219.243.176.0/22

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	219.242.0.0/15
Registry	APNIC
ID	CERNET-CN

WHOIS Details

inetnum:        219.242.0.0 - 219.243.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Beijing 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:  2020-10-20T00:56:47Z
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 2025-08-15
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-11-18T00:26:28Z
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 2025-08-15
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-15T09:38:28Z
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 219.243.176.0/22

Range	ASN	Company	Num of IPs
219.242.0.0/15	AS4538	China Education and Research Network	131,072

Nearby Ranges

BGP prefixes that overlap with 219.243.0.0/16

Range	ASN	Company	Num of IPs
219.242.0.0/15	AS4538	China Education and Research Network	131,072

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
219.243.176.1	sxyk.edu.cn	1

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

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

IP Address	ASN	Details
219.243.176.6	AS4538 China Education and Research Network Center	`10.52ms` 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
139.155.76.70	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.81ms` from Chengdu, CN
79.242.3.86	AS3320 Deutsche Telekom AG	`4.72ms` from Duesseldorf, DE
185.177.61.182	AS29222 Infomaniak Network SA	`0.73ms` from Geneve, CH
211.97.82.70	AS4837 CHINA UNICOM China169 Backbone	`9.35ms` from Guiyang, CN
78.135.79.198	AS42910 PremierDC Veri Merkezi Anonim Sirketi	`0.38ms` from Istanbul, TR
90.254.215.6	AS5378 Vodafone Limited	`3.71ms` from London, GB
104.33.68.70	AS20001 Charter Communications Inc	`7.83ms` from Los Angeles, US
108.170.78.214	AS6128 Cablevision Systems Corp.	`2.60ms` from New York City, US
24.18.225.198	AS7922 Comcast Cable Communications, LLC	`4.32ms` from Seattle, US
153.214.7.86	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.42ms` from Tokyo, JP
60.60.21.134	AS9824 JCOM Co., Ltd.	`12.10ms` from Tokyo, JP
172.174.63.86	AS8075 Microsoft Corporation	`0.65ms` from Ashburn, US
213.253.207.22	AS12301 Invitech ICT Services Kft.	`0.44ms` from Budapest, HU
75.192.25.118	AS6167 Verizon Business	`15.03ms` from Chicago, US
66.186.213.150	AS393552 Longmont Power & Communications	`2.57ms` from Denver, US
45.177.140.198	AS266520 VOOB TELECOM	`18.95ms` from Fortaleza, BR
109.221.80.150	AS3215 Orange S.A.	`12.93ms` from Frankfurt am Main, DE
202.81.252.70	AS4658 2012 Limited / Netfront	`1.08ms` from Hong Kong, HK
27.113.39.246	AS9781 GREEN CABLE TELEVISION STATION	`5.66ms` from Incheon, KR
80.91.193.166	AS21226 Krasnoyarsky PTUS ZAO	`0.65ms` from Krasnoyarsk, RU
136.230.101.118	AS245 Planning Research Corporation	`0.06ms` from Manassas, US
74.64.9.38	AS12271 Charter Communications Inc	`3.75ms` from New York City, US
69.242.207.22	AS7922 Comcast Cable Communications, LLC	`15.47ms` from Orlando, US
201.16.162.166	AS16735 ALGAR TELECOM S/A	`3.10ms` from Osasco, BR
176.160.58.6	AS5410 Bouygues Telecom SA	`2.00ms` from Paris, FR

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f6 219.243.176.17

traceroute to 219.243.176.17 (219.243.176.17): 64 hops max, 52 byte packets

6 [AS4538] 101.4.130.101 2.961 ms

7 [AS4538] 219.224.103.66 3.02 ms

8 [AS4538] 101.4.114.122 12.229 ms

9 *

10 [AS4538] 202.112.38.186 13.238 ms

11 [AS4538] 219.243.176.17 12.18 ms

Measurement taken from

IPinfo ProbeNet in Beijing, CN

On January 19th 2026

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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