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, CAPITOL HEIGHTS, MD 20791-5601
PO BOX 5602, CAPITOL HEIGHTS, MD 20791-5602
PO BOX 5603, CAPITOL HEIGHTS, MD 20791-5603
PO BOX 5604, CAPITOL HEIGHTS, MD 20791-5604
PO BOX 5605, CAPITOL HEIGHTS, MD 20791-5605
PO BOX 5606, CAPITOL HEIGHTS, MD 20791-5606
PO BOX 5607, CAPITOL HEIGHTS, MD 20791-5607
PO BOX 5608, CAPITOL HEIGHTS, MD 20791-5608
PO BOX 5609, CAPITOL HEIGHTS, MD 20791-5609
PO BOX 5610, CAPITOL HEIGHTS, MD 20791-5610
PO BOX 5611, CAPITOL HEIGHTS, MD 20791-5611
PO BOX 5612, CAPITOL HEIGHTS, MD 20791-5612
PO BOX 5613, CAPITOL HEIGHTS, MD 20791-5613
PO BOX 5614, CAPITOL HEIGHTS, MD 20791-5614
PO BOX 5615, CAPITOL HEIGHTS, MD 20791-5615
PO BOX 5616, CAPITOL HEIGHTS, MD 20791-5616
PO BOX 5617, CAPITOL HEIGHTS, MD 20791-5617
PO BOX 5618, CAPITOL HEIGHTS, MD 20791-5618
PO BOX 5619, CAPITOL HEIGHTS, MD 20791-5619
PO BOX 5620, CAPITOL HEIGHTS, MD 20791-5620
PO BOX 5621, CAPITOL HEIGHTS, MD 20791-5621
PO BOX 5622, CAPITOL HEIGHTS, MD 20791-5622
PO BOX 5623, CAPITOL HEIGHTS, MD 20791-5623
PO BOX 5624, CAPITOL HEIGHTS, MD 20791-5624
PO BOX 5625, CAPITOL HEIGHTS, MD 20791-5625
PO BOX 5626, CAPITOL HEIGHTS, MD 20791-5626
PO BOX 5627, CAPITOL HEIGHTS, MD 20791-5627
PO BOX 5628, CAPITOL HEIGHTS, MD 20791-5628
PO BOX 5629, CAPITOL HEIGHTS, MD 20791-5629
PO BOX 5630, CAPITOL HEIGHTS, MD 20791-5630
PO BOX 5631, CAPITOL HEIGHTS, MD 20791-5631
PO BOX 5632, CAPITOL HEIGHTS, MD 20791-5632
PO BOX 5633, CAPITOL HEIGHTS, MD 20791-5633
PO BOX 5634, CAPITOL HEIGHTS, MD 20791-5634
PO BOX 5635, CAPITOL HEIGHTS, MD 20791-5635
PO BOX 5636, CAPITOL HEIGHTS, MD 20791-5636
PO BOX 5637, CAPITOL HEIGHTS, MD 20791-5637
PO BOX 5638, CAPITOL HEIGHTS, MD 20791-5638
PO BOX 5639, CAPITOL HEIGHTS, MD 20791-5639
PO BOX 5640, CAPITOL HEIGHTS, MD 20791-5640
PO BOX 5641, CAPITOL HEIGHTS, MD 20791-5641
PO BOX 5642, CAPITOL HEIGHTS, MD 20791-5642
PO BOX 5643, CAPITOL HEIGHTS, MD 20791-5643
PO BOX 5644, CAPITOL HEIGHTS, MD 20791-5644
PO BOX 5645, CAPITOL HEIGHTS, MD 20791-5645
PO BOX 5646, CAPITOL HEIGHTS, MD 20791-5646
PO BOX 5647, CAPITOL HEIGHTS, MD 20791-5647
PO BOX 5648, CAPITOL HEIGHTS, MD 20791-5648
PO BOX 5649, CAPITOL HEIGHTS, MD 20791-5649
PO BOX 5650, CAPITOL HEIGHTS, MD 20791-5650
PO BOX 5651, CAPITOL HEIGHTS, MD 20791-5651
PO BOX 5652, CAPITOL HEIGHTS, MD 20791-5652
PO BOX 5653, CAPITOL HEIGHTS, MD 20791-5653
PO BOX 5654, CAPITOL HEIGHTS, MD 20791-5654
PO BOX 5655, CAPITOL HEIGHTS, MD 20791-5655
PO BOX 5656, CAPITOL HEIGHTS, MD 20791-5656
PO BOX 5657, CAPITOL HEIGHTS, MD 20791-5657
PO BOX 5658, CAPITOL HEIGHTS, MD 20791-5658
PO BOX 5659, CAPITOL HEIGHTS, MD 20791-5659
PO BOX 5660, CAPITOL HEIGHTS, MD 20791-5660
PO BOX 5661, CAPITOL HEIGHTS, MD 20791-5661
PO BOX 5662, CAPITOL HEIGHTS, MD 20791-5662
PO BOX 5663, CAPITOL HEIGHTS, MD 20791-5663
PO BOX 5664, CAPITOL HEIGHTS, MD 20791-5664
PO BOX 5665, CAPITOL HEIGHTS, MD 20791-5665
PO BOX 5666, CAPITOL HEIGHTS, MD 20791-5666
PO BOX 5667, CAPITOL HEIGHTS, MD 20791-5667
PO BOX 5668, CAPITOL HEIGHTS, MD 20791-5668
PO BOX 5669, CAPITOL HEIGHTS, MD 20791-5669
PO BOX 5670, CAPITOL HEIGHTS, MD 20791-5670
