If you are trying to unblock your own caller ID for a single outgoing call:
A common mobile code used to mask your number if you suspect you are blocked, though effectiveness varies by carrier. Ease of Use iPhone Settings Permanent management Android Phone App Recent callers * Landline ( 60) Traditional phones * Override Code ( 82) Single outgoing calls how unblock number
Dialing *60 allows you to manage a block list via voice prompts. Pros: Works on almost any traditional landline. If you are trying to unblock your own