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 3851, LAKE WORTH, FL 33465-3851
PO BOX 3852, LAKE WORTH, FL 33465-3852
PO BOX 3853, LAKE WORTH, FL 33465-3853
PO BOX 3854, LAKE WORTH, FL 33465-3854
PO BOX 3855, LAKE WORTH, FL 33465-3855
PO BOX 3856, LAKE WORTH, FL 33465-3856
PO BOX 3857, LAKE WORTH, FL 33465-3857
PO BOX 3858, LAKE WORTH, FL 33465-3858
PO BOX 3859, LAKE WORTH, FL 33465-3859
PO BOX 3860, LAKE WORTH, FL 33465-3860
PO BOX 3861, LAKE WORTH, FL 33465-3861
PO BOX 3862, LAKE WORTH, FL 33465-3862
PO BOX 3863, LAKE WORTH, FL 33465-3863
PO BOX 3864, LAKE WORTH, FL 33465-3864
PO BOX 3865, LAKE WORTH, FL 33465-3865
PO BOX 3866, LAKE WORTH, FL 33465-3866
PO BOX 3867, LAKE WORTH, FL 33465-3867
PO BOX 3868, LAKE WORTH, FL 33465-3868
PO BOX 3869, LAKE WORTH, FL 33465-3869
PO BOX 3870, LAKE WORTH, FL 33465-3870
PO BOX 3871, LAKE WORTH, FL 33465-3871
PO BOX 3872, LAKE WORTH, FL 33465-3872
PO BOX 3873, LAKE WORTH, FL 33465-3873
PO BOX 3874, LAKE WORTH, FL 33465-3874
PO BOX 3875, LAKE WORTH, FL 33465-3875
PO BOX 3876, LAKE WORTH, FL 33465-3876
PO BOX 3877, LAKE WORTH, FL 33465-3877
PO BOX 3878, LAKE WORTH, FL 33465-3878
PO BOX 3879, LAKE WORTH, FL 33465-3879
PO BOX 3880, LAKE WORTH, FL 33465-3880
PO BOX 3881, LAKE WORTH, FL 33465-3881
PO BOX 3882, LAKE WORTH, FL 33465-3882
PO BOX 3883, LAKE WORTH, FL 33465-3883
PO BOX 3884, LAKE WORTH, FL 33465-3884
PO BOX 3885, LAKE WORTH, FL 33465-3885
PO BOX 3886, LAKE WORTH, FL 33465-3886
PO BOX 3887, LAKE WORTH, FL 33465-3887
PO BOX 3888, LAKE WORTH, FL 33465-3888
PO BOX 3889, LAKE WORTH, FL 33465-3889
PO BOX 3890, LAKE WORTH, FL 33465-3890
PO BOX 3891, LAKE WORTH, FL 33465-3891
PO BOX 3892, LAKE WORTH, FL 33465-3892
PO BOX 3893, LAKE WORTH, FL 33465-3893
PO BOX 3894, LAKE WORTH, FL 33465-3894
PO BOX 3895, LAKE WORTH, FL 33465-3895
PO BOX 3896, LAKE WORTH, FL 33465-3896
PO BOX 3897, LAKE WORTH, FL 33465-3897
PO BOX 3898, LAKE WORTH, FL 33465-3898
PO BOX 3899, LAKE WORTH, FL 33465-3899
PO BOX 3900, LAKE WORTH, FL 33465-3900
PO BOX 3901, LAKE WORTH, FL 33465-3901
PO BOX 3902, LAKE WORTH, FL 33465-3902
PO BOX 3903, LAKE WORTH, FL 33465-3903
PO BOX 3904, LAKE WORTH, FL 33465-3904
PO BOX 3905, LAKE WORTH, FL 33465-3905
PO BOX 3906, LAKE WORTH, FL 33465-3906
PO BOX 3907, LAKE WORTH, FL 33465-3907
PO BOX 3908, LAKE WORTH, FL 33465-3908
PO BOX 3909, LAKE WORTH, FL 33465-3909
PO BOX 3910, LAKE WORTH, FL 33465-3910
PO BOX 3911, LAKE WORTH, FL 33465-3911
PO BOX 3912, LAKE WORTH, FL 33465-3912
PO BOX 3913, LAKE WORTH, FL 33465-3913
PO BOX 3914, LAKE WORTH, FL 33465-3914
PO BOX 3915, LAKE WORTH, FL 33465-3915
PO BOX 3916, LAKE WORTH, FL 33465-3916
PO BOX 3917, LAKE WORTH, FL 33465-3917
PO BOX 3918, LAKE WORTH, FL 33465-3918
PO BOX 3919, LAKE WORTH, FL 33465-3919
PO BOX 3920, LAKE WORTH, FL 33465-3920
PO BOX 3921, LAKE WORTH, FL 33465-3921
PO BOX 3922, LAKE WORTH, FL 33465-3922
PO BOX 3923, LAKE WORTH, FL 33465-3923
PO BOX 3924, LAKE WORTH, FL 33465-3924
