Unable to Search Contacts by Last Name Only (Last Name = Numbers)

[Textbook]

I do store tech support for a coffee company with over 150 stores. I have contacts synced to my Exchange account with the first name Store and the last name their store number. With my old phone (Samsung Galaxy Nexus) I could do a search contacts and just enter the last name, such as 354 and it would bring up Store 354. With the LG G2, if I type in just 354 it will only bring up phone numbers that have 354 in it. Store 354 does not show up in the results. If I type in "Store 354" it shows up. Is the phone seeing "just numbers" in my search query and thinking it doesn't need to search names? Is there any setting I can change to fix this? Thanks.

 

[Mike.757]

Try opening up your contacts, select settings and select "list by" and select last name. Not sure if that will help but it might.

 

[Textbook]

Thank you for your reply. Unfortunately I have already tried changing those settings without success. I may just install a different ROM/firmware.