125.221.2.0/23

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 125.216.0.0/13
Registry APNIC
ID WHR-CERNET

WHOIS Details

inetnum:        125.220.0.0 - 125.221.255.255
netname:        WHR-CERNET
descr:          China Education and Research Network
descr:          Wuhan 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:         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 2025-01-22
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-01-22T13:47:43Z
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:         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 2025-01-22
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-01-22T16:25:45Z
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:         helpdesk@cernet.edu.cn
remarks:        abuse@cernet.edu.cn
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:          125.221.0.0/16
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2009-01-05T03:10:57Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 125.221.2.0/23

Range ASN Company Num of IPs
125.216.0.0/13 AS4538 China Education and Research Network 524,288

Nearby Ranges

BGP prefixes that overlap with 125.221.0.0/16

Range ASN Company Num of IPs
125.216.0.0/13 AS4538 China Education and Research Network 524,288
125.221.160.0/19 AS4538 China Education and Research Network 8,192
125.221.64.0/19 AS4538 China Education and Research Network 8,192
125.221.96.0/20 AS4538 China Education and Research Network 4,096
125.221.224.0/20 AS4538 China Education and Research Network 4,096
125.221.192.0/20 AS4538 China Education and Research Network 4,096
125.221.48.0/20 AS4538 China Education and Research Network 4,096
125.221.112.0/20 AS4538 China Education and Research Network 4,096
125.221.32.0/21 AS4538 China Education and Research Network 2,048
125.221.208.0/21 AS4538 China Education and Research Network 2,048
125.221.192.0/21 AS4538 China Education and Research Network 2,048
125.221.128.0/22 AS4538 China Education and Research Network 1,024
125.221.16.0/22 AS4538 China Education and Research Network 1,024
125.221.242.0/23 AS4538 China Education and Research Network 512
125.221.8.0/23 AS4538 China Education and Research Network 512
125.221.216.0/23 AS4538 China Education and Research Network 512
125.221.244.0/23 AS4538 China Education and Research Network 512
125.221.240.0/23 AS4538 China Education and Research Network 512
125.221.10.0/23 AS4538 China Education and Research Network 512
125.221.40.0/23 AS4538 China Education and Research Network 512
125.221.250.0/23 AS4538 China Education and Research Network 512
125.221.30.0/23 AS4538 China Education and Research Network 512
125.221.252.0/23 AS4538 China Education and Research Network 512
125.221.4.0/23 AS4538 China Education and Research Network 512
125.221.218.0/23 AS4538 China Education and Research Network 512
125.221.220.0/23 AS4538 China Education and Research Network 512
125.221.254.0/23 AS4538 China Education and Research Network 512
125.221.248.0/23 AS4538 China Education and Research Network 512
125.221.42.0/23 AS4538 China Education and Research Network 512
125.221.200.0/23 AS4538 China Education and Research Network 512
125.221.12.0/23 AS4538 China Education and Research Network 512
125.221.14.0/23 AS4538 China Education and Research Network 512
125.221.44.0/23 AS4538 China Education and Research Network 512
125.221.20.0/24 AS4538 China Education and Research Network 256
125.221.40.0/24 AS4538 China Education and Research Network 256
125.221.21.0/24 AS4538 China Education and Research Network 256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Pingable IPs

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

IP Address ASN Details
125.221.2.37 AS4538 China Education and Research Network Center 17.29ms from Guangzhou, 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
68.10.195.23 AS22773 Cox Communications Inc. 9.22ms from Ashburn, US
98.240.0.183 AS7922 Comcast Cable Communications, LLC 13.64ms from Atlanta, US
195.47.229.55 AS24679 kyberio GmbH 4.45ms from Berlin, DE
109.125.107.55 AS35244 Tele Columbus AG 16.50ms from Frankfurt am Main, DE
39.104.229.199 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 0.20ms from Hohhot, CN
217.206.155.23 AS3257 GTT Communications Inc. 0.72ms from London, GB
149.107.111.39 AS41354 ITS Technology Group Limited 0.40ms from London, GB
179.25.23.39 AS6057 Administracion Nacional de Telecomunicaciones 3.49ms from Montevideo, UY
89.189.185.103 AS34757 Sibirskie Seti Ltd. 0.92ms from Novosibirsk, RU
216.150.66.39 AS15149 Core Technology Services, Inc. 1.01ms from Piscataway, US
193.150.245.183 AS1257 Tele2 Sverige AB 6.32ms from Stockholm, SE
123.112.228.23 AS4808 China Unicom Beijing Province Network 3.69ms from Tianjin, CN
126.78.214.183 AS17676 SoftBank Corp. 2.77ms from Tokyo, JP
150.246.45.215 AS2527 Sony Network Communications Inc. 1.98ms from Tokyo, JP
125.12.107.167 AS9824 JCOM Co., Ltd. 10.56ms from Tokyo, JP
47.89.172.103 AS45102 Alibaba (US) Technology Co., Ltd. 0.27ms from Ashburn, US
69.132.223.247 AS11426 Charter Communications Inc 16.45ms from Charlotte, US
79.225.79.103 AS3320 Deutsche Telekom AG 8.59ms from Frankfurt am Main, DE
5.61.203.247 AS198885 Spotting Brands Technologies S.L 13.77ms from Madrid, ES
202.137.234.23 AS38224 Rediff.com India Limited, 1.01ms from Mumbai, IN
88.94.41.103 AS2119 Telenor Norge AS 10.99ms from Oslo, NO
211.178.31.71 AS9318 SK Broadband Co Ltd 0.99ms from Seoul, KR
88.204.45.119 AS48031 XServerCloud 0.46ms from Sofia, BG
110.0.86.215 AS10013 FreeBit Co.,Ltd. 2.66ms from Tokyo, JP
153.186.204.23 AS4713 NTT Communications Corporation 7.61ms from Tokyo, JP

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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