Telephone Star Codes * Vertical Codes


 * http://www.jdbsound.com/work/starcodes.html

North America
The following are the vertical service codes generally recommended by the North American Numbering Plan Administration for use in the NANP territories. Not all of these services are available in all areas, and some are only available to landline or cellular telephones.

Local Area Signalling Services (LASS) and Custom Calling Feature Control Codes: