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 620, SHAWNEE, OK 74802-0620
PO BOX 621, SHAWNEE, OK 74802-0621
PO BOX 622, SHAWNEE, OK 74802-0622
PO BOX 623, SHAWNEE, OK 74802-0623
PO BOX 624, SHAWNEE, OK 74802-0624
PO BOX 625, SHAWNEE, OK 74802-0625
PO BOX 626, SHAWNEE, OK 74802-0626
PO BOX 627, SHAWNEE, OK 74802-0627
PO BOX 628, SHAWNEE, OK 74802-0628
PO BOX 629, SHAWNEE, OK 74802-0629
PO BOX 630, SHAWNEE, OK 74802-0630
PO BOX 631, SHAWNEE, OK 74802-0631
PO BOX 632, SHAWNEE, OK 74802-0632
PO BOX 633, SHAWNEE, OK 74802-0633
PO BOX 634, SHAWNEE, OK 74802-0634
PO BOX 635, SHAWNEE, OK 74802-0635
PO BOX 636, SHAWNEE, OK 74802-0636
PO BOX 637, SHAWNEE, OK 74802-0637
PO BOX 638, SHAWNEE, OK 74802-0638
PO BOX 639, SHAWNEE, OK 74802-0639
PO BOX 640, SHAWNEE, OK 74802-0640
PO BOX 641, SHAWNEE, OK 74802-0641
PO BOX 642, SHAWNEE, OK 74802-0642
PO BOX 643, SHAWNEE, OK 74802-0643
PO BOX 644, SHAWNEE, OK 74802-0644
PO BOX 645, SHAWNEE, OK 74802-0645
PO BOX 646, SHAWNEE, OK 74802-0646
PO BOX 647, SHAWNEE, OK 74802-0647
PO BOX 648, SHAWNEE, OK 74802-0648
PO BOX 649, SHAWNEE, OK 74802-0649
PO BOX 650, SHAWNEE, OK 74802-0650
PO BOX 651, SHAWNEE, OK 74802-0651
PO BOX 652, SHAWNEE, OK 74802-0652
PO BOX 653, SHAWNEE, OK 74802-0653
PO BOX 654, SHAWNEE, OK 74802-0654
PO BOX 655, SHAWNEE, OK 74802-0655
PO BOX 656, SHAWNEE, OK 74802-0656
PO BOX 657, SHAWNEE, OK 74802-0657
PO BOX 658, SHAWNEE, OK 74802-0658
PO BOX 659, SHAWNEE, OK 74802-0659
PO BOX 660, SHAWNEE, OK 74802-0660
PO BOX 661, SHAWNEE, OK 74802-0661
PO BOX 662, SHAWNEE, OK 74802-0662
PO BOX 663, SHAWNEE, OK 74802-0663
PO BOX 664, SHAWNEE, OK 74802-0664
PO BOX 665, SHAWNEE, OK 74802-0665
PO BOX 666, SHAWNEE, OK 74802-0666
PO BOX 667, SHAWNEE, OK 74802-0667
PO BOX 668, SHAWNEE, OK 74802-0668
PO BOX 669, SHAWNEE, OK 74802-0669
PO BOX 670, SHAWNEE, OK 74802-0670
PO BOX 671, SHAWNEE, OK 74802-0671
PO BOX 672, SHAWNEE, OK 74802-0672
PO BOX 673, SHAWNEE, OK 74802-0673
PO BOX 674, SHAWNEE, OK 74802-0674
PO BOX 675, SHAWNEE, OK 74802-0675
PO BOX 676, SHAWNEE, OK 74802-0676
PO BOX 677, SHAWNEE, OK 74802-0677
PO BOX 678, SHAWNEE, OK 74802-0678
PO BOX 679, SHAWNEE, OK 74802-0679
PO BOX 680, SHAWNEE, OK 74802-0680
PO BOX 681, SHAWNEE, OK 74802-0681
