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 11, LAMONT, IA 50650-0011
PO BOX 12, LAMONT, IA 50650-0012
PO BOX 13, LAMONT, IA 50650-0013
PO BOX 14, LAMONT, IA 50650-0014
PO BOX 15, LAMONT, IA 50650-0015
PO BOX 16, LAMONT, IA 50650-0016
PO BOX 17, LAMONT, IA 50650-0017
PO BOX 18, LAMONT, IA 50650-0018
PO BOX 19, LAMONT, IA 50650-0019
PO BOX 20, LAMONT, IA 50650-0020
PO BOX 21, LAMONT, IA 50650-0021
PO BOX 22, LAMONT, IA 50650-0022
PO BOX 23, LAMONT, IA 50650-0023
PO BOX 24, LAMONT, IA 50650-0024
PO BOX 25, LAMONT, IA 50650-0025
PO BOX 26, LAMONT, IA 50650-0026
PO BOX 27, LAMONT, IA 50650-0027
PO BOX 28, LAMONT, IA 50650-0028
PO BOX 29, LAMONT, IA 50650-0029
PO BOX 30, LAMONT, IA 50650-0030
PO BOX 31, LAMONT, IA 50650-0031
PO BOX 32, LAMONT, IA 50650-0032
PO BOX 33, LAMONT, IA 50650-0033
PO BOX 34, LAMONT, IA 50650-0034
PO BOX 35, LAMONT, IA 50650-0035
PO BOX 36, LAMONT, IA 50650-0036
PO BOX 37, LAMONT, IA 50650-0037
PO BOX 38, LAMONT, IA 50650-0038
PO BOX 39, LAMONT, IA 50650-0039
PO BOX 40, LAMONT, IA 50650-0040
PO BOX 41, LAMONT, IA 50650-0041
PO BOX 42, LAMONT, IA 50650-0042
PO BOX 43, LAMONT, IA 50650-0043
PO BOX 44, LAMONT, IA 50650-0044
PO BOX 45, LAMONT, IA 50650-0045
PO BOX 46, LAMONT, IA 50650-0046
PO BOX 47, LAMONT, IA 50650-0047
PO BOX 48, LAMONT, IA 50650-0048
PO BOX 49, LAMONT, IA 50650-0049
PO BOX 50, LAMONT, IA 50650-0050
PO BOX 51, LAMONT, IA 50650-0051
PO BOX 52, LAMONT, IA 50650-0052
PO BOX 53, LAMONT, IA 50650-0053
PO BOX 54, LAMONT, IA 50650-0054
PO BOX 55, LAMONT, IA 50650-0055
PO BOX 56, LAMONT, IA 50650-0056
PO BOX 57, LAMONT, IA 50650-0057
PO BOX 58, LAMONT, IA 50650-0058
PO BOX 59, LAMONT, IA 50650-0059
PO BOX 60, LAMONT, IA 50650-0060
PO BOX 61, LAMONT, IA 50650-0061
PO BOX 62, LAMONT, IA 50650-0062
PO BOX 63, LAMONT, IA 50650-0063
PO BOX 64, LAMONT, IA 50650-0064
PO BOX 65, LAMONT, IA 50650-0065
PO BOX 66, LAMONT, IA 50650-0066
PO BOX 67, LAMONT, IA 50650-0067
PO BOX 68, LAMONT, IA 50650-0068
PO BOX 69, LAMONT, IA 50650-0069
PO BOX 70, LAMONT, IA 50650-0070
PO BOX 71, LAMONT, IA 50650-0071
PO BOX 72, LAMONT, IA 50650-0072
PO BOX 73, LAMONT, IA 50650-0073
PO BOX 74, LAMONT, IA 50650-0074
PO BOX 75, LAMONT, IA 50650-0075
PO BOX 76, LAMONT, IA 50650-0076
PO BOX 77, LAMONT, IA 50650-0077
