I HAVE COUNTED ALMOST ANY LOCKSMITH NUMBERS IN THE YELLOW BOOK OF MANHATTAN AREA. AND IT CAME OUT TO BE CLOSE TO 9688 PHONE NUMBERS. I AM POZITIVE THAT THERE ISNT 10000 LOCKSMITH IN MANHHATN SO IT IS PROBABLY A FEW LOCKSMITH COMPANIES THAT OWN HUMDREDS OF NUMBERS ... BUT THE THING THAT I CANNOT GET AN ANSWER TO IS HOW DO THEY MANAGE TO HAVE A DIFERENT ADDRESS FOR EVERY PHONE NUMBER IN THE BOOK. PLEASE I AM INVASTIGATING THIS FOR MONTHS I REALY WANT TO KNOW. THANK YOU