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, BRECKENRIDGE, TX 76424-0681
PO BOX 682, BRECKENRIDGE, TX 76424-0682
PO BOX 683, BRECKENRIDGE, TX 76424-0683
PO BOX 684, BRECKENRIDGE, TX 76424-0684
PO BOX 685, BRECKENRIDGE, TX 76424-0685
PO BOX 686, BRECKENRIDGE, TX 76424-0686
PO BOX 687, BRECKENRIDGE, TX 76424-0687
PO BOX 688, BRECKENRIDGE, TX 76424-0688
PO BOX 689, BRECKENRIDGE, TX 76424-0689
PO BOX 690, BRECKENRIDGE, TX 76424-0690
PO BOX 691, BRECKENRIDGE, TX 76424-0691
PO BOX 692, BRECKENRIDGE, TX 76424-0692
PO BOX 693, BRECKENRIDGE, TX 76424-0693
PO BOX 694, BRECKENRIDGE, TX 76424-0694
PO BOX 695, BRECKENRIDGE, TX 76424-0695
PO BOX 696, BRECKENRIDGE, TX 76424-0696
PO BOX 697, BRECKENRIDGE, TX 76424-0697
PO BOX 698, BRECKENRIDGE, TX 76424-0698
PO BOX 699, BRECKENRIDGE, TX 76424-0699
PO BOX 700, BRECKENRIDGE, TX 76424-0700
PO BOX 701, BRECKENRIDGE, TX 76424-0701
PO BOX 702, BRECKENRIDGE, TX 76424-0702
PO BOX 703, BRECKENRIDGE, TX 76424-0703
PO BOX 704, BRECKENRIDGE, TX 76424-0704
PO BOX 705, BRECKENRIDGE, TX 76424-0705
PO BOX 706, BRECKENRIDGE, TX 76424-0706
PO BOX 707, BRECKENRIDGE, TX 76424-0707
PO BOX 708, BRECKENRIDGE, TX 76424-0708
PO BOX 709, BRECKENRIDGE, TX 76424-0709
PO BOX 710, BRECKENRIDGE, TX 76424-0710
PO BOX 711, BRECKENRIDGE, TX 76424-0711
PO BOX 712, BRECKENRIDGE, TX 76424-0712
PO BOX 713, BRECKENRIDGE, TX 76424-0713
PO BOX 714, BRECKENRIDGE, TX 76424-0714
PO BOX 715, BRECKENRIDGE, TX 76424-0715
PO BOX 716, BRECKENRIDGE, TX 76424-0716
PO BOX 717, BRECKENRIDGE, TX 76424-0717
PO BOX 718, BRECKENRIDGE, TX 76424-0718
PO BOX 719, BRECKENRIDGE, TX 76424-0719
PO BOX 720, BRECKENRIDGE, TX 76424-0720
PO BOX 721, BRECKENRIDGE, TX 76424-0721
PO BOX 722, BRECKENRIDGE, TX 76424-0722
PO BOX 723, BRECKENRIDGE, TX 76424-0723
PO BOX 724, BRECKENRIDGE, TX 76424-0724
PO BOX 725, BRECKENRIDGE, TX 76424-0725
PO BOX 726, BRECKENRIDGE, TX 76424-0726
PO BOX 727, BRECKENRIDGE, TX 76424-0727
PO BOX 728, BRECKENRIDGE, TX 76424-0728
PO BOX 729, BRECKENRIDGE, TX 76424-0729
PO BOX 730, BRECKENRIDGE, TX 76424-0730
PO BOX 731, BRECKENRIDGE, TX 76424-0731
PO BOX 732, BRECKENRIDGE, TX 76424-0732
PO BOX 733, BRECKENRIDGE, TX 76424-0733
PO BOX 734, BRECKENRIDGE, TX 76424-0734
PO BOX 735, BRECKENRIDGE, TX 76424-0735
PO BOX 736, BRECKENRIDGE, TX 76424-0736
PO BOX 737, BRECKENRIDGE, TX 76424-0737
PO BOX 738, BRECKENRIDGE, TX 76424-0738
PO BOX 739, BRECKENRIDGE, TX 76424-0739
PO BOX 740, BRECKENRIDGE, TX 76424-0740
PO BOX 741, BRECKENRIDGE, TX 76424-0741
PO BOX 742, BRECKENRIDGE, TX 76424-0742
PO BOX 743, BRECKENRIDGE, TX 76424-0743
