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, WILMINGTON, NC 28402-0001
PO BOX 2, WILMINGTON, NC 28402-0002
PO BOX 3, WILMINGTON, NC 28402-0003
PO BOX 4, WILMINGTON, NC 28402-0004
PO BOX 5, WILMINGTON, NC 28402-0005
PO BOX 6, WILMINGTON, NC 28402-0006
PO BOX 7, WILMINGTON, NC 28402-0007
PO BOX 8, WILMINGTON, NC 28402-0008
PO BOX 9, WILMINGTON, NC 28402-0009
PO BOX 10, WILMINGTON, NC 28402-0010
PO BOX 11, WILMINGTON, NC 28402-0011
PO BOX 12, WILMINGTON, NC 28402-0012
PO BOX 13, WILMINGTON, NC 28402-0013
PO BOX 14, WILMINGTON, NC 28402-0014
PO BOX 15, WILMINGTON, NC 28402-0015
PO BOX 16, WILMINGTON, NC 28402-0016
PO BOX 17, WILMINGTON, NC 28402-0017
PO BOX 18, WILMINGTON, NC 28402-0018
PO BOX 19, WILMINGTON, NC 28402-0019
PO BOX 20, WILMINGTON, NC 28402-0020
PO BOX 21, WILMINGTON, NC 28402-0021
PO BOX 22, WILMINGTON, NC 28402-0022
PO BOX 23, WILMINGTON, NC 28402-0023
PO BOX 24, WILMINGTON, NC 28402-0024
PO BOX 25, WILMINGTON, NC 28402-0025
PO BOX 26, WILMINGTON, NC 28402-0026
PO BOX 27, WILMINGTON, NC 28402-0027
PO BOX 28, WILMINGTON, NC 28402-0028
PO BOX 29, WILMINGTON, NC 28402-0029
PO BOX 30, WILMINGTON, NC 28402-0030
PO BOX 31, WILMINGTON, NC 28402-0031
PO BOX 32, WILMINGTON, NC 28402-0032
PO BOX 33, WILMINGTON, NC 28402-0033
PO BOX 34, WILMINGTON, NC 28402-0034
PO BOX 35, WILMINGTON, NC 28402-0035
PO BOX 36, WILMINGTON, NC 28402-0036
PO BOX 37, WILMINGTON, NC 28402-0037
PO BOX 38, WILMINGTON, NC 28402-0038
PO BOX 39, WILMINGTON, NC 28402-0039
PO BOX 40, WILMINGTON, NC 28402-0040
PO BOX 41, WILMINGTON, NC 28402-0041
PO BOX 42, WILMINGTON, NC 28402-0042
PO BOX 43, WILMINGTON, NC 28402-0043
PO BOX 44, WILMINGTON, NC 28402-0044
PO BOX 45, WILMINGTON, NC 28402-0045
PO BOX 46, WILMINGTON, NC 28402-0046
PO BOX 47, WILMINGTON, NC 28402-0047
PO BOX 48, WILMINGTON, NC 28402-0048
PO BOX 49, WILMINGTON, NC 28402-0049
PO BOX 50, WILMINGTON, NC 28402-0050
PO BOX 51, WILMINGTON, NC 28402-0051
PO BOX 52, WILMINGTON, NC 28402-0052
PO BOX 53, WILMINGTON, NC 28402-0053
PO BOX 54, WILMINGTON, NC 28402-0054
PO BOX 55, WILMINGTON, NC 28402-0055
PO BOX 56, WILMINGTON, NC 28402-0056
PO BOX 57, WILMINGTON, NC 28402-0057
PO BOX 58, WILMINGTON, NC 28402-0058
PO BOX 59, WILMINGTON, NC 28402-0059
PO BOX 60, WILMINGTON, NC 28402-0060
PO BOX 61, WILMINGTON, NC 28402-0061
PO BOX 62, WILMINGTON, NC 28402-0062
PO BOX 63, WILMINGTON, NC 28402-0063
PO BOX 64, WILMINGTON, NC 28402-0064
PO BOX 65, WILMINGTON, NC 28402-0065
PO BOX 66, WILMINGTON, NC 28402-0066
PO BOX 67, WILMINGTON, NC 28402-0067
PO BOX 68, WILMINGTON, NC 28402-0068
PO BOX 69, WILMINGTON, NC 28402-0069
PO BOX 70, WILMINGTON, NC 28402-0070
PO BOX 71, WILMINGTON, NC 28402-0071
PO BOX 72, WILMINGTON, NC 28402-0072
PO BOX 73, WILMINGTON, NC 28402-0073
PO BOX 74, WILMINGTON, NC 28402-0074
PO BOX 75, WILMINGTON, NC 28402-0075
PO BOX 76, WILMINGTON, NC 28402-0076
PO BOX 77, WILMINGTON, NC 28402-0077
PO BOX 78, WILMINGTON, NC 28402-0078
PO BOX 79, WILMINGTON, NC 28402-0079
PO BOX 80, WILMINGTON, NC 28402-0080
PO BOX 81, WILMINGTON, NC 28402-0081
PO BOX 82, WILMINGTON, NC 28402-0082
PO BOX 83, WILMINGTON, NC 28402-0083
PO BOX 84, WILMINGTON, NC 28402-0084
PO BOX 85, WILMINGTON, NC 28402-0085
PO BOX 86, WILMINGTON, NC 28402-0086
PO BOX 87, WILMINGTON, NC 28402-0087
PO BOX 88, WILMINGTON, NC 28402-0088
PO BOX 89, WILMINGTON, NC 28402-0089
PO BOX 90, WILMINGTON, NC 28402-0090
PO BOX 91, WILMINGTON, NC 28402-0091
