How can I automatically save a number in my contact book?

[AC Question]

automatically save a number in my contact book

i exchange my htc desire 526 with panasonic eluga-I.. Without formating my htc cell phone.. Now a have a number (redacted) which i have deleted several times but it automatically saved to my contact list.. What should i do? Please help

 

[pdb5627]

Re: automatically save a number in my contact book

Could that number have been synced to a backup service, e.g. by your provider, and keep getting pushed back to the phone from the backup?