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 841, ELLSWORTH, WI 54011-0841
PO BOX 842, ELLSWORTH, WI 54011-0842
PO BOX 843, ELLSWORTH, WI 54011-0843
PO BOX 844, ELLSWORTH, WI 54011-0844
PO BOX 845, ELLSWORTH, WI 54011-0845
PO BOX 846, ELLSWORTH, WI 54011-0846
PO BOX 847, ELLSWORTH, WI 54011-0847
PO BOX 848, ELLSWORTH, WI 54011-0848
PO BOX 849, ELLSWORTH, WI 54011-0849
PO BOX 850, ELLSWORTH, WI 54011-0850
PO BOX 851, ELLSWORTH, WI 54011-0851
PO BOX 852, ELLSWORTH, WI 54011-0852
PO BOX 853, ELLSWORTH, WI 54011-0853
PO BOX 854, ELLSWORTH, WI 54011-0854
PO BOX 855, ELLSWORTH, WI 54011-0855
PO BOX 856, ELLSWORTH, WI 54011-0856
PO BOX 857, ELLSWORTH, WI 54011-0857
PO BOX 858, ELLSWORTH, WI 54011-0858
PO BOX 859, ELLSWORTH, WI 54011-0859
PO BOX 860, ELLSWORTH, WI 54011-0860
PO BOX 861, ELLSWORTH, WI 54011-0861
PO BOX 862, ELLSWORTH, WI 54011-0862
PO BOX 863, ELLSWORTH, WI 54011-0863
PO BOX 864, ELLSWORTH, WI 54011-0864
PO BOX 865, ELLSWORTH, WI 54011-0865
PO BOX 866, ELLSWORTH, WI 54011-0866
PO BOX 867, ELLSWORTH, WI 54011-0867
PO BOX 868, ELLSWORTH, WI 54011-0868
PO BOX 869, ELLSWORTH, WI 54011-0869
PO BOX 870, ELLSWORTH, WI 54011-0870
PO BOX 871, ELLSWORTH, WI 54011-0871
PO BOX 872, ELLSWORTH, WI 54011-0872
PO BOX 873, ELLSWORTH, WI 54011-0873
PO BOX 874, ELLSWORTH, WI 54011-0874
PO BOX 875, ELLSWORTH, WI 54011-0875
PO BOX 876, ELLSWORTH, WI 54011-0876
PO BOX 877, ELLSWORTH, WI 54011-0877
PO BOX 878, ELLSWORTH, WI 54011-0878
PO BOX 879, ELLSWORTH, WI 54011-0879
PO BOX 880, ELLSWORTH, WI 54011-0880
PO BOX 881, ELLSWORTH, WI 54011-0881
PO BOX 882, ELLSWORTH, WI 54011-0882
PO BOX 883, ELLSWORTH, WI 54011-0883
PO BOX 884, ELLSWORTH, WI 54011-0884
PO BOX 885, ELLSWORTH, WI 54011-0885
PO BOX 886, ELLSWORTH, WI 54011-0886
PO BOX 887, ELLSWORTH, WI 54011-0887
PO BOX 888, ELLSWORTH, WI 54011-0888
PO BOX 889, ELLSWORTH, WI 54011-0889
PO BOX 890, ELLSWORTH, WI 54011-0890
PO BOX 891, ELLSWORTH, WI 54011-0891
PO BOX 892, ELLSWORTH, WI 54011-0892
PO BOX 893, ELLSWORTH, WI 54011-0893
PO BOX 894, ELLSWORTH, WI 54011-0894
PO BOX 895, ELLSWORTH, WI 54011-0895
PO BOX 896, ELLSWORTH, WI 54011-0896
PO BOX 897, ELLSWORTH, WI 54011-0897
PO BOX 898, ELLSWORTH, WI 54011-0898
PO BOX 899, ELLSWORTH, WI 54011-0899
