The contacts in my iPhone 5 are unmanageable. I want to clean them up so that when I'm looking for a name I don't have to sift through thousands of unwanted/duplicated contacts. I discovered the reason for so many unwanted contacts being there in the first place and adjusted the settings in my Gmail account so these unwanted contacts don't continue populating. For the purpose of focusing on the answer I'm looking for, from this point on I'm removing Google from the issue at hand. I've got the Google piece under control now and have turned off all options that would connect anything from Google to my current issue. Issue: I've cleaned up my contacts list in the Contacts app on my MacBook Pro, but every time I turn the Contacts switch back to "On" in the settings in my iPhone 5 all the old/unwanted/deleted contacts get added back to my phone. Here are the steps I took: 1) Saved my cleaned up contacts list to my computer as back-up. 2) On my iPhone I went into Settings > iCloud > and flipped the "Contacts" switch to "OFF" so that it would no longer update my contacts over the air. 3) Deleted all contacts from my iPhone. 4) Went into the Contacts app on my MBP and deleted all contacts. 5) Connected my iPhone to my MBP and used iTunes to sync the contacts. I wanted to make sure both devices were synched with NO CONTACTS in either of them, which was the case. 6) Imported my back-up file into the Contacts app on my MBP and the app now only showed the contacts I wanted. 7) On my iPhone I went into Settings > iCloud > and flipped the "Contacts" switch back to "ON". I figured this would transfer the cleaned-up list from my computer to my phone. Problem: All of my old contacts (thousands of them) start populating back onto the phone rather than the cleaned-up/desired list that is in the MBP Contacts app. I don't understand where these old contacts are coming from. I deleted them off the phone and off the computer and synched the two devices. Question: How do I delete the old contacts once and for all, or at least prevent them from being automatically added back to my phone? I'm already aware of some work-arounds (i.e. Google Contacts), but am not interested in hearing about those. I simply want to know about iCloud synching contacts between my Apple devices. Thanks for any help you may be able to provide.