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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS24353
Registry	APNIC
ID	CERNET-CN-20000426

WHOIS Details

inet6num:       2001:250::/32
netname:        CERNET-CN-20000426
descr:          CERNET IPv6 Backbone
country:        CN
admin-c:        WJ67-AP
tech-c:         LX58-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
notify:         xing@cernet.edu.cn
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-10-20T00:55:16Z
source:         APNIC

irt:            IRT-CERNET-AP
address:        Network Center,
address:        FIT-3-220, 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:        abuse@cernet.edu.cn was validated on 2026-03-05
mnt-by:         MAINT-CERNET-AP
last-modified:  2026-03-05T06:39:56Z
source:         APNIC

role:           ABUSE CERNETAP
country:        ZZ
address:        Network Center,
address:        FIT-3-220, 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 2026-03-05
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2026-03-05T06:40:20Z
source:         APNIC

person:         Li Xing
address:        China Education and Research Network
address:        China Education and Research Network Center
address:        Tsinghua University
address:        Beijing, 100084
address:        CN
country:        CN
phone:          +86-10-6278-5983
fax-no:         +86-10-6278-5933
e-mail:         xing@cernet.edu.cn
nic-hdl:        LX58-AP
notify:         address-allocation-staff@net.edu.cn
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:14:50Z
source:         APNIC

person:         Wu Jianping
address:        China Education and Research Network
address:        China Education and Research Network Center
address:        Tsinghua University
address:        Beijing, 100084
address:        CN
country:        CN
phone:          +86-10-6278-5983
fax-no:         +86-10-6278-5933
e-mail:         jianping@cernet.edu.cn
nic-hdl:        WJ67-AP
notify:         address-allocation-staff@net.edu.cn
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:14:50Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 2001:250:102f::/48

No nearby ranges found.

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

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
82.204.45.80	AS15670 Odido Netherlands B.V.	`2.01ms` from Amsterdam, NL
79.235.240.192	AS3320 Deutsche Telekom AG	`2.11ms` from Berlin, DE
122.139.50.0	AS4837 CHINA UNICOM China169 Backbone	`1.63ms` from Changchun, CN
217.230.248.16	AS3320 Deutsche Telekom AG	`6.67ms` from Duesseldorf, DE
96.41.50.144	AS20115 Charter Communications LLC	`5.88ms` from Los Angeles, US
90.71.39.176	AS12479 Orange Espagne SA	`10.22ms` from Madrid, ES
154.194.68.0	AS63139 BEDGE CO LIMITED	`0.12ms` from Muscat, OM
89.92.4.96	AS5410 Bouygues Telecom SA	`1.65ms` from Paris, FR
54.236.25.96	AS14618 Amazon.com, Inc.	`0.57ms` from Reston, US
2.21.85.208	AS16625 Akamai Technologies, Inc.	`0.64ms` from Rio de Janeiro, BR
200.83.117.16	AS22047 VTR BANDA ANCHA S.A.	`10.53ms` from Santiago, CL
186.238.11.96	AS10429 TELEFÔNICA BRASIL S.A	`0.86ms` from Sao Paulo, BR
207.196.171.112	AS3807 University of Montana	`11.72ms` from Seattle, US
64.231.46.240	AS577 Bell Canada	`6.12ms` from Toronto, CA
94.71.200.96	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`11.48ms` from Athens, GR
195.63.26.112	AS200373 3xK Tech GmbH	`0.37ms` from Berlin, DE
52.12.82.0	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
73.143.55.160	AS7922 Comcast Cable Communications, LLC	`10.70ms` from Boston, US
97.147.152.0	AS6167 Verizon Business	`14.30ms` from Chicago, US
34.71.55.176	AS396982 Google LLC	`0.13ms` from Council Bluffs, US
110.41.202.208	AS55990 Huawei Cloud Service data center	`2.22ms` from Guangzhou, CN
79.235.45.112	AS3320 Deutsche Telekom AG	`3.82ms` from Hamburg, DE
211.222.4.64	AS4766 Korea Telecom	`0.72ms` from Incheon, KR
200.238.85.128	AS10938 AGENCIA ESTADUAL DE TECNOLOGIA DA INFORMACAO - ATI	`3.17ms` from Joao Pessoa, BR
219.216.103.208	AS4538 China Education and Research Network Center	`2.88ms` from Liaoyang, CN

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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