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postnummer (8 elementer):
EC4 (6)
EC4A (1)
EC4M (1)
EC4N (1)
EC4P (1)
EC4R (1)
EC4V (1)
EC4Y (1)
Gjennomsnittlig GPS-koordinater for postnummer ec4: 51.513, -0.123

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Notering byer:
>> Cannon Street EC4, City of London, England, GPS-koordinater: 51.5125,-0.1225
>> Blackfriars EC4, City of London, England, GPS-koordinater: 51.5125,-0.1225
>> Ludgate Hill EC4, City of London, England, GPS-koordinater: 51.5125,-0.1225
>> St Paul's EC4, City of London, England, GPS-koordinater: 51.5125,-0.1225
>> Fleet Street EC4, City of London, England, GPS-koordinater: 51.5125,-0.1225
>> Mansion House EC4, City of London, England, GPS-koordinater: 51.5125,-0.1225