Thank you for sharing. Added your data to wiki for you already.

Was at Long Beach enrollment center today for my interview (with appointment). Guy was very friendly and I asked both the officers present that if they accepted walk ins.

Their answer was "typically no". However it depends on the officer and if Officer Chris was around he will take walk ins (as if i knew who Chris was).

Also if its an emergency and if you were going to travel very soon, they might make an exception and take you in.

San Francisco Appointment - show up anytime on that day?
 

I have an appointment at 5pm. Do they care when I actually show up? Or could I show up at 10am for this appointment and be given higher priority over the other walkins? Or should I go at my prescribed time?

Thanks

As far as I have read here in this thread, they take walkins in order of sign up time. Only individuals with appointments showing up at exact time gets priority. They may give priority to individuals with appointments on the same day. Please let us know your experience.

CLT NO (1/12/18 1:30pm)
I have an appointment for the end of January, but had a significant delay so decided to try my luck with a walk in. Was very politely told no, it would not be possible today.

The wiki has been updated.

Global Entry Interview in San Francisco - ok to show up at different time on day of?
 

I read somewhere that SFO Global Entry interview is not time-specific - only date specific. So so long as you have an interview that day, you can just show up any time and get priority over everyone else. Is that still true? I have my interview at 5pm and wondering if I can show up in the morning instead. Thanks!

Global Entry at SFO and other locations are date and time specific. You may get priority over other walk-ins. Please come back and let us know your experience.

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LNB YES (1/2/18 1:30pm w/ spouse who had an appointment)

Went there with my wife who didn't have an appointment. They were hesitant at first but did let her interview. In and out very quickly.

Thank you. The wiki has been updated.

Went to Global Entry office at SFO on Feb 12. I had an appointment but wife and my brother tried walk-in. They took both of them in along with another person who tried a walk-in just before we reached there

2018/02/12 3:45PM Walk-in wait time was like 5 minutes.

Anyone know if they allow walk-ins in Denver? Mine isn't scheduled until July (requested back in January) but I've got a number of domestic flights before then. They sent me something that said I could walk-in if coming in from an international flight, but that doesn't apply.

Two FTers' experience are inconclusive. You can always try your luck and let us know.

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Walked into PHL last night at 7pm. Waited 5 minutes and they saw me. Didn't ask if I had an appointment or anything.

Thank you for sharing. Wiki has been updated for you.