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 661, SAND SPRINGS, OK 74063-0661
PO BOX 662, SAND SPRINGS, OK 74063-0662
PO BOX 663, SAND SPRINGS, OK 74063-0663
PO BOX 664, SAND SPRINGS, OK 74063-0664
PO BOX 665, SAND SPRINGS, OK 74063-0665
PO BOX 666, SAND SPRINGS, OK 74063-0666
PO BOX 667, SAND SPRINGS, OK 74063-0667
PO BOX 668, SAND SPRINGS, OK 74063-0668
PO BOX 669, SAND SPRINGS, OK 74063-0669
PO BOX 670, SAND SPRINGS, OK 74063-0670
PO BOX 671, SAND SPRINGS, OK 74063-0671
PO BOX 672, SAND SPRINGS, OK 74063-0672
PO BOX 673, SAND SPRINGS, OK 74063-0673
PO BOX 674, SAND SPRINGS, OK 74063-0674
PO BOX 675, SAND SPRINGS, OK 74063-0675
PO BOX 676, SAND SPRINGS, OK 74063-0676
PO BOX 677, SAND SPRINGS, OK 74063-0677
PO BOX 678, SAND SPRINGS, OK 74063-0678
PO BOX 679, SAND SPRINGS, OK 74063-0679
PO BOX 680, SAND SPRINGS, OK 74063-0680
PO BOX 681, SAND SPRINGS, OK 74063-0681
PO BOX 682, SAND SPRINGS, OK 74063-0682
PO BOX 683, SAND SPRINGS, OK 74063-0683
PO BOX 684, SAND SPRINGS, OK 74063-0684
PO BOX 685, SAND SPRINGS, OK 74063-0685
PO BOX 686, SAND SPRINGS, OK 74063-0686
PO BOX 687, SAND SPRINGS, OK 74063-0687
PO BOX 688, SAND SPRINGS, OK 74063-0688
PO BOX 689, SAND SPRINGS, OK 74063-0689
PO BOX 690, SAND SPRINGS, OK 74063-0690
PO BOX 691, SAND SPRINGS, OK 74063-0691
PO BOX 692, SAND SPRINGS, OK 74063-0692
PO BOX 693, SAND SPRINGS, OK 74063-0693
PO BOX 694, SAND SPRINGS, OK 74063-0694
PO BOX 695, SAND SPRINGS, OK 74063-0695
PO BOX 696, SAND SPRINGS, OK 74063-0696
PO BOX 697, SAND SPRINGS, OK 74063-0697
PO BOX 698, SAND SPRINGS, OK 74063-0698
PO BOX 699, SAND SPRINGS, OK 74063-0699
PO BOX 700, SAND SPRINGS, OK 74063-0700
PO BOX 701, SAND SPRINGS, OK 74063-0701
PO BOX 702, SAND SPRINGS, OK 74063-0702
PO BOX 703, SAND SPRINGS, OK 74063-0703
PO BOX 704, SAND SPRINGS, OK 74063-0704
PO BOX 705, SAND SPRINGS, OK 74063-0705
PO BOX 706, SAND SPRINGS, OK 74063-0706
PO BOX 707, SAND SPRINGS, OK 74063-0707
PO BOX 708, SAND SPRINGS, OK 74063-0708
PO BOX 709, SAND SPRINGS, OK 74063-0709
PO BOX 710, SAND SPRINGS, OK 74063-0710
PO BOX 711, SAND SPRINGS, OK 74063-0711
PO BOX 712, SAND SPRINGS, OK 74063-0712
PO BOX 713, SAND SPRINGS, OK 74063-0713
PO BOX 714, SAND SPRINGS, OK 74063-0714
PO BOX 715, SAND SPRINGS, OK 74063-0715
PO BOX 716, SAND SPRINGS, OK 74063-0716
PO BOX 717, SAND SPRINGS, OK 74063-0717
PO BOX 718, SAND SPRINGS, OK 74063-0718
PO BOX 719, SAND SPRINGS, OK 74063-0719
PO BOX 720, SAND SPRINGS, OK 74063-0720
PO BOX 721, SAND SPRINGS, OK 74063-0721
PO BOX 722, SAND SPRINGS, OK 74063-0722
PO BOX 723, SAND SPRINGS, OK 74063-0723
PO BOX 724, SAND SPRINGS, OK 74063-0724
PO BOX 725, SAND SPRINGS, OK 74063-0725
PO BOX 726, SAND SPRINGS, OK 74063-0726
PO BOX 727, SAND SPRINGS, OK 74063-0727
