219.242.64.0/20
AS4538 · China Education and Research Network Center
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| Country |
China
|
| Domain | cernet.edu.cn |
| ASN | AS4538 |
| Parent Range | 219.242.0.0/15 |
| Registry | APNIC |
| ID | CERNET-CN |
WHOIS Details
inetnum: 219.242.0.0 - 219.243.255.255 netname: CERNET-CN 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: origin AS4538 remarks: confederation mnt-by: APNIC-HM mnt-lower: MAINT-CERNET-AP mnt-routes: MAINT-CERNET-AP mnt-irt: IRT-CERNET-AP last-modified: 2020-10-20T00:56:47Z 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
Overlapping Ranges
BGP prefixes that contain 219.242.64.0/20
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 219.242.0.0/15 | AS4538 | China Education and Research Network | 131,072 |
Nearby Ranges
BGP prefixes that overlap with 219.242.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 219.242.0.0/15 | AS4538 | China Education and Research Network | 131,072 |
Hosted domains
There are no domains currently hosted on this ASN.
Hosted domains API
Pingable IPs
3 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 219.242.68.162 |
4.23ms from Beijing,
CN
|
|
| 219.242.65.9 |
3.60ms 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 |
|---|---|---|
| 104.183.11.52 |
7.30ms from Atlanta,
US
|
|
| 110.137.133.180 |
9.78ms from Batam,
ID
|
|
| 15.235.28.52 |
0.07ms from Beauharnois,
CA
|
|
| 43.135.112.100 |
0.31ms from Hong Kong,
HK
|
|
| 34.186.5.100 |
0.16ms from Las Vegas,
US
|
|
| 213.202.4.116 |
0.88ms from London,
GB
|
|
| 94.88.199.4 |
4.05ms from Rome,
IT
|
|
| 209.204.191.36 |
2.79ms from San Jose,
US
|
|
| 187.169.200.244 |
3.99ms from Santiago de Queretaro,
MX
|
|
| 119.108.194.164 |
7.72ms from Tieling,
CN
|
|
| 52.195.123.180 |
0.22ms from Tokyo,
JP
|
|
| 64.227.70.4 |
0.20ms from Amsterdam,
NL
|
|
| 18.215.180.212 |
0.54ms from Ashburn,
US
|
|
| 41.143.73.228 |
8.09ms from Casablanca,
MA
|
|
| 50.22.132.36 |
1.04ms from Dallas,
US
|
|
| 117.161.81.116 |
1.50ms from Hohhot,
CN
|
|
| 47.76.103.164 |
0.90ms from Hong Kong,
HK
|
|
| 217.156.222.100 |
3.53ms from London,
GB
|
|
| 159.233.114.4 |
5.12ms from Phoenix,
US
|
|
| 27.194.29.180 |
9.26ms from Qingdao,
CN
|
|
| 92.139.90.4 |
10.30ms from Saint-Denis,
FR
|
|
| 218.52.99.116 |
1.53ms from Seoul,
KR
|
|
| 49.234.224.68 |
1.53ms from Shanghai,
CN
|
|
| 20.28.183.244 |
0.70ms from Sydney,
AU
|
|
| 40.143.219.68 |
3.98ms from Boston,
US
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Johannesburg, ZA
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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