PO BOX 78, LAMONT, IA 50650-0078
PO BOX 79, LAMONT, IA 50650-0079
PO BOX 80, LAMONT, IA 50650-0080
PO BOX 81, LAMONT, IA 50650-0081
PO BOX 82, LAMONT, IA 50650-0082
PO BOX 83, LAMONT, IA 50650-0083
PO BOX 84, LAMONT, IA 50650-0084
PO BOX 85, LAMONT, IA 50650-0085
PO BOX 86, LAMONT, IA 50650-0086
PO BOX 87, LAMONT, IA 50650-0087
PO BOX 88, LAMONT, IA 50650-0088
PO BOX 89, LAMONT, IA 50650-0089
PO BOX 90, LAMONT, IA 50650-0090
PO BOX 91, LAMONT, IA 50650-0091
PO BOX 92, LAMONT, IA 50650-0092
PO BOX 93, LAMONT, IA 50650-0093
PO BOX 94, LAMONT, IA 50650-0094
PO BOX 95, LAMONT, IA 50650-0095
PO BOX 96, LAMONT, IA 50650-0096
PO BOX 97, LAMONT, IA 50650-0097
PO BOX 98, LAMONT, IA 50650-0098
PO BOX 99, LAMONT, IA 50650-0099
PO BOX 100, LAMONT, IA 50650-0100
PO BOX 101, LAMONT, IA 50650-0101
PO BOX 102, LAMONT, IA 50650-0102
PO BOX 103, LAMONT, IA 50650-0103
PO BOX 104, LAMONT, IA 50650-0104
PO BOX 105, LAMONT, IA 50650-0105
PO BOX 106, LAMONT, IA 50650-0106
PO BOX 107, LAMONT, IA 50650-0107
PO BOX 108, LAMONT, IA 50650-0108
PO BOX 109, LAMONT, IA 50650-0109
PO BOX 110, LAMONT, IA 50650-0110
PO BOX 111, LAMONT, IA 50650-0111
PO BOX 112, LAMONT, IA 50650-0112
PO BOX 113, LAMONT, IA 50650-0113
PO BOX 114, LAMONT, IA 50650-0114
PO BOX 115, LAMONT, IA 50650-0115
PO BOX 116, LAMONT, IA 50650-0116
PO BOX 117, LAMONT, IA 50650-0117
PO BOX 118, LAMONT, IA 50650-0118
PO BOX 119, LAMONT, IA 50650-0119
PO BOX 120, LAMONT, IA 50650-0120
PO BOX 121, LAMONT, IA 50650-0121
PO BOX 122, LAMONT, IA 50650-0122
PO BOX 123, LAMONT, IA 50650-0123
PO BOX 124, LAMONT, IA 50650-0124
PO BOX 125, LAMONT, IA 50650-0125
PO BOX 126, LAMONT, IA 50650-0126
PO BOX 127, LAMONT, IA 50650-0127
PO BOX 128, LAMONT, IA 50650-0128
PO BOX 129, LAMONT, IA 50650-0129
PO BOX 130, LAMONT, IA 50650-0130
PO BOX 131, LAMONT, IA 50650-0131
PO BOX 132, LAMONT, IA 50650-0132
PO BOX 133, LAMONT, IA 50650-0133
PO BOX 134, LAMONT, IA 50650-0134
PO BOX 135, LAMONT, IA 50650-0135
PO BOX 136, LAMONT, IA 50650-0136
PO BOX 137, LAMONT, IA 50650-0137
PO BOX 138, LAMONT, IA 50650-0138
PO BOX 139, LAMONT, IA 50650-0139
PO BOX 140, LAMONT, IA 50650-0140
PO BOX 141, LAMONT, IA 50650-0141
PO BOX 142, LAMONT, IA 50650-0142
PO BOX 143, LAMONT, IA 50650-0143
PO BOX 144, LAMONT, IA 50650-0144
PO BOX 145, LAMONT, IA 50650-0145
