FM PI Code Allocations

Full-service FM station PI codes (call-signs with 4 characters, e.g. KAAA, WZZZ etc.), click here.

FM Translator PI codes (call-signs with 6 characters, e.g. K250AA, W300ZZ etc.), click here.

PI Code Information and Guidelines

• Every FM station (full-service and translator) should transmit a Program Identification (PI) code as part of their Radio Data System (RDS) transmission
• This web site is a "one-stop shop" for PI codes for all stations
• FM translators re-broadcasting an AM station or an HD Radio multicast channel should ALWAYS use the PI code for the translator given on this web site
• In some circumstances it may be desirable for an FM translator to use a different PI code than the one given on this web site:
  • An FM translator should use the same PI code as an associated full-service station if that translator is SIMULCASTING the main channel audio of the full-service station
  • If a group of FM translators are broadcasting the same audio program, then all of the translators in that group should use the same PI code (for example, choose the PI code for one of the translators in the group and use that PI code for the entire group)
• Please refer to the NRSC-G300-C guidelines before making a decision on the best approach for your transmitter(s) PI codes.
• If you use a different PI code to that given on this website, please use the "Report Change" link next to the call-sign to report the PI code that you are using. This helps us keep the database accurate, and allow for unused PI codes to be recycled more efficiently
• If a translator moves then the translator owner needs to check for a new PI code.