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 91, FORDLAND, MO 65652-0091
PO BOX 92, FORDLAND, MO 65652-0092
PO BOX 93, FORDLAND, MO 65652-0093
PO BOX 94, FORDLAND, MO 65652-0094
PO BOX 95, FORDLAND, MO 65652-0095
PO BOX 96, FORDLAND, MO 65652-0096
PO BOX 97, FORDLAND, MO 65652-0097
PO BOX 98, FORDLAND, MO 65652-0098
PO BOX 99, FORDLAND, MO 65652-0099
PO BOX 100, FORDLAND, MO 65652-0100
PO BOX 101, FORDLAND, MO 65652-0101
PO BOX 102, FORDLAND, MO 65652-0102
PO BOX 103, FORDLAND, MO 65652-0103
PO BOX 104, FORDLAND, MO 65652-0104
PO BOX 105, FORDLAND, MO 65652-0105
PO BOX 106, FORDLAND, MO 65652-0106
PO BOX 107, FORDLAND, MO 65652-0107
PO BOX 108, FORDLAND, MO 65652-0108
PO BOX 109, FORDLAND, MO 65652-0109
PO BOX 110, FORDLAND, MO 65652-0110
PO BOX 111, FORDLAND, MO 65652-0111
PO BOX 112, FORDLAND, MO 65652-0112
PO BOX 113, FORDLAND, MO 65652-0113
PO BOX 114, FORDLAND, MO 65652-0114
PO BOX 115, FORDLAND, MO 65652-0115
PO BOX 116, FORDLAND, MO 65652-0116
PO BOX 117, FORDLAND, MO 65652-0117
PO BOX 118, FORDLAND, MO 65652-0118
PO BOX 119, FORDLAND, MO 65652-0119
PO BOX 120, FORDLAND, MO 65652-0120
PO BOX 121, FORDLAND, MO 65652-0121
PO BOX 122, FORDLAND, MO 65652-0122
PO BOX 123, FORDLAND, MO 65652-0123
PO BOX 124, FORDLAND, MO 65652-0124
PO BOX 125, FORDLAND, MO 65652-0125
PO BOX 126, FORDLAND, MO 65652-0126
PO BOX 127, FORDLAND, MO 65652-0127
PO BOX 128, FORDLAND, MO 65652-0128
PO BOX 129, FORDLAND, MO 65652-0129
PO BOX 130, FORDLAND, MO 65652-0130
PO BOX 131, FORDLAND, MO 65652-0131
PO BOX 132, FORDLAND, MO 65652-0132
PO BOX 133, FORDLAND, MO 65652-0133
PO BOX 134, FORDLAND, MO 65652-0134
PO BOX 135, FORDLAND, MO 65652-0135
PO BOX 136, FORDLAND, MO 65652-0136
PO BOX 137, FORDLAND, MO 65652-0137
PO BOX 138, FORDLAND, MO 65652-0138
PO BOX 139, FORDLAND, MO 65652-0139
PO BOX 140, FORDLAND, MO 65652-0140
PO BOX 141, FORDLAND, MO 65652-0141
PO BOX 142, FORDLAND, MO 65652-0142
PO BOX 143, FORDLAND, MO 65652-0143
PO BOX 144, FORDLAND, MO 65652-0144
PO BOX 145, FORDLAND, MO 65652-0145
PO BOX 146, FORDLAND, MO 65652-0146
PO BOX 147, FORDLAND, MO 65652-0147
PO BOX 148, FORDLAND, MO 65652-0148
PO BOX 149, FORDLAND, MO 65652-0149
PO BOX 150, FORDLAND, MO 65652-0150
PO BOX 151, FORDLAND, MO 65652-0151
PO BOX 152, FORDLAND, MO 65652-0152
PO BOX 153, FORDLAND, MO 65652-0153
PO BOX 154, FORDLAND, MO 65652-0154
PO BOX 155, FORDLAND, MO 65652-0155
PO BOX 156, FORDLAND, MO 65652-0156
