O.K., so you know that the 25-pair color code base colors are blue, orange, green, brown, and slate (that's Bellspeak for gray). Abbreviated bl, or, gr, bn, sl.

One way to remember the colors and sequence is the nmenonic

Bell
Operators
Give
Better
Service

The band colors are white, red, black, yellow, violet (purple). I don't know any memory trick for these. Does anyone out there know one?

Cheers,

Cliff