1.51.16.0/20
AS4538 · China Education and Research Network Center
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| Country |
China
|
| Domain | cernet.edu.cn |
| ASN | AS4538 |
| Parent Range | 1.51.0.0/16 |
| Registry | APNIC |
| ID | NJR-CERNET |
WHOIS Details
inetnum: 1.51.0.0 - 1.51.255.255 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: 2020-09-03T09:16:03Z 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: [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 route: 1.51.0.0/16 descr: CERNET origin: AS4538 mnt-by: MAINT-CERNET-AP last-modified: 2010-07-15T07:00:01Z source: APNIC
Overlapping Ranges
BGP prefixes that contain 1.51.16.0/20
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 1.51.0.0/16 | AS4538 | China Education and Research Network | 65,536 |
Nearby Ranges
BGP prefixes that overlap with 1.51.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 1.51.0.0/16 | AS4538 | China Education and Research Network | 65,536 |
Hosted domains
There are 3 domain names hosted across 3 IP addresses on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 1.51.27.51 | ika123.cn | 1 |
Hosted domains API
Pingable IPs
16 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 1.51.26.5 |
6.44ms from Shanghai,
CN
|
|
| 1.51.25.92 |
6.22ms from Shanghai,
CN
|
|
| 1.51.27.173 |
7.12ms from Shanghai,
CN
|
|
| 1.51.29.58 |
7.50ms from Shanghai,
CN
|
|
| 1.51.18.6 |
6.63ms from Shanghai,
CN
|
|
| 1.51.24.3 |
6.19ms from Shanghai,
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 |
|---|---|---|
| 217.66.243.212 |
7.39ms from Amman,
JO
|
|
| 104.45.15.244 |
0.17ms from Amsterdam,
NL
|
|
| 5.76.26.196 |
19.37ms from Astana,
KZ
|
|
| 3.22.118.20 |
0.65ms from Columbus,
US
|
|
| 87.104.0.132 |
0.77ms from Copenhagen,
DK
|
|
| 137.255.169.132 |
1.69ms from Cotonou,
BJ
|
|
| 70.114.107.52 |
7.06ms from Dallas,
US
|
|
| 52.48.10.148 |
0.18ms from Dublin,
IE
|
|
| 124.225.130.4 |
0.52ms from Haikou,
CN
|
|
| 218.7.241.132 |
13.01ms from Harbin,
CN
|
|
| 88.248.139.148 |
3.81ms from Istanbul,
TR
|
|
| 3.96.80.84 |
0.17ms from Montreal,
CA
|
|
| 77.51.61.84 |
1.63ms from Moscow,
RU
|
|
| 59.96.103.100 |
15.32ms from Mumbai,
IN
|
|
| 133.6.159.20 |
4.09ms from Osaka,
JP
|
|
| 179.104.219.196 |
6.27ms from Osasco,
BR
|
|
| 52.23.43.100 |
0.21ms from Reston,
US
|
|
| 72.22.243.116 |
5.83ms from Salt Lake City,
US
|
|
| 211.204.202.36 |
1.55ms from Seoul,
KR
|
|
| 143.178.103.4 |
3.74ms from Amsterdam,
NL
|
|
| 72.28.191.212 |
12.53ms from Atlanta,
US
|
|
| 139.18.121.20 |
6.41ms from Berlin,
DE
|
|
| 92.224.194.68 |
4.81ms from Berlin,
DE
|
|
| 88.242.113.20 |
3.96ms from Bursa,
TR
|
|
| 14.107.157.100 |
2.52ms from Chongqing,
CN
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Tokyo, JP
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