W dniu 25.05.2012 17:02, Andy Smith pisze:
www.nanpa.com (North American Number Plan Association). This is the "official" site for area code/exchange information in North America. www.localcallingguide.com also has information, but I'm not sure how "official" it is. Both sites have multiple ways of searching, i.e. per area code, by lata, by company, etc.
Thank you to all of you for help and fast response to my inquiry. -- Jarek Kasjaniuk PS. I know the site is in Polish... but may be this link will be useful to someone. http://www.uke.gov.pl/tablice/home.do?execution=e5s1 1. Stacjonarne publiczne sieci telefoniczne -> Fixed public telephone network 2. Ruchome (komórkowe) publiczne sieci telefoniczne -> Mobile (cellular) public telephone networks