I want to block unknown number on my iphone5 - Apple iPhone Smartphone

Call your provider they can add a feature so no private calls go through without them adding a *.. Before your number to show there number.

You should be able to block unknown numbers. Right now I don remember how to do it since I haven work with an iPhone for a long, long time. Also check to see if there is any app that can block spam and unknown numbers.
But give this a try.

• From iPhone App: Goto Recents Tab-> tap "i" next to number you want to block-> scroll to bottom & choose "block this caller".

Go to recent calls, then info on that call. Use the copy feature on "Unknown Caller". Then go to Contacts, touch + to add a new contact. Use the paste feature for the following: first name, last name, company, phone number. Touch done and you will see an option to block caller. Then in Settings you can go to your Phone, Blocked, and you should see it listed alphabetically with any others you may have. I have an iPhone 5 with iOS 7.0.6. Good luck

Unknown callers should have a number that appears with no name - these can be blocked post call or in the Settings/Phone/Blocked Callers section. Unknown calls with no number can only be blocked from the carrier side - you would have to contact your provider.

Your question is a little bit confusing but let me try to understand the goal you wish to achieve: i believe you dont want to receive calls or messages from some numbers in your contact list. If thats the case and you have already added them to the block list then you dont have to delete these numbers. Let them stay in the blocked list and you wont be able to receive any call from these numbers. However of its someone who is stalking you then he or she may use a different number, in that case your best bet is to change your number.

Most carriers offer this service. I know that verizon lets you set the numbers yourself through my verizon, but a quick log on to your online account should present the option to set blocked numbers.

1. • 1 Press "*60," then press "#" on the keypad. Wait for a dial tone.
     
   • 2 Dial the phone number you want to block, the press the "#" key.
     
   • 3 Repeat steps 1 and 2 to add up to six numbers to the block list.
     

Here's a handy little application that you can purchase for your phone that will allow you to block unknown numbers.
http://nokia-e5-00-software.epocware.com/Handy_Blacklist.html

Using Call Block
If you subscribe to Caller ID, you can save phone numbers to the call block list. When a call comes in, the phone compares the received phone number to the numbers on the call block list. If the phone number is on the list, the phone replaces the caller's name with Call Blocked and disconnects the call. (The caller hears a reject tone.)

The call block list holds 20 entries, and all stations share the same list. You can add entries through the Call Blocking menu, by selecting Add Call Block in the CID menu, or by blocking incoming calls. (Only one station can edit the call block list at a time.)

Blocking incoming calls

1. When the phone rings, wait until the display shows the Caller ID information (usually after the second ring).
2. If you want to block the call and add this number to the call block list, press Block.
3. When the phone asks you to confirm, press Menu/select or Block. Blocking an incoming call from an "Unknown" or "Private" number is the same as selecting Unknown Number or Private Number from the Call Blocking menu.

Call Blocking menu options

1. With the phone in standby, open the menu and select Call Blocking.
2. Choose one of these options:

• Create New(Handset only) - Add an entry to your call block list. The phone will prompt you to enter a name & phone number.
• Private Number(Handset only) - Block all calls from numbers reported by CID as "Private." (This does not count as one of the 20 entries.)
• Unknown Number(Handset only) - Block all calls from numbers reported by CID as "Unknown". (This does not count as one of the 20 entries.)

Call block entry options

1. With the phone in standby, open the call block list and find the entry you want.
2. Press Menu/select to open the individual entry menu. Choose one of these options:

• Edit(Handset only) - Edit this entry. The phone will prompt you to edit the name & phone number.
• Delete - Erase this entry from the list & allow calls from this number.

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514