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, SAINT JOHNSVILLE, NY 13452-0001
PO BOX 2, SAINT JOHNSVILLE, NY 13452-0002
PO BOX 3, SAINT JOHNSVILLE, NY 13452-0003
PO BOX 4, SAINT JOHNSVILLE, NY 13452-0004
PO BOX 5, SAINT JOHNSVILLE, NY 13452-0005
PO BOX 6, SAINT JOHNSVILLE, NY 13452-0006
PO BOX 7, SAINT JOHNSVILLE, NY 13452-0007
PO BOX 8, SAINT JOHNSVILLE, NY 13452-0008
PO BOX 9, SAINT JOHNSVILLE, NY 13452-0009
PO BOX 10, SAINT JOHNSVILLE, NY 13452-0010
PO BOX 11, SAINT JOHNSVILLE, NY 13452-0011
PO BOX 12, SAINT JOHNSVILLE, NY 13452-0012
PO BOX 13, SAINT JOHNSVILLE, NY 13452-0013
PO BOX 14, SAINT JOHNSVILLE, NY 13452-0014
PO BOX 15, SAINT JOHNSVILLE, NY 13452-0015
PO BOX 16, SAINT JOHNSVILLE, NY 13452-0016
PO BOX 17, SAINT JOHNSVILLE, NY 13452-0017
PO BOX 18, SAINT JOHNSVILLE, NY 13452-0018
PO BOX 19, SAINT JOHNSVILLE, NY 13452-0019
PO BOX 20, SAINT JOHNSVILLE, NY 13452-0020
PO BOX 21, SAINT JOHNSVILLE, NY 13452-0021
PO BOX 22, SAINT JOHNSVILLE, NY 13452-0022
PO BOX 23, SAINT JOHNSVILLE, NY 13452-0023
PO BOX 24, SAINT JOHNSVILLE, NY 13452-0024
PO BOX 25, SAINT JOHNSVILLE, NY 13452-0025
PO BOX 26, SAINT JOHNSVILLE, NY 13452-0026
PO BOX 27, SAINT JOHNSVILLE, NY 13452-0027
PO BOX 28, SAINT JOHNSVILLE, NY 13452-0028
PO BOX 29, SAINT JOHNSVILLE, NY 13452-0029
PO BOX 30, SAINT JOHNSVILLE, NY 13452-0030
PO BOX 31, SAINT JOHNSVILLE, NY 13452-0031
PO BOX 32, SAINT JOHNSVILLE, NY 13452-0032
PO BOX 33, SAINT JOHNSVILLE, NY 13452-0033
PO BOX 34, SAINT JOHNSVILLE, NY 13452-0034
PO BOX 35, SAINT JOHNSVILLE, NY 13452-0035
PO BOX 36, SAINT JOHNSVILLE, NY 13452-0036
PO BOX 37, SAINT JOHNSVILLE, NY 13452-0037
PO BOX 38, SAINT JOHNSVILLE, NY 13452-0038
PO BOX 39, SAINT JOHNSVILLE, NY 13452-0039
PO BOX 40, SAINT JOHNSVILLE, NY 13452-0040
PO BOX 41, SAINT JOHNSVILLE, NY 13452-0041
PO BOX 42, SAINT JOHNSVILLE, NY 13452-0042
PO BOX 43, SAINT JOHNSVILLE, NY 13452-0043
PO BOX 44, SAINT JOHNSVILLE, NY 13452-0044
PO BOX 45, SAINT JOHNSVILLE, NY 13452-0045
PO BOX 46, SAINT JOHNSVILLE, NY 13452-0046
PO BOX 47, SAINT JOHNSVILLE, NY 13452-0047
PO BOX 48, SAINT JOHNSVILLE, NY 13452-0048
PO BOX 49, SAINT JOHNSVILLE, NY 13452-0049
PO BOX 50, SAINT JOHNSVILLE, NY 13452-0050
