219.224.0.0/13

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
Registry APNIC
ID BJR-CERNET

WHOIS Details

inetnum:        219.224.0.0 - 219.226.255.255
netname:        BJR-CERNET
descr:          China Education and Research Network
descr:          Beijing 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:  2020-10-20T00:56:54Z
source:         APNIC

irt:            IRT-CERNET-AP
address:        Network Center,
address:        FIT-3-220, 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:        abuse@cernet.edu.cn was validated on 2026-03-05
mnt-by:         MAINT-CERNET-AP
last-modified:  2026-03-05T06:39:56Z
source:         APNIC

role:           ABUSE CERNETAP
country:        ZZ
address:        Network Center,
address:        FIT-3-220, 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 2026-03-05
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2026-03-05T06:40:20Z
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

Overlapping Ranges

BGP prefixes that are contained by 219.224.0.0/13

Range ASN Company Num of IPs
219.227.0.0/16 AS4538 China Education and Research Network 65,536

Nearby Ranges

BGP prefixes that overlap with 219.0.0.0/8

Range ASN Company Num of IPs
219.32.0.0/11 AS17676 Japan nation-wide Network of SOFTBANK Corp. 2,097,152
219.16.0.0/12 AS17676 Japan nation-wide Network of SOFTBANK Corp. 1,048,576
219.244.0.0/14 AS4538 China Education and Research Network 262,144
219.248.0.0/14 AS9318 SK Broadband Co Ltd 262,144
219.86.0.0/15 AS9924 Taiwan Fixed Network CO.,LTD. 131,072
219.80.0.0/15 AS9924 Taiwan Fixed Network CO.,LTD. 131,072
219.66.0.0/15 AS4725 SoftBank Corp. 131,072
219.86.0.0/15 AS3911 Taiwan Fixed Network CO.,LTD. 131,072
219.240.0.0/15 AS9318 SK Broadband Co Ltd 131,072
219.254.0.0/15 AS9318 SK Broadband Co Ltd 131,072
219.70.0.0/15 AS9416 Hoshin Multimedia Center Inc 131,072
219.242.0.0/15 AS4538 China Education and Research Network 131,072
219.119.0.0/16 AS2497 Internet Initiative Japan Inc. 65,536
219.237.0.0/16 AS17429 BEIJING SANXIN SHIDAI CO., LTD. 65,536
219.252.0.0/16 AS18302 SK Broadband Co Ltd 65,536
219.102.0.0/16 AS2514 NTT PC Communications,Inc. 65,536
219.120.0.0/16 AS17506 ARTERIA Networks Corporation 65,536
219.77.0.0/16 AS4760 Hong Kong Telecommunications (HKT) Limited Mass Internet 65,536
219.140.0.0/16 AS137266 Chinanet network in Wuhan city Hubei province 65,536
219.95.0.0/16 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 65,536
219.82.0.0/16 AS24139 Huashu media&Network Limited 65,536
219.253.0.0/16 AS18302 SK Broadband Co Ltd 65,536
219.123.0.0/16 AS17506 ARTERIA Networks Corporation 65,536
219.79.0.0/16 AS4760 Hong Kong Telecommunications (HKT) Limited Mass Internet 65,536
219.72.0.0/16 AS18118 CITIC Networks Management Co.,Ltd. 65,536
219.125.0.0/16 AS2516 KDDI CORPORATION 65,536
219.108.0.0/16 AS2516 KDDI CORPORATION 65,536
219.78.0.0/16 AS4760 Hong Kong Telecommunications (HKT) Limited Mass Internet 65,536
219.110.0.0/16 AS9365 its communications Inc. 65,536
219.220.0.0/16 AS4538 China Education and Research Network 65,536
219.227.0.0/16 AS4538 China Education and Research Network 65,536
219.92.0.0/16 AS4788 TMNET 65,536
219.140.0.0/16 AS4134 Chinanet network in Wuhan city Hubei province 65,536
219.98.0.0/16 AS2527 Sony Network Communications Inc. 65,536
219.233.0.0/16 AS9812 Oriental Cable Network Co., Ltd. 65,536
219.107.0.0/16 AS2518 BIGLOBE Inc. 65,536
219.253.0.0/16 AS9318 SK Broadband Co Ltd 65,536
219.252.0.0/16 AS9318 SK Broadband Co Ltd 65,536
219.147.128.0/17 AS4134 CHINANET HEILONGJIANG PROVINCE NETWORK 32,768
219.96.128.0/17 AS4713 NTT DOCOMO BUSINESS,Inc. 32,768
219.142.0.0/17 AS4847 Beijing Kuanjie Net communication technology Ltd 32,768
219.141.0.0/17 AS4134 CHINANET Guizhou province network 32,768
219.158.128.0/17 AS4808 China Unicom Beijing province network 32,768
219.114.0.0/17 AS4713 NTT DOCOMO BUSINESS,Inc. 32,768
219.95.128.0/17 AS4788 TMNET 32,768
219.91.0.0/17 AS131627 Asia Pacific On-line Services Inc. 32,768
219.90.128.0/17 AS4739 iiNet Limited 32,768
219.126.0.0/17 AS10010 TOKAI Communications Corporation 32,768
219.111.0.0/17 AS2497 Internet Initiative Japan Inc. 32,768
219.94.0.0/17 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 32,768

Hosted domains

There are 46 domain names hosted across 34 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP

