IP range details

2001:250:504d::/48

AS24361  ·  CERNET2 IX at Southeast University

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Summary

Country China
Domain cernet.edu.cn
ASN AS24361
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 2001:250:504d::/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

Pingable IPs

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

IP Address ASN Details
2001:250:504d:1816::1821 AS24361 CERNET2 IX at Southeast University 16.92ms from Hangzhou, 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
118.89.239.144 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.94ms from Beijing, CN
92.116.232.80 AS8881 1&1 Versatel GmbH 4.77ms from Berlin, DE
190.225.230.0 AS7303 Telecom Argentina S.A. 1.52ms from Buenos Aires, AR
78.168.127.112 AS9121 Turk Telekomunikasyon Anonim Sirketi 13.64ms from Bursa, TR
111.8.40.16 AS56047 China Mobile communications corporation 2.94ms from Changsha, CN
175.6.115.64 AS63835 CT-HuNan-Changsha-IDC 0.31ms from Changsha, CN
70.189.55.16 AS22773 Cox Communications Inc. 13.14ms from Dallas, US
185.232.102.96 AS205112 PHILUNET GmbH 3.13ms from Frankfurt am Main, DE
61.101.102.96 AS9318 SK Broadband Co Ltd 1.44ms from Incheon, KR
182.90.93.160 AS4837 CHINA UNICOM China169 Backbone 8.13ms from Liuzhou, CN
185.185.64.16 AS206496 TDA COMUNICACIONES CONNECTIONS SLU 7.37ms from Madrid, ES
125.209.181.160 AS7545 TPG Telecom Limited 2.38ms from Melbourne, AU
115.234.1.0 AS4134 CHINANET-BACKBONE 10.20ms from Ningbo, CN
88.173.167.32 AS12322 Free SAS 2.71ms from Paris, FR
98.232.250.0 AS7922 Comcast Cable Communications, LLC 2.55ms from Portland, US
90.108.110.32 AS3215 Orange S.A. 6.24ms from Saint-Denis, FR
101.25.110.144 AS4837 CHINA UNICOM China169 Backbone 6.80ms from Beijing, CN
34.41.207.208 AS396982 Google LLC 0.13ms from Council Bluffs, US
65.40.215.0 AS19901 Brightspeed 7.03ms from Dallas, US
16.162.247.0 AS16509 Amazon.com, Inc. 0.08ms from Hong Kong, HK
109.154.64.48 AS2856 British Telecommunications PLC 1.65ms from London, GB
108.207.40.0 AS7018 AT&T Enterprises, LLC 0.62ms from Los Angeles, US
174.85.153.208 AS20115 Charter Communications LLC 16.14ms from Murfreesboro, US
68.173.184.0 AS12271 Charter Communications Inc 3.75ms from New York City, US
104.229.106.176 AS11351 Charter Communications Inc 18.11ms from Secaucus, US

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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