Summary
Whose network is this address on?
It answers the question that normally costs a browser tab in the middle of an investigation — country, ASN, owner — and can answer it about the machine you are on without you finding your own address first.
What it is
A GeoIP and ASN lookup against the IPRout API. Give it an IPv4 or IPv6 address and it returns location and network ownership; ask without one and it resolves the caller's own address.
What you get
- GeoIP and ASN detail for any IPv4 or IPv6 address
- The same for the caller's own address, with nothing to pass
- Country, ASN and owning organization in a single response
Requirements
Node.js 18 or higher and an IPRout API key, which travels as an X-API-Key header. The API base URL is configurable and defaults to https://api.iprout.com.