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 6621, DAVIDSON, NC 28035-6621
PO BOX 6622, DAVIDSON, NC 28035-6622
PO BOX 6623, DAVIDSON, NC 28035-6623
PO BOX 6624, DAVIDSON, NC 28035-6624
PO BOX 6625, DAVIDSON, NC 28035-6625
PO BOX 6626, DAVIDSON, NC 28035-6626
PO BOX 6627, DAVIDSON, NC 28035-6627
PO BOX 6628, DAVIDSON, NC 28035-6628
PO BOX 6629, DAVIDSON, NC 28035-6629
PO BOX 6630, DAVIDSON, NC 28035-6630
PO BOX 6631, DAVIDSON, NC 28035-6631
PO BOX 6632, DAVIDSON, NC 28035-6632
PO BOX 6633, DAVIDSON, NC 28035-6633
PO BOX 6634, DAVIDSON, NC 28035-6634
PO BOX 6635, DAVIDSON, NC 28035-6635
PO BOX 6636, DAVIDSON, NC 28035-6636
PO BOX 6637, DAVIDSON, NC 28035-6637
PO BOX 6638, DAVIDSON, NC 28035-6638
PO BOX 6639, DAVIDSON, NC 28035-6639
PO BOX 6640, DAVIDSON, NC 28035-6640
PO BOX 6641, DAVIDSON, NC 28035-6641
PO BOX 6642, DAVIDSON, NC 28035-6642
PO BOX 6643, DAVIDSON, NC 28035-6643
PO BOX 6644, DAVIDSON, NC 28035-6644
PO BOX 6645, DAVIDSON, NC 28035-6645
PO BOX 6646, DAVIDSON, NC 28035-6646
PO BOX 6647, DAVIDSON, NC 28035-6647
PO BOX 6648, DAVIDSON, NC 28035-6648
PO BOX 6649, DAVIDSON, NC 28035-6649
PO BOX 6650, DAVIDSON, NC 28035-6650
PO BOX 6651, DAVIDSON, NC 28035-6651
PO BOX 6652, DAVIDSON, NC 28035-6652
PO BOX 6653, DAVIDSON, NC 28035-6653
PO BOX 6654, DAVIDSON, NC 28035-6654
PO BOX 6655, DAVIDSON, NC 28035-6655
PO BOX 6656, DAVIDSON, NC 28035-6656
PO BOX 6657, DAVIDSON, NC 28035-6657
PO BOX 6658, DAVIDSON, NC 28035-6658
PO BOX 6659, DAVIDSON, NC 28035-6659
PO BOX 6660, DAVIDSON, NC 28035-6660
PO BOX 6661, DAVIDSON, NC 28035-6661
PO BOX 6662, DAVIDSON, NC 28035-6662
PO BOX 6663, DAVIDSON, NC 28035-6663
PO BOX 6664, DAVIDSON, NC 28035-6664
PO BOX 6665, DAVIDSON, NC 28035-6665
PO BOX 6666, DAVIDSON, NC 28035-6666
PO BOX 6667, DAVIDSON, NC 28035-6667
PO BOX 6668, DAVIDSON, NC 28035-6668
PO BOX 6669, DAVIDSON, NC 28035-6669
PO BOX 6670, DAVIDSON, NC 28035-6670
PO BOX 6671, DAVIDSON, NC 28035-6671
PO BOX 6672, DAVIDSON, NC 28035-6672
PO BOX 6673, DAVIDSON, NC 28035-6673
PO BOX 6674, DAVIDSON, NC 28035-6674
PO BOX 6675, DAVIDSON, NC 28035-6675
PO BOX 6676, DAVIDSON, NC 28035-6676
PO BOX 6677, DAVIDSON, NC 28035-6677
PO BOX 6678, DAVIDSON, NC 28035-6678
PO BOX 6679, DAVIDSON, NC 28035-6679
PO BOX 6680, DAVIDSON, NC 28035-6680
