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 821, LEBANON, TN 37088-0821
PO BOX 822, LEBANON, TN 37088-0822
PO BOX 823, LEBANON, TN 37088-0823
PO BOX 824, LEBANON, TN 37088-0824
PO BOX 825, LEBANON, TN 37088-0825
PO BOX 826, LEBANON, TN 37088-0826
PO BOX 827, LEBANON, TN 37088-0827
PO BOX 828, LEBANON, TN 37088-0828
PO BOX 829, LEBANON, TN 37088-0829
PO BOX 830, LEBANON, TN 37088-0830
PO BOX 831, LEBANON, TN 37088-0831
PO BOX 832, LEBANON, TN 37088-0832
PO BOX 833, LEBANON, TN 37088-0833
PO BOX 834, LEBANON, TN 37088-0834
PO BOX 835, LEBANON, TN 37088-0835
PO BOX 836, LEBANON, TN 37088-0836
PO BOX 837, LEBANON, TN 37088-0837
PO BOX 838, LEBANON, TN 37088-0838
PO BOX 839, LEBANON, TN 37088-0839
PO BOX 840, LEBANON, TN 37088-0840
PO BOX 841, LEBANON, TN 37088-0841
PO BOX 842, LEBANON, TN 37088-0842
PO BOX 843, LEBANON, TN 37088-0843
PO BOX 844, LEBANON, TN 37088-0844
PO BOX 845, LEBANON, TN 37088-0845
PO BOX 846, LEBANON, TN 37088-0846
PO BOX 847, LEBANON, TN 37088-0847
PO BOX 848, LEBANON, TN 37088-0848
PO BOX 849, LEBANON, TN 37088-0849
PO BOX 850, LEBANON, TN 37088-0850
PO BOX 851, LEBANON, TN 37088-0851
PO BOX 852, LEBANON, TN 37088-0852
PO BOX 853, LEBANON, TN 37088-0853
PO BOX 854, LEBANON, TN 37088-0854
PO BOX 855, LEBANON, TN 37088-0855
PO BOX 856, LEBANON, TN 37088-0856
PO BOX 857, LEBANON, TN 37088-0857
PO BOX 858, LEBANON, TN 37088-0858
PO BOX 859, LEBANON, TN 37088-0859
PO BOX 860, LEBANON, TN 37088-0860
PO BOX 861, LEBANON, TN 37088-0861
PO BOX 862, LEBANON, TN 37088-0862
PO BOX 863, LEBANON, TN 37088-0863
PO BOX 864, LEBANON, TN 37088-0864
PO BOX 865, LEBANON, TN 37088-0865
PO BOX 866, LEBANON, TN 37088-0866
PO BOX 867, LEBANON, TN 37088-0867
PO BOX 868, LEBANON, TN 37088-0868
PO BOX 869, LEBANON, TN 37088-0869
PO BOX 870, LEBANON, TN 37088-0870
PO BOX 871, LEBANON, TN 37088-0871
PO BOX 872, LEBANON, TN 37088-0872
PO BOX 873, LEBANON, TN 37088-0873
PO BOX 874, LEBANON, TN 37088-0874
PO BOX 875, LEBANON, TN 37088-0875
PO BOX 876, LEBANON, TN 37088-0876
PO BOX 877, LEBANON, TN 37088-0877
PO BOX 878, LEBANON, TN 37088-0878
PO BOX 879, LEBANON, TN 37088-0879
PO BOX 880, LEBANON, TN 37088-0880
PO BOX 881, LEBANON, TN 37088-0881
PO BOX 882, LEBANON, TN 37088-0882
PO BOX 883, LEBANON, TN 37088-0883
PO BOX 884, LEBANON, TN 37088-0884
PO BOX 885, LEBANON, TN 37088-0885
PO BOX 886, LEBANON, TN 37088-0886
PO BOX 887, LEBANON, TN 37088-0887
PO BOX 888, LEBANON, TN 37088-0888
PO BOX 889, LEBANON, TN 37088-0889
PO BOX 890, LEBANON, TN 37088-0890
PO BOX 891, LEBANON, TN 37088-0891
PO BOX 892, LEBANON, TN 37088-0892
PO BOX 893, LEBANON, TN 37088-0893
PO BOX 894, LEBANON, TN 37088-0894
PO BOX 895, LEBANON, TN 37088-0895
