118.203.200.0/21
AS4538 · China Education and Research Network Center
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| Country |
China
|
| Domain | cernet.edu.cn |
| ASN | AS4538 |
| Parent Range | 118.202.0.0/15 |
| Registry | APNIC |
| ID | SYR-CERNET |
WHOIS Details
inetnum: 118.202.0.0 - 118.203.255.255 netname: SYR-CERNET descr: China Education and Research Network descr: Shenyang Regional Network country: CN admin-c: CER-AP tech-c: CER-AP abuse-c: AC1685-AP status: ALLOCATED PORTABLE remarks: origin AS4538 remarks: confederation remarks: -------------------------------------------------------- remarks: To report network abuse, please contact mnt-irt remarks: For troubleshooting, please contact tech-c and admin-c remarks: Report invalid contact via www.apnic.net/invalidcontact remarks: -------------------------------------------------------- mnt-by: APNIC-HM mnt-lower: MAINT-CERNET-AP mnt-routes: MAINT-CERNET-AP mnt-irt: IRT-CERNET-AP last-modified: 2020-09-03T09:16:03Z 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 route: 118.202.0.0/15 descr: CERNET origin: AS4538 mnt-by: MAINT-CERNET-AP last-modified: 2009-01-05T03:10:57Z source: APNIC
Overlapping Ranges
BGP prefixes that contain 118.203.200.0/21
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 118.202.0.0/15 | AS4538 | China Education and Research Network | 131,072 |
Nearby Ranges
BGP prefixes that overlap with 118.203.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 118.202.0.0/15 | AS4538 | China Education and Research Network | 131,072 |
Hosted domains
There are no domains currently hosted on this ASN.
Hosted domains API
Pingable IPs
1 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 118.203.200.224 |
22.45ms 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 |
|---|---|---|
| 74.111.187.165 |
6.46ms from Ashburn,
US
|
|
| 61.12.38.181 |
1.41ms from Bengaluru,
IN
|
|
| 3.148.216.245 |
0.13ms from Columbus,
US
|
|
| 154.200.109.149 |
0.62ms from Ho Chi Minh City,
VN
|
|
| 94.153.200.5 |
6.09ms from Kyiv,
UA
|
|
| 86.13.249.229 |
4.11ms from London,
GB
|
|
| 91.210.145.181 |
0.38ms from London,
GB
|
|
| 38.196.28.85 |
18.87ms from Miami,
US
|
|
| 37.205.174.101 |
4.26ms from Milan,
IT
|
|
| 160.94.84.69 |
0.87ms from Minneapolis,
US
|
|
| 66.177.1.133 |
4.84ms from Orlando,
US
|
|
| 216.186.110.5 |
1.20ms from Seattle,
US
|
|
| 50.217.251.149 |
1.98ms from Seattle,
US
|
|
| 49.23.217.53 |
1.75ms from Seoul,
KR
|
|
| 157.82.233.5 |
2.48ms from Tokyo,
JP
|
|
| 69.72.0.21 |
1.34ms from Ashburn,
US
|
|
| 75.144.148.245 |
5.58ms from Boston,
US
|
|
| 73.167.137.165 |
8.47ms from Boston,
US
|
|
| 200.163.42.197 |
17.37ms from Brasilia,
BR
|
|
| 119.55.91.37 |
7.51ms from Changchun,
CN
|
|
| 122.179.59.117 |
9.47ms from Chennai,
IN
|
|
| 159.89.103.101 |
0.47ms from Frankfurt am Main,
DE
|
|
| 104.221.166.101 |
0.35ms from Los Angeles,
US
|
|
| 95.123.78.101 |
5.51ms from Madrid,
ES
|
|
| 24.47.51.85 |
11.76ms from New York City,
US
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Kuwait City, KW
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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