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 681, COLUMBUS, MS 39703-0681
PO BOX 682, COLUMBUS, MS 39703-0682
PO BOX 683, COLUMBUS, MS 39703-0683
PO BOX 684, COLUMBUS, MS 39703-0684
PO BOX 685, COLUMBUS, MS 39703-0685
PO BOX 686, COLUMBUS, MS 39703-0686
PO BOX 687, COLUMBUS, MS 39703-0687
PO BOX 688, COLUMBUS, MS 39703-0688
PO BOX 689, COLUMBUS, MS 39703-0689
PO BOX 690, COLUMBUS, MS 39703-0690
PO BOX 691, COLUMBUS, MS 39703-0691
PO BOX 692, COLUMBUS, MS 39703-0692
PO BOX 693, COLUMBUS, MS 39703-0693
PO BOX 694, COLUMBUS, MS 39703-0694
PO BOX 695, COLUMBUS, MS 39703-0695
PO BOX 696, COLUMBUS, MS 39703-0696
PO BOX 697, COLUMBUS, MS 39703-0697
PO BOX 698, COLUMBUS, MS 39703-0698
PO BOX 699, COLUMBUS, MS 39703-0699
PO BOX 700, COLUMBUS, MS 39703-0700
PO BOX 701, COLUMBUS, MS 39703-0701
PO BOX 702, COLUMBUS, MS 39703-0702
PO BOX 703, COLUMBUS, MS 39703-0703
PO BOX 704, COLUMBUS, MS 39703-0704
PO BOX 705, COLUMBUS, MS 39703-0705
PO BOX 706, COLUMBUS, MS 39703-0706
PO BOX 707, COLUMBUS, MS 39703-0707
PO BOX 708, COLUMBUS, MS 39703-0708
PO BOX 709, COLUMBUS, MS 39703-0709
PO BOX 710, COLUMBUS, MS 39703-0710
PO BOX 711, COLUMBUS, MS 39703-0711
PO BOX 712, COLUMBUS, MS 39703-0712
PO BOX 713, COLUMBUS, MS 39703-0713
PO BOX 714, COLUMBUS, MS 39703-0714
PO BOX 715, COLUMBUS, MS 39703-0715
PO BOX 716, COLUMBUS, MS 39703-0716
PO BOX 717, COLUMBUS, MS 39703-0717
PO BOX 718, COLUMBUS, MS 39703-0718
PO BOX 719, COLUMBUS, MS 39703-0719
PO BOX 720, COLUMBUS, MS 39703-0720
PO BOX 721, COLUMBUS, MS 39703-0721
PO BOX 722, COLUMBUS, MS 39703-0722
PO BOX 723, COLUMBUS, MS 39703-0723
PO BOX 724, COLUMBUS, MS 39703-0724
PO BOX 725, COLUMBUS, MS 39703-0725
PO BOX 726, COLUMBUS, MS 39703-0726
PO BOX 727, COLUMBUS, MS 39703-0727
PO BOX 728, COLUMBUS, MS 39703-0728
PO BOX 729, COLUMBUS, MS 39703-0729
PO BOX 730, COLUMBUS, MS 39703-0730
PO BOX 731, COLUMBUS, MS 39703-0731
PO BOX 732, COLUMBUS, MS 39703-0732
PO BOX 733, COLUMBUS, MS 39703-0733
PO BOX 734, COLUMBUS, MS 39703-0734
PO BOX 735, COLUMBUS, MS 39703-0735
PO BOX 736, COLUMBUS, MS 39703-0736
PO BOX 737, COLUMBUS, MS 39703-0737
PO BOX 738, COLUMBUS, MS 39703-0738
PO BOX 739, COLUMBUS, MS 39703-0739
PO BOX 740, COLUMBUS, MS 39703-0740
PO BOX 741, COLUMBUS, MS 39703-0741
PO BOX 742, COLUMBUS, MS 39703-0742
PO BOX 743, COLUMBUS, MS 39703-0743
PO BOX 744, COLUMBUS, MS 39703-0744
PO BOX 745, COLUMBUS, MS 39703-0745
PO BOX 746, COLUMBUS, MS 39703-0746
PO BOX 747, COLUMBUS, MS 39703-0747
PO BOX 748, COLUMBUS, MS 39703-0748
PO BOX 749, COLUMBUS, MS 39703-0749
PO BOX 750, COLUMBUS, MS 39703-0750
PO BOX 751, COLUMBUS, MS 39703-0751
PO BOX 752, COLUMBUS, MS 39703-0752
PO BOX 753, COLUMBUS, MS 39703-0753
PO BOX 754, COLUMBUS, MS 39703-0754
PO BOX 755, COLUMBUS, MS 39703-0755
PO BOX 756, COLUMBUS, MS 39703-0756
