This contains the current frequencies allocation. This is useful data to keep, or even print as it may help you in a case of emergency figure out who you can reach where.
We hope you never need it, but if you do please know that we are glad to provide you the link.
For a PDF version directly from NOAA see the following link.
http://www.ntia.doc.gov/files/ntia/publications/spectrum_wall_chart_aug2011.pdf