(See the related links)
USPS.com
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.
online
You can get a state-by-state listing of telephone area codes in India at the link below.
I would search for local area codes either by list or a map. You can check the list for your city or town by name and see what your area code is, or locate it on the map and they usually post all the area code for each part of the county if there are multiple numbers.
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
Zoning codes vary by jurisdiction, so there isn't a universal list applicable everywhere. Each city or county typically has its own zoning ordinances that classify land uses, such as residential, commercial, industrial, and agricultural. To get a comprehensive list of zoning codes for a specific area, you would need to consult the local planning or zoning department's website or contact them directly. Many municipalities provide this information online in their zoning maps or municipal codes.
Well, membership codes are the codes on membership cards (purchased at retail stores) and any one who gives you one online, are just wasting your time.