PO BOX 900, ELLSWORTH, WI 54011-0900
PO BOX 901, ELLSWORTH, WI 54011-0901
PO BOX 902, ELLSWORTH, WI 54011-0902
PO BOX 903, ELLSWORTH, WI 54011-0903
PO BOX 904, ELLSWORTH, WI 54011-0904
PO BOX 905, ELLSWORTH, WI 54011-0905
PO BOX 906, ELLSWORTH, WI 54011-0906
PO BOX 907, ELLSWORTH, WI 54011-0907
PO BOX 908, ELLSWORTH, WI 54011-0908
PO BOX 909, ELLSWORTH, WI 54011-0909
PO BOX 910, ELLSWORTH, WI 54011-0910
PO BOX 911, ELLSWORTH, WI 54011-0911
PO BOX 912, ELLSWORTH, WI 54011-0912
PO BOX 913, ELLSWORTH, WI 54011-0913
PO BOX 914, ELLSWORTH, WI 54011-0914
PO BOX 915, ELLSWORTH, WI 54011-0915
PO BOX 916, ELLSWORTH, WI 54011-0916
PO BOX 917, ELLSWORTH, WI 54011-0917
PO BOX 918, ELLSWORTH, WI 54011-0918
PO BOX 919, ELLSWORTH, WI 54011-0919
PO BOX 920, ELLSWORTH, WI 54011-0920
PO BOX 921, ELLSWORTH, WI 54011-0921
PO BOX 922, ELLSWORTH, WI 54011-0922
PO BOX 923, ELLSWORTH, WI 54011-0923
PO BOX 924, ELLSWORTH, WI 54011-0924
PO BOX 925, ELLSWORTH, WI 54011-0925
PO BOX 926, ELLSWORTH, WI 54011-0926
PO BOX 927, ELLSWORTH, WI 54011-0927
PO BOX 928, ELLSWORTH, WI 54011-0928
PO BOX 929, ELLSWORTH, WI 54011-0929
PO BOX 930, ELLSWORTH, WI 54011-0930
PO BOX 931, ELLSWORTH, WI 54011-0931
PO BOX 932, ELLSWORTH, WI 54011-0932
PO BOX 933, ELLSWORTH, WI 54011-0933
PO BOX 934, ELLSWORTH, WI 54011-0934
PO BOX 935, ELLSWORTH, WI 54011-0935
PO BOX 936, ELLSWORTH, WI 54011-0936
PO BOX 937, ELLSWORTH, WI 54011-0937
PO BOX 938, ELLSWORTH, WI 54011-0938
PO BOX 939, ELLSWORTH, WI 54011-0939
PO BOX 940, ELLSWORTH, WI 54011-0940
PO BOX 941, ELLSWORTH, WI 54011-0941
PO BOX 942, ELLSWORTH, WI 54011-0942
PO BOX 943, ELLSWORTH, WI 54011-0943
PO BOX 944, ELLSWORTH, WI 54011-0944
PO BOX 945, ELLSWORTH, WI 54011-0945
PO BOX 946, ELLSWORTH, WI 54011-0946
PO BOX 947, ELLSWORTH, WI 54011-0947
PO BOX 948, ELLSWORTH, WI 54011-0948
PO BOX 949, ELLSWORTH, WI 54011-0949
PO BOX 950, ELLSWORTH, WI 54011-0950
PO BOX 951, ELLSWORTH, WI 54011-0951
PO BOX 952, ELLSWORTH, WI 54011-0952
PO BOX 953, ELLSWORTH, WI 54011-0953
PO BOX 954, ELLSWORTH, WI 54011-0954
PO BOX 955, ELLSWORTH, WI 54011-0955
PO BOX 956, ELLSWORTH, WI 54011-0956
PO BOX 957, ELLSWORTH, WI 54011-0957
PO BOX 958, ELLSWORTH, WI 54011-0958
PO BOX 959, ELLSWORTH, WI 54011-0959
PO BOX 960, ELLSWORTH, WI 54011-0960
