49.141.144.0/21

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Parent Range	49.140.0.0/15
Registry	APNIC
ID	SYR-CERNET

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
102.220.223.5	AS328842 ProData Africa Limited	0.27ms from Accra, GH
100.42.27.21	AS54098 LIONLINK NETWORKS	0.24ms from Ashburn, US
209.3.180.213	AS209 CenturyLink Communications, LLC	1.01ms from Atlanta, US
190.85.75.245	AS14080 Telmex Colombia S.A.	1.21ms from Bogota, CO
181.49.248.197	AS14080 Telmex Colombia S.A.	1.08ms from Bogota, CO
109.134.49.133	AS5432 Proximus NV	5.04ms from Gravelines, FR
98.44.235.133	AS7922 Comcast Cable Communications, LLC	8.01ms from Houston, US
200.100.55.165	AS27699 TELEFÔNICA BRASIL S.A	2.69ms from Osasco, BR
73.117.142.213	AS7922 Comcast Cable Communications, LLC	14.95ms from Reston, US
51.211.214.149	AS25019 Saudi Telecom Company JSC	1.90ms from Riyadh, SA
68.67.154.21	AS29990 Xandr Inc.	0.25ms from Secaucus, US
222.187.93.53	AS4134 CHINANET-BACKBONE	11.64ms from Shanghai, CN
81.204.106.69	AS1136 KPN B.V.	1.42ms from Amsterdam, NL
87.14.61.133	AS3269 Telecom Italia S.p.A.	4.07ms from Milan, IT
57.150.114.149	AS8075 Microsoft Corporation	0.43ms from Santiago, CL
132.248.139.21	AS278 Universidad Nacional Autonoma de Mexico	3.83ms from Santiago de Queretaro, MX
187.200.17.101	AS8151 UNINET	9.07ms from Santiago de Queretaro, MX
189.10.7.69	AS8167 V tal	0.76ms from Brasilia, BR
81.182.35.37	AS5483 Magyar Telekom Plc.	7.08ms from Budapest, HU
20.221.51.213	AS8075 Microsoft Corporation	0.43ms from Des Moines, US
204.242.75.69	AS3320 Deutsche Telekom AG	0.67ms from Frankfurt am Main, DE
81.179.217.53	AS9105 TalkTalk Communications Limited	3.75ms from Manchester, GB
137.184.93.21	AS14061 DigitalOcean, LLC	0.28ms from Santa Clara, US
119.69.157.165	AS17858 LG POWERCOMM	1.89ms from Seoul, KR
180.169.64.197	AS4812 China Telecom (Group)	3.25ms from Shanghai, CN

WHOIS Details

inetnum:        49.140.0.0 - 49.141.255.255
netname:        SYR-CERNET
descr:          China Education and Research Network
descr:          Shenyang Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
remarks:        confederation
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:22Z
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 2025-01-22
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-01-22T13:47:43Z
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 2025-01-22
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-01-22T16:25:45Z
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:          49.140.0.0/15
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2010-10-29T01:48:01Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 49.141.144.0/21

Range	ASN	Company	Num of IPs
49.140.0.0/15	AS4538	China Education and Research Network	131,072

Nearby Ranges

BGP prefixes that overlap with 49.141.0.0/16

Range	ASN	Company	Num of IPs
49.140.0.0/15	AS4538	China Education and Research Network	131,072
49.141.64.0/18	AS4538	China Education and Research Network	16,384
49.141.0.0/20	AS4538	China Education and Research Network	4,096
49.141.128.0/20	AS4538	China Education and Research Network	4,096
49.141.192.0/20	AS4538	China Education and Research Network	4,096
49.141.32.0/20	AS4538	China Education and Research Network	4,096
49.141.24.0/21	AS4538	China Education and Research Network	2,048
49.141.16.0/21	AS4538	China Education and Research Network	2,048
49.141.210.0/24	AS4538	China Education and Research Network	256

Hosted domains

There are no domains currently hosted on this ASN.

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What are IP address ranges?

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