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Quick fixes for "Message Blocking is active" on your Android or iPhone
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Do you see "Free Msg: Unable to send message - Message Blocking is active" when trying to send a text? If you use T-Mobile, Mint, Boost, or another carrier that relies on T-Mobile's network, you'll usually see this error in the form of a separate text message in your inbox. "Message Blocking" usually means SMS is disabled for your account or you've blocked the person you're trying to text. Other times, it may be related to network settings on your Android or iPhone. Whatever the cause, there's usually an easy fix. This wikiHow article will teach you how to get rid of the "Message Blocking is active" error so you can send and receive texts.

Things You Should Know

  • If SMS messaging is disabled for your account, you may receive a text that says "Message Blocking is active."
  • "Message Blocking is active" may appear when you try to text somebody you've blocked, or if there's a problem with your APN or SMSC settings.
  • To rule out problems with your T-Mobile or other carrier account, call your carrier to let them know you're receiving this error.
1

Check your phone's block list.

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  1. Even if you didn't do it on purpose, it's a good idea to make sure you haven't accidentally blocked the number of the person you're trying to text. [1]
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5

Disable message blocking for your account.

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7

Disable Wi-Fi calling temporarily.

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  1. If you're still seeing "Unable to send message – Message Blocking is Active," this could be the quick fix you've been looking for. If disabling Wi-Fi calling doesn't make it possible for you to send messages again, you can turn it back on easily.
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9

Clear your Messages app cache (Android).

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11

Make sure your SMSC number is correct (Android).

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  1. For T-Mobile, Mint, Metro, and Boost, your SMSC code should be +12063130004 . [9] These steps may vary by Android, but you'll typically find an option called "Message Center" or "SMSC" in your Messages app. If your carrier requires a different SMSC number for SMS texting, you'll want to get that number for your carrier.
    • In your text messaging app, tap the menu icon (it's usually three vertical dots) and select Settings .
    • Tap More Settings .
    • Tap Text messages .
    • Under Message Center , you should see your carrier's SMSC number. For T-Mobile network providers, this should be +12063130004.
    • If you see a different number here and do not directly subscribe to T-Mobile, contact your provider to find out the correct number to use.
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12

Reset your APN settings.

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  1. If you purchased your phone from your carrier, there usually won't be a need to adjust these settings. But if you brought your phone from another provider or bought it elsewhere, the APN settings may be configured for a different provider. Resetting your APN settings to the defaults may fix the Message Blocking Active error.
    • Android:
      • Open Settings .
      • Tap Connections or Wireless & networks . The name of this menu varies depending on Android version. [10]
    • Tap Mobile networks (it may be buried in a More Settings menu).
      • Tap Access point names . On some models, this will be in a SIM menu.
      • Tap the three-dot menu and select Reset access points or Reset to default .
      • Tap Reset access points or Reset to confirm. [11]
    • iPhone:
      • Open Settings and select Cellular .
      • Tap Cellular Data Network . If you don't see this option, your iPhone doesn't have a way to view or reset APN details. In this case, contact the carrier to ensure that your APN details are correct. [12]
      • Tap Reset Settings .
13

Check your APN settings (Android).

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  1. This is rare, as most phones now generate APN settings automatically from the SIM. If you're using an older phone, you may need to enter or edit these settings manually. Note that it will be much easier to contact your provider than mess with these settings yourself! But if you'd like to try it, here's what to look for:
    • In Settings , open the Wireless & Networks or Connections menu.
    • Tap Mobile network (it may be in More , More settings , or More networks ).
    • Tap Access point names . On some models, this will be in a SIM menu.
    • Tap T-Mobile APN if you see it. If you don't, tap New APN to create one called T-Mobile now.
    • The APN value should be Fast.t-mobile.com (for LTE devices) or epc.t-mobile.com (for non-LTE).
    • Proxy, Port, Username, Password, Server, Authentication Type, MMS proxy, and MMS port should all be "Not set."
    • MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc .
    • MMS protocol: Wap 2.0
    • MCC: 310
    • MNC: 260
    • APN Type: This can be either default,supl,mms (stock Android) OR Internet+MMS (Samsung Galaxy).
    • APN Protocol & APN roaming protocol: IPv4/IPv6
    • Bearer: Unspecified.
    • Tap the menu key and save your changes. If you added a second APN, delete the first APN, and restart your Android. [13]
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14

Contact your cellular provider.

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