219.244.192.0/19

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 219.244.192.0/19

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 219.244.192.0/19

Range	ASN	Company	Num of IPs
219.244.208.0/24	AS4538	China Education and Research Network	256
219.244.223.0/24	AS4538	China Education and Research Network	256
219.244.222.0/24	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

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
219.244.224.0/19	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
219.244.0.0/20	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 are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
81.206.59.243	AS1136 KPN B.V.	2.26ms from Amsterdam, NL
176.211.203.179	AS12389 PJSC Rostelecom	4.97ms from Krasnodar, RU
178.150.177.99	AS13188 CONTENT DELIVERY NETWORK LTD	7.16ms from Kyiv, UA
180.255.76.243	AS9506 Singtel Fibre Broadband	0.77ms from Singapore, SG
24.99.191.115	AS7922 Comcast Cable Communications, LLC	5.32ms from Atlanta, US
23.208.206.67	AS20940 Akamai International B.V.	0.71ms from Chicago, US
43.231.4.131	AS132825 MYTEK TRADING PTY LTD	1.25ms from Hong Kong, HK
94.12.60.163	AS5607 Sky UK Limited	10.63ms from London, GB
178.255.250.131	AS41148 Zolotaya Linia JSC.	10.09ms from Moscow, RU
27.192.244.51	AS4837 CHINA UNICOM China169 Backbone	6.04ms from Qingdao, CN
51.143.41.99	AS8075 Microsoft Corporation	0.21ms from Quincy, US
175.243.47.179	AS4766 Korea Telecom	7.07ms from Seoul, KR
61.241.62.35	AS135061 China Unicom Guangdong IP network	2.12ms from Shenzhen, CN
216.228.232.3	AS11227 Morningstar, Inc.	0.40ms from Hong Kong, HK
112.208.236.163	AS9299 Philippine Long Distance Telephone Company	1.06ms from Manila, PH
124.135.227.3	AS4837 CHINA UNICOM China169 Backbone	8.63ms from Qingdao, CN
218.51.136.19	AS9318 SK Broadband Co Ltd	1.29ms from Seoul, KR
92.104.2.131	AS3303 Swisscom (Switzerland) Ltd	0.59ms from Zuerich, CH
43.100.24.227	AS45102 Alibaba (US) Technology Co., Ltd.	0.80ms from Hong Kong, HK
108.159.198.19	AS16509 Amazon.com, Inc.	0.51ms from Hyderabad, IN
68.105.188.163	AS22773 Cox Communications Inc.	6.72ms from Los Angeles, US
98.117.21.3	AS701 Verizon Business	3.19ms from Philadelphia, US
37.49.125.3	AS3209 Vodafone GmbH	12.95ms from Frankfurt am Main, DE
147.50.244.243	AS142299 CLOUDFOREST CO., LTD.	0.77ms from Bangkok, TH
86.46.19.163	AS5466 Eircom Limited	2.19ms from Dublin, IE

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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