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Date:   Thu, 28 May 2020 12:48:26 -0400
From:   "Bruno Dantas" <wireless@dantas.airpost.net>
To:     "Johannes Berg" <johannes@sipsolutions.net>,
        linux-wireless@vger.kernel.org
Subject: Re: iwlist scanning: how to exclude old scan results from output?
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> You should use 'iw' instead of 'iwlist', which does have options for
> flushing the cache.

Thank you, Johannes.

I tried  iw  but it has the same issue (the "AndroidAP-bd" SSID is non-existent because my phone is physically turned off, but it shows up in the output):

$ sudo iw dev wlan0 scan flush
...
	TSF: 42037885 usec (0d, 00:00:42)
	freq: 2412
	beacon interval: 100 TUs
	capability: ESS Privacy ShortSlotTime (0x0411)
	signal: -31.00 dBm
	last seen: 11447 ms ago
	Information elements from Probe Response frame:
	SSID: AndroidAP-bd
	Supported rates: 1.0* 2.0* 5.5* 11.0* 18.0 24.0 36.0 54.0 
	DS Parameter set: channel 1
	ERP: <no flags>
	Extended supported rates: 6.0 9.0 12.0 48.0 
	RSN:	 * Version: 1
...

Am I not issuing the appropriate  iw  command?