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 29200, PHOENIX, AZ 85038-9200
PO BOX 29201, PHOENIX, AZ 85038-9201
PO BOX 29202, PHOENIX, AZ 85038-9202
PO BOX 29203, PHOENIX, AZ 85038-9203
PO BOX 29204, PHOENIX, AZ 85038-9204
PO BOX 29205, PHOENIX, AZ 85038-9205
PO BOX 29206, PHOENIX, AZ 85038-9206
PO BOX 29207, PHOENIX, AZ 85038-9207
PO BOX 29208, PHOENIX, AZ 85038-9208
PO BOX 29209, PHOENIX, AZ 85038-9209
PO BOX 29210, PHOENIX, AZ 85038-9210
PO BOX 29211, PHOENIX, AZ 85038-9211
PO BOX 29212, PHOENIX, AZ 85038-9212
PO BOX 29213, PHOENIX, AZ 85038-9213
PO BOX 29214, PHOENIX, AZ 85038-9214
PO BOX 29215, PHOENIX, AZ 85038-9215
PO BOX 29216, PHOENIX, AZ 85038-9216
PO BOX 29217, PHOENIX, AZ 85038-9217
PO BOX 29218, PHOENIX, AZ 85038-9218
PO BOX 29219, PHOENIX, AZ 85038-9219
PO BOX 29220, PHOENIX, AZ 85038-9220
PO BOX 29221, PHOENIX, AZ 85038-9221
PO BOX 29222, PHOENIX, AZ 85038-9222
PO BOX 29223, PHOENIX, AZ 85038-9223
PO BOX 29224, PHOENIX, AZ 85038-9224
PO BOX 29225, PHOENIX, AZ 85038-9225
PO BOX 29226, PHOENIX, AZ 85038-9226
PO BOX 29227, PHOENIX, AZ 85038-9227
PO BOX 29228, PHOENIX, AZ 85038-9228
PO BOX 29229, PHOENIX, AZ 85038-9229
PO BOX 29230, PHOENIX, AZ 85038-9230
PO BOX 29231, PHOENIX, AZ 85038-9231
PO BOX 29232, PHOENIX, AZ 85038-9232
PO BOX 29233, PHOENIX, AZ 85038-9233
PO BOX 29234, PHOENIX, AZ 85038-9234
PO BOX 29235, PHOENIX, AZ 85038-9235
PO BOX 29236, PHOENIX, AZ 85038-9236
PO BOX 29237, PHOENIX, AZ 85038-9237
PO BOX 29238, PHOENIX, AZ 85038-9238
PO BOX 29239, PHOENIX, AZ 85038-9239
PO BOX 29240, PHOENIX, AZ 85038-9240
PO BOX 29241, PHOENIX, AZ 85038-9241
PO BOX 29242, PHOENIX, AZ 85038-9242
PO BOX 29243, PHOENIX, AZ 85038-9243
PO BOX 29244, PHOENIX, AZ 85038-9244
PO BOX 29245, PHOENIX, AZ 85038-9245
PO BOX 29246, PHOENIX, AZ 85038-9246
PO BOX 29247, PHOENIX, AZ 85038-9247
PO BOX 29248, PHOENIX, AZ 85038-9248
PO BOX 29249, PHOENIX, AZ 85038-9249
PO BOX 29250, PHOENIX, AZ 85038-9250
PO BOX 29251, PHOENIX, AZ 85038-9251
PO BOX 29252, PHOENIX, AZ 85038-9252
PO BOX 29253, PHOENIX, AZ 85038-9253
PO BOX 29254, PHOENIX, AZ 85038-9254
PO BOX 29255, PHOENIX, AZ 85038-9255
PO BOX 29256, PHOENIX, AZ 85038-9256
PO BOX 29257, PHOENIX, AZ 85038-9257
PO BOX 29258, PHOENIX, AZ 85038-9258
PO BOX 29259, PHOENIX, AZ 85038-9259
