Have received a number of auto (robo) call offering air duct cleaning from this co. in Arizona.  I'm in CA.  Even if I had answered, I wouldn't schedule work done thru AZ.  I dn't know anyone in AZ and don't answer these calls.

Got a call from this number Arizona caller ID. When answering machine answered, hung up.

stop calling!!! get a real job!!!!

Given your difficult situation, the only thing I can suggest is to change your landline number, switch to a cell phone. With a cell, you can assign a "no-ring" ringtone to this number so this robocall will simply ring silently and won't bother you and legit calls will still ring normally (though a robo-dialer that continually spoofs their calling number will defeat this tactic). If you change your landline number, you'll get away from this robodialer but are still vulnerable to other robodialers and because you answer your phone, robodialers will keep calling you once they find you. You are a preferred target for robodialers because you answer your phone reliably. You obviously have CallerID -- can you not pick up on numbers you don't recognize or does your job require answering all calls?

so sick and tired of this BULL S*** over and over daily with all these mother yes MOTHER F****RS!!!!!!!!!!!!!!! calling me!!!!!!!!!!!!!! it is soooooooooooo unfair I cannot take a nap or ANYTHING and I basically work 24/7 and cannot turn off my ringer!!! due to a possible maybe family emergency ...and NO unlike the rest of the world I DO NOT have a cell phone!!! and don't have my nose stuck into it 24/7!!!!!! F****D UP WORLD!!!!!!!!!!!

My disabled 88 year old mother (who is on the DNC list) gets daily multiple calls from this a-hole solicitor. I wish I could send a mass murderer and get rid of them permanently.

Called three times in succession again. This time with the prefix +11. like an international call. +11-602-224-6600. WTF is that?

Called me 3 timews in rapid succession. Robo nuiscance.

They called again this morning and my spouse hung up on them.  Wish calling with robocalls and spoofed numbers was a JAILABLE offense.  Petition CONGRESS.  These crooked sleezeballs need to be on a chain gang in the hot sun in pink underwear eating bologna sandwiches.  That's my opinion and I'm sticking to it.

They called again today and my spouse just hung up on them.  BLEEPERS.

Scum bags left a recorded call on voicemail: "Sam, of Air Duct Services ........"  So this confirms they are robocalling scum and the number is spoofed too.  Called back and got a weird recording that the call could not be connected and to contact customer service, click, voices in background, then message repeated.  I don't think that was a phone company message but an automatic message put up for incoming phone calls to this number.  Who knows?   The whole situation just reeks of crime and scam.  Hey, owner of 800notes, do you think you could include another category of call type for
SPOOFED number
CRIMINAL ENTERPRISE
SCAMMER
and others?>????

Just got two calls today from them.  I called back and got a weird message (not like the phone company) that my call could not be completed and to contact customer service, then a click, and voice in the background and the message repeated.  What the BLEEP?

Called again this morning.  BLEEP.  Caller ID showed ARIZONA.  Gee, that was helpful.

Telemarketing call even though I am a no call list.  I had a really bad experience with a company like this last year who came out, did a very unprofessional job and left without even putting their name, address or phone number on a generic receipt pad.  The Truck had no phone number either and the name could not be traced. Oh, it was a big bait and switch and wanted to up the duct cleaning by about $300 or more for a better, upgraded job.

Called and left no message. Annoying.  I am on Do Not Call list.

Got 5 calls in 20 seconds. Firewall blocked them. They just kept calling. Still comes up as pens international.

I live in Whittier Ca. and received a call about cleaning my air ducts from this number.

Got a call on 04/24/2012 at 10:25am.  Did not answer.  If Pens International is defunct, it is still being listed in some business online directories.

I have received several calls  from this number.  It comes back to Pens International in Phoenix, AZ.  This is a defunct corporation and the owner on record is deceased.  So, it looks like any calls coming from this number are being spoofed by a telemarketing jerk somewhere else.  I blocked this number, but it bothers me that the dead guy's family could get blamed for some greedy idiot telemarketer's crime.

Got a call. Didn't answer. Goolgle searched number. Linked back to Pens International, In Phoenix, AZ. Blocked