202.121.117.0/24
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: 2025-11-18T00:26:28Z 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: 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
1 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 202.121.117.152 |
2.73ms 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 |
|---|---|---|
| 190.145.170.184 |
0.99ms from Bogota,
CO
|
|
| 35.220.105.104 |
0.14ms from Brussels,
BE
|
|
| 178.116.120.120 |
8.22ms from Brussels,
BE
|
|
| 112.195.77.40 |
4.60ms from Chengdu,
CN
|
|
| 131.234.182.152 |
5.28ms from Duesseldorf,
DE
|
|
| 14.190.17.248 |
1.96ms from Hanoi,
VN
|
|
| 123.253.75.88 |
8.30ms from Kuala Lumpur,
MY
|
|
| 189.237.84.104 |
14.85ms from Phoenix,
US
|
|
| 178.148.209.184 |
8.60ms from Belgrade,
RS
|
|
| 20.252.226.216 |
0.26ms from Boydton,
US
|
|
| 81.244.203.216 |
1.93ms from Brussels,
BE
|
|
| 34.252.144.184 |
0.14ms from Dublin,
IE
|
|
| 83.254.243.184 |
8.06ms from Goeteborg,
SE
|
|
| 116.97.13.88 |
5.33ms from Hanoi,
VN
|
|
| 62.237.31.104 |
1.00ms from Helsinki,
FI
|
|
| 69.127.220.168 |
1.73ms from New York City,
US
|
|
| 20.19.226.104 |
0.23ms from Paris,
FR
|
|
| 183.99.190.232 |
2.06ms from Seoul,
KR
|
|
| 220.149.254.56 |
2.79ms from Seoul,
KR
|
|
| 134.224.158.8 |
0.11ms from Sydney,
AU
|
|
| 99.38.127.200 |
8.77ms from Chicago,
US
|
|
| 104.231.31.248 |
18.45ms from Columbus,
US
|
|
| 63.176.33.72 |
0.12ms from Frankfurt am Main,
DE
|
|
| 47.154.217.216 |
4.46ms from Los Angeles,
US
|
|
| 79.34.192.24 |
5.82ms from Milan,
IT
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in The Hague, NL
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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