IPLibre
IPLibre
Enter an IPv4, IPv6, or ASN to retrieve geolocation, network, company, privacy and abuse details. You can also query it via the API or download the database.
The ASN (Autonomous System Number) is a unique number assigned to an autonomous system, used to identify the network. ASN
AS23911
The RIR (Regional Internet Registry) is the organization responsible for managing ASN allocation in a specific region. RIR
APNIC
The type of ASN. Can be business, isp, hosting, government, or education. Type
business
Website
cernet.edu.cnRelated ASNs have the same name or website. Related
IPv4 CIDRs
2
IPv4 addresses
512
IPv6 CIDRs
2
IPv6 addresses
65537
| AS4538 | |
| AS6939 | |
| AS4635 | |
| AS3491 | |
| AS1273 | |
| AS38255 | |
| AS59265 | - |
| AS24489 | |
| AS23910 | - |
| AS45110 | |
| AS6939 | |
| AS9401 | |
| AS3491 | |
| AS1273 | |
| AS11537 | |
| AS23910 | - |
| AS24489 | |
| AS24482 | |
| AS38255 | |
| AS45110 | |
| AS59265 | - |
| AS4538 | |
| AS20965 | |
| AS4635 | |
| 210.25.187.0/24 |
| 210.25.189.0/24 |
| 2001:252::/32 |
| 2001:7fa:5::/48 |
City
-
Country
Coordinates
0, 0
Timezone
-
We transparently share the source used to determine a likely location for this IP address. Source
whois
curl iplib.re/AS23911
{
"network": {
"rir": "APNIC",
"asn": 23911,
"name": "China Next Generation Internet Beijing IX",
"type": "business",
"website": "cernet.edu.cn",
"related": [
24361,
24352,
9405,
24362,
24364,
24489,
24369,
24370,
24372,
24349,
24357,
24358,
24371,
132553,
4538,
38255,
38027,
24490,
24355,
24350,
138371,
138378,
24363,
138369,
9401,
24353,
24302,
24348
]
},
"connectivity": {
"upstreams": [
4538,
6939,
4635,
3491,
1273
],
"downstreams": [
38255,
59265,
24489,
23910,
45110
],
"peers": [
6939,
9401,
3491,
1273,
11537
]
},
"location": {
"source": "whois"
},
"abuse": {
"email": "abuse@cernet.edu.cn",
"phone": "+86-10-6278-4049"
},
"ipv4": {
"ranges": [
"210.25.187.0/24",
"210.25.189.0/24"
],
"cidrs": 2,
"ips": 512
},
"ipv6": {
"ranges": [
"2001:252::/32",
"2001:7fa:5::/48"
],
"cidrs": 2,
"ips": 65537
}
}