PO BOX 682, SHAWNEE, OK 74802-0682
PO BOX 683, SHAWNEE, OK 74802-0683
PO BOX 684, SHAWNEE, OK 74802-0684
PO BOX 685, SHAWNEE, OK 74802-0685
PO BOX 686, SHAWNEE, OK 74802-0686
PO BOX 687, SHAWNEE, OK 74802-0687
PO BOX 688, SHAWNEE, OK 74802-0688
PO BOX 689, SHAWNEE, OK 74802-0689
PO BOX 690, SHAWNEE, OK 74802-0690
PO BOX 691, SHAWNEE, OK 74802-0691
PO BOX 692, SHAWNEE, OK 74802-0692
PO BOX 693, SHAWNEE, OK 74802-0693
PO BOX 694, SHAWNEE, OK 74802-0694
PO BOX 695, SHAWNEE, OK 74802-0695
PO BOX 696, SHAWNEE, OK 74802-0696
PO BOX 697, SHAWNEE, OK 74802-0697
PO BOX 698, SHAWNEE, OK 74802-0698
PO BOX 699, SHAWNEE, OK 74802-0699
PO BOX 700, SHAWNEE, OK 74802-0700
PO BOX 701, SHAWNEE, OK 74802-0701
PO BOX 702, SHAWNEE, OK 74802-0702
PO BOX 703, SHAWNEE, OK 74802-0703
PO BOX 704, SHAWNEE, OK 74802-0704
PO BOX 705, SHAWNEE, OK 74802-0705
PO BOX 706, SHAWNEE, OK 74802-0706
PO BOX 707, SHAWNEE, OK 74802-0707
PO BOX 708, SHAWNEE, OK 74802-0708
PO BOX 709, SHAWNEE, OK 74802-0709
PO BOX 710, SHAWNEE, OK 74802-0710
PO BOX 711, SHAWNEE, OK 74802-0711
PO BOX 712, SHAWNEE, OK 74802-0712
PO BOX 713, SHAWNEE, OK 74802-0713
PO BOX 714, SHAWNEE, OK 74802-0714
PO BOX 715, SHAWNEE, OK 74802-0715
PO BOX 716, SHAWNEE, OK 74802-0716
PO BOX 717, SHAWNEE, OK 74802-0717
PO BOX 718, SHAWNEE, OK 74802-0718
PO BOX 719, SHAWNEE, OK 74802-0719
PO BOX 720, SHAWNEE, OK 74802-0720
PO BOX 721, SHAWNEE, OK 74802-0721
PO BOX 722, SHAWNEE, OK 74802-0722
PO BOX 723, SHAWNEE, OK 74802-0723
PO BOX 724, SHAWNEE, OK 74802-0724
PO BOX 725, SHAWNEE, OK 74802-0725
PO BOX 726, SHAWNEE, OK 74802-0726
PO BOX 727, SHAWNEE, OK 74802-0727
PO BOX 728, SHAWNEE, OK 74802-0728
PO BOX 729, SHAWNEE, OK 74802-0729
PO BOX 730, SHAWNEE, OK 74802-0730
PO BOX 731, SHAWNEE, OK 74802-0731
PO BOX 732, SHAWNEE, OK 74802-0732
PO BOX 733, SHAWNEE, OK 74802-0733
PO BOX 734, SHAWNEE, OK 74802-0734
PO BOX 735, SHAWNEE, OK 74802-0735
PO BOX 736, SHAWNEE, OK 74802-0736
PO BOX 737, SHAWNEE, OK 74802-0737
PO BOX 738, SHAWNEE, OK 74802-0738
PO BOX 739, SHAWNEE, OK 74802-0739
PO BOX 740, SHAWNEE, OK 74802-0740
PO BOX 741, SHAWNEE, OK 74802-0741
PO BOX 742, SHAWNEE, OK 74802-0742
PO BOX 743, SHAWNEE, OK 74802-0743
PO BOX 744, SHAWNEE, OK 74802-0744
PO BOX 745, SHAWNEE, OK 74802-0745
