Anyone old enough to remember 2-Letter 5-Num phone #s

BEachwood 4-5789

CAlumet 5-6969

MOhawk 4-3725

What I don't get is why we can't advertise using this system anymore? It doesn't restrict the number combinations. Actually if every phone had a letter separate from the
2= ABC , 3 = DEF system, you would be able to phone people with even fewer dialings than already

Old system was based on Central Office


Anyone old enough to remember 2-Letter 5-Num phone #s