121.49.16.0/20
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 121.49.16.0/20
| 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
1 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 121.49.18.5 |
35.97ms 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 |
|---|---|---|
| 202.110.7.132 |
9.28ms from Dalian,
CN
|
|
| 83.143.70.20 |
1.14ms from Dronten,
NL
|
|
| 209.121.119.52 |
2.73ms from Kelowna,
CA
|
|
| 174.73.190.164 |
4.82ms from Phoenix,
US
|
|
| 44.210.150.52 |
0.41ms from Reston,
US
|
|
| 54.205.210.212 |
0.18ms from Reston,
US
|
|
| 73.40.157.116 |
12.55ms from Washington,
US
|
|
| 14.2.25.20 |
11.08ms from Adelaide,
AU
|
|
| 94.46.217.4 |
0.17ms from Amsterdam,
NL
|
|
| 128.176.119.68 |
5.98ms from Amsterdam,
NL
|
|
| 69.84.139.4 |
8.02ms from Boston,
US
|
|
| 217.9.245.100 |
0.09ms from Bucharest,
RO
|
|
| 3.13.19.36 |
0.12ms from Columbus,
US
|
|
| 104.60.62.20 |
10.07ms from Columbus,
US
|
|
| 79.237.181.84 |
5.04ms from Duesseldorf,
DE
|
|
| 115.198.49.4 |
6.34ms from Hangzhou,
CN
|
|
| 194.169.168.20 |
0.20ms from Hong Kong,
HK
|
|
| 18.60.142.116 |
1.53ms from Hyderabad,
IN
|
|
| 64.4.174.4 |
0.17ms from Los Angeles,
US
|
|
| 31.176.158.36 |
4.25ms from Novi Travnik,
BA
|
|
| 74.99.142.116 |
3.15ms from Philadelphia,
US
|
|
| 187.168.35.116 |
3.89ms from Santiago de Queretaro,
MX
|
|
| 189.167.39.196 |
7.99ms from Santiago de Queretaro,
MX
|
|
| 54.151.206.180 |
0.10ms from Singapore,
SG
|
|
| 126.47.35.148 |
4.59ms from Tokyo,
JP
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Vientiane, LA
What are IP address ranges?
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