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 9121, NAMPA, ID 83652-9121
PO BOX 9122, NAMPA, ID 83652-9122
PO BOX 9123, NAMPA, ID 83652-9123
PO BOX 9124, NAMPA, ID 83652-9124
PO BOX 9125, NAMPA, ID 83652-9125
PO BOX 9126, NAMPA, ID 83652-9126
PO BOX 9127, NAMPA, ID 83652-9127
PO BOX 9128, NAMPA, ID 83652-9128
PO BOX 9129, NAMPA, ID 83652-9129
PO BOX 9130, NAMPA, ID 83652-9130
PO BOX 9131, NAMPA, ID 83652-9131
PO BOX 9132, NAMPA, ID 83652-9132
PO BOX 9133, NAMPA, ID 83652-9133
PO BOX 9134, NAMPA, ID 83652-9134
PO BOX 9135, NAMPA, ID 83652-9135
PO BOX 9136, NAMPA, ID 83652-9136
PO BOX 9137, NAMPA, ID 83652-9137
PO BOX 9138, NAMPA, ID 83652-9138
PO BOX 9139, NAMPA, ID 83652-9139
PO BOX 9140, NAMPA, ID 83652-9140
PO BOX 9141, NAMPA, ID 83652-9141
PO BOX 9142, NAMPA, ID 83652-9142
PO BOX 9143, NAMPA, ID 83652-9143
PO BOX 9144, NAMPA, ID 83652-9144
PO BOX 9145, NAMPA, ID 83652-9145
PO BOX 9146, NAMPA, ID 83652-9146
PO BOX 9147, NAMPA, ID 83652-9147
PO BOX 9148, NAMPA, ID 83652-9148
PO BOX 9149, NAMPA, ID 83652-9149
PO BOX 9150, NAMPA, ID 83652-9150
PO BOX 9151, NAMPA, ID 83652-9151
PO BOX 9152, NAMPA, ID 83652-9152
PO BOX 9153, NAMPA, ID 83652-9153
PO BOX 9154, NAMPA, ID 83652-9154
PO BOX 9155, NAMPA, ID 83652-9155
PO BOX 9156, NAMPA, ID 83652-9156
PO BOX 9157, NAMPA, ID 83652-9157
PO BOX 9158, NAMPA, ID 83652-9158
PO BOX 9159, NAMPA, ID 83652-9159
PO BOX 9160, NAMPA, ID 83652-9160
PO BOX 9161, NAMPA, ID 83652-9161
PO BOX 9162, NAMPA, ID 83652-9162
PO BOX 9163, NAMPA, ID 83652-9163
PO BOX 9164, NAMPA, ID 83652-9164
PO BOX 9165, NAMPA, ID 83652-9165
PO BOX 9166, NAMPA, ID 83652-9166
PO BOX 9167, NAMPA, ID 83652-9167
PO BOX 9168, NAMPA, ID 83652-9168
PO BOX 9169, NAMPA, ID 83652-9169
PO BOX 9170, NAMPA, ID 83652-9170
PO BOX 9171, NAMPA, ID 83652-9171
PO BOX 9172, NAMPA, ID 83652-9172
PO BOX 9173, NAMPA, ID 83652-9173
PO BOX 9174, NAMPA, ID 83652-9174
PO BOX 9175, NAMPA, ID 83652-9175
PO BOX 9176, NAMPA, ID 83652-9176
PO BOX 9177, NAMPA, ID 83652-9177
PO BOX 9178, NAMPA, ID 83652-9178
PO BOX 9179, NAMPA, ID 83652-9179
PO BOX 9180, NAMPA, ID 83652-9180
PO BOX 9181, NAMPA, ID 83652-9181
PO BOX 9182, NAMPA, ID 83652-9182
PO BOX 9183, NAMPA, ID 83652-9183
PO BOX 9184, NAMPA, ID 83652-9184
PO BOX 9185, NAMPA, ID 83652-9185
PO BOX 9186, NAMPA, ID 83652-9186
PO BOX 9187, NAMPA, ID 83652-9187
PO BOX 9188, NAMPA, ID 83652-9188
PO BOX 9189, NAMPA, ID 83652-9189
PO BOX 9190, NAMPA, ID 83652-9190
PO BOX 9191, NAMPA, ID 83652-9191
PO BOX 9192, NAMPA, ID 83652-9192
PO BOX 9193, NAMPA, ID 83652-9193
PO BOX 9194, NAMPA, ID 83652-9194
PO BOX 9195, NAMPA, ID 83652-9195
PO BOX 9196, NAMPA, ID 83652-9196
PO BOX 9197, NAMPA, ID 83652-9197
PO BOX 9198, NAMPA, ID 83652-9198
PO BOX 9199, NAMPA, ID 83652-9199
PO BOX 9200, NAMPA, ID 83652-9200
PO BOX 9201, NAMPA, ID 83652-9201
PO BOX 9202, NAMPA, ID 83652-9202
PO BOX 9203, NAMPA, ID 83652-9203
PO BOX 9204, NAMPA, ID 83652-9204
PO BOX 9205, NAMPA, ID 83652-9205
PO BOX 9206, NAMPA, ID 83652-9206
PO BOX 9207, NAMPA, ID 83652-9207
PO BOX 9208, NAMPA, ID 83652-9208
PO BOX 9209, NAMPA, ID 83652-9209
