219.223.0.0/16

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

WHOIS Details

inetnum:        219.222.0.0 - 219.223.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Guangzhou 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:        GZR-CERNET
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-10-20T00:56:52Z
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:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        http://www.ccert.edu.cn
remarks:        [email protected] 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:         [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
nic-hdl:        AC1685-AP
remarks:        Generated from irt object IRT-CERNET-AP
remarks:        [email protected] was validated on 2025-08-15
abuse-mailbox:  [email protected]
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:         [email protected]
remarks:        [email protected]
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
219.0.0.0/10	AS17676	Japan nation-wide Network of SOFTBANK Corp.	4,194,304
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
219.240.0.0/15	AS9318	SK Broadband Co Ltd	131,072
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
219.242.0.0/15	AS4538	China Education and Research Network	131,072
219.86.0.0/15	AS3911	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
219.95.0.0/16	AS4788	TM TECHNOLOGY SERVICES SDN. BHD.	65,536
219.78.0.0/16	AS4760	Hong Kong Telecommunications (HKT) Limited Mass Internet	65,536
219.79.0.0/16	AS4760	Hong Kong Telecommunications (HKT) Limited Mass Internet	65,536
219.233.0.0/16	AS9812	Oriental Cable Network Co., Ltd.	65,536
219.92.0.0/16	AS4788	TMNET	65,536
219.77.0.0/16	AS4760	Hong Kong Telecommunications (HKT) Limited Mass Internet	65,536
219.102.0.0/16	AS2514	NTT PC Communications,Inc.	65,536
219.107.0.0/16	AS2518	BIGLOBE Inc.	65,536
219.98.0.0/16	AS2527	Sony Network Communications Inc.	65,536
219.237.0.0/16	AS17429	BEIJING SANXIN SHIDAI CO., LTD.	65,536
219.119.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
219.110.0.0/16	AS9365	its communications Inc.	65,536
219.252.0.0/16	AS9318	SK Broadband Co Ltd	65,536
219.253.0.0/16	AS18302	SK Broadband Co Ltd	65,536
219.140.0.0/16	AS4134	Chinanet network in Wuhan city Hubei province	65,536
219.125.0.0/16	AS2516	KDDI CORPORATION	65,536
219.253.0.0/16	AS9318	SK Broadband Co Ltd	65,536
219.220.0.0/16	AS4538	China Education and Research Network	65,536
219.252.0.0/16	AS18302	SK Broadband Co Ltd	65,536
219.108.0.0/16	AS2516	KDDI CORPORATION	65,536
219.120.0.0/16	AS17506	ARTERIA Networks Corporation	65,536
219.123.0.0/16	AS17506	ARTERIA Networks Corporation	65,536
219.72.0.0/16	AS18118	CITIC Networks Management Co.,Ltd.	65,536
219.82.0.0/16	AS24139	Huashu media&Network Limited	65,536
219.227.0.0/16	AS4538	China Education and Research Network	65,536
219.126.128.0/17	AS2497	Internet Initiative Japan Inc.	32,768
219.158.128.0/17	AS4808	China Unicom Beijing province network	32,768
219.91.0.0/17	AS131627	Asia Pacific On-line Services Inc.	32,768
219.94.128.0/17	AS9371	SAKURA Internet Inc.	32,768
219.103.128.0/17	AS9595	NTT-ME Corporation	32,768
219.113.128.0/17	AS17506	ARTERIA Networks Corporation	32,768
219.114.0.0/17	AS4713	NTT DOCOMO BUSINESS,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
219.126.0.0/17	AS10010	TOKAI Communications Corporation	32,768
219.147.128.0/17	AS17897	CHINANET HEILONGJIANG PROVINCE NETWORK	32,768
219.90.128.0/17	AS4739	iiNet Limited	32,768
219.147.128.0/17	AS4134	CHINANET HEILONGJIANG PROVINCE NETWORK	32,768
219.106.0.0/17	AS138384	Rakuten Mobile, Inc.	32,768

Hosted domains

There are 5 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
219.223.190.2	tbsi.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

