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 641, CLEMSON, SC 29633-0641
PO BOX 642, CLEMSON, SC 29633-0642
PO BOX 643, CLEMSON, SC 29633-0643
PO BOX 644, CLEMSON, SC 29633-0644
PO BOX 645, CLEMSON, SC 29633-0645
PO BOX 646, CLEMSON, SC 29633-0646
PO BOX 647, CLEMSON, SC 29633-0647
PO BOX 648, CLEMSON, SC 29633-0648
PO BOX 649, CLEMSON, SC 29633-0649
PO BOX 650, CLEMSON, SC 29633-0650
PO BOX 651, CLEMSON, SC 29633-0651
PO BOX 652, CLEMSON, SC 29633-0652
PO BOX 653, CLEMSON, SC 29633-0653
PO BOX 654, CLEMSON, SC 29633-0654
PO BOX 655, CLEMSON, SC 29633-0655
PO BOX 656, CLEMSON, SC 29633-0656
PO BOX 657, CLEMSON, SC 29633-0657
PO BOX 658, CLEMSON, SC 29633-0658
PO BOX 659, CLEMSON, SC 29633-0659
PO BOX 660, CLEMSON, SC 29633-0660
PO BOX 661, CLEMSON, SC 29633-0661
PO BOX 662, CLEMSON, SC 29633-0662
PO BOX 663, CLEMSON, SC 29633-0663
PO BOX 664, CLEMSON, SC 29633-0664
PO BOX 665, CLEMSON, SC 29633-0665
PO BOX 666, CLEMSON, SC 29633-0666
PO BOX 667, CLEMSON, SC 29633-0667
PO BOX 668, CLEMSON, SC 29633-0668
PO BOX 669, CLEMSON, SC 29633-0669
PO BOX 670, CLEMSON, SC 29633-0670
PO BOX 671, CLEMSON, SC 29633-0671
PO BOX 672, CLEMSON, SC 29633-0672
PO BOX 673, CLEMSON, SC 29633-0673
PO BOX 674, CLEMSON, SC 29633-0674
PO BOX 675, CLEMSON, SC 29633-0675
PO BOX 676, CLEMSON, SC 29633-0676
PO BOX 677, CLEMSON, SC 29633-0677
PO BOX 678, CLEMSON, SC 29633-0678
PO BOX 679, CLEMSON, SC 29633-0679
PO BOX 680, CLEMSON, SC 29633-0680
PO BOX 681, CLEMSON, SC 29633-0681
PO BOX 682, CLEMSON, SC 29633-0682
PO BOX 683, CLEMSON, SC 29633-0683
PO BOX 684, CLEMSON, SC 29633-0684
PO BOX 685, CLEMSON, SC 29633-0685
PO BOX 686, CLEMSON, SC 29633-0686
PO BOX 687, CLEMSON, SC 29633-0687
PO BOX 688, CLEMSON, SC 29633-0688
PO BOX 689, CLEMSON, SC 29633-0689
PO BOX 690, CLEMSON, SC 29633-0690
PO BOX 691, CLEMSON, SC 29633-0691
PO BOX 692, CLEMSON, SC 29633-0692
PO BOX 693, CLEMSON, SC 29633-0693
PO BOX 694, CLEMSON, SC 29633-0694
PO BOX 695, CLEMSON, SC 29633-0695
PO BOX 696, CLEMSON, SC 29633-0696
PO BOX 697, CLEMSON, SC 29633-0697
PO BOX 698, CLEMSON, SC 29633-0698
PO BOX 699, CLEMSON, SC 29633-0699
PO BOX 700, CLEMSON, SC 29633-0700
PO BOX 701, CLEMSON, SC 29633-0701
PO BOX 702, CLEMSON, SC 29633-0702
PO BOX 703, CLEMSON, SC 29633-0703
PO BOX 704, CLEMSON, SC 29633-0704
PO BOX 705, CLEMSON, SC 29633-0705
PO BOX 706, CLEMSON, SC 29633-0706
PO BOX 707, CLEMSON, SC 29633-0707
PO BOX 708, CLEMSON, SC 29633-0708
PO BOX 709, CLEMSON, SC 29633-0709
PO BOX 710, CLEMSON, SC 29633-0710
PO BOX 711, CLEMSON, SC 29633-0711
PO BOX 712, CLEMSON, SC 29633-0712
PO BOX 713, CLEMSON, SC 29633-0713
PO BOX 714, CLEMSON, SC 29633-0714
PO BOX 715, CLEMSON, SC 29633-0715
PO BOX 716, CLEMSON, SC 29633-0716
