438 associates

169 unique ZIP codes
    167 New England ZIP codes
      1 California ZIP code
      1 Minnesota ZIP code

    129 Massachusetts ZIP codes
        51 inside Rt 128 ZIP codes
           39 with transit options
        78 outside Rt 128 ZIP codes

     37 New Hampshire ZIP codes
      1 Rhode Island ZIP code


NOTE: Woburn carries an 018 ZIP code, but straddles 128 with
most of it inside.  Winchester is entirely inside 128 and also
carries a 018 ZIP code.  Falmouth is 02541 but it's out on the
cape.  Harwich is 02645 and also on the cape.


MBTA served ZIP codes (29):
01801
02110
02116
02118
02127
02129
02135
02138
02139
02140
02141
02143
02144
02148
02155
02176
02215
02421
02446
02451
02452
02458
02459
02464
02466
02472
02474
02476
02478


Commuter rail served ZIP codes (19):
01890
01913
01921
01938
01950
01970
02035
02038
02052
02053
02054
02056
02066
02081
02346
02359
02453
02457
02492