125.221.250.0/23

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 125.221.250.0/23

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
125.221.30.0/23 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
125.221.2.0/23 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

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
152.136.194.87 AS45090 Shenzhen Tencent Computer Systems Company Limited 2.21ms from Beijing, CN
44.237.38.215 AS16509 Amazon.com, Inc. 0.17ms from Boardman, US
8.37.27.7 AS11769 RJ Schinner Co 3.44ms from Chicago, US
109.172.81.7 AS63023 GTHost 0.10ms from Dallas, US
84.161.164.55 AS3320 Deutsche Telekom AG 6.50ms from Frankfurt am Main, DE
77.179.167.151 AS6805 Telefonica Germany GmbH & Co.OHG 3.52ms from Frankfurt am Main, DE
149.109.81.135 AS25019 Saudi Telecom Company JSC 5.85ms from Jeddah, SA
5.139.15.55 AS12389 PJSC Rostelecom 10.48ms from Krasnodar, RU
82.159.68.135 AS6739 VODAFONE ONO, S.A. 15.58ms from Madrid, ES
93.84.91.71 AS6697 Republican Unitary Telecommunication Enterprise Beltelecom 4.92ms from Minsk, BY
45.171.148.215 AS52892 COPREL TELECOM LTDA 14.08ms from Porto Alegre, BR
83.27.82.87 AS5617 Orange Polska Spolka Akcyjna 7.22ms from Warsaw, PL
3.167.91.23 AS16509 Amazon.com, Inc. 0.69ms from Ashburn, US
202.183.229.135 AS4750 CS LOXINFO PUBLIC COMPANY LIMITED 2.98ms from Bangkok, TH
80.128.14.7 AS3320 Deutsche Telekom AG 1.60ms from Berlin, DE
71.234.162.247 AS7922 Comcast Cable Communications, LLC 10.65ms from Boston, US
200.34.226.199 AS28343 UNIFIQUE TELECOMUNICACOES S/A 11.54ms from Curitiba, BR
151.106.168.39 AS31898 Oracle Corporation 2.91ms from Draper, US
117.21.74.7 AS4134 CHINANET-BACKBONE 0.50ms from Nanchang, CN
207.248.11.23 AS271302 MIXNET TELECOMUNICACOES LTDA 9.34ms from Osasco, BR
179.108.195.7 AS262691 CONECTA LTDA. 11.50ms from Sao Paulo, BR
70.98.241.135 AS7385 Allstream Business US, LLC 5.31ms from Seattle, US
175.233.182.199 AS4766 Korea Telecom 2.35ms from Seoul, KR
58.141.235.215 AS7562 HCN Dongjak 0.79ms from Seoul, KR
107.13.138.71 AS11426 Charter Communications Inc 8.81ms from Ashburn, 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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