As you probably know, Iceland's economy is in deep trouble. It would not surprise me if 09 (on which Yackie is based) cannot pay their roaming bills. This will be a new test of global cooperation to see if carriers worldwide will once again allow +354 numbers to use their networks, or if it will be cut off for good. When I call in to 09 numbers, I am still getting the voicemail system, but the SIM no longer registers in the USA on T-Mobile or AT&T.

Same here. I still get the VM when I call my yackie number. But can't register on any network. It sure seems like 09, which yackie uses, has hit a road block.

My 09 sim and old yackie sim does not register on any network in Greece. I used both cards untill the 22 of December and they worked. Now they do not seem to work at least here...

Is Yackie working anywhere?
 

Same problem in Melbourne. No service for well over a week.

Is anyone in the world still able to use their Yackie phone service?

I received my card a few weeks ago. I didn't get informed about a replacement SIM so I assume I got one of the new ones. At first it showed a good signal with "Yackie Telstra" as the carrier. I could dial out but my 354 number was unreachable from a telstra land line and from my skypeout. Skype says that the number is either invalid or does not exist.

I called the 24/7 support line and got a recorded message telling me to ring back during EST business hours. Email support suggested I should use the correct international dialing prefix. Which of course I was doing.

Then a few days later I simply had no service.