219.231.48.0/21
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: 2025-11-18T00:26:28Z 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 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
19 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 219.231.55.132 |
14.29ms from Shanghai,
CN
|
|
| 219.231.53.235 |
13.89ms from Shanghai,
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 |
|---|---|---|
| 23.97.189.85 |
0.24ms from Amsterdam,
NL
|
|
| 96.34.236.53 |
4.70ms from Chicago,
US
|
|
| 162.204.12.21 |
3.76ms from Chicago,
US
|
|
| 75.186.41.37 |
11.08ms from Flint,
US
|
|
| 219.141.41.53 |
1.99ms from Guiyang,
CN
|
|
| 91.243.193.117 |
3.39ms from Kyiv,
UA
|
|
| 60.17.17.5 |
8.47ms from Liaoyang,
CN
|
|
| 42.55.171.101 |
13.65ms from Liaoyang,
CN
|
|
| 83.98.38.245 |
0.40ms from London,
GB
|
|
| 75.82.219.213 |
5.95ms from Los Angeles,
US
|
|
| 73.104.112.245 |
8.08ms from Orlando,
US
|
|
| 222.229.45.213 |
3.36ms from Osaka,
JP
|
|
| 5.252.235.117 |
0.17ms from Redditch,
GB
|
|
| 58.234.107.85 |
1.76ms from Seoul,
KR
|
|
| 218.236.124.101 |
2.39ms from Seoul,
KR
|
|
| 144.253.84.213 |
4.90ms from St. Louis,
US
|
|
| 192.31.56.5 |
0.27ms from Tampa,
US
|
|
| 195.85.170.229 |
0.74ms from Amsterdam,
NL
|
|
| 183.172.229.85 |
5.33ms from Beijing,
CN
|
|
| 149.200.113.117 |
0.77ms from Budapest,
HU
|
|
| 23.204.102.5 |
0.15ms from Buenos Aires,
AR
|
|
| 71.67.188.53 |
15.05ms from Columbus,
US
|
|
| 34.46.200.229 |
0.10ms from Council Bluffs,
US
|
|
| 31.59.238.181 |
0.65ms from Frankfurt am Main,
DE
|
|
| 120.33.50.21 |
5.14ms from Fuzhou,
CN
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Singapore, SG
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.
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