PO BOX 717, CLEMSON, SC 29633-0717
PO BOX 718, CLEMSON, SC 29633-0718
PO BOX 719, CLEMSON, SC 29633-0719
PO BOX 720, CLEMSON, SC 29633-0720
PO BOX 721, CLEMSON, SC 29633-0721
PO BOX 722, CLEMSON, SC 29633-0722
PO BOX 723, CLEMSON, SC 29633-0723
PO BOX 724, CLEMSON, SC 29633-0724
PO BOX 725, CLEMSON, SC 29633-0725
PO BOX 726, CLEMSON, SC 29633-0726
PO BOX 727, CLEMSON, SC 29633-0727
PO BOX 728, CLEMSON, SC 29633-0728
PO BOX 729, CLEMSON, SC 29633-0729
PO BOX 730, CLEMSON, SC 29633-0730
PO BOX 731, CLEMSON, SC 29633-0731
PO BOX 732, CLEMSON, SC 29633-0732
PO BOX 733, CLEMSON, SC 29633-0733
PO BOX 734, CLEMSON, SC 29633-0734
PO BOX 735, CLEMSON, SC 29633-0735
PO BOX 736, CLEMSON, SC 29633-0736
PO BOX 737, CLEMSON, SC 29633-0737
PO BOX 738, CLEMSON, SC 29633-0738
PO BOX 739, CLEMSON, SC 29633-0739
PO BOX 740, CLEMSON, SC 29633-0740
PO BOX 741, CLEMSON, SC 29633-0741
PO BOX 742, CLEMSON, SC 29633-0742
PO BOX 743, CLEMSON, SC 29633-0743
PO BOX 744, CLEMSON, SC 29633-0744
PO BOX 745, CLEMSON, SC 29633-0745
PO BOX 746, CLEMSON, SC 29633-0746
PO BOX 747, CLEMSON, SC 29633-0747
PO BOX 748, CLEMSON, SC 29633-0748
PO BOX 749, CLEMSON, SC 29633-0749
PO BOX 750, CLEMSON, SC 29633-0750
PO BOX 751, CLEMSON, SC 29633-0751
PO BOX 752, CLEMSON, SC 29633-0752
PO BOX 753, CLEMSON, SC 29633-0753
PO BOX 754, CLEMSON, SC 29633-0754
PO BOX 755, CLEMSON, SC 29633-0755
PO BOX 756, CLEMSON, SC 29633-0756
PO BOX 757, CLEMSON, SC 29633-0757
PO BOX 758, CLEMSON, SC 29633-0758
PO BOX 759, CLEMSON, SC 29633-0759
PO BOX 760, CLEMSON, SC 29633-0760
PO BOX 761, CLEMSON, SC 29633-0761
PO BOX 762, CLEMSON, SC 29633-0762
PO BOX 763, CLEMSON, SC 29633-0763
PO BOX 764, CLEMSON, SC 29633-0764
PO BOX 765, CLEMSON, SC 29633-0765
PO BOX 766, CLEMSON, SC 29633-0766
PO BOX 767, CLEMSON, SC 29633-0767
PO BOX 768, CLEMSON, SC 29633-0768
PO BOX 769, CLEMSON, SC 29633-0769
PO BOX 770, CLEMSON, SC 29633-0770
PO BOX 771, CLEMSON, SC 29633-0771
PO BOX 772, CLEMSON, SC 29633-0772
PO BOX 773, CLEMSON, SC 29633-0773
PO BOX 774, CLEMSON, SC 29633-0774
PO BOX 775, CLEMSON, SC 29633-0775
PO BOX 776, CLEMSON, SC 29633-0776
PO BOX 777, CLEMSON, SC 29633-0777
PO BOX 778, CLEMSON, SC 29633-0778
PO BOX 779, CLEMSON, SC 29633-0779
PO BOX 780, CLEMSON, SC 29633-0780
PO BOX 781, CLEMSON, SC 29633-0781
PO BOX 782, CLEMSON, SC 29633-0782
PO BOX 783, CLEMSON, SC 29633-0783
PO BOX 784, CLEMSON, SC 29633-0784
PO BOX 785, CLEMSON, SC 29633-0785
PO BOX 786, CLEMSON, SC 29633-0786
PO BOX 787, CLEMSON, SC 29633-0787
PO BOX 788, CLEMSON, SC 29633-0788
PO BOX 789, CLEMSON, SC 29633-0789
PO BOX 790, CLEMSON, SC 29633-0790
PO BOX 791, CLEMSON, SC 29633-0791
PO BOX 792, CLEMSON, SC 29633-0792
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