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 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 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
4,799 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 183.173.189.115 |
6.28ms from Tianjin,
CN
|
|
| 183.173.180.129 |
5.78ms from Beijing,
CN
|
|
| 183.173.185.15 |
5.26ms from Beijing,
CN
|
|
| 183.173.170.170 |
5.59ms from Beijing,
CN
|
|
| 183.173.186.158 |
6.95ms from Beijing,
CN
|
|
| 183.173.176.1 |
3.79ms from Tianjin,
CN
|
|
| 183.173.173.136 |
6.06ms from Beijing,
CN
|
|
| 183.173.158.98 |
6.13ms from Beijing,
CN
|
|
| 183.173.147.77 |
6.37ms from Beijing,
CN
|
|
| 183.173.175.148 |
6.66ms from Beijing,
CN
|
|
| 183.173.143.14 |
5.90ms from Beijing,
CN
|
|
| 183.173.139.16 |
6.39ms from Beijing,
CN
|
|
| 183.173.157.141 |
5.71ms from Tianjin,
CN
|
|
| 183.173.178.226 |
5.52ms from Tianjin,
CN
|
|
| 183.173.138.74 |
7.02ms from Beijing,
CN
|
|
| 183.173.174.26 |
5.72ms from Beijing,
CN
|
|
| 183.173.191.88 |
4.47ms from Tianjin,
CN
|
|
| 183.173.181.104 |
6.26ms from Beijing,
CN
|
|
| 183.173.128.1 |
3.60ms from Beijing,
CN
|
|
| 183.173.188.32 |
6.68ms from Tianjin,
CN
|
|
| 183.173.136.1 |
3.96ms from Tianjin,
CN
|
|
| 183.173.135.103 |
4.96ms from Beijing,
CN
|
|
| 183.173.140.89 |
6.05ms from Beijing,
CN
|
|
| 183.173.141.238 |
7.01ms from Beijing,
CN
|
|
| 183.173.150.162 |
6.01ms 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 |
|---|---|---|
| 168.11.226.2 |
7.83ms from Atlanta,
US
|
|
| 217.92.218.50 |
3.20ms from Berlin,
DE
|
|
| 20.1.199.242 |
0.29ms from Boydton,
US
|
|
| 188.93.154.162 |
0.36ms from Brussels,
BE
|
|
| 206.45.255.146 |
16.19ms from Chicago,
US
|
|
| 191.37.31.18 |
6.84ms from Curitiba,
BR
|
|
| 71.78.105.18 |
3.05ms from Dallas,
US
|
|
| 91.225.34.82 |
0.28ms from Frankfurt am Main,
DE
|
|
| 58.217.200.2 |
3.01ms from Huai'an,
CN
|
|
| 36.70.131.210 |
1.41ms from Jakarta,
ID
|
|
| 110.37.48.162 |
17.70ms from Karachi,
PK
|
|
| 88.135.112.2 |
14.73ms from Krasnodar,
RU
|
|
| 172.249.239.242 |
6.45ms from Los Angeles,
US
|
|
| 98.153.144.2 |
1.96ms from Los Angeles,
US
|
|
| 185.235.20.2 |
0.22ms from Milan,
IT
|
|
| 88.168.140.146 |
10.16ms from Paris,
FR
|
|
| 125.182.162.18 |
7.31ms from Seoul,
KR
|
|
| 203.117.189.98 |
0.85ms from Singapore,
SG
|
|
| 35.213.192.162 |
0.12ms from Sydney,
AU
|
|
| 113.25.106.98 |
1.33ms from Taiyuan,
CN
|
|
| 27.94.179.2 |
0.94ms from Tokyo,
JP
|
|
| 150.91.175.66 |
1.97ms from Tokyo,
JP
|
|
| 172.65.39.66 |
0.11ms from Wrocław,
PL
|
|
| 188.16.22.226 |
0.78ms from Yekaterinburg,
RU
|
|
| 70.171.36.50 |
12.37ms from Atlanta,
US
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Zhongwei, 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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