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:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        http://www.ccert.edu.cn
remarks:        [email protected] 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:         [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
nic-hdl:        AC1685-AP
remarks:        Generated from irt object IRT-CERNET-AP
remarks:        [email protected] was validated on 2025-08-15
abuse-mailbox:  [email protected]
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:         [email protected]
remarks:        [email protected]
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

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
219.244.128.12	AS4538 China Education and Research Network Center	`17.57ms` 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
147.102.72.20	AS3323 National Technical University of Athens	`1.76ms` from Athens, GR
161.116.234.20	AS13041 Consorci de Serveis Universitaris de Catalunya	`1.52ms` from Barcelona, ES
95.85.186.180	AS41897 Sat-Trakt D.O.O.	`11.51ms` from Belgrade, RS
139.45.163.4	AS5091 Stripe, Inc.	`1.46ms` from Berlin, DE
118.209.255.84	AS7545 TPG Telecom Limited	`1.64ms` from Brisbane, AU
109.180.159.148	AS2856 British Telecommunications PLC	`4.90ms` from Erith, GB
67.167.179.68	AS7922 Comcast Cable Communications, LLC	`4.70ms` from Flint, US
96.50.251.84	AS6327 Shaw Communications	`8.50ms` from Kelowna, CA
95.159.227.20	AS5603 Telekom Slovenije, d.d.	`8.00ms` from Ljubljana, SI
85.60.32.164	AS12479 Orange Espagne SA	`9.78ms` from Madrid, ES
179.107.38.132	AS15830 Equinix (EMEA) Acquisition Enterprises B.V.	`0.66ms` from Rio de Janeiro, BR
179.184.131.52	AS18881 TELEFÔNICA BRASIL S.A	`11.28ms` from Rio de Janeiro, BR
153.90.201.132	AS13476 Montana State University	`14.69ms` from Seattle, US
222.122.142.180	AS4766 Korea Telecom	`1.32ms` from Seoul, KR
20.227.89.100	AS8075 Microsoft Corporation	`0.68ms` from Sydney, AU
31.21.132.132	AS50266 Odido Netherlands B.V.	`3.65ms` from Amsterdam, NL
69.165.88.4	AS13845 eStruxture Data Centers Inc.	`0.52ms` from Calgary, CA
141.109.167.244	AS40934 Fortinet Inc.	`1.44ms` from Dallas, US
93.236.141.196	AS3320 Deutsche Telekom AG	`5.22ms` from Frankfurt am Main, DE
14.160.105.212	AS45899 VNPT Corp	`2.07ms` from Ho Chi Minh City, VN
39.104.104.84	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.15ms` from Hohhot, CN
149.88.162.52	AS10103 HK Broadband Network Ltd.	`0.48ms` from Hong Kong, HK
70.173.199.84	AS22773 Cox Communications Inc.	`9.52ms` from Los Angeles, US
89.189.177.36	AS34757 Sibirskie Seti Ltd.	`0.81ms` from Novosibirsk, RU
65.96.13.52	AS19855 Masergy Communications, Inc.	`3.17ms` from Singapore, SG

Traceroute

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

traceroute -a -n -q1 -m15 219.244.131.241

traceroute to 219.244.131.241 (219.244.131.241): 15 hops max, 52 byte packets

1 [AS15169] 72.14.239.92 134.09 ms

2 [] 123.255.91.84 133.311 ms

3 *

4 [AS174] 38.150.75.1 144.396 ms

5 [AS4538] 101.4.114.181 182.699 ms

6 *

7 *

8 *

9 [AS4538] 101.4.112.14 197.751 ms

10 *

11 *

12 [AS4538] 202.200.28.30 195.158 ms

13 *

14 *

15 *

Measurement taken from

IPinfo ProbeNet in The Dalles, US

On December 6th 2025

What are IP address ranges?

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