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 101, PLATTE CENTER, NE 68653-0101
PO BOX 102, PLATTE CENTER, NE 68653-0102
PO BOX 103, PLATTE CENTER, NE 68653-0103
PO BOX 104, PLATTE CENTER, NE 68653-0104
PO BOX 105, PLATTE CENTER, NE 68653-0105
PO BOX 106, PLATTE CENTER, NE 68653-0106
PO BOX 107, PLATTE CENTER, NE 68653-0107
PO BOX 108, PLATTE CENTER, NE 68653-0108
PO BOX 109, PLATTE CENTER, NE 68653-0109
PO BOX 110, PLATTE CENTER, NE 68653-0110
PO BOX 111, PLATTE CENTER, NE 68653-0111
PO BOX 112, PLATTE CENTER, NE 68653-0112
PO BOX 113, PLATTE CENTER, NE 68653-0113
PO BOX 114, PLATTE CENTER, NE 68653-0114
PO BOX 115, PLATTE CENTER, NE 68653-0115
PO BOX 116, PLATTE CENTER, NE 68653-0116
PO BOX 117, PLATTE CENTER, NE 68653-0117
PO BOX 118, PLATTE CENTER, NE 68653-0118
PO BOX 119, PLATTE CENTER, NE 68653-0119
PO BOX 120, PLATTE CENTER, NE 68653-0120
PO BOX 121, PLATTE CENTER, NE 68653-0121
PO BOX 122, PLATTE CENTER, NE 68653-0122
PO BOX 123, PLATTE CENTER, NE 68653-0123
PO BOX 124, PLATTE CENTER, NE 68653-0124
PO BOX 125, PLATTE CENTER, NE 68653-0125
PO BOX 126, PLATTE CENTER, NE 68653-0126
PO BOX 127, PLATTE CENTER, NE 68653-0127
PO BOX 128, PLATTE CENTER, NE 68653-0128
PO BOX 129, PLATTE CENTER, NE 68653-0129
PO BOX 130, PLATTE CENTER, NE 68653-0130
PO BOX 131, PLATTE CENTER, NE 68653-0131
PO BOX 132, PLATTE CENTER, NE 68653-0132
PO BOX 133, PLATTE CENTER, NE 68653-0133
PO BOX 134, PLATTE CENTER, NE 68653-0134
PO BOX 135, PLATTE CENTER, NE 68653-0135
PO BOX 136, PLATTE CENTER, NE 68653-0136
PO BOX 137, PLATTE CENTER, NE 68653-0137
PO BOX 138, PLATTE CENTER, NE 68653-0138
PO BOX 139, PLATTE CENTER, NE 68653-0139
PO BOX 140, PLATTE CENTER, NE 68653-0140
PO BOX 141, PLATTE CENTER, NE 68653-0141
PO BOX 142, PLATTE CENTER, NE 68653-0142
PO BOX 143, PLATTE CENTER, NE 68653-0143
PO BOX 144, PLATTE CENTER, NE 68653-0144
PO BOX 145, PLATTE CENTER, NE 68653-0145
PO BOX 146, PLATTE CENTER, NE 68653-0146
PO BOX 147, PLATTE CENTER, NE 68653-0147
PO BOX 148, PLATTE CENTER, NE 68653-0148
PO BOX 149, PLATTE CENTER, NE 68653-0149
PO BOX 150, PLATTE CENTER, NE 68653-0150
PO BOX 151, PLATTE CENTER, NE 68653-0151
PO BOX 152, PLATTE CENTER, NE 68653-0152
PO BOX 153, PLATTE CENTER, NE 68653-0153
PO BOX 154, PLATTE CENTER, NE 68653-0154
PO BOX 155, PLATTE CENTER, NE 68653-0155
PO BOX 156, PLATTE CENTER, NE 68653-0156
PO BOX 157, PLATTE CENTER, NE 68653-0157
PO BOX 158, PLATTE CENTER, NE 68653-0158
PO BOX 159, PLATTE CENTER, NE 68653-0159
PO BOX 160, PLATTE CENTER, NE 68653-0160
PO BOX 161, PLATTE CENTER, NE 68653-0161
PO BOX 162, PLATTE CENTER, NE 68653-0162
PO BOX 163, PLATTE CENTER, NE 68653-0163
PO BOX 164, PLATTE CENTER, NE 68653-0164
PO BOX 165, PLATTE CENTER, NE 68653-0165
PO BOX 166, PLATTE CENTER, NE 68653-0166
PO BOX 167, PLATTE CENTER, NE 68653-0167
