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 69, SUMMERFIELD, OH 43788-0069
PO BOX 70, SUMMERFIELD, OH 43788-0070
PO BOX 71, SUMMERFIELD, OH 43788-0071
PO BOX 72, SUMMERFIELD, OH 43788-0072
PO BOX 73, SUMMERFIELD, OH 43788-0073
PO BOX 74, SUMMERFIELD, OH 43788-0074
PO BOX 75, SUMMERFIELD, OH 43788-0075
PO BOX 76, SUMMERFIELD, OH 43788-0076
PO BOX 77, SUMMERFIELD, OH 43788-0077
PO BOX 78, SUMMERFIELD, OH 43788-0078
PO BOX 79, SUMMERFIELD, OH 43788-0079
PO BOX 80, SUMMERFIELD, OH 43788-0080
PO BOX 81, SUMMERFIELD, OH 43788-0081
PO BOX 82, SUMMERFIELD, OH 43788-0082
PO BOX 83, SUMMERFIELD, OH 43788-0083
PO BOX 84, SUMMERFIELD, OH 43788-0084
PO BOX 85, SUMMERFIELD, OH 43788-0085
PO BOX 86, SUMMERFIELD, OH 43788-0086
PO BOX 87, SUMMERFIELD, OH 43788-0087
PO BOX 88, SUMMERFIELD, OH 43788-0088
PO BOX 89, SUMMERFIELD, OH 43788-0089
PO BOX 90, SUMMERFIELD, OH 43788-0090
PO BOX 91, SUMMERFIELD, OH 43788-0091
PO BOX 92, SUMMERFIELD, OH 43788-0092
PO BOX 93, SUMMERFIELD, OH 43788-0093
PO BOX 94, SUMMERFIELD, OH 43788-0094
PO BOX 95, SUMMERFIELD, OH 43788-0095
PO BOX 96, SUMMERFIELD, OH 43788-0096
PO BOX 97, SUMMERFIELD, OH 43788-0097
PO BOX 98, SUMMERFIELD, OH 43788-0098
PO BOX 99, SUMMERFIELD, OH 43788-0099
PO BOX 100, SUMMERFIELD, OH 43788-0100
PO BOX 101, SUMMERFIELD, OH 43788-0101
PO BOX 102, SUMMERFIELD, OH 43788-0102
PO BOX 103, SUMMERFIELD, OH 43788-0103
PO BOX 104, SUMMERFIELD, OH 43788-0104
PO BOX 105, SUMMERFIELD, OH 43788-0105
PO BOX 106, SUMMERFIELD, OH 43788-0106
PO BOX 107, SUMMERFIELD, OH 43788-0107
PO BOX 108, SUMMERFIELD, OH 43788-0108
PO BOX 109, SUMMERFIELD, OH 43788-0109
PO BOX 110, SUMMERFIELD, OH 43788-0110
PO BOX 111, SUMMERFIELD, OH 43788-0111
PO BOX 112, SUMMERFIELD, OH 43788-0112
PO BOX 113, SUMMERFIELD, OH 43788-0113
PO BOX 114, SUMMERFIELD, OH 43788-0114
PO BOX 115, SUMMERFIELD, OH 43788-0115
PO BOX 116, SUMMERFIELD, OH 43788-0116
PO BOX 117, SUMMERFIELD, OH 43788-0117
PO BOX 118, SUMMERFIELD, OH 43788-0118
PO BOX 119, SUMMERFIELD, OH 43788-0119
PO BOX 120, SUMMERFIELD, OH 43788-0120
PO BOX 121, SUMMERFIELD, OH 43788-0121
PO BOX 122, SUMMERFIELD, OH 43788-0122
PO BOX 123, SUMMERFIELD, OH 43788-0123
PO BOX 124, SUMMERFIELD, OH 43788-0124
PO BOX 125, SUMMERFIELD, OH 43788-0125
PO BOX 126, SUMMERFIELD, OH 43788-0126
PO BOX 127, SUMMERFIELD, OH 43788-0127
PO BOX 128, SUMMERFIELD, OH 43788-0128
PO BOX 129, SUMMERFIELD, OH 43788-0129
PO BOX 130, SUMMERFIELD, OH 43788-0130
PO BOX 131, SUMMERFIELD, OH 43788-0131
PO BOX 132, SUMMERFIELD, OH 43788-0132
PO BOX 133, SUMMERFIELD, OH 43788-0133
PO BOX 134, SUMMERFIELD, OH 43788-0134
PO BOX 135, SUMMERFIELD, OH 43788-0135
PO BOX 136, SUMMERFIELD, OH 43788-0136
PO BOX 137, SUMMERFIELD, OH 43788-0137
PO BOX 138, SUMMERFIELD, OH 43788-0138
PO BOX 139, SUMMERFIELD, OH 43788-0139
PO BOX 140, SUMMERFIELD, OH 43788-0140
PO BOX 141, SUMMERFIELD, OH 43788-0141
PO BOX 142, SUMMERFIELD, OH 43788-0142
PO BOX 143, SUMMERFIELD, OH 43788-0143
PO BOX 144, SUMMERFIELD, OH 43788-0144
PO BOX 145, SUMMERFIELD, OH 43788-0145
PO BOX 146, SUMMERFIELD, OH 43788-0146
PO BOX 147, SUMMERFIELD, OH 43788-0147
PO BOX 148, SUMMERFIELD, OH 43788-0148
PO BOX 149, SUMMERFIELD, OH 43788-0149
PO BOX 150, SUMMERFIELD, OH 43788-0150
PO BOX 151, SUMMERFIELD, OH 43788-0151
PO BOX 152, SUMMERFIELD, OH 43788-0152
