202.118.32.0/21
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 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
260 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 202.118.32.92 |
6.08ms from Liaoyang,
CN
|
|
| 202.118.39.1 |
6.91ms from Dalian,
CN
|
|
| 202.118.33.126 |
2.09ms from Liaoyang,
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 |
|---|---|---|
| 172.199.63.149 |
0.28ms from Amsterdam,
NL
|
|
| 54.148.234.197 |
0.16ms from Boardman,
US
|
|
| 181.174.155.53 |
10.90ms from Buenos Aires,
AR
|
|
| 108.75.174.21 |
3.01ms from Chicago,
US
|
|
| 135.130.98.165 |
1.71ms from Chicago,
US
|
|
| 54.246.68.165 |
0.24ms from Dublin,
IE
|
|
| 52.48.148.245 |
0.20ms from Dublin,
IE
|
|
| 196.216.74.37 |
0.61ms from Nairobi,
KE
|
|
| 117.63.179.229 |
5.48ms from Nanjing,
CN
|
|
| 126.109.142.101 |
8.87ms from Osaka,
JP
|
|
| 180.38.194.181 |
12.88ms from Osaka,
JP
|
|
| 79.161.69.69 |
7.58ms from Oslo,
NO
|
|
| 61.74.192.101 |
0.86ms from Seoul,
KR
|
|
| 35.75.5.53 |
1.08ms from Tokyo,
JP
|
|
| 189.248.87.69 |
8.22ms from Tucson,
US
|
|
| 113.140.111.229 |
3.92ms from Xi'an,
CN
|
|
| 84.116.3.5 |
1.34ms from Amsterdam,
NL
|
|
| 141.140.64.213 |
0.96ms from Ashburn,
US
|
|
| 111.163.217.197 |
4.67ms from Beijing,
CN
|
|
| 165.166.37.5 |
0.83ms from Charlotte,
US
|
|
| 124.230.43.21 |
5.92ms from Chenzhou,
CN
|
|
| 75.102.246.245 |
0.75ms from Chicago,
US
|
|
| 67.184.27.85 |
5.48ms from Chicago,
US
|
|
| 74.138.238.213 |
16.47ms from Columbus,
US
|
|
| 212.185.59.37 |
3.33ms 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 Zhongwei, 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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