Block a number directly from your call log or contacts

On most LG phones, the fastest way to block a number is to open your Phone app, find the number in your call history, and press and hold it until a menu appears. Look for an option that says "Block number," "Block contact," or "Add to reject list" — the exact wording depends on your LG model and Android version. Tap it, and calls from that number will go straight to voicemail without ringing your phone.

If you want to block someone already in your contacts, open the Contacts app, find their name, tap the three-dot menu at the top right, and select "Block contact." This prevents calls, texts, and notifications from that person. The blocked contact won't know they're blocked — the call will straightforward fail on their end after a few rings.

Some LG models also let you block a number by opening a text message from that sender, pressing and holding the message, and choosing "Block number" from the menu. This works the same way as blocking from the call log.

Key Takeaways

  • Press and hold any number in your call log, then tap "Block number" or "Add to reject list" to block it when ready.
  • Open a contact's details, tap the three-dot menu, and select "Block contact" to prevent calls and texts from that person.
  • Blocked numbers go to voicemail and cannot reach you by call, text, or notification.
  • You can view and unblock numbers anytime in your Phone app settings under "Blocked numbers" or "Reject list."
  • LG phones running Android 10 or newer may also let you block numbers through the Phone app's settings menu.

Access your blocked list in Phone settings

To see which numbers you've already blocked, open your Phone app and look for a menu icon (three horizontal lines or three dots) at the top. Tap "Settings" or "Call settings," then look for "Blocked numbers," "Reject list," or "Block list." This screen shows every number you've blocked and lets you unblock any of them if you change your mind.

The exact path varies by LG model. On some phones it's Phone app > Settings > Blocked numbers. On others it's Phone app > Menu > Settings > Call rejection > Reject list. If you can't find it in the Phone app, try opening Settings > Apps > Phone > Permissions or Settings > Call settings directly.

Block numbers through your Phone app settings menu

Newer LG phones running Android 10 or later often have a dedicated blocking feature in the Phone app itself. Open the Phone app, tap the menu icon, go to Settings, and look for "Spam protection," "Call blocking," or "Block numbers." Some versions let you block unknown callers automatically, which sends all calls from numbers not in your contacts to voicemail.

If your LG has this feature, you can also choose to block calls from private numbers (those that show as "Unknown" or "Restricted"). This is useful if you're getting repeated calls from telemarketers or scammers who hide their numbers. Toggle the option on, and those calls will be silenced.

Use your carrier's blocking service for extra protection

Your mobile carrier — whether it's Verizon, AT&T, T-Mobile, or another provider — may offer its own call-blocking service that works across all your devices. These services often catch spam and robocalls before they reach your phone. Check your carrier's website or call their customer service to learn what blocking tools they offer and whether there's a cost.

Carrier-level blocking is sometimes more effective than phone-level blocking because it stops unwanted calls before they even ring your device. Many carriers now offer free spam-blocking features as part of their standard service, while others charge a small monthly fee for advanced protection.

Unblock a number if you change your mind

To unblock a number on your LG, open the Phone app, go to Settings, and find your blocked list. Press and hold the number you want to unblock, then tap "Unblock" or "Remove from blocked list." The number will when ready be able to reach you again by call and text.

If you unblock someone by mistake, you can block them again using the same method you used the first time. There's no limit to how many times you can block and unblock numbers.

What happens when you block a number

When you block a number on your LG phone, calls from that number go directly to voicemail without your phone ringing or showing a notification. Text messages from blocked numbers may be hidden in a separate folder or deleted automatically, depending on your phone's settings. The blocked person won't receive a message saying they're blocked — their call will straightforward ring and then go to voicemail as if your phone is busy or off.

Blocked numbers cannot see your online status, last seen time, or read receipts if you use messaging apps like WhatsApp or Facebook Messenger. However, blocking someone in your phone's native call and text system does not automatically block them on social media or other apps — you may need to block them separately in those services.

Frequently Asked Questions

Will a blocked person know they're blocked?

No. When someone you've blocked calls you, their call goes to voicemail after a few rings, just as if your phone were off or busy. They won't receive a notification that they're blocked. If they text you, the message may be silently deleted or hidden depending on your settings.

Can I block a number without saving it to my contacts?

Yes. You can block any number directly from your call log or a text message without ever adding it to your contacts. Just press and hold the number and select "Block number." This is the fastest way to block spam or unknown callers.

What if I block someone and then want to see their old messages?

On most LG phones, blocking someone doesn't delete their past messages — it only prevents new ones from reaching you. You can still view old text conversations in your Messages app. However, new texts from that person will be hidden or deleted automatically depending on your settings.

Can I block a number that keeps changing?

If you're getting calls from many different numbers, blocking them one at a time won't solve the problem. Instead, use your carrier's spam-blocking service or enable "Block unknown callers" in your Phone app settings. This sends all calls from numbers not in your contacts to voicemail.

Does blocking work for international numbers?

Yes. You can block international numbers the same way you block any other number — just press and hold it in your call log and select "Block." The number will be blocked regardless of what country it's from.