they said they were from smw heating................

Dead air and hang up. Caller ID said SMW.

There is an SMW Heating in Tempe, which would be consistent with this phone number, but why they're calling companies whose heating would be provided by the building where we lease ELUDES ME.

Caller ID said SMW....left no msg.  Same as "e"... This building has heat and A/C included in the rent.  Why they would be calling is a mystery.  However, been getting a lot of spoofed calls from numbers all over the country lately.  Is a royal P-I-T-A.... and the Do Not Call List is a waste of time cuz they don't take care of spam, Telemarketers, spoofers and all of those that claim political, charity, etc who are not as they claim.  I think the Do Not Call List was a good idea originally.  But, this world has grown out of honesty, ethics, legit and has grown Into liars, cheats and hackers.!!

They are still calling.... If I put the number on my block list, they then change the last digit.  Started out as 480-500-5304..then 5305...then 5306...now it's 5307.!!  Guess this says they are not legit and probably not from some heating company.  However, IF it really is from SMW heating in Tempe.... DO  NOT  USE  them for any heating business.  Business is probably as Low-life as their phone calls.!!!!!!!

Ditto the last comment.
scum of the lowest order