loosing contacts on iphone

[Rick]

I owned a iphone5 and it started loosing my contacts, they just vanished, so had to add all my contacts back in manually, it done this twice, so I assumed it was a phone issue, so I then purchased a as new iphone 6+, had all my contacts in place, then this morning I went to call my wife and nearly all my contacts were gone again, I am at a loss as to whats going on and why the contacts are being deleted, I dont use icloud or that crap, I could search google but thought i'd ask here first

[ol' boy]

Not much help Rick, but the old iPhone 3GS i have does that with Photos
Then they might turn up again after power cycling a few times.

Very strange indeed.
Hope you get the contacts sorted.

Are they synced to an email account?
(most people do that these days)

[gulliver]

Funny,that happened to my Android Telstra ZTE phone too.

[shred]

Are they synced to an email account?
(most people do that these days)

That is my first thought. Is your phone getting synced with iTunes on a desktop PC and iTunes is configured to sync contacts with Outlook (or something like that)?

[Rick]

No not synced

[ol' boy]

Which iOS is the iPhone running Rick?
Have you upgraded the iOS recently perhaps?

Tried a "Forced Restart" of your iPhone?

[Rick]

Which iOS is the iPhone running Rick?
Have you upgraded the iOS recently perhaps?

Tried a "Forced Restart" of your iPhone?

ios 10.2.1, was updated prior to fitting my sim card, tried forced start still nothing, I may have to do a restore from a backup

[lsemmens]

Are you using iHate, err, iTunes? I'm wondering if that has decided what you don't need.