PO BOX 51, SAINT JOHNSVILLE, NY 13452-0051
PO BOX 52, SAINT JOHNSVILLE, NY 13452-0052
PO BOX 53, SAINT JOHNSVILLE, NY 13452-0053
PO BOX 54, SAINT JOHNSVILLE, NY 13452-0054
PO BOX 55, SAINT JOHNSVILLE, NY 13452-0055
PO BOX 56, SAINT JOHNSVILLE, NY 13452-0056
PO BOX 57, SAINT JOHNSVILLE, NY 13452-0057
PO BOX 58, SAINT JOHNSVILLE, NY 13452-0058
PO BOX 59, SAINT JOHNSVILLE, NY 13452-0059
PO BOX 60, SAINT JOHNSVILLE, NY 13452-0060
PO BOX 61, SAINT JOHNSVILLE, NY 13452-0061
PO BOX 62, SAINT JOHNSVILLE, NY 13452-0062
PO BOX 63, SAINT JOHNSVILLE, NY 13452-0063
PO BOX 64, SAINT JOHNSVILLE, NY 13452-0064
PO BOX 65, SAINT JOHNSVILLE, NY 13452-0065
PO BOX 66, SAINT JOHNSVILLE, NY 13452-0066
PO BOX 67, SAINT JOHNSVILLE, NY 13452-0067
PO BOX 68, SAINT JOHNSVILLE, NY 13452-0068
PO BOX 69, SAINT JOHNSVILLE, NY 13452-0069
PO BOX 70, SAINT JOHNSVILLE, NY 13452-0070
PO BOX 71, SAINT JOHNSVILLE, NY 13452-0071
PO BOX 72, SAINT JOHNSVILLE, NY 13452-0072
PO BOX 73, SAINT JOHNSVILLE, NY 13452-0073
PO BOX 74, SAINT JOHNSVILLE, NY 13452-0074
PO BOX 75, SAINT JOHNSVILLE, NY 13452-0075
PO BOX 76, SAINT JOHNSVILLE, NY 13452-0076
PO BOX 77, SAINT JOHNSVILLE, NY 13452-0077
PO BOX 78, SAINT JOHNSVILLE, NY 13452-0078
PO BOX 79, SAINT JOHNSVILLE, NY 13452-0079
PO BOX 80, SAINT JOHNSVILLE, NY 13452-0080
PO BOX 81, SAINT JOHNSVILLE, NY 13452-0081
PO BOX 82, SAINT JOHNSVILLE, NY 13452-0082
PO BOX 83, SAINT JOHNSVILLE, NY 13452-0083
PO BOX 84, SAINT JOHNSVILLE, NY 13452-0084
PO BOX 85, SAINT JOHNSVILLE, NY 13452-0085
PO BOX 86, SAINT JOHNSVILLE, NY 13452-0086
PO BOX 87, SAINT JOHNSVILLE, NY 13452-0087
PO BOX 88, SAINT JOHNSVILLE, NY 13452-0088
PO BOX 89, SAINT JOHNSVILLE, NY 13452-0089
PO BOX 90, SAINT JOHNSVILLE, NY 13452-0090
PO BOX 91, SAINT JOHNSVILLE, NY 13452-0091
PO BOX 92, SAINT JOHNSVILLE, NY 13452-0092
PO BOX 93, SAINT JOHNSVILLE, NY 13452-0093
PO BOX 94, SAINT JOHNSVILLE, NY 13452-0094
PO BOX 95, SAINT JOHNSVILLE, NY 13452-0095
PO BOX 96, SAINT JOHNSVILLE, NY 13452-0096
PO BOX 97, SAINT JOHNSVILLE, NY 13452-0097
PO BOX 98, SAINT JOHNSVILLE, NY 13452-0098
PO BOX 99, SAINT JOHNSVILLE, NY 13452-0099
PO BOX 100, SAINT JOHNSVILLE, NY 13452-0100
PO BOX 101, SAINT JOHNSVILLE, NY 13452-0101