PO BOX 5671, CAPITOL HEIGHTS, MD 20791-5671
PO BOX 5672, CAPITOL HEIGHTS, MD 20791-5672
PO BOX 5673, CAPITOL HEIGHTS, MD 20791-5673
PO BOX 5674, CAPITOL HEIGHTS, MD 20791-5674
PO BOX 5675, CAPITOL HEIGHTS, MD 20791-5675
PO BOX 5676, CAPITOL HEIGHTS, MD 20791-5676
PO BOX 5677, CAPITOL HEIGHTS, MD 20791-5677
PO BOX 5678, CAPITOL HEIGHTS, MD 20791-5678
PO BOX 5679, CAPITOL HEIGHTS, MD 20791-5679
PO BOX 5680, CAPITOL HEIGHTS, MD 20791-5680
PO BOX 5681, CAPITOL HEIGHTS, MD 20791-5681
PO BOX 5682, CAPITOL HEIGHTS, MD 20791-5682
PO BOX 5683, CAPITOL HEIGHTS, MD 20791-5683
PO BOX 5684, CAPITOL HEIGHTS, MD 20791-5684
PO BOX 5685, CAPITOL HEIGHTS, MD 20791-5685
PO BOX 5686, CAPITOL HEIGHTS, MD 20791-5686
PO BOX 5687, CAPITOL HEIGHTS, MD 20791-5687
PO BOX 5688, CAPITOL HEIGHTS, MD 20791-5688
PO BOX 5689, CAPITOL HEIGHTS, MD 20791-5689
PO BOX 5690, CAPITOL HEIGHTS, MD 20791-5690
PO BOX 5691, CAPITOL HEIGHTS, MD 20791-5691
PO BOX 5692, CAPITOL HEIGHTS, MD 20791-5692
PO BOX 5693, CAPITOL HEIGHTS, MD 20791-5693
PO BOX 5694, CAPITOL HEIGHTS, MD 20791-5694
PO BOX 5695, CAPITOL HEIGHTS, MD 20791-5695
PO BOX 5696, CAPITOL HEIGHTS, MD 20791-5696
PO BOX 5697, CAPITOL HEIGHTS, MD 20791-5697
PO BOX 5698, CAPITOL HEIGHTS, MD 20791-5698
PO BOX 5699, CAPITOL HEIGHTS, MD 20791-5699
PO BOX 5700, CAPITOL HEIGHTS, MD 20791-5700
PO BOX 5701, CAPITOL HEIGHTS, MD 20791-5701
PO BOX 5702, CAPITOL HEIGHTS, MD 20791-5702
PO BOX 5703, CAPITOL HEIGHTS, MD 20791-5703
PO BOX 5704, CAPITOL HEIGHTS, MD 20791-5704
PO BOX 5705, CAPITOL HEIGHTS, MD 20791-5705
PO BOX 5706, CAPITOL HEIGHTS, MD 20791-5706
PO BOX 5707, CAPITOL HEIGHTS, MD 20791-5707
PO BOX 5708, CAPITOL HEIGHTS, MD 20791-5708
PO BOX 5709, CAPITOL HEIGHTS, MD 20791-5709
PO BOX 5710, CAPITOL HEIGHTS, MD 20791-5710
PO BOX 5711, CAPITOL HEIGHTS, MD 20791-5711
PO BOX 5712, CAPITOL HEIGHTS, MD 20791-5712
PO BOX 5713, CAPITOL HEIGHTS, MD 20791-5713
PO BOX 5714, CAPITOL HEIGHTS, MD 20791-5714
PO BOX 5715, CAPITOL HEIGHTS, MD 20791-5715
PO BOX 5716, CAPITOL HEIGHTS, MD 20791-5716
PO BOX 5717, CAPITOL HEIGHTS, MD 20791-5717
PO BOX 5718, CAPITOL HEIGHTS, MD 20791-5718
PO BOX 5719, CAPITOL HEIGHTS, MD 20791-5719
PO BOX 5720, CAPITOL HEIGHTS, MD 20791-5720
PO BOX 5721, CAPITOL HEIGHTS, MD 20791-5721
PO BOX 5722, CAPITOL HEIGHTS, MD 20791-5722
PO BOX 5723, CAPITOL HEIGHTS, MD 20791-5723
PO BOX 5724, CAPITOL HEIGHTS, MD 20791-5724
PO BOX 5725, CAPITOL HEIGHTS, MD 20791-5725
PO BOX 5726, CAPITOL HEIGHTS, MD 20791-5726
PO BOX 5727, CAPITOL HEIGHTS, MD 20791-5727
PO BOX 5728, CAPITOL HEIGHTS, MD 20791-5728
PO BOX 5729, CAPITOL HEIGHTS, MD 20791-5729
PO BOX 5730, CAPITOL HEIGHTS, MD 20791-5730
PO BOX 5731, CAPITOL HEIGHTS, MD 20791-5731
PO BOX 5732, CAPITOL HEIGHTS, MD 20791-5732
PO BOX 5733, CAPITOL HEIGHTS, MD 20791-5733
PO BOX 5734, CAPITOL HEIGHTS, MD 20791-5734
PO BOX 5735, CAPITOL HEIGHTS, MD 20791-5735
PO BOX 5736, CAPITOL HEIGHTS, MD 20791-5736
PO BOX 5737, CAPITOL HEIGHTS, MD 20791-5737
PO BOX 5738, CAPITOL HEIGHTS, MD 20791-5738
PO BOX 5739, CAPITOL HEIGHTS, MD 20791-5739
PO BOX 5740, CAPITOL HEIGHTS, MD 20791-5740
Add new comment