Read more

Pingable IPs

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

IP Address	ASN	Details
219.223.136.255	AS4538 China Education and Research Network Center	`1.24ms` from Guangzhou, CN
219.223.130.23	AS4538 China Education and Research Network Center	`4.12ms` from Shenzhen, CN
219.223.252.25	AS4538 China Education and Research Network Center	`5.73ms` from Guangzhou, CN
219.223.213.136	AS4538 China Education and Research Network Center	`9.99ms` from Heyuan, CN
219.223.253.62	AS4538 China Education and Research Network Center	`2.15ms` from Shenzhen, CN
219.223.191.52	AS4538 China Education and Research Network Center	`4.47ms` from Guangzhou, CN
219.223.137.254	AS4538 China Education and Research Network Center	`1.37ms` from Guangzhou, CN
219.223.223.216	AS4538 China Education and Research Network Center	`2.80ms` from Shenzhen, CN
219.223.254.136	AS4538 China Education and Research Network Center	`7.71ms` from Heyuan, CN
219.223.190.148	AS4538 China Education and Research Network Center	`2.64ms` from Shenzhen, CN
219.223.188.40	AS4538 China Education and Research Network Center	`5.17ms` from Guangzhou, CN
219.223.221.245	AS4538 China Education and Research Network Center	`1.86ms` from Shenzhen, CN
219.223.225.10	AS4538 China Education and Research Network Center	`2.04ms` from Shenzhen, CN
219.223.222.230	AS4538 China Education and Research Network Center	`2.52ms` from Shenzhen, CN
219.223.192.25	AS4538 China Education and Research Network Center	`3.04ms` from Shenzhen, CN
219.223.189.86	AS4538 China Education and Research Network Center	`4.96ms` from Guangzhou, CN
219.223.236.33	AS4538 China Education and Research Network Center	`6.54ms` from Guangzhou, CN
219.223.250.251	AS4538 China Education and Research Network Center	`2.33ms` from Shenzhen, 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
2.132.37.192	AS9198 JSC Kazakhtelecom	`2.29ms` from Almaty, KZ
128.186.44.240	AS2553 Florida State University	`10.41ms` from Atlanta, US
73.100.95.160	AS7922 Comcast Cable Communications, LLC	`10.13ms` from Boston, US
73.123.67.0	AS7922 Comcast Cable Communications, LLC	`7.42ms` from Boston, US
75.183.41.64	AS11426 Charter Communications Inc	`10.19ms` from Charlotte, US
209.193.71.80	AS10835 Visionary Communications LLC	`5.98ms` from Denver, US
80.217.24.112	AS1257 Tele2 Sverige AB	`6.92ms` from Goeteborg, SE
86.150.210.112	AS2856 British Telecommunications PLC	`6.20ms` from London, GB
82.203.75.128	AS51551 Capita Business Services Ltd	`18.15ms` from London, GB
77.231.157.208	AS12430 VODAFONE ESPANA S.A.U.	`13.29ms` from Madrid, ES
87.30.121.0	AS3269 Telecom Italia S.p.A.	`4.11ms` from Milan, IT
201.143.245.64	AS8151 UNINET	`15.87ms` from Phoenix, US
85.239.228.16	AS21430 WIA spol. s.r.o.	`5.81ms` from Prague, CZ
89.194.111.224	AS8011 MongoDB, Inc.	`0.14ms` from Reston, US
97.214.39.208	AS6167 Verizon Business	`13.83ms` from San Jose, US
171.1.99.32	AS138345 StarHub Ltd	`14.57ms` from Singapore, SG
3.104.29.32	AS16509 Amazon.com, Inc.	`0.12ms` from Sydney, AU
20.222.84.32	AS8075 Microsoft Corporation	`0.17ms` from Tokyo, JP
74.231.203.80	AS6389 AT&T Enterprises, LLC	`14.06ms` from Atlanta, US
203.151.133.16	AS4618 Internet Thailand Company Limited	`0.53ms` from Bangkok, TH
104.197.92.240	AS396982 Google LLC	`0.13ms` from Council Bluffs, US
86.17.235.0	AS5089 Virgin Media Limited	`6.39ms` from London, GB
194.220.183.176	AS12430 VODAFONE ESPANA S.A.U.	`4.60ms` from Madrid, ES
90.114.55.224	AS3215 Orange S.A.	`10.38ms` from Marseille, FR
87.28.8.0	AS3269 Telecom Italia S.p.A.	`1.73ms` from Milan, IT

Traceroute

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

traceroute -a -n -q1 -f3 -m16 219.223.42.93

traceroute to 219.223.42.93 (219.223.42.93): 16 hops max, 52 byte packets

3 [] 138.197.249.40 0.144 ms

4 [] 143.244.192.108 0.245 ms

5 [] 143.244.224.108 0.518 ms

6 [] 143.244.224.107 9.866 ms

7 [AS1299] 62.115.203.106 0.648 ms

8 [AS1299] 62.115.141.152 0.684 ms

9 [AS1299] 62.115.124.61 21.558 ms

10 [AS1299] 62.115.142.207 152.297 ms

11 [AS1299] 62.115.137.185 187.075 ms

12 [AS1299] 80.239.130.173 190.484 ms

13 [AS4538] 101.4.114.181 221.181 ms

14 *

15 *

16 *

Measurement taken from

IPinfo ProbeNet in Frankfurt am Main, DE

On December 15th 2025

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