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Phone numbers #phone-number
49 clues · 46 countries.
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49 clues · 46 countries.
Showing 49 clues across 46 countries.
Australian phone numbers are 8 digits with a 2-digit area code in front. A map of these by state can be seen here. Keep in mind, not all phone numbers will include an area code in front of it.
Phone codes in Belgium are very useful to determine the region you are in. They are 9 digits long. The 1 or 2 number(s) after the leading 0 indicate the area code.
0X XXX XX XX (Brussels, Antwerp, Liege, Ghent.)
0XX XX XX XX (Other cities.)
NOTE: Mobile numbers start with 04 and are 10 digits long.
You can click on the image to enlarge it.
Area codes are common to see in Brazil. They are often notated using parentheses, or at minimum as two separate numbers. Phone numbers are sometimes without area codes, and without them will be 8 numbers long for landline and 9 for mobile.
The pattern for each of the states is very learnable and useful. The area codes are grouped by first digit, so even just learning those can already help a lot. Notably, area codes ending in 1 will always be around major cities and state capitals.
Phone numbers can sometimes be seen underneath kilometre markers in São Paulo.
Area codes in Bulgaria are one of the best clues to regionguess urban rounds. Conveniently, they are ordered by first digit, so just learning the first digit can yield high results with little effort.
Numbers between parentheses in the map are area codes from a neighbouring province that frequently spill into that one.
Codes next to a small dot represent area codes unique to the province capital.
Canadian phone numbers start with a three-digit area code. Both landlines and mobile phones use the same area codes.
NOTE: Canadian phone numbers are formatted XXX XXX XXXX, with the area code being the first three digits. It is fairly common to see 7-digit numbers with the area code omitted.
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Chilean phone codes will sometimes have a two digit area code in front, followed by seven digits. The patterns of the codes are easily memorable. Most of the central states also have different area codes for specific provinces, which can help you make accurate guesses.
Area codes are moderately useful to learn for Costa Rica.
Croatian landlines typically start with a zero followed by the area code.
Each of the 5 provinces uses a two-digit area code, starting with a 2.
Czech phone numbers are typically made up of 9 digits, of which the first 1-3 digits are the area code. Note that if the first digit is 6 or higher, it does not indicate a specific area. They’re not very common.
NOTE: Slovak phone numbers typically begin with a 0.
French telephone numbers are 10 digits long, with the first two pairs of digits being two separate area codes, following two patterns:
01 is in Île-de-France and 02-05 goes clockwise from the northwest.
2X is in the far north, with the numbers generally increasing anticlockwise. 9X is an exception, being found both in the far northwest and far southeast.
Secondary area codes in Île-de-France can be seen on this map.
NOTE: Phone numbers beginning with 06-09 are not regional.
German area codes are grouped by their first digit. You can practise them by playing this map.
Greek area codes will always begin with a 2, followed by 1-3 digits determining the area.
NOTE: If the third digit is 1, you will be in the largest city of the region, and if the third digit is 9, you will be in the area surrounding that city.
Phone numbers starting with a 2 are unique to Guatemala City.
Similarly, phone numbers starting with a 6 are unique to the Guatemala Department.
NOTE: Phone numbers starting with 7 are found anywhere except for Guatemala Department, and phones starting with 3, 4 or 5 can be found anywhere in the country.
Hungarian phone numbers consist of either 8 or 10 digits. If the number has 8 digits, the first and second digit is the area code. And if the number has 10 digits, the third and fourth digit is the area code. The only exception is Budapest, where only the first or third digit, being a 1, respectively is the area code.
NOTE: Area codes whose second digit is 0 or 1 are not region specific.
While kabupaten names appear significantly more often, a number of signs also display the postal code. Postal codes are five digits long and grouped by their starting digit, ranging from 1xxxx in Jakarta to 9xxxx in Maluku and Papua.
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Irish phone numbers start with a two digit area code. The area codes are grouped geographically by first digit, and are therefore very learnable.
Here is a map of area codes in Israel and the West Bank. Note that only the phone codes featured on the map are regional.
Italian area codes follow a pattern where the first digit generally increases to the east, then south.
Area codes are commonly found throughout the country and increase to the south.
NOTE: Area codes ending with a 0 are often not regional, most notably 0120.
Kazakh area codes are useful to learn, and they generally follow an east to west pattern along three horizontal lines.
Malaysian postal codes are useful to know, since they can be found on most street signs in the country.
The first digit of Mexican area codes are regional and can be seen on this map.
Namibian area codes are a simple way to get the right region or city on urban rounds.
Dutch landline phone numbers start with a three- or four-digit area code. These are geographically grouped, except for the ones that start with 07, and two of the 02 codes.
NOTE: Dutch mobile phone numbers start with 06, which is a code that is not used for any of the landline area codes.
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New Zealand phone numbers are seven digits with a two-digit area code in front of it. Numbers starting with 02 are mobile numbers.
