202.121.0.0/20
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
34 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 202.121.4.193 |
2.97ms from Shanghai,
CN
|
|
| 202.121.15.130 |
3.59ms from Shanghai,
CN
|
|
| 202.121.8.15 |
2.57ms from Shanghai,
CN
|
|
| 202.121.7.14 |
2.99ms from Shanghai,
CN
|
|
| 202.121.5.162 |
2.41ms from Shanghai,
CN
|
|
| 202.121.6.139 |
2.86ms from Shanghai,
CN
|
|
| 202.121.1.62 |
2.67ms from Shanghai,
CN
|
|
| 202.121.2.226 |
2.01ms 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 |
|---|---|---|
| 79.107.98.4 |
6.54ms from Athens,
GR
|
|
| 123.231.4.100 |
4.57ms from Colombo,
LK
|
|
| 94.61.84.4 |
7.38ms from Lisbon,
PT
|
|
| 50.7.31.20 |
0.20ms from Madrid,
ES
|
|
| 87.14.8.164 |
3.76ms from Milan,
IT
|
|
| 170.72.242.244 |
0.15ms from Osasco,
BR
|
|
| 213.44.27.4 |
0.63ms from Paris,
FR
|
|
| 20.3.142.228 |
0.76ms from Quincy,
US
|
|
| 119.214.16.4 |
1.48ms from Seoul,
KR
|
|
| 118.166.66.148 |
2.41ms from Taipei,
TW
|
|
| 79.167.206.196 |
5.77ms from Athens,
GR
|
|
| 81.17.230.20 |
0.50ms from Belgrade,
RS
|
|
| 91.59.172.196 |
2.88ms from Berlin,
DE
|
|
| 54.148.228.148 |
0.20ms from Boardman,
US
|
|
| 68.142.159.4 |
8.55ms from Chicago,
US
|
|
| 18.189.200.116 |
0.19ms from Columbus,
US
|
|
| 183.47.104.164 |
2.87ms from Guangzhou,
CN
|
|
| 79.172.98.164 |
0.89ms from Moscow,
RU
|
|
| 97.101.189.36 |
6.48ms from Orlando,
US
|
|
| 177.103.0.68 |
3.64ms from Osasco,
BR
|
|
| 207.246.241.244 |
0.47ms from Phoenix,
US
|
|
| 52.202.93.196 |
0.18ms from Reston,
US
|
|
| 20.219.81.68 |
0.32ms from Saint Thomas Mount,
IN
|
|
| 114.33.86.180 |
2.50ms from Taichung,
TW
|
|
| 148.81.121.148 |
1.51ms from Warsaw,
PL
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Huai'an, CN
What are IP address ranges?
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