This number is listed as one of many numbers for Pinnacle Financial Group, a collection agency. They are a huge company and employ a multitude of people. It is therefore reasonable to assume that your experience with them if you dare talk to them will vary widely depending on their attitude, day of the week, etc., as well as yours. I have been called by the following Pinnacle Financial collection phone numbers:

202-559-4758    Washington, DC
205-383-1837    Birmingham, AL
213-784-2301    Los Angeles, CA
214-646-8816    Dallas, TX
316-448-6509    Wichita, KS
321-282-6395    Maitland, FL
323-244-4108    Los Angeles, CA
401-239-0471    Newport, RI
402-858-5086    Lincoln, NE
405-463-1570    Oklahoma City, OK
410-779-3600    Annapolis, MD
412-927-4113    McKeesport, PA
415-315-9238    San Francisco, CA
605-610-3483    Sioux Falls, SD
615-866-2722    Nashville, TN
630-352-3863    Naperville, IL
704-307-2386    Charlotte, NC
708-487-4194    Riverdale, IL
765-273-4568    Muncie, IN
786-623-2524    Miami, FL
801-386-8059    Salt Lake City, UT
802-735-1329    Bennington, VT
817-385-1085    Arlington, TX
830-268-4243    Pleasanton, TX
843-628-7630    Charleston, SC
845-206-4018    Poughkeepsie, NY
850-200-0413    Fort Walton, FL
863-808-4126    Lakeland, FL
866-994-0295    800 Service, US
866-994-1889    800 Service, US
877-209-4163    800 Service, US
877-350-0901    800 Service, US

Pinnacle Financial also appears to be associated with these following numbers:

216-502-3323    Cleveland, OH
302-724-6838    Dover, DE
304-932-0194    Charleston, WV
406-545-4356    Billings, MT    
503-505-6597    Beaver, OR
512-961-7459    Austin, TX
573-355-5651    Columbia, MO
585-563-3380    Rochester, NY
609-385-1122    Allentown, NJ
781-836-4014    Hingham, MA
786-539-5322    Miami, FL
800-513-6852    800 Service, US
803-767-4144    Columbia, SC
866-429-0866    800 Service, US
877-350-0901    800 Service, US
877-369-1985    800 Service, US
919-636-3772    Raleigh, NC
928-225-2103    Flagstaff, AZ
952-345-5374    Bloomington, MN
952-358-5908    Bloomington, MN

323 is Los Angeles. I only answered the first time because I thought it might have been about my in-laws who live in LA but like the first commenter said, I just got silence, weird clicky noises, and then a "The number you have dialed has been disconnected or is no longer in service." Haven't picked up since.

They call and call many times.. I dont answer im going to block this number...

Just called that number back and a man answered - Integrity Solutions. Google search shows Integrity Solutions as being in AZ, not CA....

Called me yesterday and today - I answered both times and they hung up right away without speaking - they are calling me on a "pay as you go" cell phone.

I answered the call on my cell. A woman asked for M____ R_______. I told her that I did not know anyone with that name. She apologized and hung up. Collection agency...just a guess.

I keep getting calls from this number and other last four variations.  They are now legally harassing me and have been advised I'm not the bith they are looking for.  If they continue, I will take the f****rs out.  Have a nice day.  They are very close!!!

I received another call from PINNACLE DEBT HARASSMENT in less than twelve hours from their last call. The number which showed up on my cells caller Id was an Oregon phone number.I am starting to worry that there is a rogue bill collector out there cruising from state to state with a Mission statement which consist of three words, Whatever It Takes. This also wouldn't surprise me since I saw on the news the other, wait a second someone is knocking on my door, brb...

Pinnacle will call you from a cali number one day then an Oklahoma number the next. They have been calling me almost every day for about two weeks now.

They call three to four times a day on my business cell phone.  Leaves no message
I am on no call list.  why am I'm getting these calls

keep getting calls but havent answered might call back and tell them stop calling

Twice today on my cell at work, but no message.

They harass my homes 3-5 times a day.

glad I didn't answer.  Where is 323 anyway?

HARRASSMENT, ON AN INVOICE THAT I DISPUTE AND THEY WILL NOT
DISCUSS SETTLEMENT- IT IS ABOUT 80.00

Dirty banana hat wearing rainbow flag waving b****ole lickers looking for love in all the wrong places.

Called and said it was a very important business call but not for me!  From someone else with the same last name.

calls my sell phone number all the time I never answer. I am on the no call list a lot of garbage calls of recent.

I get calls from many different numbers from all over the US and it's them, I have repeatedly told them I am not the man they are searching for (I'm a woman) but they call at least 10-12 times a day! This is pure harrassment! How do I make it stop?

Information Technology

Has called today from 323-244-4108 and 609-385-1122.  Deceptive a**holes.  File a complaint with the FTC.  This type of abuse needs to stop!

caller is Pinnacle Financial Group - debt collectors

calls my cell phone number all the time I never answer. I am on the no call list a lot of garbage calls of recent.

Answered a call from this number, getting only silence in return. After about a minute without a response, an automated voice said something along the lines of: "We're sorry, there is no one available to take your call. Please call us back at our regular business hours."