PO BOX 6681, DAVIDSON, NC 28035-6681
PO BOX 6682, DAVIDSON, NC 28035-6682
PO BOX 6683, DAVIDSON, NC 28035-6683
PO BOX 6684, DAVIDSON, NC 28035-6684
PO BOX 6685, DAVIDSON, NC 28035-6685
PO BOX 6686, DAVIDSON, NC 28035-6686
PO BOX 6687, DAVIDSON, NC 28035-6687
PO BOX 6688, DAVIDSON, NC 28035-6688
PO BOX 6689, DAVIDSON, NC 28035-6689
PO BOX 6690, DAVIDSON, NC 28035-6690
PO BOX 6691, DAVIDSON, NC 28035-6691
PO BOX 6692, DAVIDSON, NC 28035-6692
PO BOX 6693, DAVIDSON, NC 28035-6693
PO BOX 6694, DAVIDSON, NC 28035-6694
PO BOX 6695, DAVIDSON, NC 28035-6695
PO BOX 6696, DAVIDSON, NC 28035-6696
PO BOX 6697, DAVIDSON, NC 28035-6697
PO BOX 6698, DAVIDSON, NC 28035-6698
PO BOX 6699, DAVIDSON, NC 28035-6699
PO BOX 6700, DAVIDSON, NC 28035-6700
PO BOX 6701, DAVIDSON, NC 28035-6701
PO BOX 6702, DAVIDSON, NC 28035-6702
PO BOX 6703, DAVIDSON, NC 28035-6703
PO BOX 6704, DAVIDSON, NC 28035-6704
PO BOX 6705, DAVIDSON, NC 28035-6705
PO BOX 6706, DAVIDSON, NC 28035-6706
PO BOX 6707, DAVIDSON, NC 28035-6707
PO BOX 6708, DAVIDSON, NC 28035-6708
PO BOX 6709, DAVIDSON, NC 28035-6709
PO BOX 6710, DAVIDSON, NC 28035-6710
PO BOX 6711, DAVIDSON, NC 28035-6711
PO BOX 6712, DAVIDSON, NC 28035-6712
PO BOX 6713, DAVIDSON, NC 28035-6713
PO BOX 6714, DAVIDSON, NC 28035-6714
PO BOX 6715, DAVIDSON, NC 28035-6715
PO BOX 6716, DAVIDSON, NC 28035-6716
PO BOX 6717, DAVIDSON, NC 28035-6717
PO BOX 6718, DAVIDSON, NC 28035-6718
PO BOX 6719, DAVIDSON, NC 28035-6719
PO BOX 6720, DAVIDSON, NC 28035-6720
PO BOX 6721, DAVIDSON, NC 28035-6721
PO BOX 6722, DAVIDSON, NC 28035-6722
PO BOX 6723, DAVIDSON, NC 28035-6723
PO BOX 6724, DAVIDSON, NC 28035-6724
PO BOX 6725, DAVIDSON, NC 28035-6725
PO BOX 6726, DAVIDSON, NC 28035-6726
PO BOX 6727, DAVIDSON, NC 28035-6727
PO BOX 6728, DAVIDSON, NC 28035-6728
PO BOX 6729, DAVIDSON, NC 28035-6729
PO BOX 6730, DAVIDSON, NC 28035-6730
PO BOX 6731, DAVIDSON, NC 28035-6731
PO BOX 6732, DAVIDSON, NC 28035-6732
PO BOX 6733, DAVIDSON, NC 28035-6733
PO BOX 6734, DAVIDSON, NC 28035-6734
PO BOX 6735, DAVIDSON, NC 28035-6735
PO BOX 6736, DAVIDSON, NC 28035-6736
PO BOX 6737, DAVIDSON, NC 28035-6737
PO BOX 6738, DAVIDSON, NC 28035-6738
PO BOX 6739, DAVIDSON, NC 28035-6739
PO BOX 6740, DAVIDSON, NC 28035-6740
PO BOX 6741, DAVIDSON, NC 28035-6741
