To block a phone number on your Samsung Galaxy Core Prime with Straight Talk, you can use the built-in Phone or Contacts app, or follow Straight Talk's shortcode instructions. iPhone blocking methods differ and use Phone, FaceTime, Messages, or Settings apps. iPhone can block from Settings under Privacy & Security > Blocked Contacts > Add Blocked Contact.
Block a phone number on your Samsung Galaxy Core Prime: Introduction
Samsung's support pages for the Galaxy Core Prime link to general Galaxy blocking help, which shows the current blocking paths in the Contacts and Phone apps, but does not provide a Core Prime-specific procedure. Straight Talk documents Android call blocking through the Phone app settings and a shortcode text flow. Three methods are available: using the Phone app, using the Contacts app, or using Straight Talk's shortcode to receive instructions or download a call-blocking app.
Block a number using the Phone app
You can block a number from your call log or recent calls. To block from Recents, open the Phone app, go to the Recent tab, tap the number you want to block, tap the "i" icon, then tap "Block" and confirm in the pop-up. Samsung's Phone app path: Open Phone > More options (three vertical dots) > Settings > Block numbers > enter the number > tap Add. Samsung's Recents block path: Open Recents, select a number, then tap Block and confirm. Straight Talk also provides Android guidance for blocking unknown callers: open the Phone app, tap the three-dot menu, go to Settings, tap Block Numbers, and turn on Block Unknown Callers. This method is part of how to block calls and numbers on any phone.
Block a contact using the Contacts app
Open the Contacts app, tap the contact you want to block, then tap the three-dot menu. Select "Block contact" and confirm with "Block." An alternative path is through Samsung Messages: open the conversation, touch and hold it, tap More, then Block, and confirm again. Samsung Messages path: Contacts tab > More options > Settings > Block numbers and spam > Block numbers. You can also go to Contacts tab, tap More options, select Settings, then Block numbers and spam, and tap Block numbers. Straight Talk notes that texting BLOCK to 611611 sends instructions on blocking a number in Contacts.
Use Straight Talk's shortcode to block numbers
Straight Talk offers a shortcode method for blocking. Text BLOCK to 611611 to receive instructions on blocking a number in your Contacts and/or to download the call detector app. Text SPAM to 611611 to download the call block app. These shortcodes are documented by Straight Talk support as a way to manage unwanted calls and texts.
Frequently Asked Questions
Does blocking a number stop both calls and texts?
Yes, blocking a number on the Samsung Galaxy Core Prime using the Phone or Contacts app prevents both calls and text messages from that number.
Will the blocked caller be notified that their number has been blocked?
No, the blocked caller will not receive any notification that their number has been blocked.
Is there a limit to the number of phone numbers I can block?
How can I review and manage the blocked numbers list?
From there, you can view the list and unblock numbers by tapping the minus icon next to each entry.
Does Samsung document a Galaxy Core Prime-specific blocking menu?
The retrieved Core Prime model pages point to Samsung's general Galaxy blocking help, but the detailed steps shown are the general Galaxy phone steps rather than a separate Core Prime-only flow.
Does Straight Talk document a different method for iPhone?
No iPhone-specific Straight Talk blocking steps appeared in the retrieved material; the Straight Talk page retrieved was for Android.
For the wider topic, see blocking calls and numbers.













