219.244.128.0/20

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 219.244.128.0/20

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
219.244.80.0/20	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
219.244.40.0/21	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

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

IP Address	ASN	Details
219.244.128.15	AS4538 China Education and Research Network Center	17.49ms 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
85.60.32.164	AS12479 Orange Espagne SA	9.89ms from Madrid, ES
185.220.82.4	AS212282 Business Research S.r.l.	4.12ms from Milan, IT
80.219.55.132	AS6730 Sunrise GmbH	10.55ms from Zuerich, CH
186.121.85.84	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	2.82ms from Bogota, CO
188.122.46.100	AS13037 Zen Internet Ltd	4.19ms from London, GB
125.9.203.84	AS9824 JCOM Co., Ltd.	9.44ms from Osaka, JP
177.85.180.4	AS262611 Ivr informatica ltda me	15.11ms from Osasco, BR
20.65.194.52	AS8075 Microsoft Corporation	0.64ms from San Antonio, US
122.38.168.148	AS17858 LG POWERCOMM	5.09ms from Seoul, KR
120.78.102.36	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	0.89ms from Shenzhen, CN
210.202.79.20	AS24154 Asia Pacific Broadband Fixed Lines Co., Ltd.	6.59ms from Taipei, TW
198.57.154.132	AS46606 Unified Layer	1.96ms from Draper, US
125.77.139.20	AS133776 Quanzhou	3.04ms from Fuzhou, CN
182.70.246.68	AS24560 Bharti Airtel Ltd., Telemedia Services	2.68ms from Indore, IN
217.146.116.52	AS16353 Merula Limited	1.66ms from London, GB
183.112.247.84	AS4766 Korea Telecom	1.41ms from Seoul, KR
74.176.177.244	AS8075 Microsoft Corporation	0.15ms from Tokyo, JP
194.47.249.36	AS1653 Vetenskapsradet / SUNET	2.24ms from Copenhagen, DK
94.28.158.116	AS12389 PJSC Rostelecom	4.25ms from Moscow, RU
89.83.164.180	AS5410 Bouygues Telecom SA	2.81ms from Paris, FR
187.136.84.84	AS8151 UNINET	17.12ms from Santiago de Queretaro, MX
106.167.251.212	AS2516 KDDI CORPORATION	5.22ms from Tokyo, JP
37.222.108.244	AS12430 VODAFONE ESPANA S.A.U.	8.07ms from Zaragoza, ES
159.183.208.196	AS11377 SendGrid, Inc.	0.38ms from Ashburn, US
206.195.147.228	AS22709 North State Telephone, LLC	3.53ms from Ashburn, US

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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