219.244.80.0/20

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 219.244.80.0/20

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
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
219.244.0.0/20	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

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

IP Address	ASN	Details
219.244.81.17	AS4538 China Education and Research Network Center	14.32ms from Chengdu, CN
219.244.80.6	AS4538 China Education and Research Network Center	20.94ms from Beijing, 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
93.141.195.4	AS5391 Hrvatski Telekom d.d.	14.51ms from Belgrade, RS
60.191.83.4	AS58461 CT-HangZhou-IDC	4.22ms from Hangzhou, CN
210.193.186.164	AS17477 Macquarie Technology Operations Pty Limited	0.57ms from Melbourne, AU
174.17.7.100	AS209 CenturyLink Communications, LLC	1.21ms from Phoenix, US
24.126.3.100	AS7922 Comcast Cable Communications, LLC	7.00ms from Ashburn, US
79.129.28.212	AS6799 Ote SA (Hellenic Telecommunications Organisation)	1.71ms from Athens, GR
80.218.146.84	AS6730 Sunrise GmbH	5.13ms from Zuerich, CH
110.78.23.132	AS9931 The Communication Authoity of Thailand, CAT	1.23ms from Bangkok, TH
211.86.50.116	AS4538 China Education and Research Network Center	9.47ms from Beijing, CN
47.18.206.52	AS6128 Cablevision Systems Corp.	2.12ms from New York City, US
24.5.120.4	AS7922 Comcast Cable Communications, LLC	6.49ms from San Jose, US
80.138.235.180	AS3320 Deutsche Telekom AG	3.92ms from Hamburg, DE
60.152.145.36	AS17676 SoftBank Corp.	3.60ms from Osaka, JP
39.72.162.100	AS4837 CHINA UNICOM China169 Backbone	8.68ms from Qingdao, CN
193.105.107.228	AS50674 JSC Stock Exchange "Saint Petersburg"	1.45ms from Saint Petersburg, RU
124.218.234.52	AS7482 Asia Pacific On-line Service Inc.	2.53ms from Taipei, TW
37.120.235.116	AS9009 M247 Europe SRL	0.29ms from Dublin, IE
27.70.153.68	AS7552 Viettel Group	10.62ms from Ho Chi Minh City, VN
178.166.188.36	AS12389 PJSC Rostelecom	0.63ms from Krasnoyarsk, RU
176.37.26.84	AS39608 Lanet Network Ltd	0.61ms from Kyiv, UA
13.35.93.212	AS16509 Amazon.com, Inc.	0.08ms from New York City, US
209.227.221.196	AS213224 Aruba S.p.A.	3.41ms from Arezzo, IT
27.10.83.148	AS4837 CHINA UNICOM China169 Backbone	2.21ms from Chongqing, CN
111.95.57.100	AS23700 Linknet-Fastnet ASN	4.71ms from Jakarta, ID
182.216.48.212	AS17858 LG POWERCOMM	2.28ms from Seoul, KR

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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