219.242.224.0/20

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	219.242.0.0/15
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 Center,
address:        FIT-3-220, 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:        abuse@cernet.edu.cn was validated on 2026-03-05
mnt-by:         MAINT-CERNET-AP
last-modified:  2026-03-05T06:39:56Z
source:         APNIC

role:           ABUSE CERNETAP
country:        ZZ
address:        Network Center,
address:        FIT-3-220, 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 2026-03-05
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2026-03-05T06:40:20Z
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 219.242.224.0/20

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 219.242.0.0/16

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

Hosted domains

There are no domains currently hosted on this ASN.

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

Read more

Pingable IPs

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

IP Address	ASN	Details
219.242.224.5	AS4538 China Education and Research Network Center	`2.61ms` 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
43.246.137.164	AS134326 Airdesign Broadcast Media Pvt Ltd	`7.88ms` from Bengaluru, IN
186.119.103.52	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`4.86ms` from Bogota, CO
75.162.114.164	AS209 CenturyLink Communications, LLC	`8.46ms` from Chicago, US
177.39.211.228	AS262433 QI Equipamentos para Informática Ltda.	`13.38ms` from Curitiba, BR
77.64.185.84	AS16202 Tele Columbus AG	`10.72ms` from Frankfurt am Main, DE
31.51.161.132	AS2856 British Telecommunications PLC	`3.21ms` from London, GB
162.138.212.148	AS26229 U.S. Securities & Exchange Commission	`1.78ms` from Newark, US
220.219.68.68	AS9997 Suzuka Cable Co.,Ltd	`3.29ms` from Osaka, JP
190.219.93.148	AS18809 Cable Onda	`7.90ms` from Panama, PA
73.177.237.68	AS7922 Comcast Cable Communications, LLC	`7.75ms` from Ashburn, US
43.208.178.36	AS16509 Amazon.com, Inc.	`1.61ms` from Bangkok, TH
101.188.147.164	AS1221 Telstra Limited	`9.19ms` from Brisbane, AU
191.85.72.132	AS22927 Telefonica de Argentina	`1.42ms` from Buenos Aires, AR
185.152.238.20	AS203329 NTT Global Data Centers EMEA GmbH	`2.25ms` from Frankfurt am Main, DE
115.143.140.52	AS17858 LG POWERCOMM	`1.85ms` from Incheon, KR
49.146.60.180	AS9299 Philippine Long Distance Telephone Company	`16.42ms` from Manila, PH
96.232.157.100	AS701 Verizon Business	`3.22ms` from New York City, US
111.86.157.116	AS2516 KDDI CORPORATION	`0.44ms` from Osaka, JP
3.85.176.116	AS14618 Amazon.com, Inc.	`0.59ms` from Reston, US
87.70.164.84	AS12400 Partner Communications Ltd.	`2.03ms` from Rosh Ha‘Ayin, IL
168.99.222.196	AS30075 Lake Washington School District #414	`1.68ms` from Seattle, US
203.125.41.36	AS3758 SingNet	`1.57ms` from Singapore, SG
203.137.133.52	AS4694 IDC Frontier Inc.	`0.85ms` from Tokyo, JP
27.18.167.148	AS4134 CHINANET-BACKBONE	`2.44ms` from Wuhan, CN
116.211.204.4	AS58563 CHINANET Hubei province network	`1.43ms` from Wuhan, CN

Traceroute

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

traceroute -a -n -q1 -f2 -m12 219.242.235.109

traceroute to 219.242.235.109 (219.242.235.109): 12 hops max, 52 byte packets

2 [] 123.255.91.84 197.348 ms

3 *

4 [AS174] 38.150.75.1 193.951 ms

5 [AS4538] 101.4.114.181 227.425 ms

6 *

7 *

8 [AS4538] 101.4.113.201 223.424 ms

9 [AS4538] 219.242.224.6 226.839 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in Zuerich, CH

On March 20th 2026

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