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, SEBRING, FL 33871-0001
PO BOX 2, SEBRING, FL 33871-0002
PO BOX 3, SEBRING, FL 33871-0003
PO BOX 4, SEBRING, FL 33871-0004
PO BOX 5, SEBRING, FL 33871-0005
PO BOX 6, SEBRING, FL 33871-0006
PO BOX 7, SEBRING, FL 33871-0007
PO BOX 8, SEBRING, FL 33871-0008
PO BOX 9, SEBRING, FL 33871-0009
PO BOX 10, SEBRING, FL 33871-0010
PO BOX 11, SEBRING, FL 33871-0011
PO BOX 12, SEBRING, FL 33871-0012
PO BOX 13, SEBRING, FL 33871-0013
PO BOX 14, SEBRING, FL 33871-0014
PO BOX 15, SEBRING, FL 33871-0015
PO BOX 16, SEBRING, FL 33871-0016
PO BOX 17, SEBRING, FL 33871-0017
PO BOX 18, SEBRING, FL 33871-0018
PO BOX 19, SEBRING, FL 33871-0019
PO BOX 20, SEBRING, FL 33871-0020
PO BOX 21, SEBRING, FL 33871-0021
PO BOX 22, SEBRING, FL 33871-0022
PO BOX 23, SEBRING, FL 33871-0023
PO BOX 24, SEBRING, FL 33871-0024
PO BOX 25, SEBRING, FL 33871-0025
PO BOX 26, SEBRING, FL 33871-0026
PO BOX 27, SEBRING, FL 33871-0027
PO BOX 28, SEBRING, FL 33871-0028
PO BOX 29, SEBRING, FL 33871-0029
PO BOX 30, SEBRING, FL 33871-0030
PO BOX 31, SEBRING, FL 33871-0031
PO BOX 32, SEBRING, FL 33871-0032
PO BOX 33, SEBRING, FL 33871-0033
PO BOX 34, SEBRING, FL 33871-0034
PO BOX 35, SEBRING, FL 33871-0035
PO BOX 36, SEBRING, FL 33871-0036
PO BOX 37, SEBRING, FL 33871-0037
PO BOX 38, SEBRING, FL 33871-0038
PO BOX 39, SEBRING, FL 33871-0039
PO BOX 40, SEBRING, FL 33871-0040
PO BOX 41, SEBRING, FL 33871-0041
PO BOX 42, SEBRING, FL 33871-0042
PO BOX 43, SEBRING, FL 33871-0043
PO BOX 44, SEBRING, FL 33871-0044
PO BOX 45, SEBRING, FL 33871-0045
PO BOX 46, SEBRING, FL 33871-0046
PO BOX 47, SEBRING, FL 33871-0047
PO BOX 48, SEBRING, FL 33871-0048
PO BOX 49, SEBRING, FL 33871-0049
PO BOX 50, SEBRING, FL 33871-0050
PO BOX 51, SEBRING, FL 33871-0051
PO BOX 52, SEBRING, FL 33871-0052
PO BOX 53, SEBRING, FL 33871-0053
PO BOX 54, SEBRING, FL 33871-0054
PO BOX 55, SEBRING, FL 33871-0055
PO BOX 56, SEBRING, FL 33871-0056
PO BOX 57, SEBRING, FL 33871-0057
PO BOX 58, SEBRING, FL 33871-0058
PO BOX 59, SEBRING, FL 33871-0059
PO BOX 60, SEBRING, FL 33871-0060
PO BOX 61, SEBRING, FL 33871-0061
PO BOX 62, SEBRING, FL 33871-0062
PO BOX 63, SEBRING, FL 33871-0063
PO BOX 64, SEBRING, FL 33871-0064
PO BOX 65, SEBRING, FL 33871-0065
PO BOX 66, SEBRING, FL 33871-0066
PO BOX 67, SEBRING, FL 33871-0067
PO BOX 68, SEBRING, FL 33871-0068
PO BOX 69, SEBRING, FL 33871-0069
PO BOX 70, SEBRING, FL 33871-0070
PO BOX 71, SEBRING, FL 33871-0071
PO BOX 72, SEBRING, FL 33871-0072
PO BOX 73, SEBRING, FL 33871-0073
PO BOX 74, SEBRING, FL 33871-0074
PO BOX 75, SEBRING, FL 33871-0075
PO BOX 76, SEBRING, FL 33871-0076
PO BOX 77, SEBRING, FL 33871-0077
PO BOX 78, SEBRING, FL 33871-0078