PO BOX 896, LEBANON, TN 37088-0896
PO BOX 897, LEBANON, TN 37088-0897
PO BOX 898, LEBANON, TN 37088-0898
PO BOX 899, LEBANON, TN 37088-0899
PO BOX 900, LEBANON, TN 37088-0900
PO BOX 901, LEBANON, TN 37088-0901
PO BOX 902, LEBANON, TN 37088-0902
PO BOX 903, LEBANON, TN 37088-0903
PO BOX 904, LEBANON, TN 37088-0904
PO BOX 905, LEBANON, TN 37088-0905
PO BOX 906, LEBANON, TN 37088-0906
PO BOX 907, LEBANON, TN 37088-0907
PO BOX 908, LEBANON, TN 37088-0908
PO BOX 909, LEBANON, TN 37088-0909
PO BOX 910, LEBANON, TN 37088-0910
PO BOX 911, LEBANON, TN 37088-0911
PO BOX 912, LEBANON, TN 37088-0912
PO BOX 913, LEBANON, TN 37088-0913
PO BOX 914, LEBANON, TN 37088-0914
PO BOX 915, LEBANON, TN 37088-0915
PO BOX 916, LEBANON, TN 37088-0916
PO BOX 917, LEBANON, TN 37088-0917
PO BOX 918, LEBANON, TN 37088-0918
PO BOX 919, LEBANON, TN 37088-0919
PO BOX 920, LEBANON, TN 37088-0920
PO BOX 921, LEBANON, TN 37088-0921
PO BOX 922, LEBANON, TN 37088-0922
PO BOX 923, LEBANON, TN 37088-0923
PO BOX 924, LEBANON, TN 37088-0924
PO BOX 925, LEBANON, TN 37088-0925
PO BOX 926, LEBANON, TN 37088-0926
PO BOX 927, LEBANON, TN 37088-0927
PO BOX 928, LEBANON, TN 37088-0928
PO BOX 929, LEBANON, TN 37088-0929
PO BOX 930, LEBANON, TN 37088-0930
PO BOX 931, LEBANON, TN 37088-0931
PO BOX 932, LEBANON, TN 37088-0932
PO BOX 933, LEBANON, TN 37088-0933
PO BOX 934, LEBANON, TN 37088-0934
PO BOX 935, LEBANON, TN 37088-0935
PO BOX 936, LEBANON, TN 37088-0936
PO BOX 937, LEBANON, TN 37088-0937
PO BOX 938, LEBANON, TN 37088-0938
PO BOX 939, LEBANON, TN 37088-0939
PO BOX 940, LEBANON, TN 37088-0940
PO BOX 941, LEBANON, TN 37088-0941
PO BOX 942, LEBANON, TN 37088-0942
PO BOX 943, LEBANON, TN 37088-0943
PO BOX 944, LEBANON, TN 37088-0944
PO BOX 945, LEBANON, TN 37088-0945
PO BOX 946, LEBANON, TN 37088-0946
PO BOX 947, LEBANON, TN 37088-0947
PO BOX 948, LEBANON, TN 37088-0948
PO BOX 949, LEBANON, TN 37088-0949
PO BOX 950, LEBANON, TN 37088-0950
PO BOX 951, LEBANON, TN 37088-0951
PO BOX 952, LEBANON, TN 37088-0952
PO BOX 953, LEBANON, TN 37088-0953
PO BOX 954, LEBANON, TN 37088-0954
PO BOX 955, LEBANON, TN 37088-0955
PO BOX 956, LEBANON, TN 37088-0956
PO BOX 957, LEBANON, TN 37088-0957
PO BOX 958, LEBANON, TN 37088-0958
PO BOX 959, LEBANON, TN 37088-0959
PO BOX 960, LEBANON, TN 37088-0960
PO BOX 961, LEBANON, TN 37088-0961
PO BOX 962, LEBANON, TN 37088-0962
PO BOX 963, LEBANON, TN 37088-0963
PO BOX 964, LEBANON, TN 37088-0964
PO BOX 965, LEBANON, TN 37088-0965
PO BOX 966, LEBANON, TN 37088-0966
PO BOX 967, LEBANON, TN 37088-0967
PO BOX 968, LEBANON, TN 37088-0968
PO BOX 969, LEBANON, TN 37088-0969
PO BOX 970, LEBANON, TN 37088-0970
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