Maritime mobile service

A maritime mobile service (also MMS or maritime mobile radiocommunication service) is a mobile service between coast stations and ship stations, or between ship stations, or between associated on-board communication stations. The service may also be used by survival craft stations and emergency position-indicating radiobeacon stations.

Classification
This radiocommunication service is classified in accordance with ITU Radio Regulations (article 1) as follows:
 * Maritime mobile service
 * Maritime mobile-satellite service (article 1.29)
 * Port operations service (article 1.30)
 * Ship movement service (article 1.31)

Frequency allocation
The allocation of radio frequencies is provided according to Article 5 of the ITU Radio Regulations (edition 2012).

In order to improve harmonisation in spectrum utilisation, the majority of service-allocations stipulated in this document were incorporated in national Tables of Frequency Allocations and Utilisations which is with-in the responsibility of the appropriate national administration. The allocation might be primary, secondary, exclusive, and shared. However, military usage, in bands where there is civil usage, will be in accordance with the ITU Radio Regulations. In NATO countries military utilizations will be in accordance with the NATO Joint Civil/Military Frequency Agreement (NJFA).
 * primary allocation: is indicated by writing in capital letters (see example below)
 * secondary allocation: is indicated by small letters
 * exclusive or shared utilization: is within the responsibility of administrations

Frequency range 415... 495  kHz 505...526,5 kHz 1606,5...1625 kHz 1635...1800  kHz 2045...2160  kHz 2170...2173,5 kHz 2190,5...2194 kHz 2625...2650  kHz 4000...4438  kHz 6200...6525  kHz 8100...8815  kHz 12230...13200 kHz 16360...17410 kHz 18780...18900 kHz 19680...19800 kHz 22000...22855 kHz 25070...25210 kHz 26100...26175 kHz