Contents of the DC90.DOC file
Scott R. Houck
This is an update to the earlier D.C. Telephone Exchanges programs
that I wrote in 1986 and 1988. There were a lot of changes, of course,
but I also wanted to update it because of the upcoming requirement to
dial the area code when calling out of state. My BBS dialing directory
and address book are going to require some major editing!
Thanks go to David Hogben for collating the latest information
in a dBASE file. I ran the data through an AWK program to facilitate
incorporating it into the assembly language code. Why assembly language?
Well, back in 1986, it was one of first assembly language programs I had
written and I needed some practice. It also has the nice feature of being
tiny, and my hard disk is always running out of space! The strings for the
locations are stored only once, and the rest of the information is stored
in a table.
To run the program, type in DC nnn, where nnn is a 3-digit exchange in
the range 204-998. The location is printed, along with the area code.
For certain exchanges, other information may print. This includes whether
the exchange is outside the Washington Metropolitan Exchange Area, whether
special charges apply to mobile telephones, and if the exchange is served
by Continental Telephone Company. Also, a few exchanges (like 844 for
the TIME of Day Service) are local for all areas.
This program is donated to the Public Domain. If you want to make
any comments or corrections, I can be reached at the following address.
Scott R. Houck
1880 Riggs Pl., NW
Washington, DC 20009