whois queries at irr.lacnic.net (port 43)

The LACNIC IRR database can be queried via port 43 whois at irr.lacnic.net. UTF-8 encoding is always used, although many objects conform to 7-bit ASCII.

You can query the IRR objects via a whois client or open a socket directly to the port. For example:

Whois

• whois -h irr.lacnic.net <maintainer>

• whois -h irr.lacnic.net <IP address>

• whois -h irr.lacnic.net AS<autonomous system number>

Telnet

• maintainer

telnet irr.lacnic.net 43 (Establish connection with the LACNIC IRR)

<maintainer> (Specify the maintainer being queried)

• aut-num

telnet irr.lacnic.net 43 (Establish connection with the LACNIC IRR)

AS<autonomous system number> (Specify the aut-num being queried)