PO BOX 146, LAMONT, IA 50650-0146
PO BOX 147, LAMONT, IA 50650-0147
PO BOX 148, LAMONT, IA 50650-0148
PO BOX 149, LAMONT, IA 50650-0149
PO BOX 150, LAMONT, IA 50650-0150
PO BOX 151, LAMONT, IA 50650-0151
PO BOX 152, LAMONT, IA 50650-0152
PO BOX 153, LAMONT, IA 50650-0153
PO BOX 154, LAMONT, IA 50650-0154
PO BOX 155, LAMONT, IA 50650-0155
PO BOX 156, LAMONT, IA 50650-0156
PO BOX 157, LAMONT, IA 50650-0157
PO BOX 158, LAMONT, IA 50650-0158
PO BOX 159, LAMONT, IA 50650-0159
PO BOX 160, LAMONT, IA 50650-0160
PO BOX 161, LAMONT, IA 50650-0161
PO BOX 162, LAMONT, IA 50650-0162
PO BOX 163, LAMONT, IA 50650-0163
PO BOX 164, LAMONT, IA 50650-0164
PO BOX 165, LAMONT, IA 50650-0165
PO BOX 166, LAMONT, IA 50650-0166
PO BOX 167, LAMONT, IA 50650-0167
PO BOX 168, LAMONT, IA 50650-0168
PO BOX 169, LAMONT, IA 50650-0169
PO BOX 170, LAMONT, IA 50650-0170
PO BOX 171, LAMONT, IA 50650-0171
PO BOX 172, LAMONT, IA 50650-0172
PO BOX 173, LAMONT, IA 50650-0173
PO BOX 174, LAMONT, IA 50650-0174
PO BOX 175, LAMONT, IA 50650-0175
PO BOX 176, LAMONT, IA 50650-0176
PO BOX 177, LAMONT, IA 50650-0177
PO BOX 178, LAMONT, IA 50650-0178
PO BOX 179, LAMONT, IA 50650-0179
PO BOX 180, LAMONT, IA 50650-0180
PO BOX 181, LAMONT, IA 50650-0181
PO BOX 182, LAMONT, IA 50650-0182
PO BOX 183, LAMONT, IA 50650-0183
PO BOX 184, LAMONT, IA 50650-0184
PO BOX 185, LAMONT, IA 50650-0185
PO BOX 186, LAMONT, IA 50650-0186
PO BOX 187, LAMONT, IA 50650-0187
PO BOX 188, LAMONT, IA 50650-0188
PO BOX 189, LAMONT, IA 50650-0189
PO BOX 190, LAMONT, IA 50650-0190
PO BOX 191, LAMONT, IA 50650-0191
PO BOX 192, LAMONT, IA 50650-0192
PO BOX 193, LAMONT, IA 50650-0193
PO BOX 194, LAMONT, IA 50650-0194
PO BOX 195, LAMONT, IA 50650-0195
PO BOX 196, LAMONT, IA 50650-0196
PO BOX 197, LAMONT, IA 50650-0197
PO BOX 198, LAMONT, IA 50650-0198
PO BOX 199, LAMONT, IA 50650-0199
PO BOX 200, LAMONT, IA 50650-0200
PO BOX 201, LAMONT, IA 50650-0201
PO BOX 202, LAMONT, IA 50650-0202
PO BOX 203, LAMONT, IA 50650-0203
PO BOX 204, LAMONT, IA 50650-0204
PO BOX 205, LAMONT, IA 50650-0205
PO BOX 206, LAMONT, IA 50650-0206
PO BOX 207, LAMONT, IA 50650-0207
PO BOX 208, LAMONT, IA 50650-0208
PO BOX 209, LAMONT, IA 50650-0209
PO BOX 210, LAMONT, IA 50650-0210
PO BOX 211, LAMONT, IA 50650-0211
Add new comment