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, SHERMAN, NY 14781-0001
PO BOX 2, SHERMAN, NY 14781-0002
PO BOX 3, SHERMAN, NY 14781-0003
PO BOX 4, SHERMAN, NY 14781-0004
PO BOX 5, SHERMAN, NY 14781-0005
PO BOX 6, SHERMAN, NY 14781-0006
PO BOX 7, SHERMAN, NY 14781-0007
PO BOX 8, SHERMAN, NY 14781-0008
PO BOX 9, SHERMAN, NY 14781-0009
PO BOX 10, SHERMAN, NY 14781-0010
PO BOX 11, SHERMAN, NY 14781-0011
PO BOX 12, SHERMAN, NY 14781-0012
PO BOX 13, SHERMAN, NY 14781-0013
PO BOX 14, SHERMAN, NY 14781-0014
PO BOX 15, SHERMAN, NY 14781-0015
PO BOX 16, SHERMAN, NY 14781-0016
PO BOX 17, SHERMAN, NY 14781-0017
PO BOX 18, SHERMAN, NY 14781-0018
PO BOX 19, SHERMAN, NY 14781-0019
PO BOX 20, SHERMAN, NY 14781-0020
PO BOX 21, SHERMAN, NY 14781-0021
PO BOX 22, SHERMAN, NY 14781-0022
PO BOX 23, SHERMAN, NY 14781-0023
PO BOX 24, SHERMAN, NY 14781-0024
PO BOX 25, SHERMAN, NY 14781-0025
PO BOX 26, SHERMAN, NY 14781-0026
PO BOX 27, SHERMAN, NY 14781-0027
PO BOX 28, SHERMAN, NY 14781-0028
PO BOX 29, SHERMAN, NY 14781-0029
PO BOX 30, SHERMAN, NY 14781-0030
PO BOX 31, SHERMAN, NY 14781-0031
PO BOX 32, SHERMAN, NY 14781-0032
PO BOX 33, SHERMAN, NY 14781-0033
PO BOX 34, SHERMAN, NY 14781-0034
PO BOX 35, SHERMAN, NY 14781-0035
PO BOX 36, SHERMAN, NY 14781-0036
PO BOX 37, SHERMAN, NY 14781-0037
PO BOX 38, SHERMAN, NY 14781-0038
PO BOX 39, SHERMAN, NY 14781-0039
PO BOX 40, SHERMAN, NY 14781-0040
PO BOX 41, SHERMAN, NY 14781-0041
PO BOX 42, SHERMAN, NY 14781-0042
PO BOX 43, SHERMAN, NY 14781-0043
PO BOX 44, SHERMAN, NY 14781-0044
PO BOX 45, SHERMAN, NY 14781-0045
PO BOX 46, SHERMAN, NY 14781-0046
PO BOX 47, SHERMAN, NY 14781-0047
PO BOX 48, SHERMAN, NY 14781-0048
PO BOX 49, SHERMAN, NY 14781-0049
PO BOX 50, SHERMAN, NY 14781-0050
PO BOX 51, SHERMAN, NY 14781-0051
PO BOX 52, SHERMAN, NY 14781-0052
PO BOX 53, SHERMAN, NY 14781-0053
PO BOX 54, SHERMAN, NY 14781-0054
PO BOX 55, SHERMAN, NY 14781-0055
PO BOX 56, SHERMAN, NY 14781-0056
PO BOX 57, SHERMAN, NY 14781-0057
PO BOX 58, SHERMAN, NY 14781-0058
PO BOX 59, SHERMAN, NY 14781-0059
PO BOX 60, SHERMAN, NY 14781-0060
PO BOX 61, SHERMAN, NY 14781-0061
PO BOX 62, SHERMAN, NY 14781-0062
PO BOX 63, SHERMAN, NY 14781-0063
PO BOX 64, SHERMAN, NY 14781-0064
PO BOX 65, SHERMAN, NY 14781-0065
PO BOX 66, SHERMAN, NY 14781-0066
PO BOX 67, SHERMAN, NY 14781-0067
PO BOX 68, SHERMAN, NY 14781-0068
PO BOX 69, SHERMAN, NY 14781-0069
PO BOX 70, SHERMAN, NY 14781-0070
PO BOX 71, SHERMAN, NY 14781-0071
PO BOX 72, SHERMAN, NY 14781-0072
PO BOX 73, SHERMAN, NY 14781-0073
PO BOX 74, SHERMAN, NY 14781-0074
PO BOX 75, SHERMAN, NY 14781-0075
PO BOX 76, SHERMAN, NY 14781-0076
PO BOX 77, SHERMAN, NY 14781-0077
PO BOX 78, SHERMAN, NY 14781-0078
PO BOX 79, SHERMAN, NY 14781-0079
PO BOX 80, SHERMAN, NY 14781-0080
PO BOX 81, SHERMAN, NY 14781-0081
PO BOX 82, SHERMAN, NY 14781-0082
PO BOX 83, SHERMAN, NY 14781-0083
PO BOX 84, SHERMAN, NY 14781-0084
PO BOX 85, SHERMAN, NY 14781-0085
PO BOX 86, SHERMAN, NY 14781-0086
PO BOX 87, SHERMAN, NY 14781-0087
PO BOX 88, SHERMAN, NY 14781-0088
PO BOX 89, SHERMAN, NY 14781-0089
PO BOX 90, SHERMAN, NY 14781-0090
PO BOX 91, SHERMAN, NY 14781-0091
