121.49.200.0/21
AS4538 · China Education and Research Network Center
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| Country |
China
|
| Domain | cernet.edu.cn |
| ASN | AS4538 |
| Parent Range | 121.48.0.0/15 |
| Registry | APNIC |
| ID | CDR-CERNET |
WHOIS Details
inetnum: 121.48.0.0 - 121.49.255.255 netname: CDR-CERNET descr: China Education and Research Network descr: Chengdu 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: 2020-09-03T09:16:00Z 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: 121.48.0.0/16 descr: CERNET origin: AS4538 mnt-by: MAINT-CERNET-AP last-modified: 2009-01-05T03:10:57Z source: APNIC
Overlapping Ranges
BGP prefixes that contain 121.49.200.0/21
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 121.48.0.0/15 | AS4538 | China Education and Research Network | 131,072 |
Nearby Ranges
BGP prefixes that overlap with 121.49.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 121.48.0.0/15 | AS4538 | China Education and Research Network | 131,072 |
Hosted domains
There are no domains currently hosted on this ASN.
Hosted domains API
Pingable IPs
7 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 121.49.201.102 |
15.88ms from Chengdu,
CN
|
|
| 121.49.200.2 |
14.30ms from Chengdu,
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 |
|---|---|---|
| 92.69.77.53 |
12.51ms from Amsterdam,
NL
|
|
| 40.139.107.85 |
7.95ms from Atlanta,
US
|
|
| 13.226.158.229 |
0.29ms from Duesseldorf,
DE
|
|
| 154.205.115.37 |
0.92ms from Hong Kong,
HK
|
|
| 103.67.240.21 |
1.47ms from Jakarta,
ID
|
|
| 122.139.139.181 |
14.19ms from Liaoyang,
CN
|
|
| 108.203.9.181 |
2.88ms from Los Angeles,
US
|
|
| 70.62.145.149 |
6.70ms from Milwaukee,
US
|
|
| 109.252.250.5 |
1.75ms from Moscow,
RU
|
|
| 184.74.110.53 |
13.10ms from New York City,
US
|
|
| 80.221.136.69 |
10.01ms from Oulu,
FI
|
|
| 139.60.1.181 |
0.91ms from Reston,
US
|
|
| 172.185.157.117 |
0.65ms from San Jose,
US
|
|
| 183.114.93.181 |
1.85ms from Seoul,
KR
|
|
| 111.81.219.165 |
16.47ms from Taichung,
TW
|
|
| 77.60.186.213 |
2.66ms from Amsterdam,
NL
|
|
| 86.108.184.53 |
2.06ms from Ankara,
TR
|
|
| 111.163.47.245 |
5.23ms from Beijing,
CN
|
|
| 173.21.121.21 |
10.79ms from Chicago,
US
|
|
| 74.41.174.117 |
16.47ms from Chicago,
US
|
|
| 152.193.196.165 |
0.56ms from Dallas,
US
|
|
| 66.163.144.133 |
16.17ms from Des Moines,
US
|
|
| 198.176.166.21 |
1.98ms from Durham,
US
|
|
| 151.21.155.69 |
1.61ms from Milan,
IT
|
|
| 167.62.28.149 |
1.69ms from Montevideo,
UY
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Taellberg, SE
What are IP address ranges?
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