ZTE-Z431/1.4.0 NetFront/4.2 QTV5.1 User-Agent

Profile/MIDP-2.1 Configuration/CLDC-1.1

[not2easy]

Found this mucking around, it is one I haven't seen before and can't find any info here for the UA:
166.216.130.186 - - [21/Jan/2013:17:26:57 -0600] "GET /products/ HTTP/1.1" 200 27445 "http://www.example.com/?s=blue%20widget"
"ZTE-Z431/1.4.0 NetFront/4.2 QTV5.1 Profile/MIDP-2.1 Configuration/CLDC-1.1"

The search almost makes it look human, but the files requested had nothing to do with the query and the refering directory only URL does not exist.
32 files in under 2 minutes. ARIN gives me:
166.128.0.0 - 166.255.255.255
166.128.0.0/9
Service Provider Corporation

That range seems very broad to me. (?)

[wilderness]

I've a similar one from 2008 that arrived via a valid search:

"SAMSUNG-SGH-A737/UCGI3 SHP/VPP/R5 NetFront/3.4 SMM-MMS/1.2.0 profile/MIDP-2.0 configuration/CLDC-1.1 UP.Link/6.3.1.17.0"

Service Provider Corporation covers a very broad spectrum of services.

[lucy24]

That's odd. I looked up that range just the other day for some reason that now escapes me. I'd got them labeled as Cingular Mobile, with assorted sublets. This is probably backward, though.

Incidentally, I know we are Not Supposed To Do This, but if you google "Wireless Data Service Provider Corporation" the SERP text in the first hit --first for me anyway-- is pretty hilarious. I believe the operative word is "cloaking" :)

[Samizdata]

Netfront is a mobile browser that was used on some phones and game consoles.

I believe it still exists, though usage (never high) is now dwarfed by iPhone and Android defaults.

Whether your example was genuine is another matter entirely.

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