The first digit of phone numbers can be used to regionguess Panama.
The numbers with a smaller font indicate potentially useful regional two-digit codes.
NOTE: Only phone numbers with 7 digits are helpful, and any numbers starting with 5, 6, or 8 are useless as well.
Landlines will start with a 0 followed by the area code. Mobile phone numbers start with 09.
Polish landline phone numbers have 9 digits. The first 2 digits are the area code. These area codes are distributed in a sensible manner across the country. Even just learning the first digit of the area codes can greatly narrow down the region. You can click on the infographic to enlarge it.
NOTE: Mobile numbers also have 9 digits, but luckily there is no overlap between the first two digits of mobile numbers and landlines.
The first three digits of Portuguese landlines make up the area codes, which are distributed as seen on the map. Phone codes not starting with a 2 are not regional, and codes starting with 29 will either be the Azores or Madeira.
For a complete list of the third digits, see this page.
The entirety of Puerto Rico uses (787) as their regional phone code. This number can be seen in front of phone numbers using this format:
(787) XXX-XXXX
NOTE: While far less common, you may also encounter the phone code 939.
This is a map of Russian area codes. Notably, area codes starting with 8 are in the west, codes starting with 3 are fairly central and codes starting with 4 are either east or around Moscow.
Serbia uses 2 digit area codes, with the first digit between 1 and 3. Area codes starting with 2 are found in the north, area codes starting with 1 are found in central and eastern Serbia. Area codes starting with 3 are found in the south-west.
Slovak phone numbers typically consist of 10 digits, of which the first 2-3 digits are the area code.
NOTE: Czech phone numbers generally do not begin with a 0.
Telephone numbers are 10 digits long. The first three digits of landline numbers are the area code. The first digit is always a zero; the second and third digits give you the area. The area codes are geographically grouped, so even learning just the first digit is useful.
NOTE: Mobile phone numbers start with 06–08. These numbers are not specific to an area.
You can click on the image to enlarge it.
Image provided by dbldk.
Area codes in South Korea increase to the south, from 02 in the north, to 064 on Jeju. It is also notable that Seoul has the only two-digit area code in the country.
Area codes in Spain are very useful, as you only need two digits to get a very accurate guess. Every landline number starts with “9”, followed by the regional numbers.
Mobile numbers start with “6”, and are not relevant in region guessing.
Sri Lankan telephone numbers have 10 digits.
The first three digits of landline phone numbers are the area code. The first digit of that area code is always a 0, while the remaining two digits are shown on the map.
Mobile phone numbers always start with 07 and are not associated with any particular region.
You can click on the image to enlarge it. Image credit: Maccem.
The first 3-4 (2 in Stockholm) digits of landline phone numbers in Sweden are the area code. The map shows the first two digits in every region. Within the regions, the third and fourth digit of area codes typically increase to the northeast.
NOTE: Mobile phone numbers always begin with 07.
You can click on the image to enlarge it.
These small yellow signs advertising tree felling are commonly found on utility poles and lamp posts in the suburbs of Stockholm. While the phone code for Stockholm is usually written on the signs, it is often difficult to make out from a distance.
Taiwan telephone numbers are 10 digits, with the first two digits indicating the area code. Area codes range from 02 to 08, increasing as you go south.
This image was provided by DrizzleMayFiddle.
NOTE: Oftentimes the area code will be written within parentheses. Mobile numbers start with 09.
Thai landline phone numbers have 9 digits. The first digits of phone numbers are the area code. The Bangkok area code is 02, the other area codes have three digits. The area codes are grouped, so even just learning the first digit is useful.
NOTE: Mobile phone numbers start with 08 or 09 and have 10 digits. None of these numbers overlap with the area codes. Numbers starting with 06 are also not regional.
Turkish area codes follow a fairly easy to learn pattern and can be very useful to get the general region. Most notably, the first digit of area codes are ordered from 2 in the west to 4 in the east.
NOTE: Phone codes starting with 5 are not regional.
Ukrainian landline phone numbers start with a two-digit area code. Each oblast has its own area code. If the third digit is a 2, it refers to a phone number in the oblast’s capital (typically the biggest city).
Mobile phone numbers start with 50, 63, 66-68, 73 or 91-99. They are not unique to a geographic area.
Landline phone numbers in the UK always have nine or ten digits after the 0 trunk code. The first two to four digits after the 0 are the area code. Unfortunately for Geoguessr players, there is not much rhyme or reason to their geographic ordering.
However, the area codes of some large cities are still worth memorising. The most important ones are summarised in this infographic. Notably, all of Northern Ireland uses the phone code 028, and all of London uses 020.
A complete overview of all other area codes is available in this infographic.
US telephone numbers start with a three-digit area code. While these area codes are not clustered by initial digits, they are useful to learn.
You can click on the image to enlarge it.
Area codes in Vietnam always start with a 2, followed by one or two more digits, which are generally ordered from north to south.