118.203.128.0/20
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 118.203.128.0/20
| 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
No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
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 |
|---|---|---|
| 73.106.56.164 |
4.72ms from Atlanta,
US
|
|
| 34.212.113.180 |
0.17ms from Boardman,
US
|
|
| 59.45.246.244 |
6.29ms from Dalian,
CN
|
|
| 196.196.151.36 |
0.30ms from Dublin,
IE
|
|
| 195.198.97.4 |
0.93ms from Goeteborg,
SE
|
|
| 148.139.2.100 |
1.27ms from London,
GB
|
|
| 145.241.224.244 |
0.21ms from London,
GB
|
|
| 185.59.181.164 |
0.33ms from London,
GB
|
|
| 2.139.172.116 |
6.35ms from Madrid,
ES
|
|
| 90.105.185.4 |
11.88ms from Paris,
FR
|
|
| 75.218.78.68 |
7.10ms from San Jose,
US
|
|
| 108.228.25.148 |
18.91ms from San Jose,
US
|
|
| 122.116.60.196 |
0.89ms from Taipei,
TW
|
|
| 20.7.175.212 |
0.30ms from Boydton,
US
|
|
| 85.216.152.36 |
5.73ms from Bratislava,
SK
|
|
| 77.233.244.100 |
0.34ms from Copenhagen,
DK
|
|
| 65.57.248.4 |
0.97ms from Dallas,
US
|
|
| 13.105.89.212 |
0.38ms from Dublin,
IE
|
|
| 179.178.43.4 |
11.14ms from Fortaleza,
BR
|
|
| 120.35.189.20 |
7.08ms from Fuzhou,
CN
|
|
| 81.22.241.100 |
1.03ms from Helsinki,
FI
|
|
| 116.48.255.20 |
7.28ms from Hong Kong,
HK
|
|
| 62.49.232.36 |
3.94ms from London,
GB
|
|
| 189.101.176.68 |
7.97ms from Osasco,
BR
|
|
| 211.48.233.132 |
3.21ms from Seoul,
KR
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Hillsboro, 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.
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