1040 THE BELL SYSTEM TECHNICAL JOURNAL, SEPTEMBER, 1953 



Ift . 604 



06CEMKR 19S2 



OKLAHOMA AND ONTARIO ARE TO BE DIVIDED INTO 



TWO AND THREE NUMBERING PLAN AREAS RESPECTIVELY. 



THE NEW AREA CODE NUMBERS HAVE NOT BEEN ASSIGNED 



Fig. 1 — Nationwide toll dialing 



