121.194.112.0/20
AS4538 · China Education and Research Network Center
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Country |
China
|
Domain | cernet.edu.cn |
ASN | AS4538 |
Parent Range | 121.194.0.0/15 |
Registry | APNIC |
ID | BJR-CERNET |
WHOIS Details
inetnum: 121.194.0.0 - 121.195.255.255 netname: BJR-CERNET descr: China Education and Research Network descr: Beijing 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: 2020-09-03T09:16:22Z 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: 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: 121.195.0.0/16 descr: CERNET origin: AS4538 mnt-by: MAINT-CERNET-AP last-modified: 2009-01-05T03:10:57Z source: APNIC
Overlapping Ranges
BGP prefixes that contain 121.194.112.0/20
Range | ASN | Company | Num of IPs |
---|---|---|---|
121.194.0.0/15 | AS4538 | China Education and Research Network | 131,072 |
121.192.0.0/14 | AS4538 | China Education and Research Network | 262,144 |
Nearby Ranges
BGP prefixes that overlap with 121.194.0.0/16
Range | ASN | Company | Num of IPs |
---|---|---|---|
121.192.0.0/14 | AS4538 | China Education and Research Network | 262,144 |
121.194.0.0/15 | AS4538 | China Education and Research Network | 131,072 |
121.194.224.0/19 | AS4538 | China Education and Research Network | 8,192 |
121.194.192.0/19 | AS4538 | China Education and Research Network | 8,192 |
121.194.0.0/20 | AS4538 | China Education and Research Network | 4,096 |
121.194.16.0/20 | AS4538 | China Education and Research Network | 4,096 |
121.194.64.0/20 | AS4538 | China Education and Research Network | 4,096 |
121.194.96.0/20 | AS4538 | China Education and Research Network | 4,096 |
121.194.32.0/20 | AS4538 | China Education and Research Network | 4,096 |
121.194.176.0/20 | AS4538 | China Education and Research Network | 4,096 |
121.194.144.0/20 | AS4538 | China Education and Research Network | 4,096 |
121.194.48.0/20 | AS4538 | China Education and Research Network | 4,096 |
121.194.80.0/21 | AS4538 | China Education and Research Network | 2,048 |
121.194.92.0/22 | AS4538 | China Education and Research Network | 1,024 |
121.194.88.0/22 | AS4538 | China Education and Research Network | 1,024 |
121.194.172.0/22 | AS4538 | China Education and Research Network | 1,024 |
121.194.174.0/23 | AS4538 | China Education and Research Network | 512 |
121.194.172.0/23 | AS4538 | China Education and Research Network | 512 |
121.194.167.0/24 | AS4538 | China Education and Research Network | 256 |
121.194.4.0/24 | AS4538 | China Education and Research Network | 256 |
121.194.4.0/24 | AS133111 | China Education and Research Network | 256 |
Hosted domains
There are no domains currently hosted on this ASN.
Hosted domains API
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 |
---|---|---|
52.166.6.68 | 0.21ms from Amsterdam, NL | |
47.26.10.164 | 10.06ms from Chicago, US | |
24.4.1.228 | 9.95ms from Fremont, US | |
62.106.6.68 | 5.78ms from Helsinki, FI | |
212.140.81.244 | 1.68ms from London, GB | |
92.25.170.20 | 6.92ms from Manchester, GB | |
164.215.8.100 | 6.46ms from Nicosia, CY | |
93.30.33.196 | 12.61ms from Paris, FR | |
27.24.187.244 | 3.84ms from Wuhan, CN | |
213.243.170.36 | 9.45ms from Helsinki, FI | |
184.189.241.68 | 8.95ms from Los Angeles, US | |
212.9.24.52 | 7.28ms from Paris, FR | |
210.108.10.4 | 1.39ms from Seoul, KR | |
157.230.37.148 | 0.25ms from Singapore, SG | |
61.53.125.228 | 3.53ms from Zhengzhou, CN | |
195.229.199.4 | 2.22ms from Al Fujairah City, AE | |
68.83.178.68 | 8.18ms from Ashburn, US | |
195.143.183.196 | 0.38ms from Frankfurt am Main, DE | |
157.97.23.20 | 1.58ms from Hafnarfjoerdur, IS | |
113.169.18.212 | 2.56ms from Ho Chi Minh City, VN | |
181.131.17.148 | 7.25ms from Medellin, CO | |
3.235.207.212 | 0.24ms from Reston, US | |
179.190.9.4 | 0.37ms from Sao Paulo, BR | |
58.65.68.36 | 7.17ms from Seoul, KR | |
113.119.84.116 | 1.89ms from Guangzhou, CN |
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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