PO BOX 29260, PHOENIX, AZ 85038-9260
PO BOX 29261, PHOENIX, AZ 85038-9261
PO BOX 29262, PHOENIX, AZ 85038-9262
PO BOX 29263, PHOENIX, AZ 85038-9263
PO BOX 29264, PHOENIX, AZ 85038-9264
PO BOX 29265, PHOENIX, AZ 85038-9265
PO BOX 29266, PHOENIX, AZ 85038-9266
PO BOX 29267, PHOENIX, AZ 85038-9267
PO BOX 29268, PHOENIX, AZ 85038-9268
PO BOX 29269, PHOENIX, AZ 85038-9269
PO BOX 29270, PHOENIX, AZ 85038-9270
PO BOX 29271, PHOENIX, AZ 85038-9271
PO BOX 29272, PHOENIX, AZ 85038-9272
PO BOX 29273, PHOENIX, AZ 85038-9273
PO BOX 29274, PHOENIX, AZ 85038-9274
PO BOX 29275, PHOENIX, AZ 85038-9275
PO BOX 29276, PHOENIX, AZ 85038-9276
PO BOX 29277, PHOENIX, AZ 85038-9277
PO BOX 29278, PHOENIX, AZ 85038-9278
PO BOX 29279, PHOENIX, AZ 85038-9279
PO BOX 29280, PHOENIX, AZ 85038-9280
PO BOX 29281, PHOENIX, AZ 85038-9281
PO BOX 29282, PHOENIX, AZ 85038-9282
PO BOX 29283, PHOENIX, AZ 85038-9283
PO BOX 29284, PHOENIX, AZ 85038-9284
PO BOX 29285, PHOENIX, AZ 85038-9285
PO BOX 29286, PHOENIX, AZ 85038-9286
PO BOX 29287, PHOENIX, AZ 85038-9287
PO BOX 29288, PHOENIX, AZ 85038-9288
PO BOX 29289, PHOENIX, AZ 85038-9289
PO BOX 29290, PHOENIX, AZ 85038-9290
PO BOX 29291, PHOENIX, AZ 85038-9291
PO BOX 29292, PHOENIX, AZ 85038-9292
PO BOX 29293, PHOENIX, AZ 85038-9293
PO BOX 29294, PHOENIX, AZ 85038-9294
PO BOX 29295, PHOENIX, AZ 85038-9295
PO BOX 29296, PHOENIX, AZ 85038-9296
PO BOX 29297, PHOENIX, AZ 85038-9297
PO BOX 29298, PHOENIX, AZ 85038-9298
PO BOX 29299, PHOENIX, AZ 85038-9299
PO BOX 29300, PHOENIX, AZ 85038-9300
PO BOX 29301, PHOENIX, AZ 85038-9301
PO BOX 29302, PHOENIX, AZ 85038-9302
PO BOX 29303, PHOENIX, AZ 85038-9303
PO BOX 29304, PHOENIX, AZ 85038-9304
PO BOX 29305, PHOENIX, AZ 85038-9305
PO BOX 29306, PHOENIX, AZ 85038-9306
PO BOX 29307, PHOENIX, AZ 85038-9307
PO BOX 29308, PHOENIX, AZ 85038-9308
PO BOX 29309, PHOENIX, AZ 85038-9309
PO BOX 29310, PHOENIX, AZ 85038-9310
PO BOX 29311, PHOENIX, AZ 85038-9311
PO BOX 29312, PHOENIX, AZ 85038-9312
PO BOX 29313, PHOENIX, AZ 85038-9313
PO BOX 29314, PHOENIX, AZ 85038-9314
PO BOX 29315, PHOENIX, AZ 85038-9315
PO BOX 29316, PHOENIX, AZ 85038-9316
PO BOX 29317, PHOENIX, AZ 85038-9317
PO BOX 29318, PHOENIX, AZ 85038-9318
PO BOX 29319, PHOENIX, AZ 85038-9319
PO BOX 29320, PHOENIX, AZ 85038-9320
