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 13001, EDWARDSVILLE, KS 66113-0001
PO BOX 13002, EDWARDSVILLE, KS 66113-0002
PO BOX 13003, EDWARDSVILLE, KS 66113-0003
PO BOX 13004, EDWARDSVILLE, KS 66113-0004
PO BOX 13005, EDWARDSVILLE, KS 66113-0005
PO BOX 13006, EDWARDSVILLE, KS 66113-0006
PO BOX 13007, EDWARDSVILLE, KS 66113-0007
PO BOX 13008, EDWARDSVILLE, KS 66113-0008
PO BOX 13009, EDWARDSVILLE, KS 66113-0009
PO BOX 13010, EDWARDSVILLE, KS 66113-0010
PO BOX 13011, EDWARDSVILLE, KS 66113-0011
PO BOX 13012, EDWARDSVILLE, KS 66113-0012
PO BOX 13013, EDWARDSVILLE, KS 66113-0013
PO BOX 13014, EDWARDSVILLE, KS 66113-0014
PO BOX 13015, EDWARDSVILLE, KS 66113-0015
PO BOX 13016, EDWARDSVILLE, KS 66113-0016
PO BOX 13017, EDWARDSVILLE, KS 66113-0017
PO BOX 13018, EDWARDSVILLE, KS 66113-0018
PO BOX 13019, EDWARDSVILLE, KS 66113-0019
PO BOX 13020, EDWARDSVILLE, KS 66113-0020
PO BOX 13021, EDWARDSVILLE, KS 66113-0021
PO BOX 13022, EDWARDSVILLE, KS 66113-0022
PO BOX 13023, EDWARDSVILLE, KS 66113-0023
PO BOX 13024, EDWARDSVILLE, KS 66113-0024
PO BOX 13025, EDWARDSVILLE, KS 66113-0025
PO BOX 13026, EDWARDSVILLE, KS 66113-0026
PO BOX 13027, EDWARDSVILLE, KS 66113-0027
PO BOX 13028, EDWARDSVILLE, KS 66113-0028
PO BOX 13029, EDWARDSVILLE, KS 66113-0029
PO BOX 13030, EDWARDSVILLE, KS 66113-0030
PO BOX 13031, EDWARDSVILLE, KS 66113-0031
PO BOX 13032, EDWARDSVILLE, KS 66113-0032
PO BOX 13033, EDWARDSVILLE, KS 66113-0033
PO BOX 13034, EDWARDSVILLE, KS 66113-0034
PO BOX 13035, EDWARDSVILLE, KS 66113-0035
PO BOX 13036, EDWARDSVILLE, KS 66113-0036
PO BOX 13037, EDWARDSVILLE, KS 66113-0037
PO BOX 13038, EDWARDSVILLE, KS 66113-0038
PO BOX 13039, EDWARDSVILLE, KS 66113-0039
PO BOX 13040, EDWARDSVILLE, KS 66113-0040
PO BOX 13041, EDWARDSVILLE, KS 66113-0041
PO BOX 13042, EDWARDSVILLE, KS 66113-0042
PO BOX 13043, EDWARDSVILLE, KS 66113-0043
PO BOX 13044, EDWARDSVILLE, KS 66113-0044
PO BOX 13045, EDWARDSVILLE, KS 66113-0045
PO BOX 13046, EDWARDSVILLE, KS 66113-0046
PO BOX 13047, EDWARDSVILLE, KS 66113-0047
PO BOX 13048, EDWARDSVILLE, KS 66113-0048
PO BOX 13049, EDWARDSVILLE, KS 66113-0049
PO BOX 13050, EDWARDSVILLE, KS 66113-0050
PO BOX 13051, EDWARDSVILLE, KS 66113-0051
PO BOX 13052, EDWARDSVILLE, KS 66113-0052
PO BOX 13053, EDWARDSVILLE, KS 66113-0053
PO BOX 13054, EDWARDSVILLE, KS 66113-0054
PO BOX 13055, EDWARDSVILLE, KS 66113-0055
PO BOX 13056, EDWARDSVILLE, KS 66113-0056
PO BOX 13057, EDWARDSVILLE, KS 66113-0057
PO BOX 13058, EDWARDSVILLE, KS 66113-0058
PO BOX 13059, EDWARDSVILLE, KS 66113-0059
PO BOX 13060, EDWARDSVILLE, KS 66113-0060
PO BOX 13061, EDWARDSVILLE, KS 66113-0061
PO BOX 13062, EDWARDSVILLE, KS 66113-0062
PO BOX 13063, EDWARDSVILLE, KS 66113-0063
PO BOX 13064, EDWARDSVILLE, KS 66113-0064
PO BOX 13065, EDWARDSVILLE, KS 66113-0065
PO BOX 13066, EDWARDSVILLE, KS 66113-0066
PO BOX 13067, EDWARDSVILLE, KS 66113-0067
PO BOX 13068, EDWARDSVILLE, KS 66113-0068
PO BOX 13069, EDWARDSVILLE, KS 66113-0069
PO BOX 13070, EDWARDSVILLE, KS 66113-0070
PO BOX 13071, EDWARDSVILLE, KS 66113-0071
PO BOX 13072, EDWARDSVILLE, KS 66113-0072
PO BOX 13073, EDWARDSVILLE, KS 66113-0073
PO BOX 13074, EDWARDSVILLE, KS 66113-0074
PO BOX 13075, EDWARDSVILLE, KS 66113-0075
