211.87.208.0/20
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: 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 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 is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 211.87.209.16 | pass-sdu-edu.cn | 1 |
Hosted domains API
Pingable IPs
4,092 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 211.87.216.73 |
5.86ms from Qingdao,
CN
|
|
| 211.87.221.56 |
5.79ms from Qingdao,
CN
|
|
| 211.87.215.68 |
6.01ms from Qingdao,
CN
|
|
| 211.87.209.48 |
6.08ms from Qingdao,
CN
|
|
| 211.87.220.149 |
5.96ms from Qingdao,
CN
|
|
| 211.87.218.187 |
5.93ms from Qingdao,
CN
|
|
| 211.87.217.199 |
5.91ms from Qingdao,
CN
|
|
| 211.87.211.31 |
5.83ms from Qingdao,
CN
|
|
| 211.87.212.205 |
5.89ms from Qingdao,
CN
|
|
| 211.87.213.0 |
5.89ms from Qingdao,
CN
|
|
| 211.87.222.25 |
5.90ms from Qingdao,
CN
|
|
| 211.87.214.168 |
5.90ms from Qingdao,
CN
|
|
| 211.87.223.156 |
6.10ms from Qingdao,
CN
|
|
| 211.87.208.240 |
5.90ms from Qingdao,
CN
|
|
| 211.87.219.184 |
5.87ms from Qingdao,
CN
|
|
| 211.87.210.32 |
5.97ms from Qingdao,
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 |
|---|---|---|
| 89.149.196.212 |
0.26ms from Amsterdam,
NL
|
|
| 206.246.113.196 |
7.25ms from Ashburn,
US
|
|
| 40.79.123.4 |
0.38ms from Boydton,
US
|
|
| 162.191.238.180 |
15.50ms from Chicago,
US
|
|
| 172.239.207.228 |
0.35ms from Chicago,
US
|
|
| 24.29.209.244 |
5.16ms from Cleveland,
US
|
|
| 190.226.137.228 |
10.42ms from Cordoba,
AR
|
|
| 94.7.236.4 |
1.92ms from Erith,
GB
|
|
| 76.215.229.196 |
1.82ms from Los Angeles,
US
|
|
| 92.191.102.116 |
1.80ms from Madrid,
ES
|
|
| 97.87.62.20 |
9.71ms from Minneapolis,
US
|
|
| 109.111.181.100 |
0.74ms from Novosibirsk,
RU
|
|
| 180.146.196.164 |
1.39ms from Osaka,
JP
|
|
| 95.244.160.212 |
8.26ms from Rome,
IT
|
|
| 1.34.47.4 |
1.18ms from Taipei,
TW
|
|
| 119.245.87.180 |
1.97ms from Tokyo,
JP
|
|
| 212.183.57.4 |
0.29ms from Vienna,
AT
|
|
| 142.244.46.244 |
5.44ms from Calgary,
CA
|
|
| 117.175.56.68 |
2.06ms from Chengdu,
CN
|
|
| 37.187.137.180 |
0.06ms from Gravelines,
FR
|
|
| 104.102.9.36 |
0.31ms from Hamburg,
DE
|
|
| 93.114.98.196 |
0.10ms from Istanbul,
TR
|
|
| 23.217.78.228 |
1.81ms from Lincoln,
US
|
|
| 31.173.23.164 |
14.29ms from Moscow,
RU
|
|
| 60.130.214.52 |
3.62ms from Osaka,
JP
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Beijing, 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.
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