INTERNATIONAL CALLING CODES
Guam city and number prefixes
Search documented cities, regions and telephone prefixes. These are numbering references, not numbers available to buy.
All international calling codesGuamCountry calling code: +1
1 of 1 documented prefixes
- TamuningCity / region number prefixesNumber prefix671646International: +1671646
Area codes identify dialing regions. More detailed number prefixes identify allocated ranges and may include subscriber digits. City coverage varies by country; a prefix does not establish a subscriber’s current location or available numbers.