PO BOX 168, PLATTE CENTER, NE 68653-0168
PO BOX 169, PLATTE CENTER, NE 68653-0169
PO BOX 170, PLATTE CENTER, NE 68653-0170
PO BOX 171, PLATTE CENTER, NE 68653-0171
PO BOX 172, PLATTE CENTER, NE 68653-0172
PO BOX 173, PLATTE CENTER, NE 68653-0173
PO BOX 174, PLATTE CENTER, NE 68653-0174
PO BOX 175, PLATTE CENTER, NE 68653-0175
PO BOX 176, PLATTE CENTER, NE 68653-0176
PO BOX 177, PLATTE CENTER, NE 68653-0177
PO BOX 178, PLATTE CENTER, NE 68653-0178
PO BOX 179, PLATTE CENTER, NE 68653-0179
PO BOX 180, PLATTE CENTER, NE 68653-0180
PO BOX 181, PLATTE CENTER, NE 68653-0181
PO BOX 182, PLATTE CENTER, NE 68653-0182
PO BOX 183, PLATTE CENTER, NE 68653-0183
PO BOX 184, PLATTE CENTER, NE 68653-0184
PO BOX 185, PLATTE CENTER, NE 68653-0185
PO BOX 186, PLATTE CENTER, NE 68653-0186
PO BOX 187, PLATTE CENTER, NE 68653-0187
PO BOX 188, PLATTE CENTER, NE 68653-0188
PO BOX 189, PLATTE CENTER, NE 68653-0189
PO BOX 190, PLATTE CENTER, NE 68653-0190
PO BOX 191, PLATTE CENTER, NE 68653-0191
PO BOX 192, PLATTE CENTER, NE 68653-0192
PO BOX 193, PLATTE CENTER, NE 68653-0193
PO BOX 194, PLATTE CENTER, NE 68653-0194
PO BOX 195, PLATTE CENTER, NE 68653-0195
PO BOX 196, PLATTE CENTER, NE 68653-0196
PO BOX 197, PLATTE CENTER, NE 68653-0197
PO BOX 198, PLATTE CENTER, NE 68653-0198
PO BOX 199, PLATTE CENTER, NE 68653-0199
PO BOX 200, PLATTE CENTER, NE 68653-0200
PO BOX 201, PLATTE CENTER, NE 68653-0201
PO BOX 202, PLATTE CENTER, NE 68653-0202
PO BOX 203, PLATTE CENTER, NE 68653-0203
PO BOX 204, PLATTE CENTER, NE 68653-0204
PO BOX 205, PLATTE CENTER, NE 68653-0205
PO BOX 206, PLATTE CENTER, NE 68653-0206
PO BOX 207, PLATTE CENTER, NE 68653-0207
PO BOX 208, PLATTE CENTER, NE 68653-0208
PO BOX 209, PLATTE CENTER, NE 68653-0209
PO BOX 210, PLATTE CENTER, NE 68653-0210
PO BOX 211, PLATTE CENTER, NE 68653-0211
PO BOX 212, PLATTE CENTER, NE 68653-0212
PO BOX 213, PLATTE CENTER, NE 68653-0213
PO BOX 214, PLATTE CENTER, NE 68653-0214
PO BOX 215, PLATTE CENTER, NE 68653-0215
PO BOX 216, PLATTE CENTER, NE 68653-0216
PO BOX 217, PLATTE CENTER, NE 68653-0217
PO BOX 218, PLATTE CENTER, NE 68653-0218
PO BOX 219, PLATTE CENTER, NE 68653-0219
PO BOX 220, PLATTE CENTER, NE 68653-0220
PO BOX 221, PLATTE CENTER, NE 68653-0221
PO BOX 222, PLATTE CENTER, NE 68653-0222
PO BOX 223, PLATTE CENTER, NE 68653-0223
PO BOX 224, PLATTE CENTER, NE 68653-0224
PO BOX 225, PLATTE CENTER, NE 68653-0225
PO BOX 226, PLATTE CENTER, NE 68653-0226
PO BOX 227, PLATTE CENTER, NE 68653-0227
PO BOX 228, PLATTE CENTER, NE 68653-0228
PO BOX 229, PLATTE CENTER, NE 68653-0229
PO BOX 230, PLATTE CENTER, NE 68653-0230
PO BOX 231, PLATTE CENTER, NE 68653-0231
PO BOX 232, PLATTE CENTER, NE 68653-0232
PO BOX 233, PLATTE CENTER, NE 68653-0233
PO BOX 234, PLATTE CENTER, NE 68653-0234
