223.2.0.0/18
AS4538 · China Education and Research Network Center
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| Country |
China
|
| Domain | cernet.edu.cn |
| ASN | AS4538 |
| Parent Range | 223.2.0.0/15 |
| Registry | APNIC |
| ID | NJR-CERNET |
WHOIS Details
inetnum: 223.2.0.0 - 223.3.255.255 netname: NJR-CERNET descr: China Education and Research Network descr: Nanjing Regional Network country: CN admin-c: CER-AP tech-c: CER-AP abuse-c: AC1685-AP status: ALLOCATED PORTABLE 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: 2020-09-03T09:16:12Z 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: [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: 223.2.0.0/15 descr: CERNET origin: AS4538 mnt-by: MAINT-CERNET-AP last-modified: 2010-07-15T07:00:01Z source: APNIC
Overlapping Ranges
BGP prefixes that contain 223.2.0.0/18
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 223.2.0.0/15 | AS4538 | China Education and Research Network | 131,072 |
Nearby Ranges
BGP prefixes that overlap with 223.2.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 223.2.0.0/15 | AS4538 | China Education and Research Network | 131,072 |
Hosted domains
There are 14 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 223.2.2.2 | jdhkp.top | 13 |
| 223.2.35.159 | homecheng.top | 1 |
Hosted domains API
Pingable IPs
27 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 223.2.9.89 |
7.01ms from Shanghai,
CN
|
|
| 223.2.10.160 |
6.72ms from Shanghai,
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 |
|---|---|---|
| 207.4.56.66 |
13.73ms from Ashburn,
US
|
|
| 96.70.156.66 |
7.07ms from Ashburn,
US
|
|
| 50.168.232.18 |
1.05ms from Atlanta,
US
|
|
| 44.254.25.210 |
0.09ms from Boardman,
US
|
|
| 89.155.234.50 |
1.81ms from Braga,
PT
|
|
| 184.58.200.226 |
5.47ms from Chicago,
US
|
|
| 54.194.143.2 |
0.17ms from Dublin,
IE
|
|
| 188.107.83.50 |
16.11ms from Frankfurt am Main,
DE
|
|
| 92.72.69.130 |
5.00ms from Frankfurt am Main,
DE
|
|
| 158.177.79.34 |
0.74ms from Frankfurt am Main,
DE
|
|
| 91.248.119.210 |
6.08ms from Hamburg,
DE
|
|
| 182.189.119.178 |
1.71ms from Islamabad,
PK
|
|
| 77.94.133.194 |
0.66ms from Ljubljana,
SI
|
|
| 73.156.155.194 |
5.22ms from Miami,
US
|
|
| 202.16.133.2 |
9.86ms from Osaka,
JP
|
|
| 15.229.251.18 |
0.84ms from Osasco,
BR
|
|
| 46.52.158.2 |
0.40ms from Samara,
RU
|
|
| 76.20.4.98 |
11.24ms from San Jose,
US
|
|
| 136.24.62.146 |
1.39ms from Santa Clara,
US
|
|
| 175.118.133.162 |
5.25ms from Seoul,
KR
|
|
| 175.113.163.162 |
1.57ms from Seoul,
KR
|
|
| 202.4.80.2 |
0.48ms from Sydney,
AU
|
|
| 118.80.23.2 |
4.19ms from Taiyuan,
CN
|
|
| 20.222.144.82 |
0.16ms from Tokyo,
JP
|
|
| 73.152.46.242 |
7.34ms from Ashburn,
US
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
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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