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The new nation-wide telephone numbering plan

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1 Author(s)
Myers, O. ; Bell Telephone Laboratories, Inc., New York, N. Y.

The present nation-wtde telephone numbering plan, adopted in 1947, was expected to last beyond the year 2000, but now it appears that it will be outgrown by about 1975. The telephone industry in the United States and Canada has, therefore, adopted a new plan with several times the code capacity of the present one which should last well into the next century.

Published in:

American Institute of Electrical Engineers, Part I: Communication and Electronics, Transactions of the  (Volume:79 ,  Issue: 6 )