121.250.160.0/19
AS4538 · China Education and Research Network Center
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| Country |
China
|
| Domain | cernet.edu.cn |
| ASN | AS4538 |
| Parent Range | 121.248.0.0/14 |
| Registry | APNIC |
| ID | NJR-CERNET |
WHOIS Details
inetnum: 121.248.0.0 - 121.251.255.255 netname: NJR-CERNET descr: China Education and Research Network descr: Nanjing 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: 2020-09-03T09:15:58Z 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 route: 121.248.0.0/15 descr: CERNET origin: AS4538 mnt-by: MAINT-CERNET-AP last-modified: 2009-01-05T03:10:57Z source: APNIC
Overlapping Ranges
BGP prefixes that contain 121.250.160.0/19
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 121.248.0.0/14 | AS4538 | China Education and Research Network | 262,144 |
Nearby Ranges
BGP prefixes that overlap with 121.250.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 121.248.0.0/14 | AS4538 | China Education and Research Network | 262,144 |
Hosted domains
There are 2 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 121.250.180.20 | wenrui.work | 1 |
Hosted domains API
Pingable IPs
57 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 121.250.162.240 |
11.40ms from Qingdao,
CN
|
|
| 121.250.191.27 |
10.58ms from Qingdao,
CN
|
|
| 121.250.176.129 |
11.62ms from Qingdao,
CN
|
|
| 121.250.173.145 |
11.13ms from Qingdao,
CN
|
|
| 121.250.180.20 |
10.72ms from Qingdao,
CN
|
|
| 121.250.190.187 |
11.91ms from Qingdao,
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 |
|---|---|---|
| 169.155.158.83 |
0.47ms from Ashburn,
US
|
|
| 90.100.137.3 |
10.01ms from Frankfurt am Main,
DE
|
|
| 175.44.84.227 |
7.54ms from Fuzhou,
CN
|
|
| 14.163.18.115 |
2.09ms from Hanoi,
VN
|
|
| 86.188.26.115 |
2.01ms from London,
GB
|
|
| 86.183.173.163 |
6.08ms from London,
GB
|
|
| 212.15.255.3 |
9.92ms from Madrid,
ES
|
|
| 92.22.165.211 |
3.52ms from Manchester,
GB
|
|
| 157.231.220.67 |
2.56ms from Manchester,
GB
|
|
| 92.242.173.243 |
1.04ms from Milan,
IT
|
|
| 202.254.212.67 |
16.03ms from Osaka,
JP
|
|
| 92.221.120.67 |
6.25ms from Oslo,
NO
|
|
| 3.219.250.83 |
0.21ms from Reston,
US
|
|
| 14.53.92.131 |
1.47ms from Seoul,
KR
|
|
| 112.65.195.163 |
2.39ms from Shanghai,
CN
|
|
| 37.199.232.67 |
0.63ms from Stockholm,
SE
|
|
| 84.23.135.83 |
3.30ms from Stockholm,
SE
|
|
| 20.28.190.147 |
0.64ms from Sydney,
AU
|
|
| 109.93.143.115 |
2.83ms from Belgrade,
RS
|
|
| 184.33.186.67 |
0.12ms from Boardman,
US
|
|
| 109.149.182.115 |
6.21ms from Erith,
GB
|
|
| 90.190.222.3 |
2.00ms from Jõhvi,
EE
|
|
| 88.27.170.115 |
1.97ms from Madrid,
ES
|
|
| 186.53.88.3 |
1.83ms from Montevideo,
UY
|
|
| 87.231.201.51 |
17.32ms from Paris,
FR
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Manila, PH
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