A PO BOX number can be less than or more than four digit. For post office boxes, the general rule is that each box has its own ZIP+4 code.
The last four digit is often one of the following:
1. Zero plus the last three digits of the box number (eg. PO BOX 1001, Los Angeles CA 90001-0001).
2. The last four digits of the box number (eg. PO BOX 9991, Twin Peaks CA 92391-9991).
3. If the box number is less than four digits, enough zeros prepended to the front of the box number to produce a four-digit number(eg. PO BOX 1, Shreveport LA 71161-0001).
However, there is no uniform rule, the zip code plus four is for reference only, the ZIP+4 code must be looked up individually for each box in the USPS offical website.
PO BOX 5601, COLORADO SPRINGS, CO 80931-5601
PO BOX 5602, COLORADO SPRINGS, CO 80931-5602
PO BOX 5603, COLORADO SPRINGS, CO 80931-5603
PO BOX 5604, COLORADO SPRINGS, CO 80931-5604
PO BOX 5605, COLORADO SPRINGS, CO 80931-5605
PO BOX 5606, COLORADO SPRINGS, CO 80931-5606
PO BOX 5607, COLORADO SPRINGS, CO 80931-5607
PO BOX 5608, COLORADO SPRINGS, CO 80931-5608
PO BOX 5609, COLORADO SPRINGS, CO 80931-5609
PO BOX 5610, COLORADO SPRINGS, CO 80931-5610
PO BOX 5611, COLORADO SPRINGS, CO 80931-5611
PO BOX 5612, COLORADO SPRINGS, CO 80931-5612
PO BOX 5613, COLORADO SPRINGS, CO 80931-5613
PO BOX 5614, COLORADO SPRINGS, CO 80931-5614
PO BOX 5615, COLORADO SPRINGS, CO 80931-5615
PO BOX 5616, COLORADO SPRINGS, CO 80931-5616
PO BOX 5617, COLORADO SPRINGS, CO 80931-5617
PO BOX 5618, COLORADO SPRINGS, CO 80931-5618
PO BOX 5619, COLORADO SPRINGS, CO 80931-5619
PO BOX 5620, COLORADO SPRINGS, CO 80931-5620
PO BOX 5621, COLORADO SPRINGS, CO 80931-5621
PO BOX 5622, COLORADO SPRINGS, CO 80931-5622
PO BOX 5623, COLORADO SPRINGS, CO 80931-5623
PO BOX 5624, COLORADO SPRINGS, CO 80931-5624
PO BOX 5625, COLORADO SPRINGS, CO 80931-5625
PO BOX 5626, COLORADO SPRINGS, CO 80931-5626
PO BOX 5627, COLORADO SPRINGS, CO 80931-5627
PO BOX 5628, COLORADO SPRINGS, CO 80931-5628
PO BOX 5629, COLORADO SPRINGS, CO 80931-5629
PO BOX 5630, COLORADO SPRINGS, CO 80931-5630
PO BOX 5631, COLORADO SPRINGS, CO 80931-5631
PO BOX 5632, COLORADO SPRINGS, CO 80931-5632
PO BOX 5633, COLORADO SPRINGS, CO 80931-5633
PO BOX 5634, COLORADO SPRINGS, CO 80931-5634
PO BOX 5635, COLORADO SPRINGS, CO 80931-5635
PO BOX 5636, COLORADO SPRINGS, CO 80931-5636
PO BOX 5637, COLORADO SPRINGS, CO 80931-5637
PO BOX 5638, COLORADO SPRINGS, CO 80931-5638
PO BOX 5639, COLORADO SPRINGS, CO 80931-5639
PO BOX 5640, COLORADO SPRINGS, CO 80931-5640
PO BOX 5641, COLORADO SPRINGS, CO 80931-5641
PO BOX 5642, COLORADO SPRINGS, CO 80931-5642
PO BOX 5643, COLORADO SPRINGS, CO 80931-5643
PO BOX 5644, COLORADO SPRINGS, CO 80931-5644
PO BOX 5645, COLORADO SPRINGS, CO 80931-5645
PO BOX 5646, COLORADO SPRINGS, CO 80931-5646
PO BOX 5647, COLORADO SPRINGS, CO 80931-5647
PO BOX 5648, COLORADO SPRINGS, CO 80931-5648
PO BOX 5649, COLORADO SPRINGS, CO 80931-5649
PO BOX 5650, COLORADO SPRINGS, CO 80931-5650
PO BOX 5651, COLORADO SPRINGS, CO 80931-5651
