India's telephone area code (or "STD Code") 01924, which is +91 1924 in international format, is Akhnoor, Jammu and Kashmir.
(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, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
India's telephone area code 011 is New Delhi; however, there are no valid numbers beginning with 011 09.
STD Code 0556 in Kushinagar District, Uttar Pradesh, India.
017724 is too long for telephone code in the UK, 01772 is the code for Preston, Lancashire.
You need to specify the country, because several countries use the term "STD Code" to refer to telephone area codes. See the related questions below.In the UK, 01924 (international: +44 1924) is the area code for Wakefield in Yorkshire.In India, 01924 (international: +91 1924) is the area code for Akhnoor, Jammu and Kashmir.(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, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
A telephone number in India beginning with 0814 is a mobile. 08142 and 08143 are in Andhra Pradesh.
A telephone number in India beginning with +91 9814 is a mobile, probably in or near Punjab.
Mumbai is in area code 022, or +91 22 from outside India.
There is no telephone area code 185 in Russia.
Telephone area code (STD code) 0161 is Ludhiana, Punjab. In international format, it becomes +91 161.(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, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
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.
The UK Dialling Code 0916 is reserved for premium rate operators. It is not a geographical area. US area code 916 (not 0916) is Sacramento, California. Other countries may have a domestic telephone area code 0916 or similar. Telephone country code +91 is India.
The telephone country code for Zimbabwe is +263. The area code for Beitbridge is 0286, or +263 286 in international format.