219.225.240.0/20
AS4538 · China Education and Research Network Center
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| Country |
China
|
| Domain | cernet.edu.cn |
| ASN | AS4538 |
| Registry | APNIC |
| ID | BJR-CERNET |
WHOIS Details
inetnum: 219.224.0.0 - 219.226.255.255 netname: BJR-CERNET descr: China Education and Research Network descr: Beijing 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: 2020-10-20T00:56:54Z 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 are no domains currently hosted on this ASN.
Hosted domains API
Pingable IPs
35 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 219.225.240.98 |
11.81ms from Beijing,
CN
|
|
| 219.225.254.57 |
11.93ms from Beijing,
CN
|
|
| 219.225.255.254 |
12.84ms from Beijing,
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 |
|---|---|---|
| 74.41.25.4 |
6.64ms from Ashburn,
US
|
|
| 136.114.253.116 |
0.13ms from Council Bluffs,
US
|
|
| 209.58.188.4 |
0.17ms from Hong Kong,
HK
|
|
| 151.40.102.196 |
7.59ms from Milan,
IT
|
|
| 8.53.180.148 |
0.74ms from Minneapolis,
US
|
|
| 58.190.183.148 |
1.18ms from Osaka,
JP
|
|
| 187.75.49.228 |
2.61ms from Osasco,
BR
|
|
| 62.92.41.164 |
0.79ms from Oslo,
NO
|
|
| 14.73.125.212 |
3.15ms from Seoul,
KR
|
|
| 83.251.73.212 |
6.14ms from Stockholm,
SE
|
|
| 27.110.53.4 |
1.39ms from Tokyo,
JP
|
|
| 123.16.82.228 |
1.25ms from Hanoi,
VN
|
|
| 203.123.201.132 |
2.95ms from Incheon,
KR
|
|
| 219.93.8.164 |
1.69ms from Kuala Lumpur,
MY
|
|
| 90.73.171.20 |
2.36ms from Marseille,
FR
|
|
| 65.93.169.212 |
1.27ms from Montreal,
CA
|
|
| 62.86.249.132 |
15.05ms from Rome,
IT
|
|
| 193.248.202.36 |
2.24ms from Saint-Denis,
FR
|
|
| 125.61.29.244 |
3.94ms from Seoul,
KR
|
|
| 180.222.193.84 |
0.12ms from Sydney,
AU
|
|
| 125.202.144.228 |
3.62ms from Tokyo,
JP
|
|
| 72.196.245.36 |
1.58ms from Ashburn,
US
|
|
| 24.147.40.148 |
8.94ms from Boston,
US
|
|
| 27.15.76.36 |
2.18ms from Chongqing,
CN
|
|
| 170.213.240.36 |
6.54ms from Dallas,
US
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Delhi, IN
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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