00 = commonly used international access prefix
+1= country code for North America (USA, Canada, etc.)
568 = area code, currently unassigned
Alternatively,
001 = less common international access prefix
+56 = country code for Chile
8 = first digit of a mobile number in Chile
or,
0015 = international access prefix for sending a fax via Telstra from Australia
+68 = first two digits of a country code in the Pacific
Because of the ambiguity of different access prefixes used in different parts of the world, it is best to quote an international telephone number without the access prefix, beginning with just the country code prefixed by a plus symbol.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
South Sudan is country code +211.(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
00 1 plus the area code and subscriber number. Toronto has 3 area codes, 416, 647, and 437, plus 3 more area codes for the suburbs (905, 289, and 365). You need to know the correct area code for the specific number you are calling.
+44 is the country code for the UK. Within the UK, 0151 is the area code for Liverpool. This number would not connect if dialled, as the first zero of a UK number is left out when dialling from abroad. In this case, the actual number is: +44 151 468 XXXX from overseas or 0151 468 XXXX dialling within the UK or 468 XXXX if dialling locally within the 0151 Liverpool area. (The plus signmeans "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
Santa Monica is in area code 310 and overlay area code 424.
King's Norton uses the Birmingham area code, 0121.
Pretty much any mobile phone service provider in the Toronto area will give you a number in area code 647, or the even newer overlay code, 437.
Wyoming (WY) uses area code 307.
Milton Keynes uses the area code 01908.
Godalming uses area code 01483. Dialled from overseas, this would be +44 1483
Several countries have a dialling code starting with 0021 - they are:Morocco (00212)Algeria (00213)Libya (00216)Tunisia (00218)Also - several countries have a dialling code starting with 0025 - they are:Rwanda (00250)Ethiopia (00251)Somalia (00252)Djibouti (00253)Kenya (00254)Tanzania (00255)Uganda (00256)Burundi (00257)Mozambique (00258)
New Rochelle, and all of Westchester County, uses area code +1 914.
It is international dialling code for Kyrgyzstan