223.128.0.0/17

AS4538  ·  China Education and Research Network Center

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 223.128.0.0/15
Registry APNIC
ID CDR-CERNET

WHOIS Details

inetnum:        223.128.0.0 - 223.129.255.255
netname:        CDR-CERNET
descr:          China Education and Research Network
descr:          Chengdu Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
remarks:        confederation
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:07Z
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:  2025-11-18T00:26:28Z
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

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:          223.128.0.0/15
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2010-07-15T07:00:02Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 223.128.0.0/17

Range ASN Company Num of IPs
223.128.0.0/15 AS4538 China Education and Research Network 131,072

Nearby Ranges

BGP prefixes that overlap with 223.128.0.0/16

Range ASN Company Num of IPs
223.128.0.0/15 AS4538 China Education and Research Network 131,072

Hosted domains

There are 7 domain names hosted across 5 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
223.128.6.225 tarobina.com.pk 1
223.128.77.169 treepic.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

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
102.67.120.129 AS37721 Virtual Technologies & Solutions 15.76ms from Accra, GH
45.138.230.225 AS206238 Freedom Internet BV 0.74ms from Amsterdam, NL
109.242.6.1 AS25472 Nova Telecommunications & Media Single Member S.A 8.54ms from Athens, GR
47.5.160.1 AS20115 Charter Communications LLC 3.44ms from Atlanta, US
116.251.200.1 AS55850 Mercury NZ Limited 2.87ms from Auckland, NZ
150.164.68.81 AS271354 UNIVERSIDADE FEDERAL DE MINAS GERAIS 1.01ms from Belo Horizonte, BR
14.194.10.225 AS45820 Tata Teleservices ISP AS 2.01ms from Bengaluru, IN
199.58.120.1 AS397268 Cambridge Telephone 2.08ms from Boise, US
216.10.171.1 AS11776 Breezeline 2.15ms from Boston, US
72.70.120.1 AS701 Verizon Business 2.86ms from Boston, US
20.22.6.145 AS8075 Microsoft Corporation 0.27ms from Boydton, US
190.18.184.1 AS7303 Telecom Argentina S.A. 1.22ms from Buenos Aires, AR
185.126.176.241 AS60721 Bursabil Teknoloji A.S. 0.06ms from Bursa, TR
206.75.141.1 AS852 TELUS Communications Inc. 10.32ms from Calgary, CA
197.155.31.225 AS37199 Vanilla 0.89ms from Cape Town, ZA
207.113.189.129 AS13428 Surf Air Wireless, LLC 2.10ms from Chicago, US
206.82.145.225 AS22027 CBTS Technology Solutions LLC 1.95ms from Chicago, US
107.139.219.113 AS7018 AT&T Enterprises, LLC 11.40ms from Chicago, US
98.140.178.17 AS7029 Windstream Communications LLC 10.49ms from Chicago, US
123.144.90.1 AS4837 CHINA UNICOM China169 Backbone 3.06ms from Chongqing, CN
220.192.185.1 AS4837 CHINA UNICOM China169 Backbone 2.64ms from Chongqing, CN
47.24.61.161 AS20115 Charter Communications LLC 6.75ms from Dallas, US
12.173.130.193 AS7018 AT&T Enterprises, LLC 2.42ms from Dallas, US
170.238.209.1 AS266334 Globall Networks Comércio e Serviços LTDA 13.98ms from Fortaleza, BR
144.24.179.1 AS31898 Oracle Corporation 0.30ms from Frankfurt am Main, DE

Traceroute

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

$
traceroute -a -n -q1 -f4 -m15 223.128.0.20
traceroute to 223.128.0.20 (223.128.0.20): 15 hops max, 52 byte packets
4 [AS4134] 42.203.78.65 0.323 ms
6 *
7 *
8 *
9 *
10 [AS4134] 202.97.118.126 53.238 ms
11 *
12 [AS4538] 101.4.116.242 53.919 ms
13 *
14 *
15 *
Measurement taken from IPinfo ProbeNet in Liaoyang, CN
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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs