RADIO REPORTING (CALLING-IN) POINTS Traffic Control Centres and Maritime Information System (SICOSENARU). The River Uruguay comprises six zones run from different Control Centres from the Argentinian and Uruguayan Coast Guards in alternating semi-annual shifts. All vessels are required to report to the appropriate Centre when passing designated Reporting Points and on entering/leaving a sector. See Published Maritime Information (IMP Uruguay), Uruguayan Coast Guard, chapter VI, section 2-4 for further details. 
This cell is included in Zone YANKEE and  X-RAY.

ZONA YANKEE: Km 33-153
1er Turno (Ene 1 - Jun 30): FRAY BENTOS PREFECTURA RADIO (CWC 25)
2do Turno (Jul 1 - Dic 31): GUALEGUAYCHÚ PREFECTURA NAVAL RADIO (L8O)

ZONA X-RAY : Km 153 - 270
1er Turno (Ene 1 - Jun 30): COLON PREFECTURA NAVAL RADIO (L8Y)
2do Turno (Jul 1 - Dic 31): PAYSANDU PREFECTURA  RADIO (CWC32)