Numbers with this prefix were first introduced in 2005.While 2535091837 was originally issued with the info above, the owner of the phone number (253) 509-1837 may have transferred it through a process called porting.
Caller type: Telemarketer
Called my cell phone this afternoon. I didn't answer and no voicemail was left. I called back to verify who called and only got a brief recording to "press 1 to be taken off call list" or something similar. Therefore figured was some sort of telemarketer.
Caller type: Scammer/Fraudster
Called my CELL PHONE about noon today. I didn't answer and no message was left. My call blocker app noted this number was a scammer (Scam Likely) and the number was blocked from now on. I called back a couple hours later and rec'd first a recording with a male voice saying "Press 1 to be removed from our calling list." This was followed by a female voice saying "Goodbye." I hung up without pushing any buttons.