PO BOX 157, FORDLAND, MO 65652-0157
PO BOX 158, FORDLAND, MO 65652-0158
PO BOX 159, FORDLAND, MO 65652-0159
PO BOX 160, FORDLAND, MO 65652-0160
PO BOX 161, FORDLAND, MO 65652-0161
PO BOX 162, FORDLAND, MO 65652-0162
PO BOX 163, FORDLAND, MO 65652-0163
PO BOX 164, FORDLAND, MO 65652-0164
PO BOX 165, FORDLAND, MO 65652-0165
PO BOX 166, FORDLAND, MO 65652-0166
PO BOX 167, FORDLAND, MO 65652-0167
PO BOX 168, FORDLAND, MO 65652-0168
PO BOX 169, FORDLAND, MO 65652-0169
PO BOX 170, FORDLAND, MO 65652-0170
PO BOX 171, FORDLAND, MO 65652-0171
PO BOX 172, FORDLAND, MO 65652-0172
PO BOX 173, FORDLAND, MO 65652-0173
PO BOX 174, FORDLAND, MO 65652-0174
PO BOX 175, FORDLAND, MO 65652-0175
PO BOX 176, FORDLAND, MO 65652-0176
PO BOX 177, FORDLAND, MO 65652-0177
PO BOX 178, FORDLAND, MO 65652-0178
PO BOX 179, FORDLAND, MO 65652-0179
PO BOX 180, FORDLAND, MO 65652-0180
PO BOX 181, FORDLAND, MO 65652-0181
PO BOX 182, FORDLAND, MO 65652-0182
PO BOX 183, FORDLAND, MO 65652-0183
PO BOX 184, FORDLAND, MO 65652-0184
PO BOX 185, FORDLAND, MO 65652-0185
PO BOX 186, FORDLAND, MO 65652-0186
PO BOX 187, FORDLAND, MO 65652-0187
PO BOX 188, FORDLAND, MO 65652-0188
PO BOX 189, FORDLAND, MO 65652-0189
PO BOX 190, FORDLAND, MO 65652-0190
PO BOX 191, FORDLAND, MO 65652-0191
PO BOX 192, FORDLAND, MO 65652-0192
PO BOX 193, FORDLAND, MO 65652-0193
PO BOX 194, FORDLAND, MO 65652-0194
PO BOX 195, FORDLAND, MO 65652-0195
PO BOX 196, FORDLAND, MO 65652-0196
PO BOX 197, FORDLAND, MO 65652-0197
PO BOX 198, FORDLAND, MO 65652-0198
PO BOX 199, FORDLAND, MO 65652-0199
PO BOX 200, FORDLAND, MO 65652-0200
PO BOX 201, FORDLAND, MO 65652-0201
PO BOX 202, FORDLAND, MO 65652-0202
PO BOX 203, FORDLAND, MO 65652-0203
PO BOX 204, FORDLAND, MO 65652-0204
PO BOX 205, FORDLAND, MO 65652-0205
PO BOX 206, FORDLAND, MO 65652-0206
PO BOX 207, FORDLAND, MO 65652-0207
PO BOX 208, FORDLAND, MO 65652-0208
PO BOX 209, FORDLAND, MO 65652-0209
PO BOX 210, FORDLAND, MO 65652-0210
PO BOX 211, FORDLAND, MO 65652-0211
PO BOX 212, FORDLAND, MO 65652-0212
PO BOX 213, FORDLAND, MO 65652-0213
PO BOX 214, FORDLAND, MO 65652-0214
PO BOX 215, FORDLAND, MO 65652-0215
PO BOX 216, FORDLAND, MO 65652-0216
PO BOX 217, FORDLAND, MO 65652-0217
PO BOX 218, FORDLAND, MO 65652-0218
PO BOX 219, FORDLAND, MO 65652-0219
PO BOX 220, FORDLAND, MO 65652-0220
PO BOX 221, FORDLAND, MO 65652-0221
PO BOX 222, FORDLAND, MO 65652-0222
PO BOX 223, FORDLAND, MO 65652-0223
PO BOX 224, FORDLAND, MO 65652-0224
