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: 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: http://www.ccert.edu.cn remarks: abuse@cernet.edu.cn 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: 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 2025-08-15 abuse-mailbox: abuse@cernet.edu.cn 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: 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
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 |
| 202.38.184.0/21 | AS4538 | China Education and Research Network | 2,048 |
| 202.38.8.0/21 | AS4808 | China Institute of Atomic Energy | 2,048 |
| 202.38.180.0/22 | AS56268 | Northeast Dataa Network Pvt Ltd | 1,024 |
| 202.38.152.0/23 | AS4808 | Beijing Fouth Dimension Telecom Co,Ltd | 512 |
| 202.38.152.0/23 | AS4808 | Beijing Fouth Dimension Telecom Co,Ltd | 512 |
| 202.38.132.0/23 | AS4812 | SAIC VOLKSWAGEN AUTOMOTIVE CO.LTD. | 512 |
| 202.38.128.0/23 | AS7497 | Institute of High Energy Physics | 512 |
| 202.38.152.0/23 | AS17964 | Beijing Fouth Dimension Telecom Co,Ltd | 512 |
| 202.38.4.0/23 | AS212141 | IBKR Financial Services AG | 512 |
| 202.38.2.0/23 | AS4538 | China Education and Research Network | 512 |
| 202.38.152.0/23 | 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 |
21.77ms from Nanjing,
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 |
|---|---|---|
| 62.38.219.39 |
1.38ms from Athens,
GR
|
|
| 75.34.95.119 |
6.36ms from Atlanta,
US
|
|
| 186.155.92.55 |
1.02ms from Bogota,
CO
|
|
| 81.247.124.231 |
1.95ms from Brussels,
BE
|
|
| 41.143.63.231 |
8.07ms from Casablanca,
MA
|
|
| 85.190.151.7 |
5.52ms from Copenhagen,
DK
|
|
| 187.213.137.231 |
0.97ms from Guadalajara,
MX
|
|
| 213.140.202.103 |
6.66ms from Limassol,
CY
|
|
| 75.84.147.7 |
4.77ms from Los Angeles,
US
|
|
| 35.231.244.23 |
0.14ms from Moncks Corner,
US
|
|
| 90.46.77.55 |
2.56ms from Paris,
FR
|
|
| 52.70.121.135 |
0.22ms from Reston,
US
|
|
| 189.189.14.151 |
4.10ms from Santiago de Queretaro,
MX
|
|
| 101.35.44.23 |
1.32ms from Shanghai,
CN
|
|
| 43.145.120.135 |
1.20ms from Shanghai,
CN
|
|
| 37.3.40.23 |
0.66ms from Stockholm,
SE
|
|
| 110.253.193.87 |
6.58ms from Tianjin,
CN
|
|
| 119.119.63.247 |
7.93ms from Tieling,
CN
|
|
| 118.20.201.199 |
12.84ms from Tokyo,
JP
|
|
| 207.255.72.39 |
15.93ms from Washington,
US
|
|
| 190.175.171.247 |
18.03ms from Buenos Aires,
AR
|
|
| 181.107.255.135 |
10.73ms from Buenos Aires,
AR
|
|
| 64.136.231.7 |
4.24ms from Chicago,
US
|
|
| 24.206.79.39 |
0.83ms from Chicago,
US
|
|
| 52.176.55.215 |
0.34ms from Des Moines,
US
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Nanjing, 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.
Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.
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