PO BOX 235, PLATTE CENTER, NE 68653-0235
PO BOX 236, PLATTE CENTER, NE 68653-0236
PO BOX 237, PLATTE CENTER, NE 68653-0237
PO BOX 238, PLATTE CENTER, NE 68653-0238
PO BOX 239, PLATTE CENTER, NE 68653-0239
PO BOX 240, PLATTE CENTER, NE 68653-0240
PO BOX 241, PLATTE CENTER, NE 68653-0241
PO BOX 242, PLATTE CENTER, NE 68653-0242
PO BOX 243, PLATTE CENTER, NE 68653-0243
PO BOX 244, PLATTE CENTER, NE 68653-0244
PO BOX 245, PLATTE CENTER, NE 68653-0245
PO BOX 246, PLATTE CENTER, NE 68653-0246
PO BOX 247, PLATTE CENTER, NE 68653-0247
PO BOX 248, PLATTE CENTER, NE 68653-0248
PO BOX 249, PLATTE CENTER, NE 68653-0249
PO BOX 250, PLATTE CENTER, NE 68653-0250
PO BOX 251, PLATTE CENTER, NE 68653-0251
PO BOX 252, PLATTE CENTER, NE 68653-0252
PO BOX 253, PLATTE CENTER, NE 68653-0253
PO BOX 254, PLATTE CENTER, NE 68653-0254
PO BOX 255, PLATTE CENTER, NE 68653-0255
PO BOX 256, PLATTE CENTER, NE 68653-0256
PO BOX 257, PLATTE CENTER, NE 68653-0257
PO BOX 258, PLATTE CENTER, NE 68653-0258
PO BOX 259, PLATTE CENTER, NE 68653-0259
PO BOX 260, PLATTE CENTER, NE 68653-0260
PO BOX 261, PLATTE CENTER, NE 68653-0261
PO BOX 262, PLATTE CENTER, NE 68653-0262
PO BOX 263, PLATTE CENTER, NE 68653-0263
PO BOX 264, PLATTE CENTER, NE 68653-0264
PO BOX 265, PLATTE CENTER, NE 68653-0265
PO BOX 266, PLATTE CENTER, NE 68653-0266
PO BOX 267, PLATTE CENTER, NE 68653-0267
PO BOX 268, PLATTE CENTER, NE 68653-0268
PO BOX 269, PLATTE CENTER, NE 68653-0269
PO BOX 270, PLATTE CENTER, NE 68653-0270
PO BOX 271, PLATTE CENTER, NE 68653-0271
PO BOX 272, PLATTE CENTER, NE 68653-0272
PO BOX 273, PLATTE CENTER, NE 68653-0273
PO BOX 274, PLATTE CENTER, NE 68653-0274
PO BOX 275, PLATTE CENTER, NE 68653-0275
PO BOX 276, PLATTE CENTER, NE 68653-0276
PO BOX 277, PLATTE CENTER, NE 68653-0277
PO BOX 278, PLATTE CENTER, NE 68653-0278
PO BOX 279, PLATTE CENTER, NE 68653-0279
PO BOX 280, PLATTE CENTER, NE 68653-0280
PO BOX 281, PLATTE CENTER, NE 68653-0281
PO BOX 282, PLATTE CENTER, NE 68653-0282
PO BOX 283, PLATTE CENTER, NE 68653-0283
PO BOX 284, PLATTE CENTER, NE 68653-0284
PO BOX 285, PLATTE CENTER, NE 68653-0285
PO BOX 286, PLATTE CENTER, NE 68653-0286
PO BOX 287, PLATTE CENTER, NE 68653-0287
PO BOX 288, PLATTE CENTER, NE 68653-0288
PO BOX 289, PLATTE CENTER, NE 68653-0289
PO BOX 290, PLATTE CENTER, NE 68653-0290
PO BOX 291, PLATTE CENTER, NE 68653-0291
PO BOX 292, PLATTE CENTER, NE 68653-0292
PO BOX 293, PLATTE CENTER, NE 68653-0293
PO BOX 294, PLATTE CENTER, NE 68653-0294
PO BOX 295, PLATTE CENTER, NE 68653-0295
PO BOX 296, PLATTE CENTER, NE 68653-0296
PO BOX 297, PLATTE CENTER, NE 68653-0297
PO BOX 298, PLATTE CENTER, NE 68653-0298
PO BOX 299, PLATTE CENTER, NE 68653-0299
PO BOX 300, PLATTE CENTER, NE 68653-0300
PO BOX 301, PLATTE CENTER, NE 68653-0301
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