I need to search various texts in Italian. These texts may be produced by any number of unknown different authors using slightly different conventions. I need to pull out as many of the telephone or fax numbers as possible with as low a rate of false positives as possible (I'd rather pick out 1 of 10 numbers accurately than get 11 out of 10 if you follow). The format of the numbers is variable. Unlike the north american (000) 000-0000 format, telephone and fax numbers in Italy can be anywhere from 3 to 15+ digits in length. Numbers can include .'s, spaces, /'s, -'s and ()'s and may be preceded by a space or a +

here are *some* examples of commonly used telephone number formats with their contexts:

poliambulatorio 050/701901
Tel. +39 0422 519111
Fax +39 0422 969501
Phone: +39.087105891
Fax: +39.0871562496
(+39) 06 6783933
(+39) 06 678793
Tel: 0668136061
Phone 39-0445-575870 Fax 39-0445-575399
P.I. 02212120246
Telefono 091.545606

these are the constraints that I have come up with so far, the problem is that it's a little too constraining and I'm not getting any results at all. 

m/
 (
  numer           
  (               
   i              
   (tel|utili|verdi|facsimili|fax)
  |o              
   (verde|tel|facsimile|fax|tel)
  )
 |t:              
 |f:       
 |fax
 |al\snumero       
 |phone
 |p.i.
 )                 
  [^\d]{,7}        
                  
  (\d\s*){3,15}   
  ([^\d]|$)       
 /gx

[download]
Thanks for your help. Thanks especially to LAI for helping me make this question a tad less silly.

'share and enjoy'

In reply to regexp quandry by Ella

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