PO BOX 746, SHAWNEE, OK 74802-0746
PO BOX 747, SHAWNEE, OK 74802-0747
PO BOX 748, SHAWNEE, OK 74802-0748
PO BOX 749, SHAWNEE, OK 74802-0749
PO BOX 750, SHAWNEE, OK 74802-0750
PO BOX 751, SHAWNEE, OK 74802-0751
PO BOX 752, SHAWNEE, OK 74802-0752
PO BOX 753, SHAWNEE, OK 74802-0753
PO BOX 754, SHAWNEE, OK 74802-0754
PO BOX 755, SHAWNEE, OK 74802-0755
PO BOX 756, SHAWNEE, OK 74802-0756
PO BOX 757, SHAWNEE, OK 74802-0757
PO BOX 758, SHAWNEE, OK 74802-0758
PO BOX 759, SHAWNEE, OK 74802-0759
PO BOX 760, SHAWNEE, OK 74802-0760
PO BOX 761, SHAWNEE, OK 74802-0761
PO BOX 762, SHAWNEE, OK 74802-0762
PO BOX 763, SHAWNEE, OK 74802-0763
PO BOX 764, SHAWNEE, OK 74802-0764
PO BOX 765, SHAWNEE, OK 74802-0765
PO BOX 766, SHAWNEE, OK 74802-0766
PO BOX 767, SHAWNEE, OK 74802-0767
PO BOX 768, SHAWNEE, OK 74802-0768
PO BOX 769, SHAWNEE, OK 74802-0769
PO BOX 770, SHAWNEE, OK 74802-0770
PO BOX 771, SHAWNEE, OK 74802-0771
PO BOX 772, SHAWNEE, OK 74802-0772
PO BOX 773, SHAWNEE, OK 74802-0773
PO BOX 774, SHAWNEE, OK 74802-0774
PO BOX 775, SHAWNEE, OK 74802-0775
PO BOX 776, SHAWNEE, OK 74802-0776
PO BOX 777, SHAWNEE, OK 74802-0777
PO BOX 778, SHAWNEE, OK 74802-0778
PO BOX 779, SHAWNEE, OK 74802-0779
PO BOX 780, SHAWNEE, OK 74802-0780
PO BOX 781, SHAWNEE, OK 74802-0781
PO BOX 782, SHAWNEE, OK 74802-0782
PO BOX 783, SHAWNEE, OK 74802-0783
PO BOX 784, SHAWNEE, OK 74802-0784
PO BOX 785, SHAWNEE, OK 74802-0785
PO BOX 786, SHAWNEE, OK 74802-0786
PO BOX 787, SHAWNEE, OK 74802-0787
PO BOX 788, SHAWNEE, OK 74802-0788
PO BOX 789, SHAWNEE, OK 74802-0789
PO BOX 790, SHAWNEE, OK 74802-0790
PO BOX 791, SHAWNEE, OK 74802-0791
PO BOX 792, SHAWNEE, OK 74802-0792
PO BOX 793, SHAWNEE, OK 74802-0793
PO BOX 794, SHAWNEE, OK 74802-0794
PO BOX 795, SHAWNEE, OK 74802-0795
PO BOX 796, SHAWNEE, OK 74802-0796
PO BOX 797, SHAWNEE, OK 74802-0797
PO BOX 798, SHAWNEE, OK 74802-0798
PO BOX 799, SHAWNEE, OK 74802-0799
PO BOX 800, SHAWNEE, OK 74802-0800
PO BOX 801, SHAWNEE, OK 74802-0801
PO BOX 802, SHAWNEE, OK 74802-0802
PO BOX 803, SHAWNEE, OK 74802-0803
PO BOX 804, SHAWNEE, OK 74802-0804
PO BOX 805, SHAWNEE, OK 74802-0805
PO BOX 806, SHAWNEE, OK 74802-0806
PO BOX 807, SHAWNEE, OK 74802-0807
PO BOX 808, SHAWNEE, OK 74802-0808