Open your phone app
Tap Recents or Call History
Look for calls marked as blocked, private, unknown, or no caller ID
Check your voicemail inbox for messages from unknown numbers
Open the voicemail app or visual voicemail
Review the blocked, spam, or filtered messages folder
Check your phone’s call blocking or spam settings
Look in your carrier’s voicemail or spam voicemail section
Contact your mobile carrier for blocked voicemail access
Disable call blocking or spam filtering temporarily if needed
Ask the caller to leave a new voicemail from an unblocked number