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 1, COLFAX, IA 50054-0001
PO BOX 2, COLFAX, IA 50054-0002
PO BOX 3, COLFAX, IA 50054-0003
PO BOX 4, COLFAX, IA 50054-0004
PO BOX 5, COLFAX, IA 50054-0005
PO BOX 6, COLFAX, IA 50054-0006
PO BOX 7, COLFAX, IA 50054-0007
PO BOX 8, COLFAX, IA 50054-0008
PO BOX 9, COLFAX, IA 50054-0009
PO BOX 10, COLFAX, IA 50054-0010
PO BOX 11, COLFAX, IA 50054-0011
PO BOX 12, COLFAX, IA 50054-0012
PO BOX 13, COLFAX, IA 50054-0013
PO BOX 14, COLFAX, IA 50054-0014
PO BOX 15, COLFAX, IA 50054-0015
PO BOX 16, COLFAX, IA 50054-0016
PO BOX 17, COLFAX, IA 50054-0017
PO BOX 18, COLFAX, IA 50054-0018
PO BOX 19, COLFAX, IA 50054-0019
PO BOX 20, COLFAX, IA 50054-0020
PO BOX 21, COLFAX, IA 50054-0021
PO BOX 22, COLFAX, IA 50054-0022
PO BOX 23, COLFAX, IA 50054-0023
PO BOX 24, COLFAX, IA 50054-0024
PO BOX 25, COLFAX, IA 50054-0025
PO BOX 26, COLFAX, IA 50054-0026
PO BOX 27, COLFAX, IA 50054-0027
PO BOX 28, COLFAX, IA 50054-0028
PO BOX 29, COLFAX, IA 50054-0029
PO BOX 30, COLFAX, IA 50054-0030
PO BOX 31, COLFAX, IA 50054-0031
PO BOX 32, COLFAX, IA 50054-0032
PO BOX 33, COLFAX, IA 50054-0033
PO BOX 34, COLFAX, IA 50054-0034
PO BOX 35, COLFAX, IA 50054-0035
PO BOX 36, COLFAX, IA 50054-0036
PO BOX 37, COLFAX, IA 50054-0037
PO BOX 38, COLFAX, IA 50054-0038
PO BOX 39, COLFAX, IA 50054-0039
PO BOX 40, COLFAX, IA 50054-0040
PO BOX 41, COLFAX, IA 50054-0041
PO BOX 42, COLFAX, IA 50054-0042
PO BOX 43, COLFAX, IA 50054-0043
PO BOX 44, COLFAX, IA 50054-0044
PO BOX 45, COLFAX, IA 50054-0045
PO BOX 46, COLFAX, IA 50054-0046
PO BOX 47, COLFAX, IA 50054-0047
PO BOX 48, COLFAX, IA 50054-0048
PO BOX 49, COLFAX, IA 50054-0049
PO BOX 50, COLFAX, IA 50054-0050
PO BOX 51, COLFAX, IA 50054-0051
PO BOX 52, COLFAX, IA 50054-0052
PO BOX 53, COLFAX, IA 50054-0053
PO BOX 54, COLFAX, IA 50054-0054
PO BOX 55, COLFAX, IA 50054-0055
PO BOX 56, COLFAX, IA 50054-0056
PO BOX 57, COLFAX, IA 50054-0057
PO BOX 58, COLFAX, IA 50054-0058
PO BOX 59, COLFAX, IA 50054-0059
PO BOX 60, COLFAX, IA 50054-0060
PO BOX 61, COLFAX, IA 50054-0061
PO BOX 62, COLFAX, IA 50054-0062
PO BOX 63, COLFAX, IA 50054-0063
PO BOX 64, COLFAX, IA 50054-0064
PO BOX 65, COLFAX, IA 50054-0065
PO BOX 66, COLFAX, IA 50054-0066
PO BOX 67, COLFAX, IA 50054-0067
PO BOX 68, COLFAX, IA 50054-0068
PO BOX 69, COLFAX, IA 50054-0069
PO BOX 70, COLFAX, IA 50054-0070
PO BOX 71, COLFAX, IA 50054-0071
PO BOX 72, COLFAX, IA 50054-0072
PO BOX 73, COLFAX, IA 50054-0073
PO BOX 74, COLFAX, IA 50054-0074
PO BOX 75, COLFAX, IA 50054-0075
PO BOX 76, COLFAX, IA 50054-0076
PO BOX 77, COLFAX, IA 50054-0077
PO BOX 78, COLFAX, IA 50054-0078
PO BOX 79, COLFAX, IA 50054-0079
PO BOX 80, COLFAX, IA 50054-0080
PO BOX 81, COLFAX, IA 50054-0081
PO BOX 82, COLFAX, IA 50054-0082
PO BOX 83, COLFAX, IA 50054-0083
PO BOX 84, COLFAX, IA 50054-0084
PO BOX 85, COLFAX, IA 50054-0085
PO BOX 86, COLFAX, IA 50054-0086
PO BOX 87, COLFAX, IA 50054-0087
PO BOX 88, COLFAX, IA 50054-0088
PO BOX 89, COLFAX, IA 50054-0089
PO BOX 90, COLFAX, IA 50054-0090
PO BOX 91, COLFAX, IA 50054-0091
PO BOX 92, COLFAX, IA 50054-0092
PO BOX 93, COLFAX, IA 50054-0093
PO BOX 94, COLFAX, IA 50054-0094
PO BOX 95, COLFAX, IA 50054-0095
PO BOX 96, COLFAX, IA 50054-0096
