On Mon, 1 Jun 2015 07:48:50 -0400, "Robert Green"
wrote:


Probably ran out of 2 letter combos that made sense as part of a larger
word. "KK"

KLondike.

or "WX" would be hard to assign.

WYoming.

In addition, 3 letters map
into 1 number, adding to the limitation on assignable prefixes like
"Butterfield"

In Chicago, my exchange one year was BUtterfield 8. I never read the
book of the same name however.

or "Teasdale". A while back all area codes had a 0 in the
second slot and all toll-free numbers began with 800. Not anymore. You
also used to be able to connect just dialing the number without any area
code - which was assumed.

http://en.wikipedia.org/wiki/North_A...ze_expansio n

Lays out what happens if we run out of telephone numbers in the XXX-XXX-XXXX
format. Before anyone has a canary, there are still places that do things
the old way and you can dial a neighbor with only 7 digits.

Some politicians complained, and maybe forced the Public Service
Commission some places to not change or to change back. Conceivably,
some places people succeeded driectly without needing a politician.

--
Bobby G.