You need to specify the country; see the Related Questions below for examples.
In the UK, there are many area codes starting with 0173:
There are several codes beginning with 0173, including 01731 Barara, 01732 Bhamboli, and 01734749 Badholi.
In India, each city and state is assigned a Subscribing Trunk Dalling (STD) code. Once the city and state is provided, a STD code can be matched for that location.
That depends on which country you're talking about.
In the UK, 0140 is an incomplete STD code (telephone area code); you need one more digit. In India, 0140 is an invalid STD code.
You need to specify the country; see the Related Questions below for examples.
STD code for France is 0033
I'm guessing that you mean STD = Subscriber Trunk Dialling (telephone area code) rather than STD = Sexually Transmitted Disease. STD code is another term used in some country for telephone area codes. The purpose of a telephone area code is to group telephone numbers by geographic area. In many cases, at least some calls to numbers with the same STD code as the caller can be dialed without the STD code, allowing shorter dialing sequences for many local calls.
01409 area code Holsworthy
The std code starts with 022
01224246
01234245
THE STD CODE OF KULTI IS 0341.