How to Block or Unblock a Phone Number on Android and iPhone in 2026 (Super Easy Guide)

We’ve all been there. That one number keeps calling or sending annoying messages at the wrong time; maybe an ex, a spam caller, or someone you just don’t want to talk to right now. Or maybe you blocked someone by mistake, and now you need to fix it. Whatever the reason, knowing how to block or unblock a number quickly is something every phone user should know.

In 2026, it’s easier than ever on both Android and iPhone. I’ll walk you through the simplest ways step by step, so even if you’re not a phone expert, you can do it without stress. I’ll cover Android, iPhone, WhatsApp, and a few extra tips that make life easier.

Why People Block Numbers

Sometimes it’s to stop spam calls that wake you up at night. Other times it’s to create space from someone you don’t want to speak to. Blocking doesn’t mean the person knows; their calls just go straight to voicemail or don’t go through. Unblocking is just as simple when you change your mind.

How to Block a Number on Android (2026)

Most Android phones (Samsung, Google Pixel, Xiaomi, etc.) have similar steps.

Using the Phone App (Easiest Way):

1. Open the Phone app (the one you use to make calls).
2. Go to your Recent calls or Contacts.
3. Find the number you want to block and tap on it.
4. Tap the three dots (more options) at the top right.
5. Select “Block” or “Block number”.
6. Confirm. Done.

The number won’t be able to call or message you anymore. You can also block unknown or private numbers in the settings.

Block from Messages App:

1. Open Messages.
2. Open the conversation with the number.
3. Tap the three dots → Block or Report spam.

This works for SMS too.

How to Unblock a Number on Android

1. Open the Phone app.
2. Tap the three dots → Settings → Blocked numbers.
3. Find the number and tap the “X” or “Unblock” next to it.
4. Confirm.

It’s that simple. The person can now call and message you again.

How to Block a Number on iPhone (iOS 2026)

Apple makes it very straightforward.

Using the Phone App:

1. Open the Phone app.
2. Go to Recents or Contacts.
3. Tap the “i” next to the number.
4. Scroll down and tap “Block this Caller”.
5. Confirm.

From Messages:

1. Open Messages.
2. Open the conversation.
3. Tap the contact name at the top.
4. Scroll down and tap “Block this Caller”.

Blocked callers go straight to voicemail, and their messages don’t appear.

How to Unblock on iPhone

1. Open Settings.
2. Tap “Phone” → “Blocked Contacts”.
3. Find the number and swipe left → Unblock.

Or go to the contact and tap “Unblock this Caller”.

Blocking on WhatsApp (Very Popular in Nigeria)

WhatsApp is used by almost everyone, so blocking there is important too.

On Android or iPhone:

1. Open WhatsApp.
2. Go to the chat with the person.
3. Tap the name at the top.
4. Scroll down and tap “Block”.
5. Confirm.

To unblock:

1. Go to WhatsApp Settings → Account → Privacy → Blocked contacts.
2. Find the person and tap “Unblock”.

They won’t be able to message or call you on WhatsApp, but they can still call your normal number, unless you blocked that too.

Using Truecaller or Other Apps

Many people in Nigeria use Truecaller to block spam.

1. Open Truecaller.
2. Go to the number.
3. Tap Block.
4. You can also create lists for “Spam”, “Sales”, etc.

Truecaller is good for automatically blocking known spam numbers.

Extra Tips That Make Life Easier

• Block Unknown Callers: On iPhone, go to Settings → Phone → Silence Unknown Callers. On Android, look for similar options in Phone settings.
• Do Not Disturb Mode: Use this to silence calls from everyone except important contacts.
• Report Spam: When you block, report the number if it’s spam. This helps everyone.
• Multiple Numbers: You can block as many as you want. There’s no limit on most phones.
• Check the Blocked List Regularly: Every few months, review who you blocked in case you want to unblock someone.

What Happens When You Block Someone?

• They can’t call or message you.
• Their calls go to voicemail (they might not even know they’re blocked).
• You won’t see their messages.
• On WhatsApp, they see “online,” but messages don’t deliver.

Unblocking reverses all that.

Common Problems and Fixes

• Still getting calls after blocking → Make sure you blocked the exact number. Sometimes people call from different numbers.
• Can’t find the blocked list → Search your phone settings for “Blocked”.
• Blocked by mistake → Unblock immediately using the steps above.
• App not working → Update your phone software and the Phone/Messages app.

Final Thoughts

Blocking or unblocking a number in 2026 is quick and easy on both Android and iPhone. Whether it’s through the Phone app, WhatsApp, or apps like Truecaller, you have full control. Take a minute to do it when you need to, and review your blocked list once in a while.

Your phone should work for you, not stress you out. Now you know exactly how to handle unwanted numbers.

Stay in control of your phone and your peace.