PO BOX 5652, COLORADO SPRINGS, CO 80931-5652
PO BOX 5653, COLORADO SPRINGS, CO 80931-5653
PO BOX 5654, COLORADO SPRINGS, CO 80931-5654
PO BOX 5655, COLORADO SPRINGS, CO 80931-5655
PO BOX 5656, COLORADO SPRINGS, CO 80931-5656
PO BOX 5657, COLORADO SPRINGS, CO 80931-5657
PO BOX 5658, COLORADO SPRINGS, CO 80931-5658
PO BOX 5659, COLORADO SPRINGS, CO 80931-5659
PO BOX 5660, COLORADO SPRINGS, CO 80931-5660
PO BOX 5661, COLORADO SPRINGS, CO 80931-5661
PO BOX 5662, COLORADO SPRINGS, CO 80931-5662
PO BOX 5663, COLORADO SPRINGS, CO 80931-5663
PO BOX 5664, COLORADO SPRINGS, CO 80931-5664
PO BOX 5665, COLORADO SPRINGS, CO 80931-5665
PO BOX 5666, COLORADO SPRINGS, CO 80931-5666
PO BOX 5667, COLORADO SPRINGS, CO 80931-5667
PO BOX 5668, COLORADO SPRINGS, CO 80931-5668
PO BOX 5669, COLORADO SPRINGS, CO 80931-5669
PO BOX 5670, COLORADO SPRINGS, CO 80931-5670
PO BOX 5671, COLORADO SPRINGS, CO 80931-5671
PO BOX 5672, COLORADO SPRINGS, CO 80931-5672
PO BOX 5673, COLORADO SPRINGS, CO 80931-5673
PO BOX 5674, COLORADO SPRINGS, CO 80931-5674
PO BOX 5675, COLORADO SPRINGS, CO 80931-5675
PO BOX 5676, COLORADO SPRINGS, CO 80931-5676
PO BOX 5677, COLORADO SPRINGS, CO 80931-5677
PO BOX 5678, COLORADO SPRINGS, CO 80931-5678
PO BOX 5679, COLORADO SPRINGS, CO 80931-5679
PO BOX 5680, COLORADO SPRINGS, CO 80931-5680
PO BOX 5681, COLORADO SPRINGS, CO 80931-5681
PO BOX 5682, COLORADO SPRINGS, CO 80931-5682
PO BOX 5683, COLORADO SPRINGS, CO 80931-5683
PO BOX 5684, COLORADO SPRINGS, CO 80931-5684
PO BOX 5685, COLORADO SPRINGS, CO 80931-5685
PO BOX 5686, COLORADO SPRINGS, CO 80931-5686
PO BOX 5687, COLORADO SPRINGS, CO 80931-5687
PO BOX 5688, COLORADO SPRINGS, CO 80931-5688
PO BOX 5689, COLORADO SPRINGS, CO 80931-5689
PO BOX 5690, COLORADO SPRINGS, CO 80931-5690
PO BOX 5691, COLORADO SPRINGS, CO 80931-5691
PO BOX 5692, COLORADO SPRINGS, CO 80931-5692
PO BOX 5693, COLORADO SPRINGS, CO 80931-5693
PO BOX 5694, COLORADO SPRINGS, CO 80931-5694
PO BOX 5695, COLORADO SPRINGS, CO 80931-5695
PO BOX 5696, COLORADO SPRINGS, CO 80931-5696
PO BOX 5697, COLORADO SPRINGS, CO 80931-5697
PO BOX 5698, COLORADO SPRINGS, CO 80931-5698
PO BOX 5699, COLORADO SPRINGS, CO 80931-5699
PO BOX 5700, COLORADO SPRINGS, CO 80931-5700
PO BOX 5701, COLORADO SPRINGS, CO 80931-5701
PO BOX 5702, COLORADO SPRINGS, CO 80931-5702
PO BOX 5703, COLORADO SPRINGS, CO 80931-5703
PO BOX 5704, COLORADO SPRINGS, CO 80931-5704
PO BOX 5705, COLORADO SPRINGS, CO 80931-5705
PO BOX 5706, COLORADO SPRINGS, CO 80931-5706
PO BOX 5707, COLORADO SPRINGS, CO 80931-5707
PO BOX 5708, COLORADO SPRINGS, CO 80931-5708
PO BOX 5709, COLORADO SPRINGS, CO 80931-5709
PO BOX 5710, COLORADO SPRINGS, CO 80931-5710
PO BOX 5711, COLORADO SPRINGS, CO 80931-5711
PO BOX 5712, COLORADO SPRINGS, CO 80931-5712
PO BOX 5713, COLORADO SPRINGS, CO 80931-5713
PO BOX 5714, COLORADO SPRINGS, CO 80931-5714
PO BOX 5715, COLORADO SPRINGS, CO 80931-5715
PO BOX 5716, COLORADO SPRINGS, CO 80931-5716
PO BOX 5717, COLORADO SPRINGS, CO 80931-5717
PO BOX 5718, COLORADO SPRINGS, CO 80931-5718
Add new comment