Area codes in Hammond, Indiana

Hammond, Indiana uses area code 219. The main Hammond area code is 219.

Area codes serving Hammond

Phone numbers in Hammond are written as ten digits — for example (219) 555-0190 — and fall in the Central Time zone.

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Nearby cities

More cities in Indiana

Frequently asked questions

What is the area code for Hammond?

The main area code for Hammond, Indiana is 219.

How many area codes does Hammond have?

Hammond has 1 area code: 219.

How do you dial a Hammond number?

Dial all 10 digits — the area code (219) followed by the 7-digit local number. From abroad, dial +1, then the area code and number.

Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.