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RIR Searches

This client support the RIR searches specified in RFC 9910.

Relationship Searches

The relationship queries (rdap-up, rdap-down, rdap-top, rdap-bottom) are supported for IP networks, autonomous system numbers (autnums) and domains in the reverse DNS (in-addr.arpa and ip6.arpa).

They may be explicitly specified using the -t command line parameter:

# Explicit query type for IP address 'rdap-up'
# Use '--help' to see the full list.
rdap -t v4-up 192.0.2.1

Query values may also be prepended with "up:", "down:", "top:", and "bottom:" to infer the type of they query value. In most cases, this is easier to use:

rdap up:192.0.2.1

Handle and Name Searches

Searching by name and handle for networks and autnums requires explicitly specifying the type with -t. These are:

  • net-handle
  • net-name
  • autnum-handle
  • autnum-name
rdap -t net-handle FOONET-1

Some RIRs place relationship links (i.e., referrals) in RDAP. This allows the client to follow links from one RIR to another.

# Follow to parent networks (less specific)
rdap --up 192.0.2.1

# Follow to child networks (more specific)
rdap --down 192.0.2.1

# Follow to least specific network
rdap --top 192.0.2.1

# Follow to most specific network
rdap --bottom 192.0.2.1

See Link Targets for more information.