where I live half of the Judicial district is on one area code and the other half is in another. Depending on where the caller is, I have to either dial the area code plus number, or 1 plus area code and number or just the number itself. And if I call from the COurthouse I have to remember whether to first dial an 8 or a 9 and then dial with or without the 1, and then with or without the area code.
Unless I call baton orouge which has a totally different area code, or New Orleans which has yet another area code. Shreveport has yet another area code-but that's OK as I don't call Shreveport
Unless I need the US trustee.