101.5.128.0/21
AS4538 · China Education and Research Network Center
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| Country |
China
|
| Domain | cernet.edu.cn |
| ASN | AS4538 |
| Parent Range | 101.4.0.0/14 |
| Registry | APNIC |
| ID | BJR-CERNET |
WHOIS Details
inetnum: 101.4.0.0 - 101.7.255.255 netname: BJR-CERNET descr: China Education and Research Network descr: Beijing Regional Network country: CN admin-c: CER-AP tech-c: CER-AP abuse-c: AC1685-AP status: ALLOCATED PORTABLE remarks: origin AS4538 remarks: confederation remarks: -------------------------------------------------------- remarks: To report network abuse, please contact mnt-irt remarks: For troubleshooting, please contact tech-c and admin-c remarks: Report invalid contact via www.apnic.net/invalidcontact remarks: -------------------------------------------------------- mnt-by: APNIC-HM mnt-lower: MAINT-CERNET-AP mnt-routes: MAINT-CERNET-AP mnt-irt: IRT-CERNET-AP last-modified: 2020-09-03T09:16:24Z 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: 2025-09-04T00:59:41Z 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 route: 101.4.0.0/14 descr: CERNET origin: AS4538 mnt-by: MAINT-CERNET-AP last-modified: 2010-12-13T06:08:01Z source: APNIC
Overlapping Ranges
BGP prefixes that contain 101.5.128.0/21
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 101.4.0.0/14 | AS4538 | China Education and Research Network | 262,144 |
Nearby Ranges
BGP prefixes that overlap with 101.5.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 101.4.0.0/14 | AS4538 | China Education and Research Network | 262,144 |
Hosted domains
There are no domains currently hosted on this ASN.
Hosted domains API
Pingable IPs
434 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 101.5.133.68 |
5.72ms from Beijing,
CN
|
|
| 101.5.129.136 |
6.47ms from Beijing,
CN
|
|
| 101.5.135.214 |
6.15ms from Beijing,
CN
|
|
| 101.5.128.1 |
3.94ms from Beijing,
CN
|
|
| 101.5.132.48 |
6.20ms from Beijing,
CN
|
|
| 101.5.134.23 |
6.51ms from Beijing,
CN
|
|
| 101.5.130.125 |
5.86ms from Beijing,
CN
|
|
| 101.5.131.187 |
5.92ms 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 |
|---|---|---|
| 20.82.82.21 |
0.26ms from Amsterdam,
NL
|
|
| 209.55.26.5 |
0.40ms from Atlanta,
US
|
|
| 192.119.254.5 |
0.54ms from Atlanta,
US
|
|
| 94.198.58.5 |
0.41ms from Berlin,
DE
|
|
| 125.16.73.21 |
0.52ms from Chennai,
IN
|
|
| 59.99.177.165 |
11.49ms from Delhi,
IN
|
|
| 171.234.234.21 |
1.38ms from Hanoi,
VN
|
|
| 84.122.30.69 |
16.01ms from Madrid,
ES
|
|
| 104.12.48.101 |
7.49ms from Miami,
US
|
|
| 46.61.233.5 |
1.22ms from Moscow,
RU
|
|
| 13.235.212.245 |
0.10ms from Mumbai,
IN
|
|
| 87.17.28.213 |
3.72ms from Naples,
IT
|
|
| 27.147.119.197 |
3.86ms from Osaka,
JP
|
|
| 182.48.0.245 |
0.38ms from Osaka,
JP
|
|
| 4.155.126.85 |
0.37ms from Quincy,
US
|
|
| 5.56.12.117 |
9.89ms from Rome,
IT
|
|
| 109.169.145.37 |
0.65ms from Samara,
RU
|
|
| 216.93.217.229 |
5.21ms from San Jose,
US
|
|
| 158.247.202.53 |
0.14ms from Seoul,
KR
|
|
| 1.217.198.69 |
1.75ms from Seoul,
KR
|
|
| 121.181.55.53 |
4.84ms from Seoul,
KR
|
|
| 211.176.87.101 |
1.77ms from Seoul,
KR
|
|
| 58.35.105.117 |
3.78ms from Shanghai,
CN
|
|
| 73.64.227.101 |
19.90ms from Washington,
US
|
|
| 98.64.186.197 |
0.20ms from Amsterdam,
NL
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Tianjin, CN
What are IP address ranges?
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