PO BOX 744, BRECKENRIDGE, TX 76424-0744
PO BOX 745, BRECKENRIDGE, TX 76424-0745
PO BOX 746, BRECKENRIDGE, TX 76424-0746
PO BOX 747, BRECKENRIDGE, TX 76424-0747
PO BOX 748, BRECKENRIDGE, TX 76424-0748
PO BOX 749, BRECKENRIDGE, TX 76424-0749
PO BOX 750, BRECKENRIDGE, TX 76424-0750
PO BOX 751, BRECKENRIDGE, TX 76424-0751
PO BOX 752, BRECKENRIDGE, TX 76424-0752
PO BOX 753, BRECKENRIDGE, TX 76424-0753
PO BOX 754, BRECKENRIDGE, TX 76424-0754
PO BOX 755, BRECKENRIDGE, TX 76424-0755
PO BOX 756, BRECKENRIDGE, TX 76424-0756
PO BOX 757, BRECKENRIDGE, TX 76424-0757
PO BOX 758, BRECKENRIDGE, TX 76424-0758
PO BOX 759, BRECKENRIDGE, TX 76424-0759
PO BOX 760, BRECKENRIDGE, TX 76424-0760
PO BOX 761, BRECKENRIDGE, TX 76424-0761
PO BOX 762, BRECKENRIDGE, TX 76424-0762
PO BOX 763, BRECKENRIDGE, TX 76424-0763
PO BOX 764, BRECKENRIDGE, TX 76424-0764
PO BOX 765, BRECKENRIDGE, TX 76424-0765
PO BOX 766, BRECKENRIDGE, TX 76424-0766
PO BOX 767, BRECKENRIDGE, TX 76424-0767
PO BOX 768, BRECKENRIDGE, TX 76424-0768
PO BOX 769, BRECKENRIDGE, TX 76424-0769
PO BOX 770, BRECKENRIDGE, TX 76424-0770
PO BOX 771, BRECKENRIDGE, TX 76424-0771
PO BOX 772, BRECKENRIDGE, TX 76424-0772
PO BOX 773, BRECKENRIDGE, TX 76424-0773
PO BOX 774, BRECKENRIDGE, TX 76424-0774
PO BOX 775, BRECKENRIDGE, TX 76424-0775
PO BOX 776, BRECKENRIDGE, TX 76424-0776
PO BOX 777, BRECKENRIDGE, TX 76424-0777
PO BOX 778, BRECKENRIDGE, TX 76424-0778
PO BOX 779, BRECKENRIDGE, TX 76424-0779
PO BOX 780, BRECKENRIDGE, TX 76424-0780
PO BOX 781, BRECKENRIDGE, TX 76424-0781
PO BOX 782, BRECKENRIDGE, TX 76424-0782
PO BOX 783, BRECKENRIDGE, TX 76424-0783
PO BOX 784, BRECKENRIDGE, TX 76424-0784
PO BOX 785, BRECKENRIDGE, TX 76424-0785
PO BOX 786, BRECKENRIDGE, TX 76424-0786
PO BOX 787, BRECKENRIDGE, TX 76424-0787
PO BOX 788, BRECKENRIDGE, TX 76424-0788
PO BOX 789, BRECKENRIDGE, TX 76424-0789
PO BOX 790, BRECKENRIDGE, TX 76424-0790
PO BOX 791, BRECKENRIDGE, TX 76424-0791
PO BOX 792, BRECKENRIDGE, TX 76424-0792
PO BOX 793, BRECKENRIDGE, TX 76424-0793
PO BOX 794, BRECKENRIDGE, TX 76424-0794
PO BOX 795, BRECKENRIDGE, TX 76424-0795
PO BOX 796, BRECKENRIDGE, TX 76424-0796
PO BOX 797, BRECKENRIDGE, TX 76424-0797
PO BOX 798, BRECKENRIDGE, TX 76424-0798
PO BOX 799, BRECKENRIDGE, TX 76424-0799
PO BOX 800, BRECKENRIDGE, TX 76424-0800
PO BOX 801, BRECKENRIDGE, TX 76424-0801
PO BOX 802, BRECKENRIDGE, TX 76424-0802
PO BOX 803, BRECKENRIDGE, TX 76424-0803
PO BOX 804, BRECKENRIDGE, TX 76424-0804
PO BOX 805, BRECKENRIDGE, TX 76424-0805
PO BOX 806, BRECKENRIDGE, TX 76424-0806
PO BOX 807, BRECKENRIDGE, TX 76424-0807
PO BOX 808, BRECKENRIDGE, TX 76424-0808
