Interesting. That seems to be a gigantic hole in this entire process. I do have my iPhone set to WiFi Calling as AT&T’s signal has trouble reaching inside our building very well.
FEMA also notes:
A dedicated mailbox has been created for all questions relating to the IPAWS National Test. Please e-mail us at FEMA-National-Test@fema.dhs.gov.
I e-mailed them with my results as well. Might be worth considering sending a report to that address yourself if you didn’t receive it. If our friend Kim lobs a rocket this way for some reason, I’d kinda like to know about it before the sky turns orange. 
Awesome, I'm looking forward to hearing about all the locations a
nationwide test was and was not received in.
Andy,
Received on iPhone 7/iOS 12 on Sprint in SE Michigan.
Weirdly, I received 3. One of them is both French/English.
More weirdly i am in the air, on the way from Nanog Vancouver to Denver. We were still in Canada airspace, and my AT&T phone showed clearly “no service”. The phone was NOT on wi-fi.
Screen captures if anyone wants.
Iphone, vzw, silicon valley, rcvd.
Interesting question though… I wonder if people on micro-cells and/or wifi calling don’t get the alerts. That would be extremely dumb and irresponsible of the cell phone carriers, so its likely the case
In rural America where cell coverage may not exist but the customer may have PTMP wireless internet and is using a microcell and/or wifi calling over the internet, if they dont get the alert, that could be catastrophic. Something along the lines of the Santa Rosa, CA fires catastrophic.
I wonder if that is the case.
-Mike
I did receive the alert on samsung devices: note 8 (tmobile), note 3 (no sim card/no service), and galaxy s6 (verizon)
~12:18 MDT (GMT-6)
I work underground so I’m in airplane mode with WiFi calling enabled. Nothing on Verizon Android.
I received it on my iPhone XS Max running iOS 12.0 with AT&T, wifi calling off...
Can we stop spamming this list?
I don’t care if you received the alert or not. Contact the FCC or the whitehouse.
Got it on both AT&T and Verizon iPhones in New England.
Sincerely,
Paul
AT&T Android in Virginia. I received it.
The Washington Post is reporting that, "A number of iPhone users on
AT&T’s network did not receive the notification until they had
rebooted their smartphones."
Regards,
Bill Herrin
Very possible, I have two phones on a AT&T micro-cells and both missed it.
-Nathan
Received on Android on Sprint here in Colorado
Geoff Mulligan
CTO IIoT @ Jabil
Anecdotally, we had staff feeding off of both AT&T and VZW IP-based
metrocells get the alert message.
Ray
Alert received on Sprint in the Indianapolis area. I was on a phone call at the time [note that my handset doesn't do VoLTE - not sure if any Sprint handsets will at this time], and the alert was deferred until the call was terminated at approximately 14:30 EDT but was displayed immediately once that happened.
I got it on ATT IPhone I have and a Verizon Pixel as well.
My son who has a Canadian line got it while in the Washington state area.
Adrian
I got it, but not until 14.34. For a system that's supposed to be able
to warn people of incoming nuclear attack, that seems unacceptably
slow.
Ar Mer, 3 Hyd 2018 am 14:52 Andy Ringsmuth <andy@andyring.com> ysgrifennodd:
Received at roughly 12:15 Pacific time, AT&T / IOS / Berkeley CA.
-Bill