218.193.240.0/20
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: 218.193.0.0 - 218.193.255.255 netname: CERNET-CN descr: China Education and Research Network descr: Shanghai Regional Network country: CN admin-c: CER-AP tech-c: CER-AP abuse-c: AC1685-AP status: ALLOCATED PORTABLE remarks: origin AS4538 mnt-by: APNIC-HM mnt-lower: MAINT-CERNET-AP mnt-routes: MAINT-CERNET-AP mnt-irt: IRT-CERNET-AP last-modified: 2020-10-20T00:56:38Z 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: [email protected] abuse-mailbox: [email protected] admin-c: CER-AP tech-c: CER-AP auth: # Filtered remarks: timezone GMT+8 remarks: http://www.ccert.edu.cn remarks: [email protected] 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: [email protected] admin-c: CER-AP tech-c: CER-AP nic-hdl: AC1685-AP remarks: Generated from irt object IRT-CERNET-AP remarks: [email protected] was validated on 2025-08-15 abuse-mailbox: [email protected] 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: [email protected] remarks: [email protected] 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
7 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 218.193.240.107 |
15.57ms from Wuhan,
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 |
|---|---|---|
| 54.69.239.164 |
0.12ms from Boardman,
US
|
|
| 23.95.199.164 |
0.24ms from Buffalo,
US
|
|
| 103.135.243.180 |
4.14ms from Hong Kong,
HK
|
|
| 203.193.194.36 |
1.32ms from Melbourne,
AU
|
|
| 49.190.107.180 |
11.02ms from Melbourne,
AU
|
|
| 20.219.102.180 |
0.32ms from Saint Thomas Mount,
IN
|
|
| 187.148.251.20 |
8.33ms from Santiago de Queretaro,
MX
|
|
| 188.121.103.164 |
15.23ms from Yerevan,
AM
|
|
| 216.134.205.36 |
10.02ms from Ashburn,
US
|
|
| 102.219.135.20 |
10.97ms from Cairo,
EG
|
|
| 223.83.56.4 |
12.17ms from Changsha,
CN
|
|
| 3.12.19.52 |
0.14ms from Columbus,
US
|
|
| 80.209.73.4 |
1.38ms from Copenhagen,
DK
|
|
| 84.170.217.180 |
2.97ms from Frankfurt am Main,
DE
|
|
| 181.64.10.36 |
0.77ms from Lima,
PE
|
|
| 115.39.106.116 |
5.32ms from Osaka,
JP
|
|
| 85.164.241.36 |
5.41ms from Oslo,
NO
|
|
| 201.103.204.148 |
3.68ms from Santiago de Queretaro,
MX
|
|
| 58.140.114.244 |
1.71ms from Seoul,
KR
|
|
| 59.26.52.4 |
3.35ms from Seoul,
KR
|
|
| 38.244.148.116 |
0.28ms from Singapore,
SG
|
|
| 2.69.221.4 |
7.08ms from Stockholm,
SE
|
|
| 220.129.200.132 |
1.01ms from Taipei,
TW
|
|
| 34.225.86.36 |
0.56ms from Ashburn,
US
|
|
| 23.219.213.116 |
0.32ms from Ashburn,
US
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Helsinki, FI
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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