So, I'm queer and made up the system for "phone numbers."
Example:
3-70-10000
First group: Region (as per their generation).
Second group: Area
First digit: Random decision
Second digit:
0 = Southern Peninsula
1 = Continental North
2 = Eastern Peninsula
3 = Southwestern Shoals
4 = Northeastern Archipelago
5 = Southern Sea
Third group: Type of contact
First digit:
1 = Rangers
2 = League
3 = Commercial
4 = Medical
5 = Personal: Residence
6 = Personal: Transportable
7 = Personal: Business
8 = Personal: Text Messaging
9 = Education
0 = Emergency
Last digits: Random 4 digit combination.