flash.keithsmithinternetmarketing.com

[techlists at phpcoderusa.com]

I own the domain keithsmithinternetmarketing.com.  It is not hosted.  
About 7 years ago I ran a server at my home office with the host flash 
and the domain keithsmithinternetmarketing.com.

I had Cox create a reverse lookup.  They say they no longer have the 
reverse lookup and they are moving away from that stuff.

Fast forward today and I keep seeing references to 
flash.keithsmithinternetmarketing.com as I try to debug my DNS.

I am wondering how I can find where that DNS record is being served up?  
I have contacted the company that has been doing my DNS and they say 
they are not supporting that domain and my ISP is not supporting that 
domain.

Any thoughts on how I can find the offending zone?

One last tidbit is that flash.keithsmithinternetmarketing.com is 
associated with my public IP address.

Thankyou for any help!!

Keith