See the related link for a list of area codes in North America (USA, Canada, etc.).(see related links)
There is a list of area codes for the US and Canada on LincMad.com; see the related link.
You can get a state-by-state listing of telephone area codes in India at the link below.
(See the related links)
Wikipedia has a listing of all area codes. You can find a link to the US list below. Which country did you want? Link to the UK list added.
No but below is a link to the Wikipedia list :-)
www.wtng.info is the most comprehensive resource for this.
There is no area code '012', but there are lots of area codes that start with 012 - such as 0121, 01242, 01223, etc...You can probably work out which area it is by looking at the full list of area codes at www.area-codes.org.uk
There are several dozen area codes beginning with '9' in North America. See the list in the related links. It happens that, except for area codes 902 and 905 in Canada, all North American area codes beginning with '9' are in the United States. (as of 2012-05-29)
French area codes are one digit. Within France, you prefix the area code with the trunk prefix 0.1 = Paris2 = northwest3 = northeast4 = southeast5 = southwest
You have to know what area in the Philippines you want to write to, the best I can do for you is provide the site that gives you all the zip codes for the area your looking for, search the site and find the exact area.Philippines ZIP Codes Directory Complete list of All Postal ZIP codes in the Philippines and Telephone Area Codes list with a detailed Philippine map.http://zip-codes.philsite.net/
In North America (USA, Canada, etc.), area codes are randomly distributed; in fact, in most cases the people who assign area code numbers deliberately avoid placing similar codes near one another. Thus, area code 757 is in Virginia, but area code 758 is the Caribbean island nation of St. Lucia. See the related link for a list of North American area codes beginning with 7.