AskKaka lists the STD code of Chandigarh that is 0172. Chandigarh is a part of Punjab and the ISO code of Punjab state is PB.
Chandigarh STD code aka subscriber trunk dialing code is 0172 which is mentioned above on this page of AskKaka. We are great resource of finding Chandigarh std code of Punjab (PB).
Useful Info :-
Please take a note that if you are in India and dialing a landline number of Chandigarh then you will have to dial STD code 0172 as a prefix followed by the phone number of a landline user and if you are calling Chandigarh's phone number from a foreign country then you need to add +91 (the country code) followed by 172, e.g. +91172 (no need to add "0" as prefix) followed by the landline phone number.
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