pattern for splitting address

[Toldino_at_gmail_dot_com]

Hi, i'm desperatly searching a regex pattern for split a list of
people address like this

ADDRESS
via a. pecoraro n. 4
p.zza sola, 14
via scardinata 117
via della scuola n.113
via n.ippolito, n.154/bis

in

ADDRESS: via a. pecoraro
N.RO: 113
ADDRESS: p.zza sola
N.RO: 14
ADDRESS: via scardinata
N.RO: 117
ADDRESS: via della scuola
N.RO: 113
ADDRESS: via n.ippolito
N.RO: 154/bis

The sample text i've pasted contains all combinations of
address-separator-civic number.

I've try with this pattern

(?<addr>.*)
(?<sep>,\s*(n.) ?)
(?<civ>.*)

but it doesn't work with al address and, sometimes, the splitted words
are wrong.

Who can help me? ;-)

TIA,
Simone.