PO BOX 79, SEBRING, FL 33871-0079
PO BOX 80, SEBRING, FL 33871-0080
PO BOX 81, SEBRING, FL 33871-0081
PO BOX 82, SEBRING, FL 33871-0082
PO BOX 83, SEBRING, FL 33871-0083
PO BOX 84, SEBRING, FL 33871-0084
PO BOX 85, SEBRING, FL 33871-0085
PO BOX 86, SEBRING, FL 33871-0086
PO BOX 87, SEBRING, FL 33871-0087
PO BOX 88, SEBRING, FL 33871-0088
PO BOX 89, SEBRING, FL 33871-0089
PO BOX 90, SEBRING, FL 33871-0090
PO BOX 91, SEBRING, FL 33871-0091
PO BOX 92, SEBRING, FL 33871-0092
PO BOX 93, SEBRING, FL 33871-0093
PO BOX 94, SEBRING, FL 33871-0094
PO BOX 95, SEBRING, FL 33871-0095
PO BOX 96, SEBRING, FL 33871-0096
PO BOX 97, SEBRING, FL 33871-0097
PO BOX 98, SEBRING, FL 33871-0098
PO BOX 99, SEBRING, FL 33871-0099
PO BOX 100, SEBRING, FL 33871-0100
PO BOX 101, SEBRING, FL 33871-0101
PO BOX 102, SEBRING, FL 33871-0102
PO BOX 103, SEBRING, FL 33871-0103
PO BOX 104, SEBRING, FL 33871-0104
PO BOX 105, SEBRING, FL 33871-0105
PO BOX 106, SEBRING, FL 33871-0106
PO BOX 107, SEBRING, FL 33871-0107
PO BOX 108, SEBRING, FL 33871-0108
PO BOX 109, SEBRING, FL 33871-0109
PO BOX 110, SEBRING, FL 33871-0110
PO BOX 111, SEBRING, FL 33871-0111
PO BOX 112, SEBRING, FL 33871-0112
PO BOX 113, SEBRING, FL 33871-0113
PO BOX 114, SEBRING, FL 33871-0114
PO BOX 115, SEBRING, FL 33871-0115
PO BOX 116, SEBRING, FL 33871-0116
PO BOX 117, SEBRING, FL 33871-0117
PO BOX 118, SEBRING, FL 33871-0118
PO BOX 119, SEBRING, FL 33871-0119
PO BOX 120, SEBRING, FL 33871-0120
PO BOX 121, SEBRING, FL 33871-0121
PO BOX 122, SEBRING, FL 33871-0122
PO BOX 123, SEBRING, FL 33871-0123
PO BOX 124, SEBRING, FL 33871-0124
PO BOX 125, SEBRING, FL 33871-0125
PO BOX 126, SEBRING, FL 33871-0126
PO BOX 127, SEBRING, FL 33871-0127
PO BOX 128, SEBRING, FL 33871-0128
PO BOX 129, SEBRING, FL 33871-0129
PO BOX 130, SEBRING, FL 33871-0130
PO BOX 131, SEBRING, FL 33871-0131
PO BOX 132, SEBRING, FL 33871-0132
PO BOX 133, SEBRING, FL 33871-0133
PO BOX 134, SEBRING, FL 33871-0134
PO BOX 135, SEBRING, FL 33871-0135
PO BOX 136, SEBRING, FL 33871-0136
PO BOX 137, SEBRING, FL 33871-0137
PO BOX 138, SEBRING, FL 33871-0138
PO BOX 139, SEBRING, FL 33871-0139
PO BOX 140, SEBRING, FL 33871-0140
PO BOX 141, SEBRING, FL 33871-0141
PO BOX 142, SEBRING, FL 33871-0142
PO BOX 143, SEBRING, FL 33871-0143
PO BOX 144, SEBRING, FL 33871-0144
PO BOX 145, SEBRING, FL 33871-0145
PO BOX 146, SEBRING, FL 33871-0146
PO BOX 147, SEBRING, FL 33871-0147
PO BOX 148, SEBRING, FL 33871-0148
PO BOX 149, SEBRING, FL 33871-0149
PO BOX 150, SEBRING, FL 33871-0150
PO BOX 151, SEBRING, FL 33871-0151
PO BOX 152, SEBRING, FL 33871-0152
PO BOX 153, SEBRING, FL 33871-0153
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