AS4538 - This aut-num object created as part of
Detailed information about the Autonomous System AS4538:
IPv4 Prefixes
Currently, there are 4917 IPv4 prefixes for AS4538 - This aut-num object created as part of in
the database.
This amounts to 38,579,200 IPv4 addresses that are hosted on this ASN. The following list shows the first 25 IPv4 prefixes of the ASN. To obtain all prefixes, please purchase the full database
1.51.0.0/16
1.51.0.0/17
1.51.3.0/24
1.51.16.0/20
1.51.112.0/24
1.51.120.0/21
1.51.128.0/17
1.51.144.0/20
1.51.160.0/21
1.51.168.0/21
1.51.176.0/20
1.51.192.0/18
1.184.0.0/15
1.184.192.0/18
1.185.0.0/18
1.185.64.0/19
1.185.192.0/18
42.244.0.0/16
42.244.0.0/17
42.244.0.0/18
42.244.13.0/24
42.244.64.0/20
42.244.128.0/17
42.245.0.0/16
42.245.0.0/17
IPv6 Prefixes
Currently, there are 1666 IPv6 prefixes for AS4538 - This aut-num object created as part of in
the database.
This amounts to 4,855,656,599,111,256,000,000,000,000,000 IPv6 addresses that are hosted on this ASN. The following list shows the first 25 IPv6 prefixes of the ASN. To obtain all prefixes, please purchase the full database
2001:250:2::/48
2001:250:205::/48
2001:250:206::/48
2001:250:207::/48
2001:250:208::/48
2001:250:209::/48
2001:250:20a::/48
2001:250:20b::/48
2001:250:20c::/48
2001:250:20f::/48
2001:250:210::/48
2001:250:212::/48
2001:250:214::/48
2001:250:215::/48
2001:250:218::/48
2001:250:219::/48
2001:250:21a::/48
2001:250:21b::/48
2001:250:21e::/48
2001:250:21f::/48
2001:250:223::/48
2001:250:228::/48
2001:250:22b::/48
2001:250:22d::/48
2001:250:22e::/48
Raw WHOIS Record - AS4538 - This aut-num object created as part of
aut-num: AS4538
as-name: ERX-CERNET-BKB
descr: China Education and Research Network Center
descr: Tsinghua University
descr: Beijing 100084
country: CN
remarks: This aut-num object created as part of
remarks: the ER-Transfer from ARIN
admin-c: JW410-AP
tech-c: JW410-AP
abuse-c: AC1685-AP
mnt-lower: MAINT-CERNET-AP
mnt-routes: MAINT-CERNET-AP
mnt-by: APNIC-HM
mnt-irt: IRT-CERNET-AP
last-modified: 2020-09-03T09:16:15Z
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 2024-07-04
mnt-by: MAINT-CERNET-AP
last-modified: 2024-07-04T04:10:10Z
source: APNIC
role: ABUSE CERNETAP
address: Network Research Center,
address: Main Bldg, Tsinghua Univ
address: Beijing 100084, China
country: ZZ
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 2024-07-04
abuse-mailbox: abuse@cernet.edu.cn
mnt-by: APNIC-ABUSE
last-modified: 2024-07-04T04:10:19Z
source: APNIC
person: Jianping Wu
address: China Education and Research Network Center
address: Tsinghua University
address: Beijing 100084
country: CN
phone: +86-10-2595931
e-mail: jianping@CERNET.EDU.CN
nic-hdl: JW410-AP
remarks: This person object created as part of the ER-Transfer from ARIN
mnt-by: MAINT-CN-CERNET
last-modified: 2008-09-04T07:29:20Z
source: APNIC