Portsmouth changed its area code from 01705 to 023 during the year 2000.
At the same time, the six-digit local numbers in use in Portsmouth were prefixed with '92' to make them eight digits long. For example, (01705) 822251 changed to (023) 9282 2251.
Southampton also uses the area code 023 and you can dial between the two cities without using the code. However, each city officially has its own block of numbers:
That's numbers from (023) 9000 0000 to 9989 9999.
That's numbers from (023) 8000 0000 to 8999 9999.
Yes a telephone directory is a telephone book. Which includes listings of all the numbers of people in a certain area. I myself would consider a telephone directory any list or book that includes a list of people and phone numbers that are in a certain area.
8,000,000 million telephone numbers are possible with these conditions, corresponding to the numbers 2,000,000 - 9,999,999. Many countries have forced dialing of the area code now, creating telephone numbers with a minimum of 10 digits. This means there are 8 million possible telephone numbers in each area code. (area code of 3 digits long).
The UK area code for Portsmouth, England, is 023.In 2000, Portsmouth changed from area code 01705 with 6-digit local numbers, to area code 023 with 8-digit local numbers. 01705 xxx xxx changed to 023 92xx xxxx. This change led some people to erroneously refer to the new code as 02392, but in fact the area code is 023.At the same time, Southampton numbers changed from 01703 xxxxxx to 023 80xx xxxx.In more recent times, Portsmouth has started using the 93xx xxxx number range and Southampton has started using the 81xx xxxx and 82xx xxxx number ranges.It remains true that all Portsmouth local numbers begin with 9. Local numbers in area code 023 beginning with 8 are in Southampton. Although Portsmouth and Southampton share an area code, calls between them are not considered to be 'local'.Calling internationally, both Portsmouth and Southampton are in area code +44 23, with 8-digit local numbers.(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, and some other countries use different prefixes.)
Portsmouth's area is 15.5 square miles (40.3 square kilometers).
In an area code split, or another situation in which all the numbers in a portion of a geographic territory are changed, the area code is changed automatically in the telephone switches and in mobile handsets. Other than that special case, it is not generally possible to change only the area code while retaining the same local number (for example, to change your number from 213-555-0123 to 619-555-0123).
France does not have telephone area codes. However, numbers starting with a 1 (or 01 domestically) are normally in Paris.
Telephone numbers in Turkey consist of the telephone country code +90, followed by a three-digit area code and a 7-digit subscriber number.
The telephone country code for Norway is +47. Norway does not have area codes, but telephone numbers in Svalbard and Jan Mayen begin with +47 79.
Nowhere ! UK numbers starting with 0161 are for the MANCHESTER area !
India's telephone area code 011 is New Delhi; however, there are no valid numbers beginning with 011 09.
In the UK, area code 023 is Portsmouth and Southampton, but there are no numbers beginning with 023 65. There are other countries with domestic numbers beginning with 02365, but you didn't provide enough information to answer your question.
Area code 855 in North America (USA, Canada, etc.) is toll-free numbers.