219.219.248.0/21

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Registry	APNIC
ID	CERNET-CN

WHOIS Details

inetnum:        219.218.0.0 - 219.219.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Nanjing 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:  2020-10-20T00:56:50Z
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

Nearby Ranges

BGP prefixes that overlap with 219.219.0.0/16

No nearby ranges found.

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
51.105.144.37	AS8075 Microsoft Corporation	`1.18ms` from Amsterdam, NL
82.78.205.197	AS8708 DIGI ROMANIA S.A.	`2.21ms` from Bucharest, RO
4.245.238.85	AS8075 Microsoft Corporation	`0.17ms` from Dublin, IE
62.67.30.213	AS3356 Level 3 Parent, LLC	`0.34ms` from Frankfurt am Main, DE
2.241.68.181	AS6805 Telefonica Germany GmbH & Co.OHG	`1.18ms` from Hamburg, DE
203.215.160.149	AS17787 Pakistan Software Export Board	`0.79ms` from Islamabad, PK
212.170.255.5	AS3352 TELEFONICA DE ESPANA S.A.U.	`7.70ms` from Madrid, ES
212.176.125.69	AS2854 LLC Orange Business Services	`1.51ms` from Moscow, RU
106.180.214.37	AS2516 KDDI CORPORATION	`1.29ms` from Sendai, JP
222.71.199.245	AS4812 China Telecom (Group)	`3.03ms` from Shanghai, CN
42.52.176.197	AS4837 CHINA UNICOM China169 Backbone	`8.33ms` from Tieling, CN
133.162.115.197	AS55374 FUJITSU LIMITED	`3.77ms` from Tokyo, JP
84.84.58.181	AS1136 KPN B.V.	`2.30ms` from Amsterdam, NL
202.6.99.5	AS23901 HARMAN CONNECTED SERVICES CORPORATION INDIA PRIVATE LIMITED	`0.57ms` from Bengaluru, IN
52.10.178.37	AS16509 Amazon.com, Inc.	`0.20ms` from Boardman, US
140.221.9.197	AS683 Argonne National Laboratory	`1.17ms` from Chicago, US
108.200.154.245	AS7018 AT&T Enterprises, LLC	`4.37ms` from Dallas, US
20.218.254.5	AS8075 Microsoft Corporation	`0.29ms` from Frankfurt am Main, DE
213.182.84.133	AS21056 Vianova S.p.A	`11.52ms` from Frosinone, IT
76.72.35.229	AS25921 LUS Fiber	`4.83ms` from Houston, US
16.78.152.21	AS16509 Amazon.com, Inc.	`0.17ms` from Jakarta, ID
192.166.124.5	AS57244 OOO SP "Millenium-Apsny"	`5.76ms` from Krasnodar, RU
51.6.253.197	AS6871 Plusnet	`8.36ms` from London, GB
195.19.210.133	AS199602 LLC Gorodskoy supermarket	`1.58ms` from Moscow, RU
80.156.255.21	AS3320 Deutsche Telekom AG	`1.13ms` from Munich, DE

Traceroute

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

traceroute -a -n -q1 -f5 -m17 219.219.252.38

traceroute to 219.219.252.38 (219.219.252.38): 17 hops max, 52 byte packets

5 [AS56040] 120.241.248.77 2.823 ms

6 [AS9808] 221.183.63.65 9.663 ms

7 *

8 *

9 [AS9808] 221.183.151.254 32.631 ms

10 [AS4538] 101.4.116.97 53.748 ms

11 *

12 *

13 *

14 [AS4538] 219.219.148.162 56.494 ms

15 *

16 *

17 *

Measurement taken from

IPinfo ProbeNet in Shenzhen, CN

On April 25th 2026

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