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

14,155 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
219.231.134.205 AS4538 China Education and Research Network Center 5.94ms from Qingdao, CN
219.231.25.131 AS4538 China Education and Research Network Center 14.79ms from Shanghai, CN
219.229.134.172 AS4538 China Education and Research Network Center 20.39ms from Guangzhou, CN
219.229.237.254 AS4538 China Education and Research Network Center 35.65ms from Guangzhou, CN
219.229.132.116 AS4538 China Education and Research Network Center 18.86ms from Guangzhou, CN
219.231.167.203 AS4538 China Education and Research Network Center 5.92ms from Qingdao, CN
219.231.140.218 AS4538 China Education and Research Network Center 5.92ms from Qingdao, CN
219.231.146.134 AS4538 China Education and Research Network Center 5.86ms from Qingdao, CN
219.231.151.128 AS4538 China Education and Research Network Center 6.04ms from Qingdao, CN
219.231.222.108 AS4538 China Education and Research Network Center 21.80ms from Beijing, CN
219.231.170.19 AS4538 China Education and Research Network Center 5.93ms from Qingdao, CN
219.231.48.21 AS4538 China Education and Research Network Center 14.96ms from Shanghai, CN
219.231.165.52 AS4538 China Education and Research Network Center 6.01ms from Qingdao, CN
219.231.175.240 AS4538 China Education and Research Network Center 6.01ms from Qingdao, CN
219.231.133.205 AS4538 China Education and Research Network Center 5.90ms from Qingdao, CN
219.231.157.126 AS4538 China Education and Research Network Center 5.90ms from Qingdao, CN
219.229.249.18 AS4538 China Education and Research Network Center 33.05ms from Shenzhen, CN
219.231.156.42 AS4538 China Education and Research Network Center 6.00ms from Qingdao, CN
219.231.129.101 AS4538 China Education and Research Network Center 5.98ms from Qingdao, CN
219.231.169.30 AS4538 China Education and Research Network Center 5.97ms from Qingdao, CN
219.231.138.25 AS4538 China Education and Research Network Center 5.92ms from Qingdao, CN
219.231.53.235 AS4538 China Education and Research Network Center 13.76ms from Shanghai, CN
219.230.158.61 AS4538 China Education and Research Network Center 14.56ms from Shanghai, CN
219.231.174.42 AS4538 China Education and Research Network Center 6.03ms from Qingdao, CN
219.230.46.2 AS4538 China Education and Research Network Center 14.96ms from Shanghai, 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
68.182.242.189 AS6079 RCN 2.69ms from Ashburn, US
141.20.242.253 AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. 1.44ms from Berlin, DE
188.121.171.141 AS43451 Slovanet a.s. 1.03ms from Bratislava, SK
197.89.180.45 AS20011 Dimension Data 1.97ms from Cape Town, ZA
2.218.191.205 AS5607 Sky UK Limited 2.32ms from Erith, GB
3.124.126.13 AS16509 Amazon.com, Inc. 0.18ms from Frankfurt am Main, DE
2.21.76.237 AS20940 Akamai International B.V. 0.28ms from Frankfurt am Main, DE
223.92.7.109 AS9808 China Mobile Communications Group Co., Ltd. 6.94ms from Hangzhou, CN
98.199.6.13 AS7922 Comcast Cable Communications, LLC 4.93ms from Houston, US
86.28.57.205 AS5089 Virgin Media Limited 1.32ms from London, GB
202.5.19.205 AS7489 HostUS 0.28ms from Los Angeles, US
2.116.170.253 AS3269 Telecom Italia S.p.A. 1.91ms from Milan, IT
4.37.182.93 AS3356 Level 3 Parent, LLC 0.59ms from Minneapolis, US
159.41.179.237 AS8011 MongoDB, Inc. 0.10ms from Mumbai, IN
222.8.55.61 AS2516 KDDI CORPORATION 13.65ms from Osaka, JP
191.121.243.61 AS26615 TIM S/A 18.62ms from Osasco, BR
166.70.175.205 AS6315 XMission, L.C. 0.26ms from Salt Lake City, US
201.144.206.45 AS8151 UNINET 3.64ms from Santiago de Queretaro, MX
129.148.39.205 AS31898 Oracle Corporation 0.32ms from Sao Paulo, BR
182.213.148.13 AS17858 LG POWERCOMM 1.72ms from Seoul, KR
60.240.73.93 AS7545 TPG Telecom Limited 1.21ms from Sydney, AU
219.102.216.109 AS2514 NTT PC Communications, Inc. 3.24ms from Tokyo, JP
75.8.253.125 AS7018 AT&T Enterprises, LLC 11.70ms from Atlanta, US
123.208.122.93 AS135887 Belong (Telstra Limited) 2.42ms from Brisbane, AU
186.57.127.141 AS22927 Telefonica de Argentina 1.71ms from Buenos Aires, AR

Traceroute

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

$
traceroute -a -n -q1 -m14 219.231.196.140
traceroute to 219.231.196.140 (219.231.196.140): 14 hops max, 52 byte packets
1 [AS15169] 72.14.239.92 97.805 ms
2 [] 123.255.91.84 102.97 ms
3 *
4 [AS174] 38.150.75.1 105.165 ms
5 [AS4538] 101.4.114.181 134.316 ms
6 *
7 [AS4538] 101.4.117.81 133.576 ms
8 *
9 [AS4538] 101.4.112.70 135.402 ms
10 *
11 [AS4538] 101.4.116.117 141.897 ms
12 *
13 *
14 *
Measurement taken from IPinfo ProbeNet in Delhi, IN
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