121.49.199.0/24

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Parent Range 121.48.0.0/15
Registry APNIC
ID CDR-CERNET

WHOIS Details

inetnum:        121.48.0.0 - 121.49.255.255
netname:        CDR-CERNET
descr:          China Education and Research Network
descr:          Chengdu 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:  2020-09-03T09:16:00Z
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:          121.49.0.0/16
descr:          CERNET
origin:         AS4538
mnt-by:         MAINT-CERNET-AP
last-modified:  2009-01-05T03:10:57Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 121.49.199.0/24

Range ASN Company Num of IPs
121.48.0.0/15 AS4538 China Education and Research Network 131,072

Nearby Ranges

BGP prefixes that overlap with 121.49.0.0/16

Range ASN Company Num of IPs
121.48.0.0/15 AS4538 China Education and Research Network 131,072
121.49.64.0/18 AS4538 China Education and Research Network 16,384
121.49.160.0/19 AS4538 China Education and Research Network 8,192
121.49.16.0/20 AS4538 China Education and Research Network 4,096
121.49.32.0/21 AS4538 China Education and Research Network 2,048
121.49.200.0/21 AS4538 China Education and Research Network 2,048
121.49.0.0/22 AS4538 China Education and Research Network 1,024
121.49.5.0/24 AS4538 China Education and Research Network 256
121.49.198.0/24 AS4538 China Education and Research Network 256
121.49.152.0/24 AS4538 China Education and Research Network 256
121.49.197.0/24 AS4538 China Education and Research Network 256
121.49.0.0/24 AS4538 China Education and Research Network 256
121.49.4.0/24 AS4538 China Education and Research Network 256
121.49.128.0/24 AS4538 China Education and Research Network 256
121.49.195.0/24 AS4538 China Education and Research Network 256
121.49.193.0/24 AS4538 China Education and Research Network 256
121.49.153.0/24 AS4538 China Education and Research Network 256
121.49.192.0/24 AS4538 China Education and Research Network 256
121.49.196.0/24 AS4538 China Education and Research Network 256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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
160.177.238.8 AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM 9.16ms from Casablanca, MA
175.149.225.104 AS4837 CHINA UNICOM China169 Backbone 12.06ms from Dalian, CN
35.154.40.24 AS16509 Amazon.com, Inc. 0.13ms from Mumbai, IN
3.236.106.88 AS14618 Amazon.com, Inc. 0.38ms from Reston, US
72.72.106.88 AS701 Verizon Business 1.80ms from Boston, US
2.55.64.72 AS12400 Partner Communications Ltd. 11.33ms from Tel Aviv, IL
82.23.102.216 AS812 Rogers Communications Canada Inc. 0.66ms from Toronto, CA
62.108.195.168 AS51132 Arkaden Konsult AB 4.18ms from Umea, SE
125.45.94.184 AS4837 CHINA UNICOM China169 Backbone 6.35ms from Zhengzhou, CN
85.2.198.248 AS3303 Swisscom (Switzerland) Ltd 1.74ms from Zuerich, CH
116.119.76.72 AS9498 BHARTI Airtel Ltd. 0.46ms from Delhi, IN
179.58.166.120 AS28024 Nuevatel PCS de Bolivia S.A. 13.33ms from La Paz, BO
108.179.58.248 AS40513 Edge Technology Group, LLC 1.61ms from New York City, US
104.3.188.168 AS7018 AT&T Enterprises, LLC 3.79ms from San Jose, US
1.216.243.168 AS3786 LG DACOM Corporation 1.32ms from Seoul, KR
185.198.16.184 AS62031 Tomasz Gasior trading as Sownet 7.12ms from Warsaw, PL
178.200.53.152 AS3209 Vodafone GmbH 4.55ms from Frankfurt am Main, DE
117.141.80.40 AS9808 China Mobile Communications Group Co., Ltd. 6.11ms from Nanning, CN
20.230.69.104 AS8075 Microsoft Corporation 0.34ms from Boydton, US
20.94.119.200 AS8075 Microsoft Corporation 0.40ms from Boydton, US
97.167.120.184 AS6167 Verizon Business 8.38ms from Los Angeles, US
88.7.6.72 AS3352 TELEFONICA DE ESPANA S.A.U. 6.86ms from Madrid, ES
212.109.8.104 AS42387 Limited Company Svyazservice 6.09ms from Saint Petersburg, RU
221.164.127.216 AS4766 Korea Telecom 6.22ms from Seoul, KR
52.69.31.216 AS16509 Amazon.com, Inc. 0.19ms from Tokyo, JP

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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