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:         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 2025-01-22
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-01-22T13:47:43Z
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 2025-01-22
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-01-22T16:25:45Z
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 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

BGP prefixes that are contained by 219.244.0.0/20

Range	ASN	Company	Num of IPs
219.244.2.0/24	AS4538	China Education and Research Network	256
219.244.0.0/24	AS4538	China Education and Research Network	256

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
219.244.160.0/19	AS4538	China Education and Research Network	8,192
219.244.192.0/19	AS4538	China Education and Research Network	8,192
219.244.224.0/19	AS4538	China Education and Research Network	8,192
219.244.160.0/19	AS24353	China Education and Research Network	8,192
219.244.112.0/20	AS4538	China Education and Research Network	4,096
219.244.16.0/20	AS4538	China Education and Research Network	4,096
219.244.80.0/20	AS4538	China Education and Research Network	4,096
219.244.96.0/20	AS4538	China Education and Research Network	4,096
219.244.48.0/20	AS4538	China Education and Research Network	4,096
219.244.128.0/20	AS4538	China Education and Research Network	4,096
219.244.40.0/21	AS4538	China Education and Research Network	2,048
219.244.32.0/21	AS4538	China Education and Research Network	2,048
219.244.64.0/21	AS4538	China Education and Research Network	2,048
219.244.222.0/24	AS4538	China Education and Research Network	256
219.244.0.0/24	AS4538	China Education and Research Network	256
219.244.221.0/24	AS4538	China Education and Research Network	256
219.244.212.0/24	AS4538	China Education and Research Network	256
219.244.29.0/24	AS4538	China Education and Research Network	256
219.244.2.0/24	AS4538	China Education and Research Network	256
219.244.18.0/24	AS4538	China Education and Research Network	256
219.244.223.0/24	AS4538	China Education and Research Network	256
219.244.28.0/24	AS4538	China Education and Research Network	256
219.244.16.0/24	AS4538	China Education and Research Network	256
219.244.208.0/24	AS4538	China Education and Research Network	256
219.244.17.0/24	AS4538	China Education and Research Network	256

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

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Pingable IPs

34 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	20.23ms from Chengdu, CN
219.244.1.231	AS4538 China Education and Research Network Center	29.83ms from Zhongwei, CN
219.244.15.223	AS4538 China Education and Research Network Center	29.50ms from Zhongwei, 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
154.29.36.84	AS46261 QuickPacket, LLC	0.20ms from Ashburn, US
39.156.179.244	AS9808 China Mobile Communications Group Co., Ltd.	2.89ms from Beijing, CN
27.58.98.100	AS24560 Bharti Airtel Ltd., Telemedia Services	7.07ms from Delhi, IN
91.108.181.228	AS57858 Angelnet Limited	0.88ms from Stockholm, SE
91.32.223.212	AS3320 Deutsche Telekom AG	3.16ms from Berlin, DE
14.183.144.132	AS45899 VNPT Corp	2.74ms from Ho Chi Minh City, VN
88.88.34.228	AS2119 Telenor Norge AS	6.07ms from Oslo, NO
140.249.48.116	AS58541 Qingdao,266000	1.00ms from Qingdao, CN
177.124.68.4	AS262317 ROS Telecom	9.87ms from Sao Paulo, BR
170.233.134.196	AS262470 Pontenet Teleinformática Ltda.	11.01ms from Sao Paulo, BR
212.36.86.4	AS15699 Adam EcoTech, S.A	8.44ms from Barcelona, ES
211.103.188.196	AS4808 China Unicom Beijing Province Network	4.49ms from Beijing, CN
79.252.140.132	AS3320 Deutsche Telekom AG	10.19ms from Frankfurt am Main, DE
3.115.167.68	AS16509 Amazon.com, Inc.	0.17ms from Tokyo, JP
223.144.96.180	AS4134 CHINANET-BACKBONE	3.64ms from Changsha, CN
46.8.175.84	AS201746 Olivenet Network S.L.	8.87ms from Madrid, ES
27.4.16.36	AS17488 Hathway IP Over Cable Internet	1.73ms from Saint Thomas Mount, IN
54.193.167.244	AS16509 Amazon.com, Inc.	0.13ms from San Jose, US
126.38.5.244	AS17676 SoftBank Corp.	3.38ms from Tokyo, JP
63.128.108.244	AS3561 CenturyLink Communications, LLC	1.69ms from Atlanta, US
191.190.160.52	AS28573 Claro NXT Telecomunicacoes Ltda	3.94ms from Osasco, BR
8.153.63.244	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	3.19ms from Shanghai, CN
85.108.116.164	AS9121 Turk Telekomunikasyon Anonim Sirketi	4.85ms from Bursa, TR
208.106.130.84	AS14992 NewtekOne, Inc.	2.19ms from Phoenix, US
178.62.169.164	AS14061 DigitalOcean, LLC	0.21ms from Amsterdam, NL

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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