183.173.0.0/18
AS4538 · China Education and Research Network Center
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| Country |
China
|
| Domain | cernet.edu.cn |
| ASN | AS4538 |
| Parent Range | 183.172.0.0/14 |
| Registry | APNIC |
| ID | BJR-CERNET |
WHOIS Details
inetnum: 183.172.0.0 - 183.175.255.255 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: NS2.NET.EDU.CN remarks: DNS.EDU.CN remarks: DNS2.EDU.CN 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: 2020-09-03T09:16:13Z 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: 183.172.0.0/14 descr: CERNET origin: AS4538 mnt-by: MAINT-CERNET-AP last-modified: 2009-11-25T07:36:58Z source: APNIC
Overlapping Ranges
BGP prefixes that contain 183.173.0.0/18
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 183.172.0.0/14 | AS4538 | China Education and Research Network | 262,144 |
Nearby Ranges
BGP prefixes that overlap with 183.173.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 183.172.0.0/14 | AS4538 | China Education and Research Network | 262,144 |
Hosted domains
There are no domains currently hosted on this ASN.
Hosted domains API
Pingable IPs
3,509 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 183.173.3.65 |
2.37ms from Beijing,
CN
|
|
| 183.173.27.106 |
6.72ms from Beijing,
CN
|
|
| 183.173.36.100 |
4.75ms from Beijing,
CN
|
|
| 183.173.11.116 |
4.75ms from Beijing,
CN
|
|
| 183.173.12.158 |
6.03ms from Beijing,
CN
|
|
| 183.173.17.21 |
6.62ms from Beijing,
CN
|
|
| 183.173.15.63 |
6.38ms from Beijing,
CN
|
|
| 183.173.16.1 |
3.77ms from Beijing,
CN
|
|
| 183.173.22.20 |
5.29ms from Beijing,
CN
|
|
| 183.173.38.12 |
5.55ms from Beijing,
CN
|
|
| 183.173.14.211 |
5.59ms from Beijing,
CN
|
|
| 183.173.37.137 |
5.31ms from Tianjin,
CN
|
|
| 183.173.33.157 |
6.35ms from Tianjin,
CN
|
|
| 183.173.35.85 |
6.50ms from Beijing,
CN
|
|
| 183.173.25.17 |
4.45ms from Beijing,
CN
|
|
| 183.173.24.1 |
3.16ms from Beijing,
CN
|
|
| 183.173.26.115 |
4.46ms from Beijing,
CN
|
|
| 183.173.40.1 |
2.26ms from Beijing,
CN
|
|
| 183.173.9.197 |
5.40ms from Beijing,
CN
|
|
| 183.173.34.107 |
6.05ms from Beijing,
CN
|
|
| 183.173.32.1 |
3.64ms from Beijing,
CN
|
|
| 183.173.4.1 |
3.36ms from Beijing,
CN
|
|
| 183.173.30.218 |
6.04ms from Beijing,
CN
|
|
| 183.173.31.86 |
3.67ms from Beijing,
CN
|
|
| 183.173.8.193 |
3.97ms 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 |
|---|---|---|
| 220.192.30.162 |
4.30ms from Chongqing,
CN
|
|
| 206.232.68.18 |
0.52ms from Frankfurt am Main,
DE
|
|
| 1.53.225.50 |
1.77ms from Ho Chi Minh City,
VN
|
|
| 157.119.221.2 |
1.86ms from Jakarta,
ID
|
|
| 70.57.146.226 |
10.23ms from Minneapolis,
US
|
|
| 201.48.203.162 |
1.13ms from Osasco,
BR
|
|
| 201.37.168.18 |
0.73ms from Porto Alegre,
BR
|
|
| 124.131.227.162 |
8.08ms from Qingdao,
CN
|
|
| 201.124.122.162 |
3.75ms from Santiago de Queretaro,
MX
|
|
| 120.207.64.18 |
7.34ms from Taiyuan,
CN
|
|
| 34.168.50.82 |
0.15ms from The Dalles,
US
|
|
| 57.133.2.162 |
5.04ms from Zaragoza,
ES
|
|
| 213.189.136.146 |
1.09ms from Zuerich,
CH
|
|
| 62.166.163.178 |
3.54ms from Amsterdam,
NL
|
|
| 111.207.161.130 |
3.23ms from Beijing,
CN
|
|
| 179.51.212.2 |
1.23ms from Buenos Aires,
AR
|
|
| 87.61.167.34 |
1.02ms from Copenhagen,
DK
|
|
| 34.27.91.162 |
0.11ms from Council Bluffs,
US
|
|
| 142.67.166.194 |
3.76ms from Halifax,
CA
|
|
| 149.233.207.210 |
0.45ms from Hamburg,
DE
|
|
| 82.140.5.242 |
0.37ms from Hamburg,
DE
|
|
| 202.83.160.194 |
0.82ms from Islamabad,
PK
|
|
| 76.74.157.2 |
0.46ms from Los Angeles,
US
|
|
| 92.207.150.50 |
3.24ms from Manchester,
GB
|
|
| 136.239.132.2 |
1.76ms from Manila,
PH
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Beijing, 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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