210.25.0.0/16

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Registry APNIC
ID CERNET-CN-PI

WHOIS Details

inetnum:        210.25.0.0 - 210.25.255.255
netname:        CERNET-CN-PI
descr:          China Education and Research Network
descr:          Room 224, Tsinghua University
descr:          Beijing, China
descr:          PI allocation for
descr:          multi-homed members
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 2025-08-15
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-09-04T00:59:41Z
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 2025-08-15
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-15T09:38:28Z
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

Nearby Ranges

BGP prefixes that overlap with 210.0.0.0/8

Range ASN Company Num of IPs
210.8.0.0/15 AS17535 AAPT Limited 131,072
210.8.0.0/15 AS2764 AAPT Limited 131,072
210.8.0.0/15 AS4739 AAPT Limited 131,072
210.58.0.0/16 AS131627 ETWebs Taiwan Co. Ltd. 65,536
210.91.0.0/16 AS23580 Korea Telecom 65,536
210.58.0.0/16 AS17709 ETWebs Taiwan Co. Ltd. 65,536
210.91.0.0/16 AS4766 Korea Telecom 65,536
210.232.0.0/16 AS4713 NTT DOCOMO BUSINESS,Inc. 65,536
210.197.0.0/16 AS4725 SoftBank Corp. 65,536
210.195.0.0/16 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 65,536
210.58.0.0/16 AS131601 ETWebs Taiwan Co. Ltd. 65,536
210.58.0.0/16 AS22787 ETWebs Taiwan Co. Ltd. 65,536
210.196.0.0/16 AS2516 KDDI CORPORATION 65,536
210.177.0.0/16 AS4515 PCCW Business Internet Access 65,536
210.234.0.0/16 AS2516 KDDI CORPORATION 65,536
210.248.0.0/16 AS4713 NTT DOCOMO BUSINESS,Inc. 65,536
210.225.0.0/16 AS4713 NTT DOCOMO BUSINESS,Inc. 65,536
210.194.0.0/16 AS9824 JCOM Co., Ltd. 65,536
210.190.0.0/16 AS4713 NTT DOCOMO BUSINESS,Inc. 65,536
210.124.0.0/16 AS4202 LG DACOM Corporation 65,536
210.128.0.0/16 AS2497 Internet Initiative Japan Inc. 65,536
210.122.0.0/16 AS4961 SEJONG NETWORKS 65,536
210.124.0.0/16 AS38661 LG DACOM Corporation 65,536
210.124.0.0/16 AS45974 LG DACOM Corporation 65,536
210.124.0.0/16 AS9856 LG DACOM Corporation 65,536
210.120.0.0/16 AS9759 LG DACOM Corporation 65,536
210.122.0.0/16 AS38123 SEJONG NETWORKS 65,536
210.122.0.0/16 AS9952 SEJONG NETWORKS 65,536
210.124.0.0/16 AS3786 LG DACOM Corporation 65,536
210.124.0.0/16 AS45368 LG DACOM Corporation 65,536
210.124.0.0/16 AS45404 LG DACOM Corporation 65,536
210.124.0.0/16 AS9319 LG DACOM Corporation 65,536
210.124.0.0/16 AS9767 LG DACOM Corporation 65,536
210.120.0.0/16 AS45374 LG DACOM Corporation 65,536
210.120.0.0/16 AS9684 LG DACOM Corporation 65,536
210.122.0.0/16 AS17837 SEJONG NETWORKS 65,536
210.122.0.0/16 AS3786 SEJONG NETWORKS 65,536
210.122.0.0/16 AS9578 SEJONG NETWORKS 65,536
210.122.0.0/16 AS9848 SEJONG NETWORKS 65,536
210.124.0.0/16 AS10185 LG DACOM Corporation 65,536
210.124.0.0/16 AS23591 LG DACOM Corporation 65,536
210.109.0.0/16 AS38676 SEJONG NETWORKS 65,536
210.120.0.0/16 AS23591 LG DACOM Corporation 65,536
210.109.0.0/16 AS18305 SEJONG NETWORKS 65,536
210.124.0.0/16 AS45374 LG DACOM Corporation 65,536
210.120.0.0/16 AS17862 LG DACOM Corporation 65,536
210.124.0.0/16 AS55592 LG DACOM Corporation 65,536

