219.242.0.0/15

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

WHOIS Details

inetnum:        219.242.0.0 - 219.243.255.255
netname:        CERNET-CN
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:  2020-10-20T00:56:47Z
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

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
219.80.0.0/15 AS9924 Taiwan Fixed Network CO.,LTD. 131,072
219.254.0.0/15 AS9318 SK Broadband Co Ltd 131,072
219.86.0.0/15 AS9924 Taiwan Fixed Network CO.,LTD. 131,072
219.70.0.0/15 AS9416 Hoshin Multimedia Center Inc 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
219.119.0.0/16 AS2497 Internet Initiative Japan Inc. 65,536
219.253.0.0/16 AS9318 SK Broadband Co Ltd 65,536
219.120.0.0/16 AS17506 ARTERIA Networks Corporation 65,536
219.237.0.0/16 AS17429 BEIJING SANXIN SHIDAI CO., LTD. 65,536
219.77.0.0/16 AS4760 Hong Kong Telecommunications (HKT) Limited Mass Internet 65,536
219.227.0.0/16 AS4538 China Education and Research Network 65,536
219.220.0.0/16 AS4538 China Education and Research Network 65,536
219.140.0.0/16 AS4134 Chinanet network in Wuhan city Hubei province 65,536
219.140.0.0/16 AS137266 Chinanet network in Wuhan city Hubei province 65,536
219.125.0.0/16 AS2516 KDDI CORPORATION 65,536
219.98.0.0/16 AS2527 Sony Network Communications Inc. 65,536
219.108.0.0/16 AS2516 KDDI CORPORATION 65,536
219.107.0.0/16 AS2518 BIGLOBE Inc. 65,536
219.123.0.0/16 AS17506 ARTERIA Networks Corporation 65,536
219.78.0.0/16 AS4760 Hong Kong Telecommunications (HKT) Limited Mass Internet 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
219.252.0.0/16 AS18302 SK Broadband Co Ltd 65,536
219.252.0.0/16 AS9318 SK Broadband Co Ltd 65,536
219.102.0.0/16 AS2514 NTT PC Communications,Inc. 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
219.92.0.0/16 AS4788 TMNET 65,536
219.95.0.0/16 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 65,536
219.233.0.0/16 AS9812 Oriental Cable Network Co., Ltd. 65,536
219.110.0.0/16 AS9365 its communications Inc. 65,536
219.94.0.0/17 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 32,768
219.95.0.0/17 AS4788 TMNET 32,768
219.95.128.0/17 AS4788 TMNET 32,768
219.114.0.0/17 AS4713 NTT DOCOMO BUSINESS,Inc. 32,768
219.103.128.0/17 AS9595 NTT-ME Corporation 32,768
219.94.128.0/17 AS9371 SAKURA Internet Inc. 32,768
219.91.0.0/17 AS7482 Asia Pacific On-line Services Inc. 32,768
219.96.128.0/17 AS4713 NTT DOCOMO BUSINESS,Inc. 32,768
219.111.0.0/17 AS2497 Internet Initiative Japan Inc. 32,768
219.90.128.0/17 AS4739 iiNet Limited 32,768
219.91.0.0/17 AS131627 Asia Pacific On-line Services Inc. 32,768
219.73.0.0/17 AS4760 PCCW Limited 32,768

Hosted domains

There are 14 domain names hosted across 13 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
219.243.31.65 lsjhxgs.com 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

