202.120.64.0/20
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 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
20 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 202.120.64.53 |
2.64ms from Shanghai,
CN
|
|
| 202.120.79.34 |
2.64ms 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 |
|---|---|---|
| 174.80.155.212 |
17.14ms from Atlanta,
US
|
|
| 82.76.179.84 |
1.09ms from Bucharest,
RO
|
|
| 179.38.141.228 |
2.48ms from Buenos Aires,
AR
|
|
| 103.180.189.244 |
12.92ms from Jakarta,
ID
|
|
| 41.156.34.180 |
1.40ms from Johannesburg,
ZA
|
|
| 2.223.232.4 |
1.58ms from London,
GB
|
|
| 121.45.101.244 |
1.70ms from Melbourne,
AU
|
|
| 177.22.75.132 |
5.40ms from Osasco,
BR
|
|
| 150.254.155.132 |
0.82ms from Poznan,
PL
|
|
| 196.64.77.4 |
4.26ms from Rabat,
MA
|
|
| 18.212.175.36 |
0.49ms from Ashburn,
US
|
|
| 119.5.124.228 |
11.11ms from Chengdu,
CN
|
|
| 73.75.103.20 |
3.42ms from Chicago,
US
|
|
| 157.148.62.244 |
2.68ms from Guangzhou,
CN
|
|
| 217.228.118.68 |
3.05ms from Hamburg,
DE
|
|
| 220.191.130.180 |
4.15ms from Hangzhou,
CN
|
|
| 23.27.206.180 |
2.10ms from Hong Kong,
HK
|
|
| 1.226.0.4 |
9.37ms from Incheon,
KR
|
|
| 24.133.230.4 |
15.69ms from Istanbul,
TR
|
|
| 79.157.191.244 |
10.80ms from Madrid,
ES
|
|
| 83.49.227.52 |
6.93ms from Madrid,
ES
|
|
| 15.236.53.52 |
0.13ms from Paris,
FR
|
|
| 86.233.187.20 |
10.57ms from Paris,
FR
|
|
| 62.161.194.4 |
1.42ms from Paris,
FR
|
|
| 128.2.209.132 |
1.06ms from Pittsburgh,
US
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Hong Kong, HK
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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