219.244.0.0/20

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	219.244.0.0/14
Registry	APNIC
ID	CERNET-CN

WHOIS Details

inetnum:        219.244.0.0 - 219.247.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Xi'an 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:  2020-10-20T00:56:45Z
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

Overlapping Ranges

BGP prefixes that contain 219.244.0.0/20

Range	ASN	Company	Num of IPs
219.244.0.0/14	AS4538	China Education and Research Network	262,144

Nearby Ranges

BGP prefixes that overlap with 219.244.0.0/16

Range	ASN	Company	Num of IPs
219.244.0.0/14	AS4538	China Education and Research Network	262,144

Hosted domains

There is 1 domain name hosted across 1 IP address 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

Read more

Pingable IPs

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

IP Address	ASN	Details
219.244.0.19	AS4538 China Education and Research Network Center	`22.41ms` from Chengdu, 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
8.141.89.20	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.85ms` from Beijing, CN
172.234.213.4	AS63949 Akamai Connected Cloud	`0.30ms` from Chicago, US
87.168.51.212	AS3320 Deutsche Telekom AG	`6.83ms` from Frankfurt am Main, DE
119.114.161.84	AS4837 CHINA UNICOM China169 Backbone	`11.18ms` from Liaoyang, CN
188.28.76.36	AS206067 Hutchison 3G UK Limited	`6.62ms` from London, GB
92.157.226.228	AS3215 Orange S.A.	`14.46ms` from Lyon, FR
180.46.107.180	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.78ms` from Osaka, JP
108.64.224.132	AS7018 AT&T Enterprises, LLC	`18.41ms` from San Jose, US
172.240.239.132	AS7979 Servers.com, Inc.	`0.59ms` from San Jose, US
180.229.134.180	AS17858 LG POWERCOMM	`1.70ms` from Seoul, KR
45.135.191.132	AS59780 SURFBOXX IT-SOLUTIONS GmbH	`0.46ms` from Berlin, DE
104.231.241.132	AS10796 Charter Communications Inc	`6.90ms` from Chicago, US
108.236.215.244	AS7018 AT&T Enterprises, LLC	`8.74ms` from Columbus, US
183.138.103.244	AS4134 CHINANET-BACKBONE	`12.53ms` from Hangzhou, CN
4.192.75.132	AS8075 Microsoft Corporation	`0.28ms` from Hong Kong, HK
78.183.137.100	AS9121 Turk Telekomunikasyon Anonim Sirketi	`2.25ms` from Istanbul, TR
185.253.99.196	AS9009 M247 Europe SRL	`0.06ms` from Madrid, ES
3.236.11.148	AS14618 Amazon.com, Inc.	`0.41ms` from Reston, US
59.20.57.52	AS4766 Korea Telecom	`6.46ms` from Seoul, KR
110.35.131.52	AS9569 SEOCHO CABLE SYSTEMS CO., LTD.	`0.90ms` from Seoul, KR
195.184.255.84	AS9009 M247 Europe SRL	`0.20ms` from Singapore, SG
75.176.21.196	AS11426 Charter Communications Inc	`7.62ms` from Atlanta, US
73.16.139.180	AS7922 Comcast Cable Communications, LLC	`8.82ms` from Boston, US
185.223.6.84	AS205285 Kapulan Kft.	`5.86ms` from Budapest, HU
41.187.117.68	AS20928 The Noor Group	`18.73ms` from Cairo, EG

Traceroute

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

traceroute -a -n -q1 -f5 -m15 219.244.2.233

traceroute to 219.244.2.233 (219.244.2.233): 15 hops max, 52 byte packets

5 [] 123.255.91.118 83.065 ms

6 [AS4538] 101.4.114.181 117.882 ms

7 *

8 *

9 *

10 [AS4538] 101.4.112.14 133.333 ms

11 *

12 [AS4538] 202.112.12.70 141.331 ms

13 *

14 *

15 *

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On December 6th 2025

What are IP address ranges?

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