track2 explain

[casino_jack]

can anyone explain the following track 2 ? i have never seen such a service code. and this track 2 is skimmed and i have physical access to the card. plz suggest if any one knows anything.
track2 : 4591xxxxxx183468=18035267560000000

 

[Fredo]

service code 526

5 National interchange only except under bilateral agreement
2 Contact issuer via online means
6 No restrictions, use PIN where feasible

 

[kkk]

It's like 101, non-chip card

526 are local, regionally locked in most cases.

 

[casino_jack]

okay . thanks for all the inputs . Thank you !