PO BOX 13076, EDWARDSVILLE, KS 66113-0076
PO BOX 13077, EDWARDSVILLE, KS 66113-0077
PO BOX 13078, EDWARDSVILLE, KS 66113-0078
PO BOX 13079, EDWARDSVILLE, KS 66113-0079
PO BOX 13080, EDWARDSVILLE, KS 66113-0080
PO BOX 13081, EDWARDSVILLE, KS 66113-0081
PO BOX 13082, EDWARDSVILLE, KS 66113-0082
PO BOX 13083, EDWARDSVILLE, KS 66113-0083
PO BOX 13084, EDWARDSVILLE, KS 66113-0084
PO BOX 13085, EDWARDSVILLE, KS 66113-0085
PO BOX 13086, EDWARDSVILLE, KS 66113-0086
PO BOX 13087, EDWARDSVILLE, KS 66113-0087
PO BOX 13088, EDWARDSVILLE, KS 66113-0088
PO BOX 13089, EDWARDSVILLE, KS 66113-0089
PO BOX 13090, EDWARDSVILLE, KS 66113-0090
PO BOX 13091, EDWARDSVILLE, KS 66113-0091
PO BOX 13092, EDWARDSVILLE, KS 66113-0092
PO BOX 13093, EDWARDSVILLE, KS 66113-0093
PO BOX 13094, EDWARDSVILLE, KS 66113-0094
PO BOX 13095, EDWARDSVILLE, KS 66113-0095
PO BOX 13096, EDWARDSVILLE, KS 66113-0096
PO BOX 13097, EDWARDSVILLE, KS 66113-0097
PO BOX 13098, EDWARDSVILLE, KS 66113-0098
PO BOX 13099, EDWARDSVILLE, KS 66113-0099
PO BOX 13100, EDWARDSVILLE, KS 66113-0100
PO BOX 13101, EDWARDSVILLE, KS 66113-0101
PO BOX 13102, EDWARDSVILLE, KS 66113-0102
PO BOX 13103, EDWARDSVILLE, KS 66113-0103
PO BOX 13104, EDWARDSVILLE, KS 66113-0104
PO BOX 13105, EDWARDSVILLE, KS 66113-0105
PO BOX 13106, EDWARDSVILLE, KS 66113-0106
PO BOX 13107, EDWARDSVILLE, KS 66113-0107
PO BOX 13108, EDWARDSVILLE, KS 66113-0108
PO BOX 13109, EDWARDSVILLE, KS 66113-0109
PO BOX 13110, EDWARDSVILLE, KS 66113-0110
PO BOX 13111, EDWARDSVILLE, KS 66113-0111
PO BOX 13112, EDWARDSVILLE, KS 66113-0112
PO BOX 13113, EDWARDSVILLE, KS 66113-0113
PO BOX 13114, EDWARDSVILLE, KS 66113-0114
PO BOX 13115, EDWARDSVILLE, KS 66113-0115
PO BOX 13116, EDWARDSVILLE, KS 66113-0116
PO BOX 13117, EDWARDSVILLE, KS 66113-0117
PO BOX 13118, EDWARDSVILLE, KS 66113-0118
PO BOX 13119, EDWARDSVILLE, KS 66113-0119
PO BOX 13120, EDWARDSVILLE, KS 66113-0120
PO BOX 13121, EDWARDSVILLE, KS 66113-0121
PO BOX 13122, EDWARDSVILLE, KS 66113-0122
PO BOX 13123, EDWARDSVILLE, KS 66113-0123
PO BOX 13124, EDWARDSVILLE, KS 66113-0124
PO BOX 13125, EDWARDSVILLE, KS 66113-0125
PO BOX 13126, EDWARDSVILLE, KS 66113-0126
PO BOX 13127, EDWARDSVILLE, KS 66113-0127
PO BOX 13128, EDWARDSVILLE, KS 66113-0128
PO BOX 13129, EDWARDSVILLE, KS 66113-0129
PO BOX 13130, EDWARDSVILLE, KS 66113-0130
PO BOX 13131, EDWARDSVILLE, KS 66113-0131
PO BOX 13132, EDWARDSVILLE, KS 66113-0132
PO BOX 13133, EDWARDSVILLE, KS 66113-0133
PO BOX 13134, EDWARDSVILLE, KS 66113-0134
PO BOX 13135, EDWARDSVILLE, KS 66113-0135
PO BOX 13136, EDWARDSVILLE, KS 66113-0136
PO BOX 13137, EDWARDSVILLE, KS 66113-0137
PO BOX 13138, EDWARDSVILLE, KS 66113-0138
PO BOX 13139, EDWARDSVILLE, KS 66113-0139
PO BOX 13140, EDWARDSVILLE, KS 66113-0140
PO BOX 13141, EDWARDSVILLE, KS 66113-0141
PO BOX 13142, EDWARDSVILLE, KS 66113-0142
PO BOX 13143, EDWARDSVILLE, KS 66113-0143
PO BOX 13144, EDWARDSVILLE, KS 66113-0144
PO BOX 13145, EDWARDSVILLE, KS 66113-0145
PO BOX 13146, EDWARDSVILLE, KS 66113-0146
PO BOX 13147, EDWARDSVILLE, KS 66113-0147
PO BOX 13148, EDWARDSVILLE, KS 66113-0148
PO BOX 13149, EDWARDSVILLE, KS 66113-0149
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