PO BOX 153, SUMMERFIELD, OH 43788-0153
PO BOX 154, SUMMERFIELD, OH 43788-0154
PO BOX 155, SUMMERFIELD, OH 43788-0155
PO BOX 156, SUMMERFIELD, OH 43788-0156
PO BOX 157, SUMMERFIELD, OH 43788-0157
PO BOX 158, SUMMERFIELD, OH 43788-0158
PO BOX 159, SUMMERFIELD, OH 43788-0159
PO BOX 160, SUMMERFIELD, OH 43788-0160
PO BOX 161, SUMMERFIELD, OH 43788-0161
PO BOX 162, SUMMERFIELD, OH 43788-0162
PO BOX 163, SUMMERFIELD, OH 43788-0163
PO BOX 164, SUMMERFIELD, OH 43788-0164
PO BOX 165, SUMMERFIELD, OH 43788-0165
PO BOX 166, SUMMERFIELD, OH 43788-0166
PO BOX 167, SUMMERFIELD, OH 43788-0167
PO BOX 168, SUMMERFIELD, OH 43788-0168
PO BOX 169, SUMMERFIELD, OH 43788-0169
PO BOX 170, SUMMERFIELD, OH 43788-0170
PO BOX 171, SUMMERFIELD, OH 43788-0171
PO BOX 172, SUMMERFIELD, OH 43788-0172
PO BOX 173, SUMMERFIELD, OH 43788-0173
PO BOX 174, SUMMERFIELD, OH 43788-0174
PO BOX 175, SUMMERFIELD, OH 43788-0175
PO BOX 176, SUMMERFIELD, OH 43788-0176
PO BOX 177, SUMMERFIELD, OH 43788-0177
PO BOX 178, SUMMERFIELD, OH 43788-0178
PO BOX 179, SUMMERFIELD, OH 43788-0179
PO BOX 180, SUMMERFIELD, OH 43788-0180
PO BOX 181, SUMMERFIELD, OH 43788-0181
PO BOX 182, SUMMERFIELD, OH 43788-0182
PO BOX 183, SUMMERFIELD, OH 43788-0183
PO BOX 184, SUMMERFIELD, OH 43788-0184
PO BOX 185, SUMMERFIELD, OH 43788-0185
PO BOX 186, SUMMERFIELD, OH 43788-0186
PO BOX 187, SUMMERFIELD, OH 43788-0187
PO BOX 188, SUMMERFIELD, OH 43788-0188
PO BOX 189, SUMMERFIELD, OH 43788-0189
PO BOX 190, SUMMERFIELD, OH 43788-0190
PO BOX 191, SUMMERFIELD, OH 43788-0191
PO BOX 192, SUMMERFIELD, OH 43788-0192
PO BOX 193, SUMMERFIELD, OH 43788-0193
PO BOX 194, SUMMERFIELD, OH 43788-0194
PO BOX 195, SUMMERFIELD, OH 43788-0195
PO BOX 196, SUMMERFIELD, OH 43788-0196
PO BOX 197, SUMMERFIELD, OH 43788-0197
PO BOX 198, SUMMERFIELD, OH 43788-0198
PO BOX 199, SUMMERFIELD, OH 43788-0199
PO BOX 200, SUMMERFIELD, OH 43788-0200
PO BOX 201, SUMMERFIELD, OH 43788-0201
PO BOX 202, SUMMERFIELD, OH 43788-0202
PO BOX 203, SUMMERFIELD, OH 43788-0203
PO BOX 204, SUMMERFIELD, OH 43788-0204
PO BOX 205, SUMMERFIELD, OH 43788-0205
PO BOX 206, SUMMERFIELD, OH 43788-0206
PO BOX 207, SUMMERFIELD, OH 43788-0207
PO BOX 208, SUMMERFIELD, OH 43788-0208
PO BOX 209, SUMMERFIELD, OH 43788-0209
PO BOX 210, SUMMERFIELD, OH 43788-0210
PO BOX 211, SUMMERFIELD, OH 43788-0211
PO BOX 212, SUMMERFIELD, OH 43788-0212
PO BOX 213, SUMMERFIELD, OH 43788-0213
PO BOX 214, SUMMERFIELD, OH 43788-0214
PO BOX 215, SUMMERFIELD, OH 43788-0215
PO BOX 216, SUMMERFIELD, OH 43788-0216
PO BOX 217, SUMMERFIELD, OH 43788-0217
PO BOX 218, SUMMERFIELD, OH 43788-0218
PO BOX 219, SUMMERFIELD, OH 43788-0219
PO BOX 220, SUMMERFIELD, OH 43788-0220
PO BOX 221, SUMMERFIELD, OH 43788-0221
PO BOX 222, SUMMERFIELD, OH 43788-0222
PO BOX 223, SUMMERFIELD, OH 43788-0223
PO BOX 224, SUMMERFIELD, OH 43788-0224
PO BOX 225, SUMMERFIELD, OH 43788-0225
PO BOX 226, SUMMERFIELD, OH 43788-0226
PO BOX 227, SUMMERFIELD, OH 43788-0227
PO BOX 228, SUMMERFIELD, OH 43788-0228
PO BOX 229, SUMMERFIELD, OH 43788-0229
PO BOX 230, SUMMERFIELD, OH 43788-0230
PO BOX 231, SUMMERFIELD, OH 43788-0231
PO BOX 232, SUMMERFIELD, OH 43788-0232
PO BOX 233, SUMMERFIELD, OH 43788-0233
PO BOX 234, SUMMERFIELD, OH 43788-0234
PO BOX 235, SUMMERFIELD, OH 43788-0235
PO BOX 236, SUMMERFIELD, OH 43788-0236
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