Hosted domains

There are 5 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
210.25.102.30 xn--ruqw5fuw5a7v9b.xn--fiqs8s 2
210.25.65.1 ns-libertyw-3.online 1
210.25.191.149 confederation.edu.cn 1
210.25.191.143 compass.edu.cn 1

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

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

IP Address ASN Details
210.25.240.251 AS4538 China Education and Research Network Center 17.40ms from Suzhou, CN
210.25.6.129 AS9306 CIETNET 5.53ms from Beijing, CN
210.25.18.57 AS9306 CIETNET 3.96ms from Tianjin, CN
210.25.189.245 AS4538 China Education and Research Network Center 1.23ms from Hong Kong, HK
210.25.187.221 AS4538 China Education and Research Network Center 1.62ms from Beijing, CN
210.25.31.4 AS9306 CIETNET 4.76ms from Tianjin, CN
210.25.11.39 AS9306 CIETNET 3.90ms from Tianjin, CN
210.25.8.1 AS9306 CIETNET 4.83ms from Tianjin, CN
210.25.0.112 AS9306 CIETNET 4.45ms from Beijing, CN
210.25.12.1 AS9306 CIETNET 5.07ms from Tianjin, CN
210.25.128.61 AS4538 China Education and Research Network Center 1.73ms from Beijing, CN
210.25.186.65 AS4538 China Education and Research Network Center 1.36ms from Hong Kong, HK
210.25.7.1 AS9306 CIETNET 4.46ms from Tianjin, 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
66.19.126.80 AS7029 Windstream Communications LLC 0.51ms from Ashburn, US
114.254.19.144 AS4808 China Unicom Beijing Province Network 3.22ms from Beijing, CN
93.237.158.208 AS3320 Deutsche Telekom AG 4.77ms from Frankfurt am Main, DE
113.45.192.96 AS55990 Huawei Cloud Service data center 1.78ms from Guangzhou, CN
34.88.44.0 AS396982 Google LLC 0.13ms from Hamina, FI
80.5.229.192 AS5089 Virgin Media Limited 7.19ms from London, GB
94.15.48.144 AS5607 Sky UK Limited 4.96ms from London, GB
101.83.177.160 AS4812 China Telecom (Group) 4.32ms from Shanghai, CN
114.46.181.160 AS3462 Data Communication Business Group 1.32ms from Taichung, TW
122.116.200.48 AS3462 Data Communication Business Group 1.75ms from Taipei, TW
124.164.199.144 AS4837 CHINA UNICOM China169 Backbone 9.52ms from Taiyuan, CN
221.251.37.32 AS17506 ARTERIA Networks Corporation 1.15ms from Tokyo, JP
218.221.67.80 AS2527 Sony Network Communications Inc. 19.23ms from Tokyo, JP
37.140.6.208 AS8369 Intersvyaz-2 JSC 8.25ms from Yekaterinburg, RU
42.238.12.64 AS4837 CHINA UNICOM China169 Backbone 3.24ms from Zhengzhou, CN
194.158.231.48 AS6730 Sunrise GmbH 0.68ms from Zuerich, CH
182.53.66.160 AS23969 TOT Public Company Limited 7.81ms from Bangkok, TH
111.1.28.96 AS9808 China Mobile Communications Group Co., Ltd. 5.53ms from Hangzhou, CN
156.239.97.144 AS9294 GNET INC. 0.72ms from Hong Kong, HK
86.18.170.32 AS5089 Virgin Media Limited 5.30ms from London, GB
172.93.30.96 AS1403 EBOX 1.30ms from Montreal, CA
125.30.178.128 AS2497 Internet Initiative Japan Inc. 6.33ms from Osaka, JP
124.146.237.64 AS2514 NTT PC Communications, Inc. 4.32ms from Osaka, JP
27.197.188.224 AS4837 CHINA UNICOM China169 Backbone 6.09ms from Qingdao, CN
153.121.38.144 AS9370 SAKURA Internet Inc. 0.78ms from Tokyo, JP

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 -f2 -m13 210.25.70.215
traceroute to 210.25.70.215 (210.25.70.215): 13 hops max, 52 byte packets
3 *
4 *
6 *
7 *
8 *
9 *
10 [AS9808] 221.183.89.33 29.104 ms
11 *
12 *
13 *
Measurement taken from IPinfo ProbeNet in Hong Kong, HK
On

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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