1.185.64.0/19

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	1.184.0.0/15
Registry	APNIC
ID	GZR-CERNET

WHOIS Details

inetnum:        1.184.0.0 - 1.185.255.255
netname:        GZR-CERNET
descr:          China Education and Research Network
descr:          Guangzhou 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:  2020-09-03T09:16:21Z
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

route:          1.184.0.0/15
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2010-06-08T06:42:01Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 1.185.64.0/19

Range	ASN	Company	Num of IPs
1.184.0.0/15	AS4538	China Education and Research Network	131,072

Nearby Ranges

BGP prefixes that overlap with 1.185.0.0/16

Range	ASN	Company	Num of IPs
1.184.0.0/15	AS4538	China Education and Research Network	131,072

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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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
68.190.20.131	AS20115 Charter Communications LLC	`13.14ms` from Atlanta, US
24.14.223.3	AS7922 Comcast Cable Communications, LLC	`8.70ms` from Chicago, US
27.11.47.19	AS4837 CHINA UNICOM China169 Backbone	`1.61ms` from Chongqing, CN
142.93.110.99	AS14061 DigitalOcean, LLC	`0.30ms` from Frankfurt am Main, DE
92.140.151.211	AS3215 Orange S.A.	`5.36ms` from Frankfurt am Main, DE
146.60.203.115	AS3209 Vodafone GmbH	`4.60ms` from Hamburg, DE
121.145.85.163	AS4766 Korea Telecom	`6.71ms` from Incheon, KR
98.0.158.163	AS12271 Charter Communications Inc	`2.28ms` from New York City, US
174.23.253.99	AS209 CenturyLink Communications, LLC	`1.55ms` from Salt Lake City, US
221.144.22.227	AS4766 Korea Telecom	`5.54ms` from Seoul, KR
46.39.156.3	AS51504 AS Telset	`3.82ms` from Tallinn, EE
110.66.111.227	AS2527 Sony Network Communications Inc.	`1.97ms` from Tokyo, JP
68.98.174.19	AS22773 Cox Communications Inc.	`5.14ms` from Ashburn, US
177.100.105.67	AS28573 Claro NXT Telecomunicacoes Ltda	`13.11ms` from Brasilia, BR
162.209.85.3	AS19994 Rackspace Hosting	`1.33ms` from Chicago, US
62.159.39.179	AS3320 Deutsche Telekom AG	`1.73ms` from Duesseldorf, DE
24.130.136.99	AS7922 Comcast Cable Communications, LLC	`2.62ms` from Fremont, US
94.23.164.163	AS16276 OVH SAS	`0.05ms` from Gravelines, FR
83.34.119.163	AS3352 TELEFONICA DE ESPANA S.A.U.	`9.01ms` from Madrid, ES
95.247.136.51	AS3269 Telecom Italia S.p.A.	`2.19ms` from Milan, IT
60.99.221.179	AS17676 SoftBank Corp.	`3.80ms` from Osaka, JP
119.26.137.67	AS9617 JCOM Co., Ltd.	`2.62ms` from Osaka, JP
90.54.192.243	AS3215 Orange S.A.	`7.13ms` from Paris, FR
93.147.11.83	AS30722 Fastweb SpA	`4.91ms` from Rome, IT
120.79.212.243	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.15ms` from Shenzhen, CN

Traceroute

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

traceroute -a -n -q1 -f6 -m15 1.185.71.59

traceroute to 1.185.71.59 (1.185.71.59): 15 hops max, 52 byte packets

6 [AS4538] 101.4.131.17 6.846 ms

7 [AS4538] 219.224.102.217 7.066 ms

8 [AS4538] 101.4.117.41 22.327 ms

9 *

10 [AS4538] 101.4.112.45 33.795 ms

11 *

12 [AS4538] 101.4.118.154 45.449 ms

13 *

14 *

15 *

Measurement taken from

IPinfo ProbeNet in Hangzhou, CN

On January 30th 2026

What are IP address ranges?

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