PO BOX 97, COLFAX, IA 50054-0097
PO BOX 98, COLFAX, IA 50054-0098
PO BOX 99, COLFAX, IA 50054-0099
PO BOX 100, COLFAX, IA 50054-0100
PO BOX 101, COLFAX, IA 50054-0101
PO BOX 102, COLFAX, IA 50054-0102
PO BOX 103, COLFAX, IA 50054-0103
PO BOX 104, COLFAX, IA 50054-0104
PO BOX 105, COLFAX, IA 50054-0105
PO BOX 106, COLFAX, IA 50054-0106
PO BOX 107, COLFAX, IA 50054-0107
PO BOX 108, COLFAX, IA 50054-0108
PO BOX 109, COLFAX, IA 50054-0109
PO BOX 110, COLFAX, IA 50054-0110
PO BOX 111, COLFAX, IA 50054-0111
PO BOX 112, COLFAX, IA 50054-0112
PO BOX 113, COLFAX, IA 50054-0113
PO BOX 114, COLFAX, IA 50054-0114
PO BOX 115, COLFAX, IA 50054-0115
PO BOX 116, COLFAX, IA 50054-0116
PO BOX 117, COLFAX, IA 50054-0117
PO BOX 118, COLFAX, IA 50054-0118
PO BOX 119, COLFAX, IA 50054-0119
PO BOX 120, COLFAX, IA 50054-0120
PO BOX 121, COLFAX, IA 50054-0121
PO BOX 122, COLFAX, IA 50054-0122
PO BOX 123, COLFAX, IA 50054-0123
PO BOX 124, COLFAX, IA 50054-0124
PO BOX 125, COLFAX, IA 50054-0125
PO BOX 126, COLFAX, IA 50054-0126
PO BOX 127, COLFAX, IA 50054-0127
PO BOX 128, COLFAX, IA 50054-0128
PO BOX 129, COLFAX, IA 50054-0129
PO BOX 130, COLFAX, IA 50054-0130
PO BOX 131, COLFAX, IA 50054-0131
PO BOX 132, COLFAX, IA 50054-0132
PO BOX 133, COLFAX, IA 50054-0133
PO BOX 134, COLFAX, IA 50054-0134
PO BOX 135, COLFAX, IA 50054-0135
PO BOX 136, COLFAX, IA 50054-0136
PO BOX 137, COLFAX, IA 50054-0137
PO BOX 138, COLFAX, IA 50054-0138
PO BOX 139, COLFAX, IA 50054-0139
PO BOX 140, COLFAX, IA 50054-0140
PO BOX 141, COLFAX, IA 50054-0141
PO BOX 142, COLFAX, IA 50054-0142
PO BOX 143, COLFAX, IA 50054-0143
PO BOX 144, COLFAX, IA 50054-0144
PO BOX 145, COLFAX, IA 50054-0145
PO BOX 146, COLFAX, IA 50054-0146
PO BOX 147, COLFAX, IA 50054-0147
PO BOX 148, COLFAX, IA 50054-0148
PO BOX 149, COLFAX, IA 50054-0149
PO BOX 150, COLFAX, IA 50054-0150
PO BOX 151, COLFAX, IA 50054-0151
PO BOX 152, COLFAX, IA 50054-0152
PO BOX 153, COLFAX, IA 50054-0153
PO BOX 154, COLFAX, IA 50054-0154
PO BOX 155, COLFAX, IA 50054-0155
PO BOX 156, COLFAX, IA 50054-0156
PO BOX 157, COLFAX, IA 50054-0157
PO BOX 158, COLFAX, IA 50054-0158
PO BOX 159, COLFAX, IA 50054-0159
PO BOX 160, COLFAX, IA 50054-0160
PO BOX 161, COLFAX, IA 50054-0161
PO BOX 162, COLFAX, IA 50054-0162
PO BOX 163, COLFAX, IA 50054-0163
PO BOX 164, COLFAX, IA 50054-0164
PO BOX 165, COLFAX, IA 50054-0165
PO BOX 166, COLFAX, IA 50054-0166
PO BOX 167, COLFAX, IA 50054-0167
PO BOX 168, COLFAX, IA 50054-0168
PO BOX 169, COLFAX, IA 50054-0169
PO BOX 170, COLFAX, IA 50054-0170
PO BOX 171, COLFAX, IA 50054-0171
PO BOX 172, COLFAX, IA 50054-0172
PO BOX 173, COLFAX, IA 50054-0173
PO BOX 174, COLFAX, IA 50054-0174
PO BOX 175, COLFAX, IA 50054-0175
PO BOX 176, COLFAX, IA 50054-0176
PO BOX 177, COLFAX, IA 50054-0177
PO BOX 178, COLFAX, IA 50054-0178
PO BOX 179, COLFAX, IA 50054-0179
PO BOX 180, COLFAX, IA 50054-0180
PO BOX 181, COLFAX, IA 50054-0181
PO BOX 182, COLFAX, IA 50054-0182
PO BOX 183, COLFAX, IA 50054-0183
PO BOX 184, COLFAX, IA 50054-0184
PO BOX 185, COLFAX, IA 50054-0185
PO BOX 186, COLFAX, IA 50054-0186
PO BOX 187, COLFAX, IA 50054-0187
PO BOX 188, COLFAX, IA 50054-0188
PO BOX 189, COLFAX, IA 50054-0189
PO BOX 190, COLFAX, IA 50054-0190
Add new comment