PO BOX 728, SAND SPRINGS, OK 74063-0728
PO BOX 729, SAND SPRINGS, OK 74063-0729
PO BOX 730, SAND SPRINGS, OK 74063-0730
PO BOX 731, SAND SPRINGS, OK 74063-0731
PO BOX 732, SAND SPRINGS, OK 74063-0732
PO BOX 733, SAND SPRINGS, OK 74063-0733
PO BOX 734, SAND SPRINGS, OK 74063-0734
PO BOX 735, SAND SPRINGS, OK 74063-0735
PO BOX 736, SAND SPRINGS, OK 74063-0736
PO BOX 737, SAND SPRINGS, OK 74063-0737
PO BOX 738, SAND SPRINGS, OK 74063-0738
PO BOX 739, SAND SPRINGS, OK 74063-0739
PO BOX 740, SAND SPRINGS, OK 74063-0740
PO BOX 741, SAND SPRINGS, OK 74063-0741
PO BOX 742, SAND SPRINGS, OK 74063-0742
PO BOX 743, SAND SPRINGS, OK 74063-0743
PO BOX 744, SAND SPRINGS, OK 74063-0744
PO BOX 745, SAND SPRINGS, OK 74063-0745
PO BOX 746, SAND SPRINGS, OK 74063-0746
PO BOX 747, SAND SPRINGS, OK 74063-0747
PO BOX 748, SAND SPRINGS, OK 74063-0748
PO BOX 749, SAND SPRINGS, OK 74063-0749
PO BOX 750, SAND SPRINGS, OK 74063-0750
PO BOX 751, SAND SPRINGS, OK 74063-0751
PO BOX 752, SAND SPRINGS, OK 74063-0752
PO BOX 753, SAND SPRINGS, OK 74063-0753
PO BOX 754, SAND SPRINGS, OK 74063-0754
PO BOX 755, SAND SPRINGS, OK 74063-0755
PO BOX 756, SAND SPRINGS, OK 74063-0756
PO BOX 757, SAND SPRINGS, OK 74063-0757
PO BOX 758, SAND SPRINGS, OK 74063-0758
PO BOX 759, SAND SPRINGS, OK 74063-0759
PO BOX 760, SAND SPRINGS, OK 74063-0760
PO BOX 761, SAND SPRINGS, OK 74063-0761
PO BOX 762, SAND SPRINGS, OK 74063-0762
PO BOX 763, SAND SPRINGS, OK 74063-0763
PO BOX 764, SAND SPRINGS, OK 74063-0764
PO BOX 765, SAND SPRINGS, OK 74063-0765
PO BOX 766, SAND SPRINGS, OK 74063-0766
PO BOX 767, SAND SPRINGS, OK 74063-0767
PO BOX 768, SAND SPRINGS, OK 74063-0768
PO BOX 769, SAND SPRINGS, OK 74063-0769
PO BOX 770, SAND SPRINGS, OK 74063-0770
PO BOX 771, SAND SPRINGS, OK 74063-0771
PO BOX 772, SAND SPRINGS, OK 74063-0772
PO BOX 773, SAND SPRINGS, OK 74063-0773
PO BOX 774, SAND SPRINGS, OK 74063-0774
PO BOX 775, SAND SPRINGS, OK 74063-0775
PO BOX 776, SAND SPRINGS, OK 74063-0776
PO BOX 777, SAND SPRINGS, OK 74063-0777
PO BOX 778, SAND SPRINGS, OK 74063-0778
PO BOX 779, SAND SPRINGS, OK 74063-0779
PO BOX 780, SAND SPRINGS, OK 74063-0780
PO BOX 781, SAND SPRINGS, OK 74063-0781
PO BOX 782, SAND SPRINGS, OK 74063-0782
PO BOX 783, SAND SPRINGS, OK 74063-0783
PO BOX 784, SAND SPRINGS, OK 74063-0784
PO BOX 785, SAND SPRINGS, OK 74063-0785
PO BOX 786, SAND SPRINGS, OK 74063-0786
PO BOX 787, SAND SPRINGS, OK 74063-0787
PO BOX 788, SAND SPRINGS, OK 74063-0788
PO BOX 789, SAND SPRINGS, OK 74063-0789
PO BOX 790, SAND SPRINGS, OK 74063-0790
PO BOX 791, SAND SPRINGS, OK 74063-0791
PO BOX 792, SAND SPRINGS, OK 74063-0792
PO BOX 793, SAND SPRINGS, OK 74063-0793
PO BOX 794, SAND SPRINGS, OK 74063-0794
