183.173.128.0/18
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 Center, address: FIT-3-220, 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: abuse@cernet.edu.cn was validated on 2026-03-05 mnt-by: MAINT-CERNET-AP last-modified: 2026-03-05T06:39:56Z source: APNIC role: ABUSE CERNETAP country: ZZ address: Network Center, address: FIT-3-220, 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 2026-03-05 abuse-mailbox: abuse@cernet.edu.cn mnt-by: APNIC-ABUSE last-modified: 2026-03-05T06:40:20Z 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 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 183.173.128.0/18
| 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
663 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 183.173.166.189 |
6.03ms from Beijing,
CN
|
|
| 183.173.143.54 |
6.61ms from Beijing,
CN
|
|
| 183.173.144.1 |
3.24ms from Beijing,
CN
|
|
| 183.173.169.41 |
5.36ms from Beijing,
CN
|
|
| 183.173.176.1 |
2.14ms from Beijing,
CN
|
|
| 183.173.139.197 |
5.11ms from Beijing,
CN
|
|
| 183.173.185.144 |
5.47ms from Beijing,
CN
|
|
| 183.173.131.130 |
5.66ms from Beijing,
CN
|
|
| 183.173.150.142 |
5.18ms from Beijing,
CN
|
|
| 183.173.180.228 |
5.68ms from Beijing,
CN
|
|
| 183.173.168.1 |
3.92ms from Beijing,
CN
|
|
| 183.173.188.237 |
5.00ms from Beijing,
CN
|
|
| 183.173.146.166 |
6.38ms from Beijing,
CN
|
|
| 183.173.128.1 |
4.13ms from Tianjin,
CN
|
|
| 183.173.182.177 |
6.41ms from Beijing,
CN
|
|
| 183.173.130.235 |
5.07ms from Beijing,
CN
|
|
| 183.173.156.187 |
7.30ms from Beijing,
CN
|
|
| 183.173.152.1 |
3.48ms from Beijing,
CN
|
|
| 183.173.162.107 |
5.86ms from Tianjin,
CN
|
|
| 183.173.138.226 |
7.00ms from Beijing,
CN
|
|
| 183.173.160.1 |
3.22ms from Beijing,
CN
|
|
| 183.173.190.242 |
7.41ms from Beijing,
CN
|
|
| 183.173.170.34 |
5.74ms from Beijing,
CN
|
|
| 183.173.174.96 |
12.88ms from Jining,
CN
|
|
| 183.173.183.251 |
9.20ms 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 |
|---|---|---|
| 73.208.89.2 |
5.27ms from Chicago,
US
|
|
| 76.244.7.50 |
2.69ms from Dallas,
US
|
|
| 37.24.160.226 |
6.20ms from Frankfurt am Main,
DE
|
|
| 39.124.51.98 |
3.33ms from Incheon,
KR
|
|
| 116.123.90.18 |
6.74ms from Incheon,
KR
|
|
| 204.13.105.130 |
14.10ms from Kingston,
JM
|
|
| 160.119.186.82 |
15.08ms from Lomé,
TG
|
|
| 109.181.87.210 |
4.21ms from London,
GB
|
|
| 5.80.8.34 |
5.41ms from London,
GB
|
|
| 136.239.25.162 |
3.88ms from New Orleans,
US
|
|
| 158.120.182.2 |
9.60ms from New Orleans,
US
|
|
| 74.76.24.178 |
16.04ms from New York City,
US
|
|
| 151.181.193.2 |
9.81ms from New York City,
US
|
|
| 74.92.69.82 |
7.68ms from New York City,
US
|
|
| 27.202.226.82 |
8.97ms from Qingdao,
CN
|
|
| 131.100.47.114 |
1.04ms from Sao Jose do Rio Preto,
BR
|
|
| 216.56.48.82 |
9.28ms from Sioux Falls,
US
|
|
| 113.232.239.98 |
8.02ms from Tieling,
CN
|
|
| 43.234.138.2 |
15.48ms from Tokyo,
JP
|
|
| 195.29.91.82 |
2.84ms from Zagreb,
HR
|
|
| 168.25.1.98 |
4.89ms from Atlanta,
US
|
|
| 12.251.214.130 |
11.34ms from Atlanta,
US
|
|
| 173.184.172.18 |
6.81ms from Atlanta,
US
|
|
| 100.20.151.66 |
0.21ms from Boardman,
US
|
|
| 35.167.15.130 |
0.20ms from Boardman,
US
|
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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