121.250.50.0/24
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 | 121.248.0.0/14 |
| Registry | APNIC |
| ID | NJR-CERNET |
WHOIS Details
inetnum: 121.248.0.0 - 121.251.255.255 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: 2020-09-03T09:15:58Z 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: 121.250.0.0/15 descr: CERNET origin: AS4538 mnt-by: MAINT-CERNET-AP last-modified: 2009-01-05T03:10:57Z source: APNIC
Overlapping Ranges
BGP prefixes that contain 121.250.50.0/24
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 121.248.0.0/14 | AS4538 | China Education and Research Network | 262,144 |
Nearby Ranges
BGP prefixes that overlap with 121.250.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 121.248.0.0/14 | AS4538 | China Education and Research Network | 262,144 |
Hosted domains
There are no domains currently hosted on this ASN.
Hosted domains API
Pingable IPs
39 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 121.250.50.69 |
5.64ms from Qingdao,
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 |
|---|---|---|
| 81.0.21.88 |
2.65ms from Barcelona,
ES
|
|
| 35.225.124.56 |
0.12ms from Council Bluffs,
US
|
|
| 74.133.76.232 |
16.02ms from Flint,
US
|
|
| 217.250.0.88 |
4.24ms from Frankfurt am Main,
DE
|
|
| 23.197.169.136 |
0.46ms from Miami,
US
|
|
| 179.147.134.200 |
2.36ms from Novo Hamburgo,
BR
|
|
| 44.216.221.104 |
0.19ms from Reston,
US
|
|
| 98.51.118.248 |
6.62ms from San Jose,
US
|
|
| 220.83.128.184 |
2.25ms from Seoul,
KR
|
|
| 54.200.207.104 |
0.19ms from Boardman,
US
|
|
| 162.193.48.232 |
18.21ms from Chicago,
US
|
|
| 91.207.224.8 |
12.37ms from Krasnodar,
RU
|
|
| 210.195.254.56 |
2.46ms from Kuala Lumpur,
MY
|
|
| 119.116.191.184 |
9.66ms from Liaoyang,
CN
|
|
| 3.10.11.136 |
0.17ms from London,
GB
|
|
| 79.152.228.56 |
8.72ms from Madrid,
ES
|
|
| 82.58.184.56 |
3.15ms from Milan,
IT
|
|
| 83.171.212.104 |
0.34ms from Moscow,
RU
|
|
| 60.184.188.248 |
9.60ms from Ningbo,
CN
|
|
| 31.189.156.24 |
13.52ms from Rome,
IT
|
|
| 41.213.136.120 |
1.60ms from Saint-Denis,
RE
|
|
| 49.27.105.24 |
7.25ms from Seoul,
KR
|
|
| 220.81.15.184 |
4.47ms from Seoul,
KR
|
|
| 20.196.197.152 |
0.32ms from Seoul,
KR
|
|
| 212.107.147.184 |
0.60ms from Stockholm,
SE
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Qingdao, 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.
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