Cloud IP

This is a project that checks if an IP is within a known IP-address range of cloud service providers.

The intention of this library is just to gather data of user behaviour.

If you think security-wise, a firewall rule is probably a better option. Or buy the DNS/WHOIS lookup database records.

Currently supported IP-address ranges to identify:

• LocalIp
• CloudFlare
• Fastly
• AWS
• GitHub
• GoogleCloud
• Azure
• OracleCloud

The principle of this library is:

• Collect the latest ip-address ranges file (CIDR routing tables) from the provider
• Check if your given IP matches within that range.

IP Support

• Supports both IPv4 and IPv6.
• Uses direct CIDR range matching for both address families.
• Treats local/private IPv4 and IPv6 ranges as LocalIp.

Provider Loading

• Provider ranges are fetched lazily on first use.
• Raw provider feeds are cached on disk in %LOCALAPPDATA%/CloudIP.
• The library refreshes provider data from the network on initial load and falls back to the cached copy if that refresh fails.

Provider Scope

• GitHub excludes actions to avoid broad Azure-backed runner ranges.
• GoogleCloud uses cloud.json, not goog.json.
• Azure uses the AzureCloud service tag only.
• OracleCloud uses OCI ranges tagged OCI only.
• IPv6 stays conservative per provider to avoid overclaiming very broad provider allocations.

Usage

Usage:

// Single:
let found, provider = CloudIP.Cloudservices.checkIp "192.168.1.0"

// Multiple:
let checkedIps = CloudIP.Cloudservices.checkIps [| "123.123.123.123"; "173.245.48.15" |]
checkedIps |> Array.iter(fun res -> printfn "%O" res)

Nuget: https://www.nuget.org/packages/CloudIP/