Number::Phone::Country
  restrict 'US' to just US codes
  test +7
  test that all ITU assigned country codes work

Number::Phone::NANP superclass for all NANP countries
  number format is ((+)1) ABC DEF XXXX
  where A = 2 to 9
        B = 0 to 8
	D = 2 to 9
	AB != 37 or 96
	BC != 11
        X = 0 to 9
  see http://www.nanpa.com and http://www.cnac.ca
  see Message-ID: <008001c406ba$6bd01820$dad4a645@anhmca.adelphia.net>
      by Doug Ewell on Wed Mar 10 2004 in telnum-l
