Area codes in Lebanon, Pennsylvania
Lebanon, Pennsylvania uses 2 area codes — 717 and 223. The main Lebanon area code is 717.
Area codes serving Lebanon
Phone numbers in Lebanon are written as ten digits — for example (717) 555-0190 — and fall in the Eastern Time zone.
How Lebanon came to have 2 area codes
The original Lebanon area code is 717, in service since 1947. As the area ran low on available numbers, an overlay code was added over the same region for new phone lines: 223 (2017). Existing numbers kept their original code — an overlay never forces anyone to change their number — which is why Lebanon now uses all 2 codes and every local call is dialed with ten digits.
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Nearby cities
- Harrisburg area codes
- York area codes
- West Chester area codes
- Allentown area codes
- Easton area codes
- Philadelphia area codes
- Wilkes-Barre area codes
- Camden area codes
More cities in Pennsylvania
Frequently asked questions
What is the area code for Lebanon?
The main area code for Lebanon, Pennsylvania is 717. Lebanon is now served by 2 area codes in total: 717, 223.
How many area codes does Lebanon have?
Lebanon has 2 area codes: 717, 223.
Why does Lebanon have more than one area code?
As Lebanon used up the numbers available in its original area code (717, in service since 1947), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.
How do you dial a Lebanon number?
Dial all 10 digits — the area code (717 or 223) 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.