TELECOM Digest OnLine - Sorted: Re: Remembering Old Zenith Numbers

Re: Remembering Old Zenith Numbers

Harry Dodsworth (af877@FreeNet.Carleton.CA)
Sat, 01 Apr 2006 16:43:15 +0000 (GMT)

The Air Canada timetable for 25 Oct., 1970 lists five digit Zenith
numbers for many localities in Ontario and Quebec.

In the United States, most Enterprise and Zenith numbers were four
digits; some of each were five digit and some Florida places had a
seven digit Enterprise number. A few places (N.J. and FL) used WX and
four digits.

Boise, Idaho was listed as EN 722, possibly a typo, the only three
digit number.

Mohawk Airlines (based in Utica, NY) had a similar mix of Enterprise
and Zenith numbers in the April 1969 timetable. Regular numbers were a
mixture of two letters + five digits, and seven digit numbers. Some
exchanges could not be made into words (Buffalo was NF 2-3000).

In the October 1970 timetable, all regular numbers were given as
7-digits; (Buffalo 632-3000). A number of upstate locations now used a
1-800 number. I think someone suggested 1-800 numbers came into use
about 1970.

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