[comp.dcom.telecom] NPA, etc...

morris@jade.jpl.nasa.gov (Mike Morris) (05/30/89)

Recently there has been a discussion of the n10 area code and the fact that
it is in use in Canada for TWX machines, but not used in the US.  Well,
I decided to try dialing it and see what happened.  I got the local ANI!
It seems that both 1223 and 1610 goes to the same set of ANI trunks.

as Spock would say, "Interesting..."

US Snail:  Mike Morris                    UUCP: Morris@Jade.JPL.NASA.gov
           P.O. Box 1130                  Also: WA6ILQ
           Arcadia, Ca. 91006-1130
#Include disclaimer.standard     | The opinions above probably do not even

rdsnyder%mit-amt.media.mit.edu@eecs.nwu.edu (Ross D. Snyder) (05/31/89)

In article <telecom-v09i0179m05@vector.dallas.tx.us>, morris@jade.jpl.nasa.
gov (Mike Morris) writes:

> It seems that both 1223 and 1610 goes to the same set of ANI trunks.

One thing worth noting when you find two ANI numbers for the same CO is that
one of the numbers may provide the ANI recitation of calling number to the
calling line only, while the other may announce the number on a loudspeaker
in the CO.  This was the case when I had a chance to tour the Northwestern
Bell SxS CO in my hometown in southern MN about four years ago, before it
was cut over to a 5ESS.  With this setup, the men on the frame could dial
ANI and not have to put the buttinski up against their ear.  I assume there
were other uses too.  This may account for people's complaints about the
telco changing the ANI number shortly after they learn the number; CO
personnel simply get tired of ANI yanking away randomly.
-Ross