202.120.128.0/20
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: 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: 2025-08-15T09:37:51Z 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
171 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 202.120.131.216 |
5.44ms from Shanghai,
CN
|
|
| 202.120.142.17 |
4.35ms from Shanghai,
CN
|
|
| 202.120.141.95 |
5.23ms from Shanghai,
CN
|
|
| 202.120.134.211 |
5.29ms from Shanghai,
CN
|
|
| 202.120.139.24 |
4.02ms from Shanghai,
CN
|
|
| 202.120.132.63 |
5.24ms from Shanghai,
CN
|
|
| 202.120.129.67 |
5.35ms from Shanghai,
CN
|
|
| 202.120.133.122 |
5.37ms from Shanghai,
CN
|
|
| 202.120.143.239 |
5.49ms from Shanghai,
CN
|
|
| 202.120.138.109 |
5.65ms from Shanghai,
CN
|
|
| 202.120.137.1 |
5.15ms from Shanghai,
CN
|
|
| 202.120.130.148 |
4.10ms from Shanghai,
CN
|
|
| 202.120.128.214 |
6.22ms from Shanghai,
CN
|
|
| 202.120.135.235 |
5.40ms 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 |
|---|---|---|
| 69.61.74.196 |
0.18ms from Atlanta,
US
|
|
| 197.95.145.148 |
1.22ms from Cape Town,
ZA
|
|
| 75.219.82.164 |
16.63ms from Chicago,
US
|
|
| 92.116.73.4 |
2.93ms from Duesseldorf,
DE
|
|
| 79.228.9.164 |
8.94ms from Frankfurt am Main,
DE
|
|
| 113.185.59.68 |
1.45ms from Hanoi,
VN
|
|
| 23.29.32.36 |
1.20ms from Kansas City,
US
|
|
| 75.155.216.164 |
14.55ms from Kelowna,
CA
|
|
| 106.212.141.116 |
15.49ms from Mumbai,
IN
|
|
| 54.174.7.20 |
0.14ms from Reston,
US
|
|
| 52.21.247.20 |
0.17ms from Reston,
US
|
|
| 54.152.170.84 |
0.18ms from Reston,
US
|
|
| 142.120.61.132 |
1.43ms from Toronto,
CA
|
|
| 86.83.252.164 |
2.52ms from Amsterdam,
NL
|
|
| 91.46.208.180 |
3.74ms from Berlin,
DE
|
|
| 110.52.90.68 |
6.56ms from Changsha,
CN
|
|
| 108.230.164.148 |
1.83ms from Chicago,
US
|
|
| 131.189.246.164 |
0.21ms from Frankfurt am Main,
DE
|
|
| 175.43.93.84 |
6.84ms from Fuzhou,
CN
|
|
| 114.120.225.196 |
0.58ms from Jakarta,
ID
|
|
| 92.132.234.212 |
8.83ms from Marseille,
FR
|
|
| 190.132.167.196 |
16.39ms from Montevideo,
UY
|
|
| 112.68.39.116 |
1.88ms from Osaka,
JP
|
|
| 112.245.79.4 |
5.28ms from Qingdao,
CN
|
|
| 54.177.98.116 |
0.13ms from San Jose,
US
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Los Angeles, 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.
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