If you use the missing 6 digits from the pairs to use as the third digit , that will most times get a hit ....
So for Nebraska , the pairs are 15 18 19 58 59 89 .... the missing digits would be 0,2,3,4,6,7 ... so if you take those digits to use as your third digit, if makes these combos
Nebraska
150 152 153 154 156 157
180 182 183 184 186 187
190 192 193 194 196 197
580 582 583 584 586 587
590 592 593 594 596 597
890 892 893 894 896 897