I have hdc2s0 to hdc2s3 in my contact list. What are these numbers and can I remove them safely?

[coiner]

I have hdc2s0 to hdc2s3 in my contact list. They are apparently by default on my O2 sim. When I click on them the "phone" number is 12345678 for each and all of them. Are they needed? Can they be removed? Please advise.

My phone is Samsung A21s.

[madasaf1sh · Accepted solution]

@coiner 

Never seen those numbers on any of my phones,  but if they are loaded on your sim then you may not be able to delete them.

But if you want to then delete them....  or just turn  off the phone using sim contacts

[MI5]

@coiner 

They are nonsense.

Just get rid of them.

[coiner]

Thank you guys. I deleted them and restarted my phone and they are not there any more. I don't know how they initially appeared and what purpose they served, but they were just bloating my contact list. Many thanks for the suggestions.