202.38.140.0/23
AS4538 · China Education and Research Network Center
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| Country |
China
|
| Domain | cernet.edu.cn |
| ASN | AS4538 |
| Registry | APNIC |
| ID | BJR-CERNET |
WHOIS Details
inetnum: 202.38.140.0 - 202.38.141.255 netname: BJR-CERNET descr: China Education and Research Network descr: Beijing Regional Network country: CN admin-c: CER-AP tech-c: CER-AP abuse-c: AC1685-AP status: ASSIGNED PORTABLE remarks: origin AS4538 remarks: old STU-CN returned by 19960101 mnt-by: APNIC-HM mnt-lower: MAINT-CERNET-AP mnt-routes: MAINT-CERNET-AP mnt-irt: IRT-CERNET-AP last-modified: 2020-09-03T09:16:12Z 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
Nearby Ranges
BGP prefixes that overlap with 202.38.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 202.38.192.0/18 | AS4538 | South China University of Technology | 16,384 |
| 202.38.64.0/19 | AS4538 | The University of Science and Technology of China | 8,192 |
| 202.38.8.0/21 | AS4808 | China Institute of Atomic Energy | 2,048 |
| 202.38.184.0/21 | AS4538 | China Education and Research Network | 2,048 |
| 202.38.180.0/22 | AS56268 | Northeast Dataa Network Pvt Ltd | 1,024 |
| 202.38.128.0/23 | AS7497 | Institute of High Energy Physics | 512 |
| 202.38.4.0/23 | AS212141 | IBKR Financial Services AG | 512 |
| 202.38.2.0/23 | AS4538 | China Education and Research Network | 512 |
| 202.38.132.0/23 | AS4812 | SAIC VOLKSWAGEN AUTOMOTIVE CO.LTD. | 512 |
| 202.38.152.0/23 | AS17964 | Beijing Fouth Dimension Telecom Co,Ltd | 512 |
| 202.38.139.0/24 | AS56072 | 301 Fairfield Road | 256 |
| 202.38.157.0/24 | AS23921 | INGDIRECT, Sydney | 256 |
| 202.38.134.0/24 | AS4812 | SAIC VOLKSWAGEN AUTOMOTIVE CO.LTD. | 256 |
Hosted domains
There are no domains currently hosted on this ASN.
Hosted domains API
Pingable IPs
3 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 202.38.140.113 |
15.99ms 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 |
|---|---|---|
| 181.23.197.7 |
1.04ms from Buenos Aires,
AR
|
|
| 173.26.84.55 |
16.15ms from Chicago,
US
|
|
| 108.160.229.151 |
7.46ms from Chicago,
US
|
|
| 34.252.169.183 |
0.14ms from Dublin,
IE
|
|
| 109.151.239.199 |
9.72ms from Erith,
GB
|
|
| 20.90.122.71 |
0.19ms from London,
GB
|
|
| 65.1.75.87 |
0.10ms from Mumbai,
IN
|
|
| 89.157.205.7 |
7.52ms from Paris,
FR
|
|
| 65.9.97.167 |
0.20ms from Prague,
CZ
|
|
| 98.84.45.151 |
0.18ms from Reston,
US
|
|
| 13.65.118.7 |
0.13ms from San Antonio,
US
|
|
| 76.103.20.119 |
5.54ms from San Jose,
US
|
|
| 15.164.186.103 |
0.21ms from Seoul,
KR
|
|
| 23.198.45.247 |
0.09ms from Sydney,
AU
|
|
| 1.85.140.247 |
7.06ms from Xi'an,
CN
|
|
| 120.0.226.87 |
10.84ms from Beijing,
CN
|
|
| 75.213.248.7 |
16.67ms from Chicago,
US
|
|
| 138.91.55.199 |
0.16ms from Dublin,
IE
|
|
| 90.202.63.23 |
4.95ms from Erith,
GB
|
|
| 217.232.14.55 |
2.35ms from Frankfurt am Main,
DE
|
|
| 73.241.11.103 |
7.26ms from Fremont,
US
|
|
| 14.184.55.135 |
2.05ms from Ho Chi Minh City,
VN
|
|
| 76.109.46.247 |
4.15ms from Miami,
US
|
|
| 194.119.215.135 |
14.92ms from Rome,
IT
|
|
| 186.201.113.23 |
0.87ms from São Paulo,
BR
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Shanghai, CN
What are IP address ranges?
IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.
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