PO BOX 92, WILMINGTON, NC 28402-0092
PO BOX 93, WILMINGTON, NC 28402-0093
PO BOX 94, WILMINGTON, NC 28402-0094
PO BOX 95, WILMINGTON, NC 28402-0095
PO BOX 96, WILMINGTON, NC 28402-0096
PO BOX 97, WILMINGTON, NC 28402-0097
PO BOX 98, WILMINGTON, NC 28402-0098
PO BOX 99, WILMINGTON, NC 28402-0099
PO BOX 100, WILMINGTON, NC 28402-0100
PO BOX 101, WILMINGTON, NC 28402-0101
PO BOX 102, WILMINGTON, NC 28402-0102
PO BOX 103, WILMINGTON, NC 28402-0103
PO BOX 104, WILMINGTON, NC 28402-0104
PO BOX 105, WILMINGTON, NC 28402-0105
PO BOX 106, WILMINGTON, NC 28402-0106
PO BOX 107, WILMINGTON, NC 28402-0107
PO BOX 108, WILMINGTON, NC 28402-0108
PO BOX 109, WILMINGTON, NC 28402-0109
PO BOX 110, WILMINGTON, NC 28402-0110
PO BOX 111, WILMINGTON, NC 28402-0111
PO BOX 112, WILMINGTON, NC 28402-0112
PO BOX 113, WILMINGTON, NC 28402-0113
PO BOX 114, WILMINGTON, NC 28402-0114
PO BOX 115, WILMINGTON, NC 28402-0115
PO BOX 116, WILMINGTON, NC 28402-0116
PO BOX 117, WILMINGTON, NC 28402-0117
PO BOX 118, WILMINGTON, NC 28402-0118
PO BOX 119, WILMINGTON, NC 28402-0119
PO BOX 120, WILMINGTON, NC 28402-0120
PO BOX 121, WILMINGTON, NC 28402-0121
PO BOX 122, WILMINGTON, NC 28402-0122
PO BOX 123, WILMINGTON, NC 28402-0123
PO BOX 124, WILMINGTON, NC 28402-0124
PO BOX 125, WILMINGTON, NC 28402-0125
PO BOX 126, WILMINGTON, NC 28402-0126
PO BOX 127, WILMINGTON, NC 28402-0127
PO BOX 128, WILMINGTON, NC 28402-0128
PO BOX 129, WILMINGTON, NC 28402-0129
PO BOX 130, WILMINGTON, NC 28402-0130
PO BOX 131, WILMINGTON, NC 28402-0131
PO BOX 132, WILMINGTON, NC 28402-0132
PO BOX 133, WILMINGTON, NC 28402-0133
PO BOX 134, WILMINGTON, NC 28402-0134
PO BOX 135, WILMINGTON, NC 28402-0135
PO BOX 136, WILMINGTON, NC 28402-0136
PO BOX 137, WILMINGTON, NC 28402-0137
PO BOX 138, WILMINGTON, NC 28402-0138
PO BOX 139, WILMINGTON, NC 28402-0139
PO BOX 140, WILMINGTON, NC 28402-0140
PO BOX 141, WILMINGTON, NC 28402-0141
PO BOX 142, WILMINGTON, NC 28402-0142
PO BOX 143, WILMINGTON, NC 28402-0143
PO BOX 144, WILMINGTON, NC 28402-0144
PO BOX 145, WILMINGTON, NC 28402-0145
PO BOX 146, WILMINGTON, NC 28402-0146
PO BOX 147, WILMINGTON, NC 28402-0147
PO BOX 148, WILMINGTON, NC 28402-0148
PO BOX 149, WILMINGTON, NC 28402-0149
PO BOX 150, WILMINGTON, NC 28402-0150
PO BOX 151, WILMINGTON, NC 28402-0151
PO BOX 152, WILMINGTON, NC 28402-0152
PO BOX 153, WILMINGTON, NC 28402-0153
PO BOX 154, WILMINGTON, NC 28402-0154
PO BOX 155, WILMINGTON, NC 28402-0155
PO BOX 156, WILMINGTON, NC 28402-0156
PO BOX 157, WILMINGTON, NC 28402-0157
PO BOX 158, WILMINGTON, NC 28402-0158
PO BOX 159, WILMINGTON, NC 28402-0159
PO BOX 160, WILMINGTON, NC 28402-0160
PO BOX 161, WILMINGTON, NC 28402-0161
PO BOX 162, WILMINGTON, NC 28402-0162
PO BOX 163, WILMINGTON, NC 28402-0163
PO BOX 164, WILMINGTON, NC 28402-0164
PO BOX 165, WILMINGTON, NC 28402-0165
PO BOX 166, WILMINGTON, NC 28402-0166
PO BOX 167, WILMINGTON, NC 28402-0167
PO BOX 168, WILMINGTON, NC 28402-0168
PO BOX 169, WILMINGTON, NC 28402-0169
PO BOX 170, WILMINGTON, NC 28402-0170
PO BOX 171, WILMINGTON, NC 28402-0171
PO BOX 172, WILMINGTON, NC 28402-0172
PO BOX 173, WILMINGTON, NC 28402-0173
PO BOX 174, WILMINGTON, NC 28402-0174
PO BOX 175, WILMINGTON, NC 28402-0175
PO BOX 176, WILMINGTON, NC 28402-0176
PO BOX 177, WILMINGTON, NC 28402-0177
PO BOX 178, WILMINGTON, NC 28402-0178
PO BOX 179, WILMINGTON, NC 28402-0179
PO BOX 180, WILMINGTON, NC 28402-0180
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