219.231.56.0/21
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: 219.230.0.0 - 219.231.255.255 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: 2020-09-03T09:16:27Z 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
Hosted domains
There are no domains currently hosted on this ASN.
Hosted domains API
Pingable IPs
No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
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 |
|---|---|---|
| 38.100.61.53 |
1.06ms from Ashburn,
US
|
|
| 62.114.97.149 |
8.36ms from Cairo,
EG
|
|
| 156.223.208.5 |
6.48ms from Cairo,
EG
|
|
| 99.32.163.213 |
6.83ms from Chicago,
US
|
|
| 18.227.105.37 |
0.18ms from Columbus,
US
|
|
| 185.142.9.101 |
1.67ms from Frankfurt am Main,
DE
|
|
| 125.121.240.181 |
8.53ms from Hangzhou,
CN
|
|
| 43.243.187.69 |
19.71ms from Jakarta,
ID
|
|
| 77.110.112.213 |
0.25ms from Kemerovo,
RU
|
|
| 141.138.125.53 |
3.01ms from Kyiv,
UA
|
|
| 18.101.56.117 |
5.68ms from Madrid,
ES
|
|
| 35.203.27.197 |
0.10ms from Montreal,
CA
|
|
| 87.7.27.21 |
5.15ms from Naples,
IT
|
|
| 35.142.253.37 |
10.59ms from Orlando,
US
|
|
| 174.114.143.181 |
5.48ms from Ottawa,
CA
|
|
| 87.91.7.117 |
1.65ms from Paris,
FR
|
|
| 189.52.241.85 |
0.92ms from Sao Paulo,
BR
|
|
| 221.149.15.37 |
1.62ms from Seoul,
KR
|
|
| 58.233.254.37 |
1.63ms from Seoul,
KR
|
|
| 117.185.58.197 |
3.05ms from Shanghai,
CN
|
|
| 104.222.171.245 |
0.15ms from Stockholm,
SE
|
|
| 105.97.34.101 |
10.84ms from Algiers,
DZ
|
|
| 82.201.35.69 |
0.53ms from Amsterdam,
NL
|
|
| 123.126.32.181 |
3.14ms from Beijing,
CN
|
|
| 45.59.8.85 |
2.66ms from Chicago,
US
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Seoul, KR
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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