211.82.8.0/21
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: 211.81.0.0 - 211.82.255.255 netname: CERNET-CN descr: China Education and Research Network descr: Beijing Regional Network country: CN admin-c: JW1-CN tech-c: XL1-CN tech-c: SZ2-AP abuse-c: AC1685-AP status: ALLOCATED PORTABLE mnt-by: APNIC-HM mnt-lower: MAINT-CERNET-AP mnt-routes: MAINT-CERNET-AP mnt-irt: IRT-CERNET-AP last-modified: 2020-10-20T00:56:14Z 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 person: Jianping Wu address: China Education and Research Network Center address: Room 225, Main Building, Tsinghua University address: Beijing 100084 address: CN country: CN phone: +86-10-6278-5983 fax-no: +86-10-6278-5933 e-mail: jianping@cernet.edu.cn nic-hdl: JW1-CN mnt-by: MAINT-CERNET-AP last-modified: 2011-12-22T05:14:25Z source: APNIC person: Shuang Zhu address: China Education and Research Network Information Center address: Room 225, Main Building, Tsinghua University address: Beijing 100084, China country: CN phone: +86-10-6278-5931 fax-no: +86-10-6278-5933 e-mail: szhu@cernet.edu.cn nic-hdl: SZ2-AP mnt-by: MAINT-CERNET-AP last-modified: 2011-12-22T05:14:36Z source: APNIC person: Xing Li address: China Education and Research Network Center address: Room 225, Main Building, Tsinghua University address: Beijing 100084 address: CN country: CN phone: +86-10-6278-5983 fax-no: +86-10-6278-5933 e-mail: xing@cernet.edu.cn nic-hdl: XL1-CN mnt-by: MAINT-CERNET-AP last-modified: 2011-12-22T05:14:25Z source: APNIC
Hosted domains
There are no domains currently hosted on this ASN.
Hosted domains API
Pingable IPs
49 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 211.82.9.139 |
15.67ms from Beijing,
CN
|
|
| 211.82.11.239 |
14.48ms from Beijing,
CN
|
|
| 211.82.12.106 |
16.12ms from Beijing,
CN
|
|
| 211.82.10.7 |
15.54ms from Beijing,
CN
|
|
| 211.82.8.5 |
14.48ms from Beijing,
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 |
|---|---|---|
| 109.129.148.21 |
1.90ms from Brussels,
BE
|
|
| 221.5.219.117 |
0.34ms from Chongqing,
CN
|
|
| 108.181.184.149 |
0.65ms from Dallas,
US
|
|
| 88.69.45.85 |
5.06ms from Duesseldorf,
DE
|
|
| 38.33.162.229 |
0.78ms from Hong Kong,
HK
|
|
| 59.45.53.165 |
4.49ms from Liaoyang,
CN
|
|
| 94.1.57.165 |
0.96ms from London,
GB
|
|
| 31.23.185.213 |
16.51ms from Moscow,
RU
|
|
| 79.254.126.133 |
2.51ms from Nuernberg,
DE
|
|
| 83.23.9.37 |
16.65ms from Poznan,
PL
|
|
| 175.242.62.213 |
7.54ms from Seoul,
KR
|
|
| 159.143.76.149 |
0.09ms from Singapore,
SG
|
|
| 121.3.190.213 |
1.44ms from Tokyo,
JP
|
|
| 121.61.30.85 |
4.42ms from Wuhan,
CN
|
|
| 202.131.100.149 |
2.27ms from Ahmedabad,
IN
|
|
| 100.29.25.53 |
0.53ms from Ashburn,
US
|
|
| 62.164.247.69 |
2.34ms from Ashburn,
US
|
|
| 61.55.210.181 |
8.34ms from Beijing,
CN
|
|
| 204.9.221.133 |
0.89ms from Boston,
US
|
|
| 91.183.151.197 |
1.29ms from Brussels,
BE
|
|
| 196.115.186.5 |
4.85ms from Casablanca,
MA
|
|
| 74.234.35.229 |
0.52ms from Dublin,
IE
|
|
| 201.73.250.53 |
10.97ms from Fortaleza,
BR
|
|
| 62.224.4.117 |
6.17ms from Frankfurt am Main,
DE
|
|
| 41.30.182.69 |
13.11ms from Johannesburg,
ZA
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
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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