PO BOX 757, COLUMBUS, MS 39703-0757
PO BOX 758, COLUMBUS, MS 39703-0758
PO BOX 759, COLUMBUS, MS 39703-0759
PO BOX 760, COLUMBUS, MS 39703-0760
PO BOX 761, COLUMBUS, MS 39703-0761
PO BOX 762, COLUMBUS, MS 39703-0762
PO BOX 763, COLUMBUS, MS 39703-0763
PO BOX 764, COLUMBUS, MS 39703-0764
PO BOX 765, COLUMBUS, MS 39703-0765
PO BOX 766, COLUMBUS, MS 39703-0766
PO BOX 767, COLUMBUS, MS 39703-0767
PO BOX 768, COLUMBUS, MS 39703-0768
PO BOX 769, COLUMBUS, MS 39703-0769
PO BOX 770, COLUMBUS, MS 39703-0770
PO BOX 771, COLUMBUS, MS 39703-0771
PO BOX 772, COLUMBUS, MS 39703-0772
PO BOX 773, COLUMBUS, MS 39703-0773
PO BOX 774, COLUMBUS, MS 39703-0774
PO BOX 775, COLUMBUS, MS 39703-0775
PO BOX 776, COLUMBUS, MS 39703-0776
PO BOX 777, COLUMBUS, MS 39703-0777
PO BOX 778, COLUMBUS, MS 39703-0778
PO BOX 779, COLUMBUS, MS 39703-0779
PO BOX 780, COLUMBUS, MS 39703-0780
PO BOX 781, COLUMBUS, MS 39703-0781
PO BOX 782, COLUMBUS, MS 39703-0782
PO BOX 783, COLUMBUS, MS 39703-0783
PO BOX 784, COLUMBUS, MS 39703-0784
PO BOX 785, COLUMBUS, MS 39703-0785
PO BOX 786, COLUMBUS, MS 39703-0786
PO BOX 787, COLUMBUS, MS 39703-0787
PO BOX 788, COLUMBUS, MS 39703-0788
PO BOX 789, COLUMBUS, MS 39703-0789
PO BOX 790, COLUMBUS, MS 39703-0790
PO BOX 791, COLUMBUS, MS 39703-0791
PO BOX 792, COLUMBUS, MS 39703-0792
PO BOX 793, COLUMBUS, MS 39703-0793
PO BOX 794, COLUMBUS, MS 39703-0794
PO BOX 795, COLUMBUS, MS 39703-0795
PO BOX 796, COLUMBUS, MS 39703-0796
PO BOX 797, COLUMBUS, MS 39703-0797
PO BOX 798, COLUMBUS, MS 39703-0798
PO BOX 799, COLUMBUS, MS 39703-0799
PO BOX 800, COLUMBUS, MS 39703-0800
PO BOX 801, COLUMBUS, MS 39703-0801
PO BOX 802, COLUMBUS, MS 39703-0802
PO BOX 803, COLUMBUS, MS 39703-0803
PO BOX 804, COLUMBUS, MS 39703-0804
PO BOX 805, COLUMBUS, MS 39703-0805
PO BOX 806, COLUMBUS, MS 39703-0806
PO BOX 807, COLUMBUS, MS 39703-0807
PO BOX 808, COLUMBUS, MS 39703-0808
PO BOX 809, COLUMBUS, MS 39703-0809
PO BOX 810, COLUMBUS, MS 39703-0810
PO BOX 811, COLUMBUS, MS 39703-0811
PO BOX 812, COLUMBUS, MS 39703-0812
PO BOX 813, COLUMBUS, MS 39703-0813
PO BOX 814, COLUMBUS, MS 39703-0814
PO BOX 815, COLUMBUS, MS 39703-0815
PO BOX 816, COLUMBUS, MS 39703-0816
PO BOX 817, COLUMBUS, MS 39703-0817
PO BOX 818, COLUMBUS, MS 39703-0818
PO BOX 819, COLUMBUS, MS 39703-0819
PO BOX 820, COLUMBUS, MS 39703-0820
PO BOX 821, COLUMBUS, MS 39703-0821
PO BOX 822, COLUMBUS, MS 39703-0822
PO BOX 823, COLUMBUS, MS 39703-0823
PO BOX 824, COLUMBUS, MS 39703-0824
PO BOX 825, COLUMBUS, MS 39703-0825
PO BOX 826, COLUMBUS, MS 39703-0826
PO BOX 827, COLUMBUS, MS 39703-0827
PO BOX 828, COLUMBUS, MS 39703-0828
PO BOX 829, COLUMBUS, MS 39703-0829
PO BOX 830, COLUMBUS, MS 39703-0830
PO BOX 831, COLUMBUS, MS 39703-0831
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