Eircom Limited	`4.63ms` from Dublin, IE
82.43.102.200	AS5089 Virgin Media Limited	`5.41ms` from Erith, GB
65.62.210.40	AS8011 MongoDB, Inc.	`0.10ms` from Frankfurt am Main, DE
115.136.13.8	AS17858 LG POWERCOMM	`1.61ms` from Incheon, KR
196.23.134.104	AS3741 Dimension Data	`0.87ms` from Johannesburg, ZA

Traceroute

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

traceroute -a -n -q1 -f6 202.205.131.12

traceroute to 202.205.131.12 (202.205.131.12): 64 hops max, 52 byte packets

6 [AS4538] 101.4.130.101 4.274 ms

7 *

8 *

9 [AS4538] 101.4.116.94 5.48 ms

10 *

11 [AS4538] 202.112.41.181 3.896 ms

12 *

13 [AS4538] 162.105.252.234 5.559 ms

14 *

15 [AS4538] 202.205.131.12 4.33 ms

Measurement taken from

IPinfo ProbeNet in Beijing, CN

On February 16th 2026

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