The 717 area code serves south central Pennsylvania (places like Lancaster, Harrisburg, York, etc.)
The 717 area code serves parts of sixteen counties in Pennsylvania:
Adams County
Berks County (portions of west)
Chester County (extreme western portion)
Cumberland County
Dauphin County
Franklin County
Fulton County (all except a portion of its NW)
Huntingdon County (Kishacoquillas Valley only)
Juniata County
Lancaster County (all except a portion of its extreme NE)
Lebanon County (all except a portion of its extreme SE)
Mifflin County (all except a portion of its extreme SW)
Perry County
Schuylkill County (Lykens Valley only)
Snyder County (portions of south)
York County
Telephone country code +7 is Russia and Kazakhstan, but there are no valid numbers beginning with +7 1.
The country code and area code of Atlatlahuca, Mexico is 52, (01)717.
The country code and area code of Yichang- HB, China is 86, (0)717.
The country code and area code of El Laaid, Sudan is 249, (0)717.
The country code and area code of Colonia Obligado, Paraguay is 595, (0)717.
Leichtenstein is telephone country code +423.
where is telephone country code 1816
That is not a country code.
There is no 909 country code.
There is no telephone country code +897, nor +89, nor any other country code beginning with +89. There are no valid telephone numbers beginning with +89.
Gibraltar is country code +350.
Moldova is country code +373.
Slovenia is country code +386.