PO BOX 809, BRECKENRIDGE, TX 76424-0809
PO BOX 810, BRECKENRIDGE, TX 76424-0810
PO BOX 811, BRECKENRIDGE, TX 76424-0811
PO BOX 812, BRECKENRIDGE, TX 76424-0812
PO BOX 813, BRECKENRIDGE, TX 76424-0813
PO BOX 814, BRECKENRIDGE, TX 76424-0814
PO BOX 815, BRECKENRIDGE, TX 76424-0815
PO BOX 816, BRECKENRIDGE, TX 76424-0816
PO BOX 817, BRECKENRIDGE, TX 76424-0817
PO BOX 818, BRECKENRIDGE, TX 76424-0818
PO BOX 819, BRECKENRIDGE, TX 76424-0819
PO BOX 820, BRECKENRIDGE, TX 76424-0820
PO BOX 821, BRECKENRIDGE, TX 76424-0821
PO BOX 822, BRECKENRIDGE, TX 76424-0822
PO BOX 823, BRECKENRIDGE, TX 76424-0823
PO BOX 824, BRECKENRIDGE, TX 76424-0824
PO BOX 825, BRECKENRIDGE, TX 76424-0825
PO BOX 826, BRECKENRIDGE, TX 76424-0826
PO BOX 827, BRECKENRIDGE, TX 76424-0827
PO BOX 828, BRECKENRIDGE, TX 76424-0828
PO BOX 829, BRECKENRIDGE, TX 76424-0829
PO BOX 830, BRECKENRIDGE, TX 76424-0830
PO BOX 831, BRECKENRIDGE, TX 76424-0831
PO BOX 832, BRECKENRIDGE, TX 76424-0832
PO BOX 833, BRECKENRIDGE, TX 76424-0833
PO BOX 834, BRECKENRIDGE, TX 76424-0834
PO BOX 835, BRECKENRIDGE, TX 76424-0835
PO BOX 836, BRECKENRIDGE, TX 76424-0836
PO BOX 837, BRECKENRIDGE, TX 76424-0837
PO BOX 838, BRECKENRIDGE, TX 76424-0838
PO BOX 839, BRECKENRIDGE, TX 76424-0839
PO BOX 840, BRECKENRIDGE, TX 76424-0840
PO BOX 841, BRECKENRIDGE, TX 76424-0841
PO BOX 842, BRECKENRIDGE, TX 76424-0842
PO BOX 843, BRECKENRIDGE, TX 76424-0843
PO BOX 844, BRECKENRIDGE, TX 76424-0844
PO BOX 845, BRECKENRIDGE, TX 76424-0845
PO BOX 846, BRECKENRIDGE, TX 76424-0846
PO BOX 847, BRECKENRIDGE, TX 76424-0847
PO BOX 848, BRECKENRIDGE, TX 76424-0848
PO BOX 849, BRECKENRIDGE, TX 76424-0849
PO BOX 850, BRECKENRIDGE, TX 76424-0850
PO BOX 851, BRECKENRIDGE, TX 76424-0851
PO BOX 852, BRECKENRIDGE, TX 76424-0852
PO BOX 853, BRECKENRIDGE, TX 76424-0853
PO BOX 854, BRECKENRIDGE, TX 76424-0854
PO BOX 855, BRECKENRIDGE, TX 76424-0855
PO BOX 856, BRECKENRIDGE, TX 76424-0856
PO BOX 857, BRECKENRIDGE, TX 76424-0857
PO BOX 858, BRECKENRIDGE, TX 76424-0858
PO BOX 859, BRECKENRIDGE, TX 76424-0859
PO BOX 860, BRECKENRIDGE, TX 76424-0860
PO BOX 861, BRECKENRIDGE, TX 76424-0861
PO BOX 862, BRECKENRIDGE, TX 76424-0862
PO BOX 863, BRECKENRIDGE, TX 76424-0863
PO BOX 864, BRECKENRIDGE, TX 76424-0864
PO BOX 865, BRECKENRIDGE, TX 76424-0865
PO BOX 866, BRECKENRIDGE, TX 76424-0866
PO BOX 867, BRECKENRIDGE, TX 76424-0867
PO BOX 868, BRECKENRIDGE, TX 76424-0868
PO BOX 869, BRECKENRIDGE, TX 76424-0869
PO BOX 870, BRECKENRIDGE, TX 76424-0870
PO BOX 871, BRECKENRIDGE, TX 76424-0871
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