218.193.184.0/21
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: 218.193.0.0 - 218.193.255.255 netname: CERNET-CN descr: China Education and Research Network descr: Shanghai Regional Network 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: 2020-10-20T00:56:38Z 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
70 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 218.193.191.254 |
3.25ms from Shanghai,
CN
|
|
| 218.193.184.84 |
2.02ms from Shanghai,
CN
|
|
| 218.193.189.254 |
3.67ms from Shanghai,
CN
|
|
| 218.193.187.30 |
1.92ms from Shanghai,
CN
|
|
| 218.193.190.254 |
2.98ms from Shanghai,
CN
|
|
| 218.193.186.94 |
2.12ms from Shanghai,
CN
|
|
| 218.193.185.54 |
1.65ms from Shanghai,
CN
|
|
| 218.193.188.254 |
3.01ms 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 |
|---|---|---|
| 92.65.58.101 |
0.48ms from Amsterdam,
NL
|
|
| 132.45.183.181 |
0.52ms from Atlanta,
US
|
|
| 61.51.102.37 |
2.97ms from Beijing,
CN
|
|
| 89.133.78.181 |
11.28ms from Budapest,
HU
|
|
| 67.218.71.165 |
17.80ms from Denver,
US
|
|
| 66.204.51.5 |
12.46ms from Kansas City,
US
|
|
| 47.136.182.21 |
7.59ms from Los Angeles,
US
|
|
| 62.99.51.149 |
6.43ms from Madrid,
ES
|
|
| 45.86.225.245 |
9.73ms from Madrid,
ES
|
|
| 82.84.7.133 |
1.32ms from Milan,
IT
|
|
| 197.232.10.197 |
1.61ms from Nairobi,
KE
|
|
| 216.153.89.213 |
6.80ms from Osaka,
JP
|
|
| 78.5.227.21 |
1.37ms from Rome,
IT
|
|
| 117.221.42.181 |
5.67ms from Saint Thomas Mount,
IN
|
|
| 70.45.56.85 |
1.07ms from San Juan,
PR
|
|
| 189.77.33.117 |
2.82ms from Sao Paulo,
BR
|
|
| 13.54.62.37 |
0.10ms from Sydney,
AU
|
|
| 203.221.40.117 |
0.69ms from Sydney,
AU
|
|
| 126.218.88.69 |
3.29ms from Tokyo,
JP
|
|
| 138.88.139.101 |
1.82ms from Ashburn,
US
|
|
| 48.216.142.165 |
0.34ms from Ashburn,
US
|
|
| 199.188.85.149 |
9.84ms from Atlanta,
US
|
|
| 117.254.71.69 |
15.18ms from Bengaluru,
IN
|
|
| 45.58.206.117 |
0.28ms from Boston,
US
|
|
| 64.56.143.213 |
15.96ms from Chicago,
US
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Ottoville, 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.
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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