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What is US01LV: ‘Wireless customer is not available’ error?

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  • 4 min read

Telecommunications tech has come a long way from landline phones, but it still is far from perfect. Random carrier codes, bugs and glitches keep popping up from time to time, indicating some sort of an issue every so often.

In this article, we’re talking about the US01LV message you get when calling an AT&T number, its causes and what you can do to fix the problem.

What causes the US01LV error?

The US01LV error code usually shows up when you try to call an unreachable AT&T number. There are a number of reasons why this might happen, including.

  • The recipient is in a poor coverage area.
  • The recipient’s phone is off.
  • Your number has been blocked.
  • The number you’re calling doesn’t support incoming calls. 

Also read: What is PPS6180?

How to fix US01LV error?

Here are six fixes you can try out to resolve the US01LV: ‘Wireless customer is not available’ error.

Try again after some time

This error is most common because the recipient’s number is in an out-of-coverage area or isn’t powered on. Try calling again after some time and the call should go through. 

Restart your phone

If you’re on the receiving end of a call ending in the US01LV error message, restarting your device is a good idea. Restarting can fix all sorts of random bugs and glitches on your device and resets your device’s communication software and hardware to reconnect to your network often getting you better connectivity after the restart. 

Try calling other numbers

One thing you can do to determine whether or not the issue is at your end is to try and call other numbers. If you’re experiencing the issue only when dialling one number, there’s a pretty good chance that the recipient’s network is at fault here. If not, you should contact customer support for your respective carrier to sort out the issue.

Also read: How to fix error code 4002?

Send an SMS

SMSs usually go through even when the receiving number is in an area with spotty connectivity. If your SMS can get through, there’s a chance that calling will also work once they get to an area with better coverage. 

Check if you’ve been blocked

If the recipient has blocked your numbers, your calls are likely to terminate in this error code. Check with the recipient to see if your number has been accidentally blocked, Once unblocked, your calls should go through just fine. 

Alternatively, it might also be possible that you’ve accidentally blocked the person you’re trying to call. So check your blocklist as well to see if that’s the case. If it is, unblock the number and try again. 

Reach out to AT&T  customer support

Last but not least, if nothing else seems to be working for you your best bet is to reach out to AT&T’s customer support and have them fix the issue for you. There’s a chance that this might just be AT&T’s fault and nothing wrong on your end, or you might be experiencing the issue because of parameters beyond your control. In Either of these cases, AT&T customer support should be able to get you back on the network in no time. 

Also read: What is Everything you need to know

Yadullah Abidi

Yadullah is a Computer Science graduate who writes/edits/shoots/codes all things cybersecurity, gaming, and tech hardware. When he's not, he streams himself racing virtual cars. He's been writing and reporting on tech and cybersecurity with websites like Candid.Technology and MakeUseOf since 2018. You can contact him here:

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