121.195.224.0/20
AS4538 · China Education and Research Network Center
Need more data or want to access it via API or data downloads? Sign up to get free access
Sign up for free ›Summary
| 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 2025-08-15 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: 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 2025-08-15 abuse-mailbox: abuse@cernet.edu.cn 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: 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: 121.194.0.0/16 descr: CERNET origin: AS4538 mnt-by: MAINT-CERNET-AP last-modified: 2009-01-05T03:10:57Z source: APNIC
Overlapping Ranges
BGP prefixes that contain 121.195.224.0/20
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 121.194.0.0/15 | AS4538 | China Education and Research Network | 131,072 |
Nearby Ranges
BGP prefixes that overlap with 121.195.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 121.194.0.0/15 | AS4538 | China Education and Research Network | 131,072 |
Hosted domains
There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|
Hosted domains API
Pingable IPs
29 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 121.195.239.1 |
5.46ms from Tianjin,
CN
|
|
| 121.195.229.28 |
4.57ms from Beijing,
CN
|
|
| 121.195.232.65 |
6.03ms from Beijing,
CN
|
|
| 121.195.234.157 |
4.53ms from Beijing,
CN
|
|
| 121.195.230.114 |
6.23ms from Beijing,
CN
|
|
| 121.195.224.86 |
5.45ms from Beijing,
CN
|
|
| 121.195.227.208 |
6.21ms from Beijing,
CN
|
|
| 121.195.235.13 |
5.05ms from Beijing,
CN
|
|
| 121.195.233.193 |
5.10ms from Beijing,
CN
|
|
| 121.195.231.60 |
5.40ms from Beijing,
CN
|
|
| 121.195.238.244 |
6.85ms from Beijing,
CN
|
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 |
|---|---|---|
| 91.126.218.20 |
1.13ms from Barcelona,
ES
|
|
| 117.196.2.180 |
13.78ms from Bengaluru,
IN
|
|
| 197.52.80.116 |
5.36ms from Cairo,
EG
|
|
| 113.0.96.36 |
10.08ms from Changchun,
CN
|
|
| 70.114.92.244 |
6.21ms from Dallas,
US
|
|
| 122.163.67.148 |
1.65ms from Kolkata,
IN
|
|
| 24.165.91.100 |
5.44ms from Los Angeles,
US
|
|
| 92.176.241.116 |
12.91ms from Madrid,
ES
|
|
| 159.26.112.68 |
0.35ms from Marseille,
FR
|
|
| 184.147.150.84 |
3.60ms from Montreal,
CA
|
|
| 4.251.123.132 |
0.35ms from Paris,
FR
|
|
| 175.118.210.212 |
6.26ms from Seoul,
KR
|
|
| 113.212.121.4 |
7.71ms from Singapore,
SG
|
|
| 23.46.114.212 |
0.18ms from Stockholm,
SE
|
|
| 219.114.189.228 |
9.14ms from Tokyo,
JP
|
|
| 41.42.201.196 |
5.10ms from Cairo,
EG
|
|
| 1.59.180.100 |
11.12ms from Changchun,
CN
|
|
| 96.27.225.212 |
11.01ms from Chicago,
US
|
|
| 185.178.233.4 |
0.32ms from Dronten,
NL
|
|
| 1.64.72.68 |
4.91ms from Hong Kong,
HK
|
|
| 185.216.114.100 |
3.73ms from Istanbul,
TR
|
|
| 95.148.59.68 |
3.92ms from London,
GB
|
|
| 178.94.254.164 |
0.25ms from Los Angeles,
US
|
|
| 75.206.110.244 |
15.67ms from Miami,
US
|
|
| 150.100.250.20 |
1.09ms from Tokyo,
JP
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Seoul, KR
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.
An API built with users in mind: reliable, accurate, and easy-to-use
Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.
Our IP tools
Explore all tools
Summarize IPs
Use our data visualization tool to create a visual overview of multiple IPs.
Try Summarize IPs