PO BOX 6742, DAVIDSON, NC 28035-6742
PO BOX 6743, DAVIDSON, NC 28035-6743
PO BOX 6744, DAVIDSON, NC 28035-6744
PO BOX 6745, DAVIDSON, NC 28035-6745
PO BOX 6746, DAVIDSON, NC 28035-6746
PO BOX 6747, DAVIDSON, NC 28035-6747
PO BOX 6748, DAVIDSON, NC 28035-6748
PO BOX 6749, DAVIDSON, NC 28035-6749
PO BOX 6750, DAVIDSON, NC 28035-6750
PO BOX 6751, DAVIDSON, NC 28035-6751
PO BOX 6752, DAVIDSON, NC 28035-6752
PO BOX 6753, DAVIDSON, NC 28035-6753
PO BOX 6754, DAVIDSON, NC 28035-6754
PO BOX 6755, DAVIDSON, NC 28035-6755
PO BOX 6756, DAVIDSON, NC 28035-6756
PO BOX 6757, DAVIDSON, NC 28035-6757
PO BOX 6758, DAVIDSON, NC 28035-6758
PO BOX 6759, DAVIDSON, NC 28035-6759
PO BOX 6760, DAVIDSON, NC 28035-6760
PO BOX 6761, DAVIDSON, NC 28035-6761
PO BOX 6762, DAVIDSON, NC 28035-6762
PO BOX 6763, DAVIDSON, NC 28035-6763
PO BOX 6764, DAVIDSON, NC 28035-6764
PO BOX 6765, DAVIDSON, NC 28035-6765
PO BOX 6766, DAVIDSON, NC 28035-6766
PO BOX 6767, DAVIDSON, NC 28035-6767
PO BOX 6768, DAVIDSON, NC 28035-6768
PO BOX 6769, DAVIDSON, NC 28035-6769
PO BOX 6770, DAVIDSON, NC 28035-6770
PO BOX 6771, DAVIDSON, NC 28035-6771
PO BOX 6772, DAVIDSON, NC 28035-6772
PO BOX 6773, DAVIDSON, NC 28035-6773
PO BOX 6774, DAVIDSON, NC 28035-6774
PO BOX 6775, DAVIDSON, NC 28035-6775
PO BOX 6776, DAVIDSON, NC 28035-6776
PO BOX 6777, DAVIDSON, NC 28035-6777
PO BOX 6778, DAVIDSON, NC 28035-6778
PO BOX 6779, DAVIDSON, NC 28035-6779
PO BOX 6780, DAVIDSON, NC 28035-6780
PO BOX 6781, DAVIDSON, NC 28035-6781
PO BOX 6782, DAVIDSON, NC 28035-6782
PO BOX 6783, DAVIDSON, NC 28035-6783
PO BOX 6784, DAVIDSON, NC 28035-6784
PO BOX 6785, DAVIDSON, NC 28035-6785
PO BOX 6786, DAVIDSON, NC 28035-6786
PO BOX 6787, DAVIDSON, NC 28035-6787
PO BOX 6788, DAVIDSON, NC 28035-6788
PO BOX 6789, DAVIDSON, NC 28035-6789
PO BOX 6790, DAVIDSON, NC 28035-6790
PO BOX 6791, DAVIDSON, NC 28035-6791
PO BOX 6792, DAVIDSON, NC 28035-6792
PO BOX 6793, DAVIDSON, NC 28035-6793
PO BOX 6794, DAVIDSON, NC 28035-6794
PO BOX 6795, DAVIDSON, NC 28035-6795
PO BOX 6796, DAVIDSON, NC 28035-6796
PO BOX 6797, DAVIDSON, NC 28035-6797
PO BOX 6798, DAVIDSON, NC 28035-6798
PO BOX 6799, DAVIDSON, NC 28035-6799
PO BOX 6800, DAVIDSON, NC 28035-6800
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