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Adif is the state-owned company managing most of the train network through Spain.

Adif uses train-tierra through most of Iberian and mixed gauge network, with trains run mainly (but not exclusively) by Renfe. Standard gauge lines use GSM-R generally.


This list has been compiled by collating several information sources 1 2.

Aside from a number, Adif also assigns a color to each channel in mode A, which is used to paint the roof of the repeater stations of each channel 3.

Channel 1

Channel 2

Channel 3

Channel 4

Channel 5

Channel 6

Channel 7

Channel 8

Channel 61

Channel 62

Channel 64

Channel 65

Channel 66

Channel 69

Channel 99

  1. Cuadro Nacional de Atribución de Frecuencias, Notas UN, 2017 edition, UN-78. 

  2. El sistema Tren-Tierra en España, Asociación Ferroviaria de Godella, 2013. 

  3. ET 03.366.101.8 1st edition, page 9.