101.76.40.0/21
AS4538 · China Education and Research Network Center
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| Country |
China
|
| Domain | cernet.edu.cn |
| ASN | AS4538 |
| Parent Range | 101.76.0.0/15 |
| Registry | APNIC |
| ID | NJR-CERNET |
WHOIS Details
inetnum: 101.76.0.0 - 101.77.255.255 netname: NJR-CERNET 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 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: [email protected] abuse-mailbox: [email protected] admin-c: CER-AP tech-c: CER-AP auth: # Filtered remarks: timezone GMT+8 remarks: http://www.ccert.edu.cn remarks: [email protected] 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: [email protected] admin-c: CER-AP tech-c: CER-AP nic-hdl: AC1685-AP remarks: Generated from irt object IRT-CERNET-AP remarks: [email protected] was validated on 2025-08-15 abuse-mailbox: [email protected] 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: [email protected] remarks: [email protected] 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: 101.76.0.0/15 descr: CERNET origin: AS4538 mnt-by: MAINT-CERNET-AP last-modified: 2010-12-13T06:08:02Z source: APNIC
Overlapping Ranges
BGP prefixes that contain 101.76.40.0/21
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 101.76.0.0/15 | AS4538 | China Education and Research Network | 131,072 |
Nearby Ranges
BGP prefixes that overlap with 101.76.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 101.76.0.0/15 | AS4538 | China Education and Research Network | 131,072 |
Hosted domains
There are no domains currently hosted on this ASN.
Hosted domains API
Pingable IPs
201 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 101.76.42.254 |
19.12ms from Wuhan,
CN
|
|
| 101.76.40.19 |
16.28ms from Suzhou,
CN
|
|
| 101.76.41.8 |
16.26ms from Suzhou,
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 |
|---|---|---|
| 145.145.3.5 |
3.45ms from Amsterdam,
NL
|
|
| 24.91.245.133 |
6.04ms from Boston,
US
|
|
| 144.134.34.181 |
5.18ms from Brisbane,
AU
|
|
| 201.89.104.69 |
0.93ms from Curitiba,
BR
|
|
| 86.189.167.181 |
6.03ms from Erith,
GB
|
|
| 20.239.87.117 |
0.38ms from Hong Kong,
HK
|
|
| 60.171.0.197 |
8.25ms from Huai'an,
CN
|
|
| 92.27.25.69 |
5.91ms from London,
GB
|
|
| 47.157.123.21 |
13.90ms from Los Angeles,
US
|
|
| 69.166.11.117 |
2.63ms from Los Angeles,
US
|
|
| 116.50.179.133 |
0.29ms from Manila,
PH
|
|
| 187.202.86.133 |
1.08ms from Mexico City,
MX
|
|
| 212.48.55.213 |
1.41ms from Moscow,
RU
|
|
| 27.217.248.181 |
5.05ms from Qingdao,
CN
|
|
| 87.110.90.21 |
0.70ms from Riga,
LV
|
|
| 94.247.16.21 |
0.68ms from Saint Petersburg,
RU
|
|
| 191.118.188.181 |
17.80ms from Santiago,
CL
|
|
| 182.61.34.101 |
5.44ms from Shenzhen,
CN
|
|
| 101.191.14.37 |
3.81ms from Sydney,
AU
|
|
| 116.138.112.117 |
5.50ms from Tieling,
CN
|
|
| 175.149.86.133 |
1.03ms from Tieling,
CN
|
|
| 119.99.50.245 |
5.66ms from Wuhan,
CN
|
|
| 61.163.28.101 |
6.51ms from Zhengzhou,
CN
|
|
| 170.185.113.5 |
14.69ms from Chicago,
US
|
|
| 129.109.255.245 |
5.46ms from Dallas,
US
|
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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