202.121.224.0/20
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: [email protected] abuse-mailbox: [email protected] admin-c: CER-AP tech-c: CER-AP auth: # Filtered remarks: timezone GMT+8 remarks: http://www.ccert.edu.cn remarks: [email protected] 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: [email protected] admin-c: CER-AP tech-c: CER-AP nic-hdl: AC1685-AP remarks: Generated from irt object IRT-CERNET-AP remarks: [email protected] was validated on 2025-08-15 abuse-mailbox: [email protected] 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: [email protected] remarks: [email protected] 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 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
18 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 202.121.228.1 |
3.42ms from Shanghai,
CN
|
|
| 202.121.225.98 |
2.28ms from Shanghai,
CN
|
|
| 202.121.224.51 |
2.66ms from Shanghai,
CN
|
|
| 202.121.232.1 |
4.27ms from Shanghai,
CN
|
|
| 202.121.226.8 |
2.20ms 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 |
|---|---|---|
| 62.132.104.84 |
2.52ms from Amsterdam,
NL
|
|
| 181.47.189.180 |
5.20ms from Buenos Aires,
AR
|
|
| 51.171.117.228 |
6.29ms from Dublin,
IE
|
|
| 76.137.187.132 |
10.51ms from Fremont,
US
|
|
| 154.13.84.116 |
0.95ms from Mexico City,
MX
|
|
| 153.156.184.84 |
4.64ms from Osaka,
JP
|
|
| 83.113.79.132 |
12.93ms from Paris,
FR
|
|
| 176.139.138.4 |
1.19ms from Paris,
FR
|
|
| 174.73.137.68 |
6.28ms from Phoenix,
US
|
|
| 218.108.15.36 |
7.16ms from Shanghai,
CN
|
|
| 103.224.123.52 |
0.27ms from Singapore,
SG
|
|
| 36.8.159.84 |
4.72ms from Tokyo,
JP
|
|
| 218.41.174.244 |
8.73ms from Tokyo,
JP
|
|
| 207.219.73.68 |
1.47ms from Toronto,
CA
|
|
| 62.91.14.100 |
6.62ms from Frankfurt am Main,
DE
|
|
| 156.250.137.84 |
1.04ms from Hong Kong,
HK
|
|
| 213.86.84.244 |
0.65ms from London,
GB
|
|
| 97.188.94.68 |
15.05ms from Los Angeles,
US
|
|
| 90.51.51.20 |
18.47ms from Marseille,
FR
|
|
| 178.187.254.148 |
5.50ms from Novosibirsk,
RU
|
|
| 222.147.113.180 |
4.87ms from Osaka,
JP
|
|
| 177.30.123.52 |
1.42ms from Osasco,
BR
|
|
| 96.55.225.36 |
7.31ms from Seattle,
US
|
|
| 59.106.8.244 |
0.76ms from Tokyo,
JP
|
|
| 60.9.8.20 |
10.23ms from Beijing,
CN
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Lanzhou, 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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