PO BOX 3925, LAKE WORTH, FL 33465-3925
PO BOX 3926, LAKE WORTH, FL 33465-3926
PO BOX 3927, LAKE WORTH, FL 33465-3927
PO BOX 3928, LAKE WORTH, FL 33465-3928
PO BOX 3929, LAKE WORTH, FL 33465-3929
PO BOX 3930, LAKE WORTH, FL 33465-3930
PO BOX 3931, LAKE WORTH, FL 33465-3931
PO BOX 3932, LAKE WORTH, FL 33465-3932
PO BOX 3933, LAKE WORTH, FL 33465-3933
PO BOX 3934, LAKE WORTH, FL 33465-3934
PO BOX 3935, LAKE WORTH, FL 33465-3935
PO BOX 3936, LAKE WORTH, FL 33465-3936
PO BOX 3937, LAKE WORTH, FL 33465-3937
PO BOX 3938, LAKE WORTH, FL 33465-3938
PO BOX 3939, LAKE WORTH, FL 33465-3939
PO BOX 3940, LAKE WORTH, FL 33465-3940
PO BOX 3941, LAKE WORTH, FL 33465-3941
PO BOX 3942, LAKE WORTH, FL 33465-3942
PO BOX 3943, LAKE WORTH, FL 33465-3943
PO BOX 3944, LAKE WORTH, FL 33465-3944
PO BOX 3945, LAKE WORTH, FL 33465-3945
PO BOX 3946, LAKE WORTH, FL 33465-3946
PO BOX 3947, LAKE WORTH, FL 33465-3947
PO BOX 3948, LAKE WORTH, FL 33465-3948
PO BOX 3949, LAKE WORTH, FL 33465-3949
PO BOX 3950, LAKE WORTH, FL 33465-3950
PO BOX 3951, LAKE WORTH, FL 33465-3951
PO BOX 3952, LAKE WORTH, FL 33465-3952
PO BOX 3953, LAKE WORTH, FL 33465-3953
PO BOX 3954, LAKE WORTH, FL 33465-3954
PO BOX 3955, LAKE WORTH, FL 33465-3955
PO BOX 3956, LAKE WORTH, FL 33465-3956
PO BOX 3957, LAKE WORTH, FL 33465-3957
PO BOX 3958, LAKE WORTH, FL 33465-3958
PO BOX 3959, LAKE WORTH, FL 33465-3959
PO BOX 3960, LAKE WORTH, FL 33465-3960
PO BOX 3961, LAKE WORTH, FL 33465-3961
PO BOX 3962, LAKE WORTH, FL 33465-3962
PO BOX 3963, LAKE WORTH, FL 33465-3963
PO BOX 3964, LAKE WORTH, FL 33465-3964
PO BOX 3965, LAKE WORTH, FL 33465-3965
PO BOX 3966, LAKE WORTH, FL 33465-3966
PO BOX 3967, LAKE WORTH, FL 33465-3967
PO BOX 3968, LAKE WORTH, FL 33465-3968
PO BOX 3969, LAKE WORTH, FL 33465-3969
PO BOX 3970, LAKE WORTH, FL 33465-3970
PO BOX 3971, LAKE WORTH, FL 33465-3971
PO BOX 3972, LAKE WORTH, FL 33465-3972
PO BOX 3973, LAKE WORTH, FL 33465-3973
PO BOX 3974, LAKE WORTH, FL 33465-3974
PO BOX 3975, LAKE WORTH, FL 33465-3975
PO BOX 3976, LAKE WORTH, FL 33465-3976
PO BOX 3977, LAKE WORTH, FL 33465-3977
PO BOX 3978, LAKE WORTH, FL 33465-3978
PO BOX 3979, LAKE WORTH, FL 33465-3979
PO BOX 3980, LAKE WORTH, FL 33465-3980
PO BOX 3981, LAKE WORTH, FL 33465-3981
PO BOX 3982, LAKE WORTH, FL 33465-3982
PO BOX 3983, LAKE WORTH, FL 33465-3983
PO BOX 3984, LAKE WORTH, FL 33465-3984
PO BOX 3985, LAKE WORTH, FL 33465-3985
PO BOX 3986, LAKE WORTH, FL 33465-3986
PO BOX 3987, LAKE WORTH, FL 33465-3987
PO BOX 3988, LAKE WORTH, FL 33465-3988
PO BOX 3989, LAKE WORTH, FL 33465-3989
PO BOX 3990, LAKE WORTH, FL 33465-3990
PO BOX 3991, LAKE WORTH, FL 33465-3991
PO BOX 3992, LAKE WORTH, FL 33465-3992
PO BOX 3993, LAKE WORTH, FL 33465-3993
PO BOX 3994, LAKE WORTH, FL 33465-3994
PO BOX 3995, LAKE WORTH, FL 33465-3995
PO BOX 3996, LAKE WORTH, FL 33465-3996
PO BOX 3997, LAKE WORTH, FL 33465-3997
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