210.30.128.0/20

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 210.30.0.0/16
Registry APNIC
ID CERNET-CN

WHOIS Details

inetnum:        210.26.0.0 - 210.31.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Room 224, Tsinghua University
descr:          Beijing, China
country:        CN
admin-c:        JW725-AP
tech-c:         XL364-AP
tech-c:         LZ530-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        confederation
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-10-20T00:56:02Z
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:        JW725-AP
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:23:32Z
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:        LZ530-AP
notify:         dbmon@apnic.net
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:23:32Z
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:        XL364-AP
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:23:32Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 210.30.128.0/20

Range ASN Company Num of IPs
210.30.0.0/16 AS24369 China Education and Research Network 65,536
210.30.0.0/16 AS4538 China Education and Research Network 65,536
210.28.0.0/14 AS4538 China Education and Research Network 262,144

Nearby Ranges

BGP prefixes that overlap with 210.30.0.0/16

Range ASN Company Num of IPs
210.28.0.0/14 AS4538 China Education and Research Network 262,144
210.30.0.0/16 AS24369 China Education and Research Network 65,536
210.30.0.0/16 AS4538 China Education and Research Network 65,536
210.30.192.0/20 AS4538 China Education and Research Network 4,096
210.30.80.0/20 AS4538 China Education and Research Network 4,096
210.30.96.0/20 AS4538 China Education and Research Network 4,096
210.30.208.0/20 AS4538 China Education and Research Network 4,096
210.30.0.0/20 AS4538 China Education and Research Network 4,096
210.30.32.0/20 AS4538 China Education and Research Network 4,096
210.30.112.0/20 AS4538 China Education and Research Network 4,096
210.30.64.0/20 AS4538 China Education and Research Network 4,096
210.30.48.0/20 AS4538 China Education and Research Network 4,096
210.30.184.0/21 AS4538 China Education and Research Network 2,048
210.30.208.0/21 AS4538 China Education and Research Network 2,048
210.30.232.0/21 AS4538 China Education and Research Network 2,048
210.30.152.0/21 AS4538 China Education and Research Network 2,048
210.30.16.0/22 AS4538 China Education and Research Network 1,024
210.30.148.0/22 AS4538 China Education and Research Network 1,024
210.30.224.0/23 AS4538 China Education and Research Network 512
210.30.81.0/24 AS4538 China Education and Research Network 256
210.30.72.0/24 AS4538 China Education and Research Network 256
210.30.0.0/24 AS4538 China Education and Research Network 256
210.30.114.0/24 AS4538 China Education and Research Network 256
210.30.37.0/24 AS4538 China Education and Research Network 256
210.30.82.0/24 AS4538 China Education and Research Network 256
210.30.18.0/24 AS4538 China Education and Research Network 256
210.30.58.0/24 AS24370 China Education and Research Network 256
210.30.58.0/24 AS4538 China Education and Research Network 256
210.30.16.0/24 AS4538 China Education and Research Network 256
210.30.65.0/24 AS4538 China Education and Research Network 256
210.30.36.0/24 AS4538 China Education and Research Network 256
210.30.76.0/24 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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Pingable IPs

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

IP Address ASN Details
210.30.128.120 AS4538 China Education and Research Network Center 10.51ms from Beijing, 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
71.12.177.148 AS20115 Charter Communications LLC 10.54ms from Atlanta, US
164.111.219.244 AS3452 University of Alabama at Birmingham 3.84ms from Atlanta, US
203.200.8.132 AS4755 TATA Communications formerly VSNL is Leading ISP 0.27ms from Delhi, IN
85.153.132.68 AS34984 Superonline Iletisim Hizmetleri A.S. 3.90ms from Istanbul, TR
75.237.199.52 AS6167 Verizon Business 10.82ms from Los Angeles, US
44.200.154.100 AS14618 Amazon.com, Inc. 0.15ms from Reston, US
172.232.190.84 AS63949 Akamai Connected Cloud 0.40ms from Seattle, US
205.217.131.100 AS3561 CenturyLink Communications, LLC 2.37ms from Singapore, SG
126.235.172.20 AS17676 SoftBank Corp. 3.04ms from Tokyo, JP
80.145.172.196 AS3320 Deutsche Telekom AG 9.95ms from Frankfurt am Main, DE
149.81.2.116 AS36351 IBM Cloud 0.87ms from Frankfurt am Main, DE
94.99.226.4 AS25019 Saudi Telecom Company JSC 2.93ms from Riyadh, SA
78.30.20.180 AS15704 XTRA TELECOM S.A. 2.21ms from Sevilla, ES
123.206.180.164 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.24ms from Shanghai, CN
148.187.4.4 AS559 SWITCH 2.88ms from Zuerich, CH
14.243.109.52 AS45899 VNPT Corp 2.78ms from Da Nang, VN
123.77.1.132 AS56046 China Mobile communications corporation 4.11ms from Suzhou, CN
59.108.80.116 AS4847 China Networks Inter-Exchange 19.94ms from Tianjin, CN
93.223.150.212 AS3320 Deutsche Telekom AG 3.56ms from Duesseldorf, DE
104.140.190.84 AS49532 Eonix Corporation 0.43ms from Frankfurt am Main, DE
34.32.202.20 AS396982 Google LLC 0.13ms from Oudeschip, NL
3.210.39.36 AS14618 Amazon.com, Inc. 0.19ms from Reston, US
60.3.135.100 AS4837 CHINA UNICOM China169 Backbone 7.14ms from Tianjin, CN
62.131.45.100 AS1136 KPN B.V. 2.21ms from Amsterdam, NL
200.202.167.4 AS11097 EMPRESA BRASILEIRA DE PESQUISA AGROPECUARIA 0.77ms from Brasilia, BR

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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