42.244.0.0/16

AS4538 · China Education and Research Network Center

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Summary

Country	China
Domain	cernet.edu.cn
ASN	AS4538
Registry	apnic
Hosted IPs	65,536
ID	NJR-CERNET

WHOIS Details

inetnum:        42.244.0.0 - 42.247.255.255
netname:        NJR-CERNET
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
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:  2020-09-03T09:16:28Z
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:         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:        http://www.ccert.edu.cn
remarks:        abuse@cernet.edu.cn 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:         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 2025-01-22
abuse-mailbox:  abuse@cernet.edu.cn
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:         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

route:          42.246.0.0/15
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2017-03-14T04:00:08Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 42.0.0.0/8

Range	ASN	Company	Num of IPs
42.16.0.0/12	AS9644	SK Telecom	1,048,576
42.32.0.0/12	AS9644	SK Telecom	1,048,576
42.224.0.0/12	AS4837	China Unicom Henan province network	1,048,576
42.144.0.0/13	AS9824	JCOM Co., Ltd.	524,288
42.104.0.0/13	AS38266	Vodafone Idea Ltd	524,288
42.112.0.0/13	AS18403	FPT Telecom Company	524,288
42.176.0.0/13	AS4837	UNICOM Liaoning Province Network	524,288
42.188.0.0/14	AS4788	TM TECHNOLOGY SERVICES SDN. BHD.	262,144
42.56.0.0/14	AS4837	UNICOM Liaoning Province Network	262,144
42.84.0.0/14	AS4837	UNICOM Liaoning Province Network	262,144
42.4.0.0/14	AS4837	UNICOM Liaoning Province Network	262,144
42.52.0.0/14	AS4837	UNICOM Liaoning Province Network	262,144
42.2.0.0/15	AS4760	PCCW Limited	131,072
42.80.0.0/15	AS17638	CHINANET TIANJIN PROVINCE NETWORK	131,072
42.92.0.0/15	AS4134	CHINANET Gansu province network	131,072
42.246.0.0/15	AS4538	China Education and Research Network	131,072
42.242.0.0/15	AS4134	CHINANET YunNan PROVINCE NETWORK	131,072
42.90.0.0/15	AS4134	CHINANET Gansu province network	131,072
42.48.0.0/15	AS4837	China Unicom HuNan province network	131,072
42.248.0.0/15	AS4134	CHINANET Liaoning province network	131,072
42.202.0.0/15	AS4134	CHINANET Liaoning province network	131,072
42.100.0.0/15	AS4134	CHINANET HEILONGJIANG PROVINCE NETWORK	131,072
42.192.0.0/15	AS45090	Tencent cloud computing (Beijing) Co., Ltd.	131,072
42.88.0.0/15	AS4134	CHINANET Gansu province network	131,072
42.74.0.0/16	AS17421	Mobile Business Group	65,536
42.121.0.0/16	AS37963	Aliyun Computing Co., LTD	65,536
42.200.0.0/16	AS4515	PCCW IMS Ltd (PCCW Business Internet Access)	65,536
42.159.0.0/16	AS58593	Shanghai Blue Cloud Technology Co.,Ltd	65,536
42.124.0.0/16	AS10010	TOKAI Communications Corporation	65,536
42.147.0.0/16	AS9824	JCOM Co., Ltd.	65,536
42.115.0.0/16	AS18403	FPT Telecom Company	65,536
42.103.0.0/16	AS4134	CHINANET HEILONGJIANG PROVINCE NETWORK	65,536
42.120.0.0/16	AS37963	Zhejiang Taobao Network Co.,Ltd	65,536
42.3.0.0/16	AS4760	Hong Kong Telecommunications (HKT) Limited Mass Internet	65,536
42.126.0.0/16	AS10010	TOKAI Communications Corporation	65,536
42.2.0.0/16	AS4760	Hong Kong Telecommunications (HKT) Limited Mass Internet	65,536
42.158.0.0/16	AS23724	21ViaNet(China),Inc.	65,536
42.148.0.0/16	AS9824	JCOM Co., Ltd.	65,536
42.112.0.0/16	AS18403	FPT Telecom Company	65,536
42.119.0.0/16	AS18403	FPT Telecom Company	65,536
42.102.0.0/16	AS4134	CHINANET HEILONGJIANG PROVINCE NETWORK	65,536
42.116.0.0/16	AS18403	FPT Telecom Company	65,536
42.146.0.0/16	AS9824	JCOM Co., Ltd.	65,536
42.122.0.0/16	AS17638	CHINANET TIANJIN PROVINCE NETWORK	65,536
42.118.0.0/16	AS18403	FPT Telecom Company	65,536
42.98.0.0/16	AS4760	PCCW Limited	65,536
42.75.0.0/16	AS17421	Mobile Business Group	65,536
42.144.0.0/16	AS9824	JCOM Co., Ltd.	65,536
42.184.0.0/16	AS4134	CHINANET HEILONGJIANG PROVINCE NETWORK	65,536

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