 How to call:
011 - Exit code when making an international call from Guam
44 - UK country code for inbound calls
1529 - Sleaford city code
011 + 44 + 1529 + Local Number - International dialing code format
 World Times:
The time in Guam is now 02:01:42 AM (02:01:42 AM)
The time in Sleaford United Kingdom is now 16:01:42 PM (04:01:42 PM)
 Mobile codes:
To call a mobile phone in United Kingdom from Guam use the following dialing code format: 011 + 44 + Mobile Code* + The Number
*United Kingdom has multiple mobile carriers: 74## (Mostly mobile broadband), 75##, 7624 (Isle of Man), 77##, 78##, 79##
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