Mind-Blowing Facts
Why India's Biggest Cities Have the Shortest STD Codes
Indian landline number + STD code (minus the 0) always adds up to 10 digits
Bigger the city, shorter the STD code: Delhi 11, Mumbai 22, Kolkata 33, Chennai 44
The leading 0 isn't part of the code — it's a trunk prefix telling the network 'long distance'
Small towns get 3-4 digit codes and shorter local numbers because they have fewer lines
Dialling +91 from abroad means you drop the 0 entirely
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