42.247.20.0/24
AS4538 · China Education and Research Network Center
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| Country |
China
|
| Domain | cernet.edu.cn |
| ASN | AS4538 |
| Registry | APNIC |
| ID | NJR-CERNET |
WHOIS Details
inetnum: 42.244.0.0 - 42.247.255.255 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: 2020-09-03T09:16:28Z 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: 42.246.0.0/15 descr: CERNET origin: AS4538 mnt-by: MAINT-CERNET-AP last-modified: 2017-03-14T04:00:08Z source: APNIC
Nearby Ranges
BGP prefixes that overlap with 42.247.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 42.247.1.0/24 | AS4538 | Chengdu, Sichuan 610054, China | 256 |
| 42.247.18.0/24 | AS4538 | Shanghai 200030, China | 256 |
| 42.247.30.0/24 | AS4538 | Shenyang, Liaoning 110004, China | 256 |
Hosted domains
There are 5 domain names hosted across 5 IP addresses on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 42.247.20.211 | ynjgy.edu.cn | 1 |
| 42.247.20.4 | yyz.edu.cn | 1 |
Hosted domains API
Pingable IPs
75 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 42.247.20.195 |
2.78ms 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 |
|---|---|---|
| 45.95.97.136 |
0.40ms from Amsterdam,
NL
|
|
| 197.94.53.104 |
2.03ms from Cape Town,
ZA
|
|
| 68.72.220.8 |
8.31ms from Chicago,
US
|
|
| 97.225.78.88 |
18.27ms from Dallas,
US
|
|
| 84.119.119.216 |
12.15ms from Frankfurt am Main,
DE
|
|
| 112.94.27.120 |
2.66ms from Guangzhou,
CN
|
|
| 89.190.6.8 |
9.69ms from Helsinki,
FI
|
|
| 117.102.26.8 |
5.45ms from Islamabad,
PK
|
|
| 50.69.167.72 |
14.02ms from Kelowna,
CA
|
|
| 94.248.17.24 |
10.49ms from Kyiv,
UA
|
|
| 73.27.114.184 |
12.76ms from Orlando,
US
|
|
| 34.225.174.120 |
0.22ms from Reston,
US
|
|
| 52.78.189.184 |
0.34ms from Seoul,
KR
|
|
| 54.255.133.216 |
0.13ms from Singapore,
SG
|
|
| 57.182.143.136 |
0.21ms from Tokyo,
JP
|
|
| 122.28.157.56 |
1.05ms from Tokyo,
JP
|
|
| 161.189.29.104 |
0.48ms from Zhongwei,
CN
|
|
| 104.239.47.8 |
0.20ms from Amsterdam,
NL
|
|
| 208.127.6.72 |
0.23ms from Ashburn,
US
|
|
| 96.247.177.168 |
19.65ms from Ashburn,
US
|
|
| 102.41.49.56 |
8.11ms from Cairo,
EG
|
|
| 175.162.101.120 |
8.36ms from Liaoyang,
CN
|
|
| 83.12.40.8 |
7.21ms from Poznan,
PL
|
|
| 54.225.196.168 |
0.11ms from Reston,
US
|
|
| 14.76.54.24 |
6.66ms from Seoul,
KR
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Guangzhou, 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.
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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