No ANY records found for 251.194.117.
Try 194.117 instead?
id 50176, opcode QUERY, rcode NOTIMP, flags QR RD RA ;QUESTION 251.194.117. IN ANY ;ANSWER ;AUTHORITY ;ADDITIONAL
whatsmydns.net ANY Record Lookup tool lets you query DNS servers and get instant results.
Looking for easier to understand results? Use the Global DNS Checker tool.