PO BOX 9210, NAMPA, ID 83652-9210
PO BOX 9211, NAMPA, ID 83652-9211
PO BOX 9212, NAMPA, ID 83652-9212
PO BOX 9213, NAMPA, ID 83652-9213
PO BOX 9214, NAMPA, ID 83652-9214
PO BOX 9215, NAMPA, ID 83652-9215
PO BOX 9216, NAMPA, ID 83652-9216
PO BOX 9217, NAMPA, ID 83652-9217
PO BOX 9218, NAMPA, ID 83652-9218
PO BOX 9219, NAMPA, ID 83652-9219
PO BOX 9220, NAMPA, ID 83652-9220
PO BOX 9221, NAMPA, ID 83652-9221
PO BOX 9222, NAMPA, ID 83652-9222
PO BOX 9223, NAMPA, ID 83652-9223
PO BOX 9224, NAMPA, ID 83652-9224
PO BOX 9225, NAMPA, ID 83652-9225
PO BOX 9226, NAMPA, ID 83652-9226
PO BOX 9227, NAMPA, ID 83652-9227
PO BOX 9228, NAMPA, ID 83652-9228
PO BOX 9229, NAMPA, ID 83652-9229
PO BOX 9230, NAMPA, ID 83652-9230
PO BOX 9231, NAMPA, ID 83652-9231
PO BOX 9232, NAMPA, ID 83652-9232
PO BOX 9233, NAMPA, ID 83652-9233
PO BOX 9234, NAMPA, ID 83652-9234
PO BOX 9235, NAMPA, ID 83652-9235
PO BOX 9236, NAMPA, ID 83652-9236
PO BOX 9237, NAMPA, ID 83652-9237
PO BOX 9238, NAMPA, ID 83652-9238
PO BOX 9239, NAMPA, ID 83652-9239
PO BOX 9240, NAMPA, ID 83652-9240
PO BOX 9241, NAMPA, ID 83652-9241
PO BOX 9242, NAMPA, ID 83652-9242
PO BOX 9243, NAMPA, ID 83652-9243
PO BOX 9244, NAMPA, ID 83652-9244
PO BOX 9245, NAMPA, ID 83652-9245
PO BOX 9246, NAMPA, ID 83652-9246
PO BOX 9247, NAMPA, ID 83652-9247
PO BOX 9248, NAMPA, ID 83652-9248
PO BOX 9249, NAMPA, ID 83652-9249
PO BOX 9250, NAMPA, ID 83652-9250
PO BOX 9251, NAMPA, ID 83652-9251
PO BOX 9252, NAMPA, ID 83652-9252
PO BOX 9253, NAMPA, ID 83652-9253
PO BOX 9254, NAMPA, ID 83652-9254
PO BOX 9255, NAMPA, ID 83652-9255
PO BOX 9256, NAMPA, ID 83652-9256
PO BOX 9257, NAMPA, ID 83652-9257
PO BOX 9258, NAMPA, ID 83652-9258
PO BOX 9259, NAMPA, ID 83652-9259
PO BOX 9260, NAMPA, ID 83652-9260
PO BOX 9261, NAMPA, ID 83652-9261
PO BOX 9262, NAMPA, ID 83652-9262
PO BOX 9263, NAMPA, ID 83652-9263
PO BOX 9264, NAMPA, ID 83652-9264
PO BOX 9265, NAMPA, ID 83652-9265
PO BOX 9266, NAMPA, ID 83652-9266
PO BOX 9267, NAMPA, ID 83652-9267
PO BOX 9268, NAMPA, ID 83652-9268
PO BOX 9269, NAMPA, ID 83652-9269
PO BOX 9270, NAMPA, ID 83652-9270
PO BOX 9271, NAMPA, ID 83652-9271
PO BOX 9272, NAMPA, ID 83652-9272
PO BOX 9273, NAMPA, ID 83652-9273
PO BOX 9274, NAMPA, ID 83652-9274
PO BOX 9275, NAMPA, ID 83652-9275
PO BOX 9276, NAMPA, ID 83652-9276
PO BOX 9277, NAMPA, ID 83652-9277
PO BOX 9278, NAMPA, ID 83652-9278
PO BOX 9279, NAMPA, ID 83652-9279
PO BOX 9280, NAMPA, ID 83652-9280
PO BOX 9281, NAMPA, ID 83652-9281
PO BOX 9282, NAMPA, ID 83652-9282
PO BOX 9283, NAMPA, ID 83652-9283
PO BOX 9284, NAMPA, ID 83652-9284
PO BOX 9285, NAMPA, ID 83652-9285
PO BOX 9286, NAMPA, ID 83652-9286
PO BOX 9287, NAMPA, ID 83652-9287
PO BOX 9288, NAMPA, ID 83652-9288
PO BOX 9289, NAMPA, ID 83652-9289
PO BOX 9290, NAMPA, ID 83652-9290
PO BOX 9291, NAMPA, ID 83652-9291
PO BOX 9292, NAMPA, ID 83652-9292
PO BOX 9293, NAMPA, ID 83652-9293
PO BOX 9294, NAMPA, ID 83652-9294
PO BOX 9295, NAMPA, ID 83652-9295
PO BOX 9296, NAMPA, ID 83652-9296
PO BOX 9297, NAMPA, ID 83652-9297
PO BOX 9298, NAMPA, ID 83652-9298
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