Yes. Even 450MHz ish is possible for Analogue Mobile. Since GSM 900MHz (872 to 960 band) was allocated and ran in parallel for a while with Analogue Mobile, Analogue Mobile surely must have been elsewhere. It seems large for 900MHz band anyway, but not impossible. The UK ETACS (Vodafone anyway) seems to have used most of the GSM band, so ETACS and GSM must have interleaved channels. http://en.wikipedia.org/wiki/ETACS
But I'm pretty sure Wikipedia is lacking info / inaccurate on UK Analogue Mobile.
GSM uses 200KHz Duplex channels and TDMA (time slots for each connection/call) with GMSK modulation for voice (max 14.4kbps data). For later "EDGE" high speed data multiple time slots (245kbps = 0.245Mbps), variable QAM and last EDGE development was multiple channels (up to 2.4Mbps, not implemented in UK/Ireland)
NMT analogue Mobile was on 450MHz, very good Rural coverage. (Nordic Mobile Telecom?) http://en.wikipedia.org/wiki/NMT_450
C-Netz 450MHz Analogue Mobile in Germanyhttp://en.wikipedia.org/wiki/C-Netz
If it was 450MHz, it will likely work for 430MHz to 440MHz Amateur usage. Tetra on 450MHz band is recent and replaces earlier Analogue allocations.