219.221.240.0/20
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 Center, address: FIT-3-220, 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: abuse@cernet.edu.cn was validated on 2026-03-05 mnt-by: MAINT-CERNET-AP last-modified: 2026-03-05T06:39:56Z source: APNIC role: ABUSE CERNETAP country: ZZ address: Network Center, address: FIT-3-220, 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 2026-03-05 abuse-mailbox: abuse@cernet.edu.cn mnt-by: APNIC-ABUSE last-modified: 2026-03-05T06:40:20Z 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 is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|
Hosted domains API
Pingable IPs
6 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 219.221.244.1 |
56.82ms from Zhongwei,
CN
|
|
| 219.221.240.1 |
55.53ms from Chengdu,
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 |
|---|---|---|
| 107.138.231.4 |
19.57ms from Atlanta,
US
|
|
| 141.56.186.132 |
3.63ms from Berlin,
DE
|
|
| 128.52.131.164 |
0.43ms from Boston,
US
|
|
| 51.68.2.244 |
0.05ms from Gravelines,
FR
|
|
| 178.196.139.132 |
0.88ms from Lausanne,
CH
|
|
| 46.164.60.20 |
1.03ms from Ljubljana,
SI
|
|
| 31.113.101.100 |
3.70ms from London,
GB
|
|
| 68.121.18.68 |
8.94ms from Los Angeles,
US
|
|
| 96.240.15.4 |
1.61ms from New York City,
US
|
|
| 108.139.181.52 |
0.56ms from Osasco,
BR
|
|
| 72.249.28.36 |
0.23ms from Sioux Falls,
US
|
|
| 43.133.190.4 |
1.02ms from Tokyo,
JP
|
|
| 126.13.172.4 |
3.23ms from Tokyo,
JP
|
|
| 34.202.240.164 |
0.48ms from Ashburn,
US
|
|
| 138.99.44.84 |
1.25ms from Buenos Aires,
AR
|
|
| 13.247.54.196 |
0.10ms from Cape Town,
ZA
|
|
| 18.154.245.68 |
0.29ms from Dallas,
US
|
|
| 134.94.108.244 |
4.60ms from Frankfurt am Main,
DE
|
|
| 94.62.92.132 |
2.62ms from Lisbon,
PT
|
|
| 14.2.51.68 |
1.58ms from Melbourne,
AU
|
|
| 142.93.61.84 |
0.27ms from New York City,
US
|
|
| 139.111.147.68 |
0.91ms from Oslo,
NO
|
|
| 71.63.211.100 |
6.22ms from Portland,
US
|
|
| 68.123.14.20 |
4.67ms from San Jose,
US
|
|
| 175.151.142.132 |
12.58ms from Tieling,
CN
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Greenwood Village, US
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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