121.250.51.0/24
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: 121.250.0.0/15 descr: CERNET origin: AS4538 mnt-by: MAINT-CERNET-AP last-modified: 2009-01-05T03:10:57Z source: APNIC
Overlapping Ranges
BGP prefixes that contain 121.250.51.0/24
| 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 is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 121.250.51.1 | qcl.edu.cn | 1 |
Hosted domains API
Pingable IPs
8 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 121.250.51.6 |
6.13ms 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 |
|---|---|---|
| 2.200.111.168 |
8.45ms from Berlin,
DE
|
|
| 181.59.146.120 |
19.31ms from Bogota,
CO
|
|
| 34.44.44.24 |
0.11ms from Council Bluffs,
US
|
|
| 155.4.37.120 |
4.28ms from Goeteborg,
SE
|
|
| 91.97.142.216 |
11.43ms from Hamburg,
DE
|
|
| 88.232.42.104 |
19.67ms from Istanbul,
TR
|
|
| 90.168.198.40 |
11.88ms from Madrid,
ES
|
|
| 185.89.9.248 |
1.06ms from Moscow,
RU
|
|
| 125.201.21.104 |
6.81ms from Osaka,
JP
|
|
| 35.180.160.216 |
0.15ms from Paris,
FR
|
|
| 110.235.255.216 |
0.70ms from Phnom Penh,
KH
|
|
| 105.157.91.88 |
9.14ms from Rabat,
MA
|
|
| 3.88.200.200 |
0.44ms from Reston,
US
|
|
| 203.245.191.152 |
3.24ms from Seoul,
KR
|
|
| 121.190.137.168 |
1.51ms from Seoul,
KR
|
|
| 59.126.144.72 |
1.68ms from Taichung,
TW
|
|
| 220.26.73.72 |
3.67ms from Tokyo,
JP
|
|
| 113.141.94.168 |
2.59ms from Xi'an,
CN
|
|
| 66.56.15.104 |
3.97ms from Atlanta,
US
|
|
| 98.192.0.136 |
4.37ms from Atlanta,
US
|
|
| 35.86.201.104 |
0.59ms from Boardman,
US
|
|
| 190.93.55.248 |
6.40ms from Cordoba,
AR
|
|
| 79.246.32.104 |
3.56ms from Frankfurt am Main,
DE
|
|
| 115.76.115.200 |
1.15ms from Ho Chi Minh City,
VN
|
|
| 47.52.90.152 |
1.25ms from Hong Kong,
HK
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Luxembourg, LU
What are IP address ranges?
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