219.244.112.0/20

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 219.244.112.0/20

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
219.244.16.0/20	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
34.209.146.36	AS16509 Amazon.com, Inc.	0.17ms from Boardman, US
34.16.101.4	AS396982 Google LLC	0.11ms from Council Bluffs, US
41.72.138.4	AS37153 Xneelo (Pty) Ltd	0.13ms from Johannesburg, ZA
86.157.195.132	AS2856 British Telecommunications PLC	6.64ms from London, GB
5.81.255.4	AS2856 British Telecommunications PLC	3.02ms from London, GB
20.99.146.20	AS8075 Microsoft Corporation	0.21ms from Quincy, US
88.221.5.36	AS16625 Akamai Technologies, Inc.	4.25ms from Zuerich, CH
193.92.225.180	AS1241 Forthnet	11.48ms from Athens, GR
192.64.39.20	AS29988 Rogers Communications Canada Inc.	1.24ms from Calgary, CA
88.238.145.84	AS47331 TTNet A.S.	8.81ms from Istanbul, TR
92.24.90.4	AS13285 TalkTalk Communications Limited	5.27ms from London, GB
77.51.7.20	AS12389 PJSC Rostelecom	1.33ms from Moscow, RU
69.242.203.196	AS7922 Comcast Cable Communications, LLC	13.24ms from Tampa, US
83.47.158.212	AS3352 TELEFONICA DE ESPANA S.A.U.	8.13ms from Madrid, ES
1.70.19.180	AS4134 CHINANET-BACKBONE	5.83ms from Taiyuan, CN
220.150.124.116	AS4685 Asahi Net	7.95ms from Tokyo, JP
38.124.191.212	AS12183 Talkie Communications, Inc	5.41ms from Ashburn, US
84.144.103.84	AS3320 Deutsche Telekom AG	3.97ms from Frankfurt am Main, DE
39.39.243.244	AS17557 Pakistan Telecommunication Company Limited	18.66ms from Karachi, PK
46.150.29.20	AS47513 ISP Skyline	0.68ms from Kharkiv, UA
76.124.19.36	AS7922 Comcast Cable Communications, LLC	9.24ms from Secaucus, US
27.118.123.212	AS17573 SK Broadband Co Ltd	12.02ms from Seoul, KR
13.215.100.132	AS16509 Amazon.com, Inc.	0.11ms from Singapore, SG
108.18.198.116	AS701 Verizon Business	1.70ms from Ashburn, US
24.34.228.4	AS7922 Comcast Cable Communications, LLC	6.54ms from Boston, 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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