PO BOX 92, SHERMAN, NY 14781-0092
PO BOX 93, SHERMAN, NY 14781-0093
PO BOX 94, SHERMAN, NY 14781-0094
PO BOX 95, SHERMAN, NY 14781-0095
PO BOX 96, SHERMAN, NY 14781-0096
PO BOX 97, SHERMAN, NY 14781-0097
PO BOX 98, SHERMAN, NY 14781-0098
PO BOX 99, SHERMAN, NY 14781-0099
PO BOX 100, SHERMAN, NY 14781-0100
PO BOX 101, SHERMAN, NY 14781-0101
PO BOX 102, SHERMAN, NY 14781-0102
PO BOX 103, SHERMAN, NY 14781-0103
PO BOX 104, SHERMAN, NY 14781-0104
PO BOX 105, SHERMAN, NY 14781-0105
PO BOX 106, SHERMAN, NY 14781-0106
PO BOX 107, SHERMAN, NY 14781-0107
PO BOX 108, SHERMAN, NY 14781-0108
PO BOX 109, SHERMAN, NY 14781-0109
PO BOX 110, SHERMAN, NY 14781-0110
PO BOX 111, SHERMAN, NY 14781-0111
PO BOX 112, SHERMAN, NY 14781-0112
PO BOX 113, SHERMAN, NY 14781-0113
PO BOX 114, SHERMAN, NY 14781-0114
PO BOX 115, SHERMAN, NY 14781-0115
PO BOX 116, SHERMAN, NY 14781-0116
PO BOX 117, SHERMAN, NY 14781-0117
PO BOX 118, SHERMAN, NY 14781-0118
PO BOX 119, SHERMAN, NY 14781-0119
PO BOX 120, SHERMAN, NY 14781-0120
PO BOX 121, SHERMAN, NY 14781-0121
PO BOX 122, SHERMAN, NY 14781-0122
PO BOX 123, SHERMAN, NY 14781-0123
PO BOX 124, SHERMAN, NY 14781-0124
PO BOX 125, SHERMAN, NY 14781-0125
PO BOX 126, SHERMAN, NY 14781-0126
PO BOX 127, SHERMAN, NY 14781-0127
PO BOX 128, SHERMAN, NY 14781-0128
PO BOX 129, SHERMAN, NY 14781-0129
PO BOX 130, SHERMAN, NY 14781-0130
PO BOX 131, SHERMAN, NY 14781-0131
PO BOX 132, SHERMAN, NY 14781-0132
PO BOX 133, SHERMAN, NY 14781-0133
PO BOX 134, SHERMAN, NY 14781-0134
PO BOX 135, SHERMAN, NY 14781-0135
PO BOX 136, SHERMAN, NY 14781-0136
PO BOX 137, SHERMAN, NY 14781-0137
PO BOX 138, SHERMAN, NY 14781-0138
PO BOX 139, SHERMAN, NY 14781-0139
PO BOX 140, SHERMAN, NY 14781-0140
PO BOX 141, SHERMAN, NY 14781-0141
PO BOX 142, SHERMAN, NY 14781-0142
PO BOX 143, SHERMAN, NY 14781-0143
PO BOX 144, SHERMAN, NY 14781-0144
PO BOX 145, SHERMAN, NY 14781-0145
PO BOX 146, SHERMAN, NY 14781-0146
PO BOX 147, SHERMAN, NY 14781-0147
PO BOX 148, SHERMAN, NY 14781-0148
PO BOX 149, SHERMAN, NY 14781-0149
PO BOX 150, SHERMAN, NY 14781-0150
PO BOX 151, SHERMAN, NY 14781-0151
PO BOX 152, SHERMAN, NY 14781-0152
PO BOX 153, SHERMAN, NY 14781-0153
PO BOX 154, SHERMAN, NY 14781-0154
PO BOX 155, SHERMAN, NY 14781-0155
PO BOX 156, SHERMAN, NY 14781-0156
PO BOX 157, SHERMAN, NY 14781-0157
PO BOX 158, SHERMAN, NY 14781-0158
PO BOX 159, SHERMAN, NY 14781-0159
PO BOX 160, SHERMAN, NY 14781-0160
PO BOX 161, SHERMAN, NY 14781-0161
PO BOX 162, SHERMAN, NY 14781-0162
PO BOX 163, SHERMAN, NY 14781-0163
PO BOX 164, SHERMAN, NY 14781-0164
PO BOX 165, SHERMAN, NY 14781-0165
PO BOX 166, SHERMAN, NY 14781-0166
PO BOX 167, SHERMAN, NY 14781-0167
PO BOX 168, SHERMAN, NY 14781-0168
PO BOX 169, SHERMAN, NY 14781-0169
PO BOX 170, SHERMAN, NY 14781-0170
PO BOX 171, SHERMAN, NY 14781-0171
PO BOX 172, SHERMAN, NY 14781-0172
PO BOX 173, SHERMAN, NY 14781-0173
PO BOX 174, SHERMAN, NY 14781-0174
PO BOX 175, SHERMAN, NY 14781-0175
PO BOX 176, SHERMAN, NY 14781-0176
PO BOX 177, SHERMAN, NY 14781-0177
PO BOX 178, SHERMAN, NY 14781-0178
PO BOX 179, SHERMAN, NY 14781-0179
PO BOX 180, SHERMAN, NY 14781-0180
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