121.195.14.0/23

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:          121.195.0.0/16
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2009-01-05T03:10:57Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 121.195.14.0/23

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
190.14.147.87 AS264856 Support Internet 8.51ms from Buenos Aires, AR
40.176.51.231 AS16509 Amazon.com, Inc. 1.67ms from Calgary, CA
64.201.201.247 AS803 Saskatchewan Telecommunications 19.95ms from Des Moines, US
80.171.9.23 AS6805 Telefonica Germany GmbH & Co.OHG 3.18ms from Duesseldorf, DE
82.36.20.135 AS5089 Virgin Media Limited 14.42ms from London, GB
152.165.218.183 AS2527 Sony Network Communications Inc. 4.08ms from Osaka, JP
23.36.82.7 AS16625 Akamai Technologies, Inc. 0.25ms from Phoenix, US
192.169.20.87 AS30640 Etheric Networks, Inc. 0.46ms from San Jose, US
189.129.110.135 AS8151 UNINET 15.93ms from Santiago de Queretaro, MX
164.138.112.199 AS42925 Internet Rimon LTD 0.31ms from Tel Aviv, IL
197.3.187.231 AS37705 TOPNET 2.12ms from Tunis, TN
77.117.11.103 AS25255 ==> TELE2 AUSTRIA <== 9.68ms from Vienna, AT
31.149.69.39 AS1136 KPN B.V. 0.56ms from Amsterdam, NL
207.223.70.103 AS21808 Peerless Network Inc 0.36ms from Atlanta, US
104.179.18.247 AS7018 AT&T Enterprises, LLC 11.91ms from Atlanta, US
94.111.91.167 AS47377 Orange Belgium SA 12.25ms from Brussels, BE
174.105.36.183 AS10796 Charter Communications Inc 8.84ms from Columbus, US
95.138.221.199 AS39642 Norlys Digital A/S 3.27ms from Copenhagen, DK
41.83.237.247 AS8346 SONATEL-AS Autonomous System 3.81ms from Dakar, SN
221.200.212.55 AS4837 CHINA UNICOM China169 Backbone 8.80ms from Liaoyang, CN
107.142.187.167 AS7018 AT&T Enterprises, LLC 3.94ms from Miami, US
189.231.14.39 AS8151 UNINET 15.03ms from Phoenix, US
83.11.181.103 AS5617 Orange Polska Spolka Akcyjna 7.40ms from Poznan, PL
59.146.47.231 AS2527 Sony Network Communications Inc. 9.49ms from Tokyo, JP
38.41.97.247 AS53256 Mulberry Telecommunications 5.25ms from Chicago, US

Traceroute

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

$
traceroute -a -n -q1 -f6 -m13 121.195.15.146
traceroute to 121.195.15.146 (121.195.15.146): 13 hops max, 52 byte packets
6 [] 123.255.91.118 3.649 ms
7 [AS4538] 101.4.114.181 38.243 ms
8 *
9 [AS4538] 101.4.117.81 41.381 ms
10 [AS4538] 101.4.113.201 40.891 ms
11 *
12 *
13 *
Measurement taken from IPinfo ProbeNet in Hong Kong, HK
On

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