PO BOX 102, SAINT JOHNSVILLE, NY 13452-0102
PO BOX 103, SAINT JOHNSVILLE, NY 13452-0103
PO BOX 104, SAINT JOHNSVILLE, NY 13452-0104
PO BOX 105, SAINT JOHNSVILLE, NY 13452-0105
PO BOX 106, SAINT JOHNSVILLE, NY 13452-0106
PO BOX 107, SAINT JOHNSVILLE, NY 13452-0107
PO BOX 108, SAINT JOHNSVILLE, NY 13452-0108
PO BOX 109, SAINT JOHNSVILLE, NY 13452-0109
PO BOX 110, SAINT JOHNSVILLE, NY 13452-0110
PO BOX 111, SAINT JOHNSVILLE, NY 13452-0111
PO BOX 112, SAINT JOHNSVILLE, NY 13452-0112
PO BOX 113, SAINT JOHNSVILLE, NY 13452-0113
PO BOX 114, SAINT JOHNSVILLE, NY 13452-0114
PO BOX 115, SAINT JOHNSVILLE, NY 13452-0115
PO BOX 116, SAINT JOHNSVILLE, NY 13452-0116
PO BOX 117, SAINT JOHNSVILLE, NY 13452-0117
PO BOX 118, SAINT JOHNSVILLE, NY 13452-0118
PO BOX 119, SAINT JOHNSVILLE, NY 13452-0119
PO BOX 120, SAINT JOHNSVILLE, NY 13452-0120
PO BOX 121, SAINT JOHNSVILLE, NY 13452-0121
PO BOX 122, SAINT JOHNSVILLE, NY 13452-0122
PO BOX 123, SAINT JOHNSVILLE, NY 13452-0123
PO BOX 124, SAINT JOHNSVILLE, NY 13452-0124
PO BOX 125, SAINT JOHNSVILLE, NY 13452-0125
PO BOX 126, SAINT JOHNSVILLE, NY 13452-0126
PO BOX 127, SAINT JOHNSVILLE, NY 13452-0127
PO BOX 128, SAINT JOHNSVILLE, NY 13452-0128
PO BOX 129, SAINT JOHNSVILLE, NY 13452-0129
PO BOX 130, SAINT JOHNSVILLE, NY 13452-0130
PO BOX 131, SAINT JOHNSVILLE, NY 13452-0131
PO BOX 132, SAINT JOHNSVILLE, NY 13452-0132
PO BOX 133, SAINT JOHNSVILLE, NY 13452-0133
PO BOX 134, SAINT JOHNSVILLE, NY 13452-0134
PO BOX 135, SAINT JOHNSVILLE, NY 13452-0135
PO BOX 136, SAINT JOHNSVILLE, NY 13452-0136
PO BOX 137, SAINT JOHNSVILLE, NY 13452-0137
PO BOX 138, SAINT JOHNSVILLE, NY 13452-0138
PO BOX 139, SAINT JOHNSVILLE, NY 13452-0139
PO BOX 140, SAINT JOHNSVILLE, NY 13452-0140
PO BOX 141, SAINT JOHNSVILLE, NY 13452-0141
PO BOX 142, SAINT JOHNSVILLE, NY 13452-0142
PO BOX 143, SAINT JOHNSVILLE, NY 13452-0143
PO BOX 144, SAINT JOHNSVILLE, NY 13452-0144
PO BOX 145, SAINT JOHNSVILLE, NY 13452-0145
PO BOX 146, SAINT JOHNSVILLE, NY 13452-0146
PO BOX 147, SAINT JOHNSVILLE, NY 13452-0147
PO BOX 148, SAINT JOHNSVILLE, NY 13452-0148
PO BOX 149, SAINT JOHNSVILLE, NY 13452-0149
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