PO BOX 795, SAND SPRINGS, OK 74063-0795
PO BOX 796, SAND SPRINGS, OK 74063-0796
PO BOX 797, SAND SPRINGS, OK 74063-0797
PO BOX 798, SAND SPRINGS, OK 74063-0798
PO BOX 799, SAND SPRINGS, OK 74063-0799
PO BOX 800, SAND SPRINGS, OK 74063-0800
PO BOX 801, SAND SPRINGS, OK 74063-0801
PO BOX 802, SAND SPRINGS, OK 74063-0802
PO BOX 803, SAND SPRINGS, OK 74063-0803
PO BOX 804, SAND SPRINGS, OK 74063-0804
PO BOX 805, SAND SPRINGS, OK 74063-0805
PO BOX 806, SAND SPRINGS, OK 74063-0806
PO BOX 807, SAND SPRINGS, OK 74063-0807
PO BOX 808, SAND SPRINGS, OK 74063-0808
PO BOX 809, SAND SPRINGS, OK 74063-0809
PO BOX 810, SAND SPRINGS, OK 74063-0810
PO BOX 811, SAND SPRINGS, OK 74063-0811
PO BOX 812, SAND SPRINGS, OK 74063-0812
PO BOX 813, SAND SPRINGS, OK 74063-0813
PO BOX 814, SAND SPRINGS, OK 74063-0814
PO BOX 815, SAND SPRINGS, OK 74063-0815
PO BOX 816, SAND SPRINGS, OK 74063-0816
PO BOX 817, SAND SPRINGS, OK 74063-0817
PO BOX 818, SAND SPRINGS, OK 74063-0818
PO BOX 819, SAND SPRINGS, OK 74063-0819
PO BOX 820, SAND SPRINGS, OK 74063-0820
PO BOX 821, SAND SPRINGS, OK 74063-0821
PO BOX 822, SAND SPRINGS, OK 74063-0822
PO BOX 823, SAND SPRINGS, OK 74063-0823
PO BOX 824, SAND SPRINGS, OK 74063-0824
PO BOX 825, SAND SPRINGS, OK 74063-0825
PO BOX 826, SAND SPRINGS, OK 74063-0826
PO BOX 827, SAND SPRINGS, OK 74063-0827
PO BOX 828, SAND SPRINGS, OK 74063-0828
PO BOX 829, SAND SPRINGS, OK 74063-0829
PO BOX 830, SAND SPRINGS, OK 74063-0830
PO BOX 831, SAND SPRINGS, OK 74063-0831
PO BOX 832, SAND SPRINGS, OK 74063-0832
PO BOX 833, SAND SPRINGS, OK 74063-0833
PO BOX 834, SAND SPRINGS, OK 74063-0834
PO BOX 835, SAND SPRINGS, OK 74063-0835
PO BOX 836, SAND SPRINGS, OK 74063-0836
PO BOX 837, SAND SPRINGS, OK 74063-0837
PO BOX 838, SAND SPRINGS, OK 74063-0838
PO BOX 839, SAND SPRINGS, OK 74063-0839
PO BOX 840, SAND SPRINGS, OK 74063-0840
PO BOX 841, SAND SPRINGS, OK 74063-0841
PO BOX 842, SAND SPRINGS, OK 74063-0842
PO BOX 843, SAND SPRINGS, OK 74063-0843
PO BOX 844, SAND SPRINGS, OK 74063-0844
PO BOX 845, SAND SPRINGS, OK 74063-0845
PO BOX 846, SAND SPRINGS, OK 74063-0846
PO BOX 847, SAND SPRINGS, OK 74063-0847
PO BOX 848, SAND SPRINGS, OK 74063-0848
PO BOX 849, SAND SPRINGS, OK 74063-0849
PO BOX 850, SAND SPRINGS, OK 74063-0850
PO BOX 851, SAND SPRINGS, OK 74063-0851
PO BOX 852, SAND SPRINGS, OK 74063-0852
PO BOX 853, SAND SPRINGS, OK 74063-0853
PO BOX 854, SAND SPRINGS, OK 74063-0854
PO BOX 855, SAND SPRINGS, OK 74063-0855
PO BOX 856, SAND SPRINGS, OK 74063-0856
PO BOX 857, SAND SPRINGS, OK 74063-0857
PO BOX 858, SAND SPRINGS, OK 74063-0858
PO BOX 859, SAND SPRINGS, OK 74063-0859
PO BOX 860, SAND SPRINGS, OK 74063-0860
PO BOX 861, SAND SPRINGS, OK 74063-0861
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