211.71.128.0/20
AS4538 · China Education and Research Network Center
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| Country |
China
|
| Domain | cernet.edu.cn |
| ASN | AS4538 |
| Registry | APNIC |
| ID | CERNET |
WHOIS Details
inetnum: 211.70.0.0 - 211.71.255.255 netname: CERNET descr: China Education and Research Network descr: Room 224, Tsinghua University descr: Beijing, China country: CN admin-c: JW1-CN tech-c: XL1-CN tech-c: LZ1-CN abuse-c: AC1685-AP status: ALLOCATED PORTABLE remarks: APNIC Very Large member, confederation mnt-by: APNIC-HM mnt-lower: MAINT-CERNET-AP mnt-routes: MAINT-CERNET-AP mnt-irt: IRT-CERNET-AP last-modified: 2020-10-20T00:56:10Z 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 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: Ling Zhang address: Network Center address: South China University of Technology address: Guangzhou, Guangdong 510641, China address: CN country: CN phone: +86-20-87110596 fax-no: +86-20-87110019 e-mail: ling@scut.edu.cn nic-hdl: LZ1-CN notify: dbmon@apnic.net mnt-by: MAINT-NULL last-modified: 2011-12-22T05:14:25Z 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
6 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 211.71.128.249 |
2.68ms from Beijing,
CN
|
|
| 211.71.136.3 |
2.76ms 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 |
|---|---|---|
| 73.128.11.228 |
6.84ms from Ashburn,
US
|
|
| 91.126.211.212 |
1.12ms from Barcelona,
ES
|
|
| 184.154.188.4 |
1.03ms from Chicago,
US
|
|
| 34.18.169.164 |
0.10ms from Doha,
QA
|
|
| 54.246.66.4 |
0.28ms from Dublin,
IE
|
|
| 80.189.136.20 |
6.53ms from Erith,
GB
|
|
| 68.56.147.84 |
8.79ms from Flint,
US
|
|
| 113.186.52.4 |
5.75ms from Hanoi,
VN
|
|
| 188.37.105.100 |
6.61ms from Lisbon,
PT
|
|
| 193.192.11.4 |
0.75ms from Lisbon,
PT
|
|
| 92.189.188.116 |
2.40ms from Madrid,
ES
|
|
| 80.231.126.68 |
0.38ms from Madrid,
ES
|
|
| 123.198.18.116 |
1.81ms from Osaka,
JP
|
|
| 80.14.131.100 |
3.37ms from Paris,
FR
|
|
| 44.203.105.228 |
0.17ms from Reston,
US
|
|
| 54.158.250.68 |
0.22ms from Reston,
US
|
|
| 93.149.244.4 |
9.39ms from Rome,
IT
|
|
| 123.5.51.116 |
4.70ms from Zhengzhou,
CN
|
|
| 45.231.214.100 |
5.28ms from Buenos Aires,
AR
|
|
| 139.68.113.20 |
2.91ms from Chicago,
US
|
|
| 98.201.111.100 |
3.87ms from Houston,
US
|
|
| 176.49.27.228 |
1.21ms from Krasnoyarsk,
RU
|
|
| 80.3.213.4 |
11.85ms from London,
GB
|
|
| 185.65.248.132 |
0.54ms from Paris,
FR
|
|
| 194.108.158.180 |
0.65ms from Prague,
CZ
|
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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