202.121.148.0/22
AS4538 · China Education and Research Network Center
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| 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 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
Hosted domains
There are no domains currently hosted on this ASN.
Hosted domains API
Pingable IPs
43 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 202.121.151.79 |
1.78ms from Shanghai,
CN
|
|
| 202.121.149.99 |
2.18ms from Shanghai,
CN
|
|
| 202.121.150.130 |
2.30ms 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 |
|---|---|---|
| 69.22.139.118 |
0.35ms from Amsterdam,
NL
|
|
| 59.94.231.134 |
11.75ms from Bengaluru,
IN
|
|
| 72.30.38.38 |
0.95ms from Buffalo,
US
|
|
| 139.211.133.230 |
6.90ms from Changchun,
CN
|
|
| 154.16.138.230 |
0.63ms from Chicago,
US
|
|
| 3.67.50.38 |
0.13ms from Frankfurt am Main,
DE
|
|
| 14.234.34.246 |
3.58ms from Ho Chi Minh City,
VN
|
|
| 171.248.228.166 |
1.43ms from Ho Chi Minh City,
VN
|
|
| 211.210.196.86 |
1.03ms from Incheon,
KR
|
|
| 138.43.240.102 |
1.28ms from Kansas City,
US
|
|
| 46.191.140.246 |
17.51ms from Moscow,
RU
|
|
| 65.100.10.198 |
10.40ms from Portland,
US
|
|
| 67.126.17.38 |
1.65ms from San Jose,
US
|
|
| 122.199.91.86 |
4.94ms from Seoul,
KR
|
|
| 177.63.192.246 |
1.88ms from São Paulo,
BR
|
|
| 124.95.96.118 |
9.11ms from Tieling,
CN
|
|
| 200.124.139.150 |
0.17ms from Willemstad,
CW
|
|
| 58.50.78.102 |
4.37ms from Wuhan,
CN
|
|
| 131.250.180.22 |
2.72ms from Ashburn,
US
|
|
| 192.99.46.86 |
0.07ms from Beauharnois,
CA
|
|
| 67.10.25.166 |
4.40ms from Dallas,
US
|
|
| 73.3.164.38 |
2.00ms from Denver,
US
|
|
| 40.127.248.198 |
0.14ms from Dublin,
IE
|
|
| 1.61.236.70 |
8.22ms from Harbin,
CN
|
|
| 84.251.77.6 |
1.26ms from Helsinki,
FI
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Zhangjiajie, 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.
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