IP range details

2001:250:4031::/48

AS24358  ·  CERNET2 IX at Huazhong University of Science and Technology

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Summary

Country China
Domain cernet.edu.cn
ASN AS24358
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 2001:250:4031::/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

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
20.25.89.192 AS8075 Microsoft Corporation 0.43ms from Ashburn, US
211.159.167.144 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.71ms from Beijing, CN
117.242.162.240 AS9829 National Internet Backbone 5.76ms from Bengaluru, IN
3.66.33.224 AS16509 Amazon.com, Inc. 0.14ms from Frankfurt am Main, DE
131.246.150.144 AS199578 Rheinland-Pfaelzische Technische Universitaet Kaiserslautern-Landau 3.48ms from Frankfurt am Main, DE
113.252.176.160 AS9304 HGC Global Communications Limited 1.63ms from Hong Kong, HK
87.8.170.96 AS3269 Telecom Italia S.p.A. 3.75ms from Milan, IT
184.152.220.160 AS12271 Charter Communications Inc 3.84ms from New York City, US
49.251.49.32 AS9617 JCOM Co., Ltd. 10.94ms from Osaka, JP
34.204.121.32 AS14618 Amazon.com, Inc. 0.23ms from Reston, US
152.167.17.0 AS28118 ALTICE DOMINICANA S.A. 5.42ms from Santo Domingo, DO
106.104.176.0 AS4780 Digital United Inc. 3.00ms from Taipei, TW
99.248.189.0 AS812 Rogers Communications Canada Inc. 4.86ms from Toronto, CA
178.191.171.96 AS8447 A1 Telekom Austria AG 0.82ms from Vienna, AT
44.227.84.16 AS16509 Amazon.com, Inc. 0.18ms from Boardman, US
91.50.8.192 AS3320 Deutsche Telekom AG 2.58ms from Düsseldorf, DE
195.87.144.80 AS15924 Vodafone Net Iletisim Hizmetler AS 2.35ms from Istanbul, TR
178.158.64.176 AS30822 Dubrovskaya Nataliya Vladislavovna 14.88ms from Moscow, RU
213.57.90.96 AS12849 Hot-Net internet services Ltd. 0.27ms from Petaẖ Tiqva, IL
166.161.142.192 AS6167 Verizon Business 10.98ms from Santa Clara, US
46.145.238.112 AS1136 KPN B.V. 3.12ms from Amsterdam, NL
82.180.107.112 AS51978 WEMACOM Telekommunikation GmbH 8.63ms from Amsterdam, NL
170.9.192.0 AS31898 Oracle Corporation 0.39ms from Ashburn, US
209.2.64.96 AS7029 Windstream Communications LLC 0.46ms from Atlanta, US
111.206.94.240 AS4808 China Unicom Beijing Province Network 2.57ms from Beijing, 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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