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

IP Address ASN Details
219.243.254.161 AS4538 China Education and Research Network Center 17.85ms from Beijing, CN
219.243.176.6 AS4538 China Education and Research Network Center 10.41ms from Beijing, CN
219.243.255.167 AS4538 China Education and Research Network Center 20.55ms from Beijing, CN
219.243.253.167 AS4538 China Education and Research Network Center 12.56ms from Beijing, CN
219.243.239.167 AS4538 China Education and Research Network Center 1.92ms from Guangzhou, CN
219.243.234.161 AS4538 China Education and Research Network Center 25.32ms from Wuhan, CN
219.243.209.1 AS4538 China Education and Research Network Center 2.15ms from Beijing, CN
219.243.71.245 AS4538 China Education and Research Network Center 22.87ms from Beijing, CN
219.243.236.167 AS4538 China Education and Research Network Center 38.09ms from Wuhan, CN
219.243.229.167 AS4538 China Education and Research Network Center 18.82ms from Beijing, CN
219.243.216.231 AS4538 China Education and Research Network Center 0.51ms from Qingdao, CN
219.243.116.251 AS4538 China Education and Research Network Center 4.35ms from Beijing, CN
219.243.237.167 AS4538 China Education and Research Network Center 23.61ms from Wuhan, CN
219.243.251.161 AS4538 China Education and Research Network Center 13.43ms from Wuhan, CN
219.243.214.253 AS4538 China Education and Research Network Center 2.69ms from Beijing, CN
219.243.24.1 AS4538 China Education and Research Network Center 4.48ms from Beijing, CN
219.243.208.193 AS4538 China Education and Research Network Center 1.86ms from Beijing, CN
219.243.22.1 AS4538 China Education and Research Network Center 5.35ms from Beijing, CN
219.243.206.166 AS4538 China Education and Research Network Center 8.51ms from Wuhan, CN
219.243.200.38 AS4538 China Education and Research Network Center 4.95ms from Zhengzhou, CN
219.243.225.167 AS4538 China Education and Research Network Center 5.10ms from Beijing, CN
219.243.252.175 AS4538 China Education and Research Network Center 12.25ms from Guangzhou, CN
219.243.226.161 AS4538 China Education and Research Network Center 9.95ms from Zhengzhou, CN
219.243.39.70 AS4538 China Education and Research Network Center 5.78ms from Beijing, CN
219.243.217.53 AS4538 China Education and Research Network Center 11.26ms from Guangzhou, 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
38.239.205.239 AS134548 DXTL Tseung Kwan O Service 0.71ms from Hong Kong, HK
125.209.42.255 AS17597 SK Broadband Co Ltd 1.42ms from Incheon, KR
61.47.193.255 AS17597 SK Broadband Co Ltd 1.72ms from Incheon, KR
118.51.63.79 AS4766 Korea Telecom 1.83ms from Incheon, KR
95.18.136.47 AS12479 Orange Espagne SA 8.71ms from Madrid, ES
34.160.73.239 AS396982 Google LLC 0.07ms from Melbourne, AU
174.165.121.31 AS7922 Comcast Cable Communications, LLC 4.66ms from Seattle, US
223.219.72.47 AS4713 NTT DOCOMO BUSINESS,Inc. 8.20ms from Tokyo, JP
123.11.201.111 AS4837 CHINA UNICOM China169 Backbone 6.17ms from Zhengzhou, CN
182.124.196.79 AS4837 CHINA UNICOM China169 Backbone 4.68ms from Zhengzhou, CN
160.44.202.175 AS6878 T-Systems International GmbH 3.10ms from Berlin, DE
35.223.128.175 AS396982 Google LLC 0.37ms from Council Bluffs, US
13.224.24.15 AS16509 Amazon.com, Inc. 0.43ms from Delhi, IN
130.162.254.95 AS31898 Oracle Corporation 0.25ms from Frankfurt am Main, DE
178.62.48.63 AS14061 DigitalOcean, LLC 0.27ms from London, GB
83.37.24.127 AS3352 TELEFONICA DE ESPANA S.A.U. 12.66ms from Madrid, ES
177.71.194.79 AS16509 Amazon.com, Inc. 0.16ms from Osasco, BR
91.163.238.79 AS12322 Free SAS 9.83ms from Paris, FR
68.65.193.95 AS62715 CrashPlan 5.03ms from Seattle, US
183.125.224.159 AS4766 Korea Telecom 5.15ms from Seoul, KR
154.28.53.191 AS46261 QuickPacket, LLC 0.19ms from Ashburn, US
216.212.225.143 AS16700 CNSNext 14.01ms from Atlanta, US
24.218.234.95 AS7922 Comcast Cable Communications, LLC 5.91ms from Boston, US
173.217.79.127 AS19108 Optimum 13.85ms from Dallas, US
164.100.128.239 AS4758 National Informatics Centre 1.18ms from Delhi, IN

Traceroute

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

$
traceroute -a -n -q1 -m11 219.242.21.170
traceroute to 219.242.21.170 (219.242.21.170): 11 hops max, 52 byte packets
1 [AS15169] 72.14.239.92 137.102 ms
2 [] 123.255.91.235 140.785 ms
3 *
4 [AS174] 38.150.75.1 139.222 ms
5 [AS4538] 101.4.114.181 175.913 ms
6 *
7 *
8 [AS4538] 101.4.116.94 179.089 ms
9 *
10 *
11 *
Measurement taken from IPinfo ProbeNet in Melbourne, AU
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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