202.121.176.0/22
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 |
| Registry | APNIC |
| ID | CERNET-CN |
WHOIS Details
inetnum: 202.112.0.0 - 202.121.255.255 netname: CERNET-CN descr: China Education and Research Network descr: China Education and Research Network Center descr: Tsinghua University descr: Beijing, 100084 country: CN admin-c: CER-AP tech-c: CER-AP abuse-c: AC1685-AP status: ALLOCATED PORTABLE remarks: origin AS4538 mnt-by: APNIC-HM mnt-lower: MAINT-CERNET-AP mnt-routes: MAINT-CERNET-AP mnt-irt: IRT-CERNET-AP last-modified: 2020-09-03T09:16:29Z source: APNIC irt: IRT-CERNET-AP address: Network Center, address: FIT-3-220, 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: abuse@cernet.edu.cn was validated on 2026-03-05 mnt-by: MAINT-CERNET-AP last-modified: 2026-03-05T06:39:56Z source: APNIC role: ABUSE CERNETAP country: ZZ address: Network Center, address: FIT-3-220, 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 2026-03-05 abuse-mailbox: abuse@cernet.edu.cn mnt-by: APNIC-ABUSE last-modified: 2026-03-05T06:40:20Z 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
Hosted domains
There are no domains currently hosted on this ASN.
Hosted domains API
Pingable IPs
87 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 202.121.179.157 |
1.66ms from Shanghai,
CN
|
|
| 202.121.178.21 |
1.74ms from Shanghai,
CN
|
|
| 202.121.176.88 |
1.60ms from Shanghai,
CN
|
|
| 202.121.177.75 |
1.75ms from Shanghai,
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 |
|---|---|---|
| 86.89.192.134 |
2.93ms from Amsterdam,
NL
|
|
| 184.32.69.6 |
0.16ms from Boardman,
US
|
|
| 97.107.196.86 |
0.40ms from Chicago,
US
|
|
| 76.248.43.214 |
3.41ms from Los Angeles,
US
|
|
| 20.64.249.198 |
0.30ms from Quincy,
US
|
|
| 38.159.188.6 |
12.76ms from Rio de Janeiro,
BR
|
|
| 52.53.54.102 |
0.15ms from San Jose,
US
|
|
| 104.42.232.198 |
0.57ms from San Jose,
US
|
|
| 37.110.182.22 |
1.35ms from Tbilisi,
GE
|
|
| 201.242.126.182 |
13.92ms from Willemstad,
CW
|
|
| 3.86.214.38 |
0.47ms from Ashburn,
US
|
|
| 52.3.198.38 |
0.50ms from Ashburn,
US
|
|
| 77.11.179.214 |
2.36ms from Berlin,
DE
|
|
| 201.253.240.102 |
17.52ms from Buenos Aires,
AR
|
|
| 167.89.253.22 |
4.00ms from Dallas,
US
|
|
| 123.207.74.102 |
2.19ms from Guangzhou,
CN
|
|
| 86.172.77.86 |
3.45ms from London,
GB
|
|
| 185.138.131.102 |
0.74ms from Novosibirsk,
RU
|
|
| 60.137.82.182 |
3.43ms from Osaka,
JP
|
|
| 76.144.183.118 |
5.23ms from Portland,
US
|
|
| 39.66.178.198 |
7.10ms from Qingdao,
CN
|
|
| 115.20.85.246 |
5.48ms from Seoul,
KR
|
|
| 43.138.71.134 |
1.96ms from Beijing,
CN
|
|
| 128.230.100.38 |
3.31ms from Buffalo,
US
|
|
| 109.85.60.102 |
0.39ms from Frankfurt am Main,
DE
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Denver, US
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