210.40.128.0/19

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 210.32.0.0/12
Registry APNIC
ID CERNET-CN

WHOIS Details

inetnum:        210.40.0.0 - 210.47.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          China Education and Research Network Center
descr:          Tsinghua University
descr:          Beijing, 100084
country:        CN
admin-c:        JW1-CN
tech-c:         XL1-CN
tech-c:         LZ1-CN
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        NS2.NET.EDU.CN
remarks:        DNS.EDU.CN
remarks:        CDNET52.CDNET.EDU.CN
remarks:        CDNET61.CDNET.EDU.CN
remarks:        DNS.WHNET.EDU.CN
remarks:        DNS.XANET.EDU.CN
remarks:        MARS.SHNET.EDU.CN
remarks:        MAVERICK.SYNET.EDU.CN
remarks:        NS1.NJNET.EDU.CN
remarks:        NS2.NJNET.EDU.CN
remarks:        ORANGE.GZNET.EDU.CN
remarks:        PINEAPPLE.GZNET.EDU.CN
remarks:        SAINT.SYNET.EDU.CN
remarks:        SUN200.WHNET.EDU.CN
remarks:        VENUS.SHNET.EDU.CN
remarks:        XANOC.XANET.EDU.CN
remarks:        service provider
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-10-20T00:56:43Z
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

person:         Jianping Wu
address:        China Education and Research Network Center
address:        Room 225, Main Building, 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:        JW1-CN
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:14:25Z
source:         APNIC

person:         Ling Zhang
address:        Network Center
address:        South China University of Technology
address:        Guangzhou, Guangdong 510641, China
address:        CN
country:        CN
phone:          +86-20-87110596
fax-no:         +86-20-87110019
e-mail:         ling@scut.edu.cn
nic-hdl:        LZ1-CN
notify:         dbmon@apnic.net
mnt-by:         MAINT-NULL
last-modified:  2011-12-22T05:14:25Z
source:         APNIC

person:         Xing Li
address:        China Education and Research Network Center
address:        Room 225, Main Building, 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:        XL1-CN
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:14:25Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 210.40.128.0/19

Range ASN Company Num of IPs
210.32.0.0/12 AS4538 China Education and Research Network 1,048,576

BGP prefixes that are contained by 210.40.128.0/19

Range ASN Company Num of IPs
210.40.128.0/24 AS4538 China Education and Research Network 256
210.40.144.0/24 AS4538 China Education and Research Network 256
210.40.128.0/20 AS4538 China Education and Research Network 4,096

Nearby Ranges

BGP prefixes that overlap with 210.40.0.0/16

Range ASN Company Num of IPs
210.32.0.0/12 AS4538 China Education and Research Network 1,048,576
210.40.64.0/18 AS4538 China Education and Research Network 16,384
210.40.0.0/18 AS4538 China Education and Research Network 16,384
210.40.192.0/18 AS4538 China Education and Research Network 16,384
210.40.32.0/20 AS4538 China Education and Research Network 4,096
210.40.160.0/20 AS4538 China Education and Research Network 4,096
210.40.176.0/20 AS4538 China Education and Research Network 4,096
210.40.128.0/20 AS4538 China Education and Research Network 4,096
210.40.208.0/21 AS4538 China Education and Research Network 2,048
210.40.216.0/21 AS4538 China Education and Research Network 2,048
210.40.116.0/22 AS4538 China Education and Research Network 1,024
210.40.112.0/22 AS4538 China Education and Research Network 1,024
210.40.62.0/23 AS4538 China Education and Research Network 512
210.40.80.0/24 AS4538 China Education and Research Network 256
210.40.224.0/24 AS4538 China Education and Research Network 256
210.40.2.0/24 AS4538 China Education and Research Network 256
210.40.176.0/24 AS4538 China Education and Research Network 256
210.40.32.0/24 AS4538 China Education and Research Network 256
210.40.128.0/24 AS4538 China Education and Research Network 256
210.40.160.0/24 AS4538 China Education and Research Network 256
210.40.63.0/24 AS4538 China Education and Research Network 256
210.40.216.0/24 AS4538 China Education and Research Network 256
210.40.1.0/24 AS4538 China Education and Research Network 256
210.40.0.0/24 AS4538 China Education and Research Network 256
210.40.144.0/24 AS4538 China Education and Research Network 256
210.40.3.0/24 AS4538 China Education and Research Network 256
210.40.112.0/24 AS4538 China Education and Research Network 256
210.40.64.0/24 AS4538 China Education and Research Network 256
210.40.6.0/24 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

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

IP Address ASN Details
210.40.143.120 AS4538 China Education and Research Network Center 25.55ms from Guiyang, CN
210.40.128.35 AS4538 China Education and Research Network Center 28.79ms from Guangzhou, CN
210.40.148.20 AS4538 China Education and Research Network Center 35.60ms from Hong Kong, HK
210.40.144.33 AS4538 China Education and Research Network Center 31.40ms from Guiyang, CN
210.40.131.11 AS4538 China Education and Research Network Center 25.57ms from Guiyang, 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
46.37.11.3 AS31034 Aruba S.p.A. 0.54ms from Arezzo, IT
87.120.107.83 AS215428 Mykyta Skorobohatko 0.99ms from Helsinki, FI
154.198.242.243 AS40065 CNSERVERS LLC 0.49ms from Hong Kong, HK
86.242.231.163 AS3215 Orange S.A. 1.84ms from Paris, FR
205.182.167.3 AS3356 Level 3 Parent, LLC 0.21ms from Seattle, US
106.46.39.51 AS4134 CHINANET-BACKBONE 9.51ms from Zhengzhou, CN
87.175.167.243 AS3320 Deutsche Telekom AG 7.93ms from Frankfurt am Main, DE
104.209.47.67 AS8075 Microsoft Corporation 0.60ms from San Jose, US
85.3.37.147 AS3303 Swisscom (Switzerland) Ltd 1.83ms from Zuerich, CH
39.56.70.227 AS17557 Pakistan Telecommunication Company Limited 6.69ms from Lahore, PK
174.139.134.195 AS35908 Krypt Technologies 0.85ms from Los Angeles, US
218.115.116.163 AS17676 SoftBank Corp. 4.24ms from Osaka, JP
210.50.68.19 AS9443 Vocus Retail 1.21ms from Sydney, AU
131.221.3.67 AS61496 UNIVERSIDAD NACIONAL DEL CENTRO DE LA PROVINCIA DE BUENOS AIRES 10.83ms from Buenos Aires, AR
70.250.119.3 AS7018 AT&T Enterprises, LLC 2.63ms from Durham, US
112.48.217.115 AS9808 China Mobile Communications Group Co., Ltd. 2.23ms from Fuzhou, CN
1.58.161.67 AS4837 CHINA UNICOM China169 Backbone 14.26ms from Liaoyang, CN
83.220.49.195 AS31261 PJSC MegaFon 1.86ms from Moscow, RU
83.8.24.227 AS5617 Orange Polska Spolka Akcyjna 2.83ms from Poznan, PL
107.148.149.3 AS399195 PEG TECH INC 0.19ms from Seoul, KR
59.20.207.131 AS4766 Korea Telecom 6.13ms from Seoul, KR
216.37.62.227 AS17054 Expedient 0.21ms from South Bend, US
107.154.214.147 AS19551 Incapsula Inc 0.20ms from Amsterdam, NL
77.191.64.195 AS6805 Telefonica Germany GmbH & Co.OHG 2.96ms from Berlin, DE
117.203.240.67 AS9829 National Internet Backbone 0.98ms from Delhi, IN

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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