MTA 8: Mohinder and Peter ride this train when going to see Isaac
613: Mohinder's apartment number. Perhaps another inconsistency. Last week, someone brought up that the number was 316 but it was 613 this week. Hmm...316 is apparently a biblical reference
1407: The number to Peter's apartment
231-HOV: Niki's license plate
Just thought it might be something fun to think about (esp. for those who love playing around with numbers/numerology)!
