219.221.0.0/20
AS4538 · China Education and Research Network Center
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| Country |
China
|
| Domain | cernet.edu.cn |
| ASN | AS4538 |
| Registry | APNIC |
| ID | CERNET-CN |
WHOIS Details
inetnum: 219.221.0.0 - 219.221.255.255 netname: CERNET-CN descr: China Education and Research Network descr: Chengdu 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: 2020-10-20T00:56:53Z 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
2 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 219.221.11.141 |
36.88ms 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 |
|---|---|---|
| 98.209.154.164 |
9.33ms from Chicago,
US
|
|
| 119.147.161.68 |
1.59ms from Guangzhou,
CN
|
|
| 177.89.249.100 |
0.74ms from Joao Pessoa,
BR
|
|
| 65.94.173.68 |
5.68ms from Montreal,
CA
|
|
| 115.152.165.228 |
5.02ms from Nanchang,
CN
|
|
| 176.143.242.164 |
8.33ms from Paris,
FR
|
|
| 186.3.58.148 |
0.64ms from Quito,
EC
|
|
| 175.193.48.244 |
1.29ms from Seoul,
KR
|
|
| 212.108.101.244 |
0.14ms from Stockholm,
SE
|
|
| 153.153.166.228 |
1.36ms from Tokyo,
JP
|
|
| 46.70.173.36 |
1.62ms from Ashburn,
US
|
|
| 188.27.186.84 |
1.29ms from Bucharest,
RO
|
|
| 41.234.87.228 |
3.80ms from Cairo,
EG
|
|
| 73.45.148.4 |
6.49ms from Chicago,
US
|
|
| 123.24.130.68 |
1.33ms from Hanoi,
VN
|
|
| 47.120.1.52 |
0.36ms from Heyuan,
CN
|
|
| 176.58.88.148 |
0.03ms from London,
GB
|
|
| 72.13.243.52 |
0.27ms from Los Angeles,
US
|
|
| 44.216.1.244 |
0.19ms from Reston,
US
|
|
| 52.22.65.116 |
0.17ms from Reston,
US
|
|
| 18.215.209.148 |
0.19ms from Reston,
US
|
|
| 71.48.178.148 |
17.48ms from Seattle,
US
|
|
| 61.109.0.180 |
2.56ms from Seoul,
KR
|
|
| 221.147.254.228 |
1.45ms from Seoul,
KR
|
|
| 60.119.86.20 |
2.35ms from Tokyo,
JP
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Halifax, CA
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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