PO BOX 961, ELLSWORTH, WI 54011-0961
PO BOX 962, ELLSWORTH, WI 54011-0962
PO BOX 963, ELLSWORTH, WI 54011-0963
PO BOX 964, ELLSWORTH, WI 54011-0964
PO BOX 965, ELLSWORTH, WI 54011-0965
PO BOX 966, ELLSWORTH, WI 54011-0966
PO BOX 967, ELLSWORTH, WI 54011-0967
PO BOX 968, ELLSWORTH, WI 54011-0968
PO BOX 969, ELLSWORTH, WI 54011-0969
PO BOX 970, ELLSWORTH, WI 54011-0970
PO BOX 971, ELLSWORTH, WI 54011-0971
PO BOX 972, ELLSWORTH, WI 54011-0972
PO BOX 973, ELLSWORTH, WI 54011-0973
PO BOX 974, ELLSWORTH, WI 54011-0974
PO BOX 975, ELLSWORTH, WI 54011-0975
PO BOX 976, ELLSWORTH, WI 54011-0976
PO BOX 977, ELLSWORTH, WI 54011-0977
PO BOX 978, ELLSWORTH, WI 54011-0978
PO BOX 979, ELLSWORTH, WI 54011-0979
PO BOX 980, ELLSWORTH, WI 54011-0980
PO BOX 981, ELLSWORTH, WI 54011-0981
PO BOX 982, ELLSWORTH, WI 54011-0982
PO BOX 983, ELLSWORTH, WI 54011-0983
PO BOX 984, ELLSWORTH, WI 54011-0984
PO BOX 985, ELLSWORTH, WI 54011-0985
PO BOX 986, ELLSWORTH, WI 54011-0986
PO BOX 987, ELLSWORTH, WI 54011-0987
PO BOX 988, ELLSWORTH, WI 54011-0988
PO BOX 989, ELLSWORTH, WI 54011-0989
PO BOX 990, ELLSWORTH, WI 54011-0990
PO BOX 991, ELLSWORTH, WI 54011-0991
PO BOX 992, ELLSWORTH, WI 54011-0992
PO BOX 993, ELLSWORTH, WI 54011-0993
PO BOX 994, ELLSWORTH, WI 54011-0994
PO BOX 995, ELLSWORTH, WI 54011-0995
PO BOX 996, ELLSWORTH, WI 54011-0996
PO BOX 997, ELLSWORTH, WI 54011-0997
PO BOX 998, ELLSWORTH, WI 54011-0998
PO BOX 999, ELLSWORTH, WI 54011-0999
PO BOX 1000, ELLSWORTH, WI 54011-1000
PO BOX 1001, ELLSWORTH, WI 54011-1001
PO BOX 1002, ELLSWORTH, WI 54011-1002
PO BOX 1003, ELLSWORTH, WI 54011-1003
PO BOX 1004, ELLSWORTH, WI 54011-1004
PO BOX 1005, ELLSWORTH, WI 54011-1005
PO BOX 1006, ELLSWORTH, WI 54011-1006
PO BOX 1007, ELLSWORTH, WI 54011-1007
PO BOX 1008, ELLSWORTH, WI 54011-1008
PO BOX 1009, ELLSWORTH, WI 54011-1009
PO BOX 1010, ELLSWORTH, WI 54011-1010
PO BOX 1011, ELLSWORTH, WI 54011-1011
PO BOX 1012, ELLSWORTH, WI 54011-1012
PO BOX 1013, ELLSWORTH, WI 54011-1013
PO BOX 1014, ELLSWORTH, WI 54011-1014
PO BOX 1015, ELLSWORTH, WI 54011-1015
PO BOX 1016, ELLSWORTH, WI 54011-1016
PO BOX 1017, ELLSWORTH, WI 54011-1017
PO BOX 1018, ELLSWORTH, WI 54011-1018
PO BOX 1019, ELLSWORTH, WI 54011-1019
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