211.87.0.0/21
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: 211.86.0.0 - 211.87.255.255 netname: CERNET-CN descr: China Education and Research Network descr: Nanjing Regional Network country: CN admin-c: CER-AP tech-c: CER-AP abuse-c: AC1685-AP status: ALLOCATED PORTABLE remarks: origin AS4538 remarks: confederation mnt-by: APNIC-HM mnt-lower: MAINT-CERNET-AP mnt-routes: MAINT-CERNET-AP mnt-irt: IRT-CERNET-AP last-modified: 2020-10-20T00:56:37Z 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
11 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 211.87.5.129 |
7.28ms from Shanghai,
CN
|
|
| 211.87.4.70 |
7.15ms from Shanghai,
CN
|
|
| 211.87.6.151 |
6.92ms 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 |
|---|---|---|
| 176.205.153.165 |
5.27ms from Al Fujairah City,
AE
|
|
| 145.53.17.149 |
2.55ms from Amsterdam,
NL
|
|
| 223.205.39.197 |
3.81ms from Bangkok,
TH
|
|
| 105.196.44.229 |
5.17ms from Cairo,
EG
|
|
| 76.139.219.245 |
8.51ms from Detroit,
US
|
|
| 86.170.9.229 |
2.85ms from London,
GB
|
|
| 81.156.102.5 |
4.51ms from London,
GB
|
|
| 47.203.161.53 |
6.38ms from Miami,
US
|
|
| 204.69.39.197 |
1.38ms from Minneapolis,
US
|
|
| 71.105.2.101 |
2.32ms from New York City,
US
|
|
| 177.100.169.133 |
2.09ms from Porto Alegre,
BR
|
|
| 76.149.3.181 |
11.83ms from San Jose,
US
|
|
| 34.180.87.133 |
0.16ms from Tokyo,
JP
|
|
| 86.89.159.245 |
1.28ms from Amsterdam,
NL
|
|
| 73.213.227.181 |
11.38ms from Ashburn,
US
|
|
| 203.146.4.101 |
1.15ms from Bangkok,
TH
|
|
| 200.137.244.133 |
4.10ms from Brasília,
BR
|
|
| 146.0.237.21 |
0.25ms from Frankfurt am Main,
DE
|
|
| 125.112.203.229 |
9.13ms from Hangzhou,
CN
|
|
| 45.116.145.213 |
0.79ms from Hong Kong,
HK
|
|
| 89.218.59.53 |
7.23ms from Karagandy,
KZ
|
|
| 2.136.222.69 |
2.50ms from Madrid,
ES
|
|
| 94.199.94.197 |
0.49ms from New York City,
US
|
|
| 88.178.210.53 |
2.38ms from Paris,
FR
|
|
| 46.170.238.245 |
1.43ms from Poznan,
PL
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Guangzhou, CN
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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