121.195.32.0/19

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 121.194.0.0/15
Registry APNIC
ID BJR-CERNET

WHOIS Details

inetnum:        121.194.0.0 - 121.195.255.255
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
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:         [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:          121.194.0.0/16
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2009-01-05T03:10:57Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 121.195.32.0/19

Range ASN Company Num of IPs
121.194.0.0/15 AS4538 China Education and Research Network 131,072

Nearby Ranges

BGP prefixes that overlap with 121.195.0.0/16

Range ASN Company Num of IPs
121.194.0.0/15 AS4538 China Education and Research Network 131,072

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

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
223.185.107.147 AS45609 Bharti Airtel Ltd. AS for GPRS Service 6.54ms from Chennai, IN
106.214.200.67 AS24560 Bharti Airtel Ltd., Telemedia Services 10.05ms from Delhi, IN
34.245.75.3 AS16509 Amazon.com, Inc. 0.60ms from Dublin, IE
92.26.207.67 AS13285 TalkTalk Communications Limited 5.94ms from London, GB
23.215.135.99 AS16625 Akamai Technologies, Inc. 0.41ms from London, GB
88.22.15.227 AS3352 TELEFONICA DE ESPANA S.A.U. 5.84ms from Madrid, ES
87.180.182.3 AS3320 Deutsche Telekom AG 6.59ms from Nuernberg, DE
179.144.164.35 AS26599 TELEFÔNICA BRASIL S.A 6.27ms from Rio de Janeiro, BR
1.211.99.211 AS3786 LG DACOM Corporation 1.65ms from Seoul, KR
126.117.54.115 AS17676 SoftBank Corp. 3.26ms from Tokyo, JP
203.180.76.83 AS2497 Internet Initiative Japan Inc. 14.25ms from Tokyo, JP
151.248.149.179 AS8821 WWZ Telekom AG (TELEZUG) 7.26ms from Zuerich, CH
110.143.99.115 AS1221 Telstra Limited 2.66ms from Brisbane, AU
181.1.36.19 AS7303 Telecom Argentina S.A. 12.31ms from Buenos Aires, AR
104.10.97.211 AS7018 AT&T Enterprises, LLC 2.85ms from Dallas, US
91.40.167.19 AS3320 Deutsche Telekom AG 3.92ms from Duesseldorf, DE
98.184.137.3 AS22773 Cox Communications Inc. 5.41ms from Kansas City, US
177.201.159.195 AS8167 V tal 3.86ms from Novo Hamburgo, BR
27.192.246.147 AS4837 CHINA UNICOM China169 Backbone 5.59ms from Qingdao, CN
46.250.214.147 AS28824 EMP SECURE AS 8.89ms from Sandefjord, NO
104.199.34.35 AS396982 Google LLC 0.15ms from Brussels, BE
193.121.188.195 AS5432 Proximus NV 2.55ms from Brussels, BE
99.133.157.3 AS7018 AT&T Enterprises, LLC 16.13ms from Chicago, US
3.128.2.99 AS16509 Amazon.com, Inc. 0.17ms from Columbus, US
12.204.253.163 AS7018 AT&T Enterprises, LLC 3.52ms from Columbus, 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 -m16 121.195.49.25
traceroute to 121.195.49.25 (121.195.49.25): 16 hops max, 52 byte packets
5 [AS4134] 81.173.23.5 53.391 ms
6 [AS4134] 202.97.83.161 250.666 ms
7 *
8 [AS4134] 202.97.61.165 269.589 ms
9 *
10 *
11 *
12 [AS4538] 101.4.115.146 265.073 ms
13 [AS4538] 101.4.112.98 268.651 ms
14 *
15 *
16 *
Measurement taken from IPinfo ProbeNet in Cairo, EG
On

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