No ANY records found for 18.248.16.
Try 248.16 instead?
id 46369, opcode QUERY, rcode NXDOMAIN, flags QR RD RA ;QUESTION 18.248.16. IN ANY ;ANSWER ;AUTHORITY . 86370 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2024122600 1800 900 604800 86400 ;ADDITIONAL
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