PO BOX 225, FORDLAND, MO 65652-0225
PO BOX 226, FORDLAND, MO 65652-0226
PO BOX 227, FORDLAND, MO 65652-0227
PO BOX 228, FORDLAND, MO 65652-0228
PO BOX 229, FORDLAND, MO 65652-0229
PO BOX 230, FORDLAND, MO 65652-0230
PO BOX 231, FORDLAND, MO 65652-0231
PO BOX 232, FORDLAND, MO 65652-0232
PO BOX 233, FORDLAND, MO 65652-0233
PO BOX 234, FORDLAND, MO 65652-0234
PO BOX 235, FORDLAND, MO 65652-0235
PO BOX 236, FORDLAND, MO 65652-0236
PO BOX 237, FORDLAND, MO 65652-0237
PO BOX 238, FORDLAND, MO 65652-0238
PO BOX 239, FORDLAND, MO 65652-0239
PO BOX 240, FORDLAND, MO 65652-0240
PO BOX 241, FORDLAND, MO 65652-0241
PO BOX 242, FORDLAND, MO 65652-0242
PO BOX 243, FORDLAND, MO 65652-0243
PO BOX 244, FORDLAND, MO 65652-0244
PO BOX 245, FORDLAND, MO 65652-0245
PO BOX 246, FORDLAND, MO 65652-0246
PO BOX 247, FORDLAND, MO 65652-0247
PO BOX 248, FORDLAND, MO 65652-0248
PO BOX 249, FORDLAND, MO 65652-0249
PO BOX 250, FORDLAND, MO 65652-0250
PO BOX 251, FORDLAND, MO 65652-0251
PO BOX 252, FORDLAND, MO 65652-0252
PO BOX 253, FORDLAND, MO 65652-0253
PO BOX 254, FORDLAND, MO 65652-0254
PO BOX 255, FORDLAND, MO 65652-0255
PO BOX 256, FORDLAND, MO 65652-0256
PO BOX 257, FORDLAND, MO 65652-0257
PO BOX 258, FORDLAND, MO 65652-0258
PO BOX 259, FORDLAND, MO 65652-0259
PO BOX 260, FORDLAND, MO 65652-0260
PO BOX 261, FORDLAND, MO 65652-0261
PO BOX 262, FORDLAND, MO 65652-0262
PO BOX 263, FORDLAND, MO 65652-0263
PO BOX 264, FORDLAND, MO 65652-0264
PO BOX 265, FORDLAND, MO 65652-0265
PO BOX 266, FORDLAND, MO 65652-0266
PO BOX 267, FORDLAND, MO 65652-0267
PO BOX 268, FORDLAND, MO 65652-0268
PO BOX 269, FORDLAND, MO 65652-0269
PO BOX 270, FORDLAND, MO 65652-0270
PO BOX 271, FORDLAND, MO 65652-0271
PO BOX 272, FORDLAND, MO 65652-0272
PO BOX 273, FORDLAND, MO 65652-0273
PO BOX 274, FORDLAND, MO 65652-0274
PO BOX 275, FORDLAND, MO 65652-0275
PO BOX 276, FORDLAND, MO 65652-0276
PO BOX 277, FORDLAND, MO 65652-0277
PO BOX 278, FORDLAND, MO 65652-0278
PO BOX 279, FORDLAND, MO 65652-0279
PO BOX 280, FORDLAND, MO 65652-0280
PO BOX 281, FORDLAND, MO 65652-0281
PO BOX 282, FORDLAND, MO 65652-0282
PO BOX 283, FORDLAND, MO 65652-0283
PO BOX 284, FORDLAND, MO 65652-0284
PO BOX 285, FORDLAND, MO 65652-0285
PO BOX 286, FORDLAND, MO 65652-0286
PO BOX 287, FORDLAND, MO 65652-0287
PO BOX 288, FORDLAND, MO 65652-0288
PO BOX 289, FORDLAND, MO 65652-0289
PO BOX 290, FORDLAND, MO 65652-0290
PO BOX 291, FORDLAND, MO 65652-0291