202.204.64.0/20
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: 202.204.0.0 - 202.207.255.255 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: ALLOCATED PORTABLE remarks: origin AS4538 mnt-by: APNIC-HM mnt-lower: MAINT-CERNET-AP mnt-routes: MAINT-CERNET-AP mnt-irt: IRT-CERNET-AP last-modified: 2020-09-03T09:16:26Z 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
Hosted domains
There are no domains currently hosted on this ASN.
Hosted domains API
Pingable IPs
45 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 202.204.67.21 |
3.94ms from Tianjin,
CN
|
|
| 202.204.64.144 |
3.36ms from Beijing,
CN
|
|
| 202.204.70.9 |
3.32ms from Beijing,
CN
|
|
| 202.204.74.201 |
3.33ms from Beijing,
CN
|
|
| 202.204.73.102 |
3.27ms from Beijing,
CN
|
|
| 202.204.65.158 |
3.23ms from Beijing,
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 |
|---|---|---|
| 108.28.191.148 |
2.25ms from Ashburn,
US
|
|
| 101.6.239.164 |
2.23ms from Beijing,
CN
|
|
| 220.194.124.132 |
5.22ms from Beijing,
CN
|
|
| 192.237.218.68 |
1.17ms from Dallas,
US
|
|
| 181.214.10.20 |
1.63ms from Delhi,
IN
|
|
| 34.253.107.36 |
0.14ms from Dublin,
IE
|
|
| 125.201.33.196 |
11.52ms from Osaka,
JP
|
|
| 78.23.51.148 |
7.15ms from Roubaix,
FR
|
|
| 178.45.233.164 |
8.57ms from Samara,
RU
|
|
| 189.150.231.20 |
9.41ms from Santiago de Queretaro,
MX
|
|
| 176.230.156.148 |
1.20ms from Tel Aviv,
IL
|
|
| 189.248.104.4 |
8.10ms from Tucson,
US
|
|
| 193.121.237.164 |
2.07ms from Brussels,
BE
|
|
| 41.36.71.52 |
7.17ms from Cairo,
EG
|
|
| 35.208.75.132 |
0.11ms from Council Bluffs,
US
|
|
| 67.10.17.196 |
4.84ms from Dallas,
US
|
|
| 93.215.125.52 |
4.22ms from Duesseldorf,
DE
|
|
| 49.67.34.180 |
8.20ms from Huai'an,
CN
|
|
| 78.147.221.164 |
8.95ms from London,
GB
|
|
| 86.143.121.180 |
4.87ms from London,
GB
|
|
| 144.174.82.20 |
9.87ms from Miami,
US
|
|
| 176.211.59.164 |
8.31ms from Moscow,
RU
|
|
| 174.59.121.196 |
19.68ms from Reston,
US
|
|
| 49.167.59.180 |
8.02ms from Seoul,
KR
|
|
| 3.105.1.196 |
0.14ms from Sydney,
AU
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in New York City, US
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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