| Prefix | Company | Number of IPs |
|---|---|---|
| 128.150.0.0/16 | U.S. National Science Foundation | 65,536 |
| 192.12.209.0/24 | U.S. National Science Foundation | 256 |
| 198.181.231.0/24 | U.S. National Science Foundation | 256 |
| 2620:10f:6000::/40 | U.S. National Science Foundation | 3.09 × 1026 |
IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.
AS102 has no peers recorded.
Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.
AS102 uses these Autonomous Systems as its upstreams.
An upstream (or transit provider) is another AS that AS102 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.
AS102 has no downstreams recorded.
A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.
Discover your public IP address and detailed information about your connection.
Convert CIDR notation to IP address ranges and vice versa. Useful for network configuration and security.
Perform a reverse DNS (rDNS) lookup to get the hostname for an IP address.
Expand or collapse IPv6 addresses to their full or shortened forms for better readability and usage.
We think you’re in ...
Did we get it right?
Waiting for location...
Our policy for safe geolocation means we don’t identify specific individuals or households. When you submit your location here, we only keep a lower-accuracy version for a limited amount of time, without any other identifying data.
Read how this works in our privacy policy