PO BOX 29321, PHOENIX, AZ 85038-9321
PO BOX 29322, PHOENIX, AZ 85038-9322
PO BOX 29323, PHOENIX, AZ 85038-9323
PO BOX 29324, PHOENIX, AZ 85038-9324
PO BOX 29325, PHOENIX, AZ 85038-9325
PO BOX 29326, PHOENIX, AZ 85038-9326
PO BOX 29327, PHOENIX, AZ 85038-9327
PO BOX 29328, PHOENIX, AZ 85038-9328
PO BOX 29329, PHOENIX, AZ 85038-9329
PO BOX 29330, PHOENIX, AZ 85038-9330
PO BOX 29331, PHOENIX, AZ 85038-9331
PO BOX 29332, PHOENIX, AZ 85038-9332
PO BOX 29333, PHOENIX, AZ 85038-9333
PO BOX 29334, PHOENIX, AZ 85038-9334
PO BOX 29335, PHOENIX, AZ 85038-9335
PO BOX 29336, PHOENIX, AZ 85038-9336
PO BOX 29337, PHOENIX, AZ 85038-9337
PO BOX 29338, PHOENIX, AZ 85038-9338
PO BOX 29339, PHOENIX, AZ 85038-9339
PO BOX 29340, PHOENIX, AZ 85038-9340
PO BOX 29341, PHOENIX, AZ 85038-9341
PO BOX 29342, PHOENIX, AZ 85038-9342
PO BOX 29343, PHOENIX, AZ 85038-9343
PO BOX 29344, PHOENIX, AZ 85038-9344
PO BOX 29345, PHOENIX, AZ 85038-9345
PO BOX 29346, PHOENIX, AZ 85038-9346
PO BOX 29347, PHOENIX, AZ 85038-9347
PO BOX 29348, PHOENIX, AZ 85038-9348
PO BOX 29349, PHOENIX, AZ 85038-9349
PO BOX 29350, PHOENIX, AZ 85038-9350
PO BOX 29351, PHOENIX, AZ 85038-9351
PO BOX 29352, PHOENIX, AZ 85038-9352
PO BOX 29353, PHOENIX, AZ 85038-9353
PO BOX 29354, PHOENIX, AZ 85038-9354
PO BOX 29355, PHOENIX, AZ 85038-9355
PO BOX 29356, PHOENIX, AZ 85038-9356
PO BOX 29357, PHOENIX, AZ 85038-9357
PO BOX 29358, PHOENIX, AZ 85038-9358
PO BOX 29359, PHOENIX, AZ 85038-9359
PO BOX 29360, PHOENIX, AZ 85038-9360
PO BOX 29361, PHOENIX, AZ 85038-9361
PO BOX 29362, PHOENIX, AZ 85038-9362
PO BOX 29363, PHOENIX, AZ 85038-9363
PO BOX 29364, PHOENIX, AZ 85038-9364
PO BOX 29365, PHOENIX, AZ 85038-9365
PO BOX 29366, PHOENIX, AZ 85038-9366
PO BOX 29367, PHOENIX, AZ 85038-9367
PO BOX 29368, PHOENIX, AZ 85038-9368
PO BOX 29369, PHOENIX, AZ 85038-9369
PO BOX 29370, PHOENIX, AZ 85038-9370
PO BOX 29371, PHOENIX, AZ 85038-9371
PO BOX 29372, PHOENIX, AZ 85038-9372
PO BOX 29373, PHOENIX, AZ 85038-9373
PO BOX 29374, PHOENIX, AZ 85038-9374
PO BOX 29375, PHOENIX, AZ 85038-9375
PO BOX 29376, PHOENIX, AZ 85038-9376
PO BOX 29377, PHOENIX, AZ 85038-9377
PO BOX 29378, PHOENIX, AZ 85038-9378
PO BOX 29379, PHOENIX, AZ 85038-9379
PO BOX 29380, PHOENIX, AZ 85038-9380
PO BOX 29381, PHOENIX, AZ 85038-9381
PO BOX 29382, PHOENIX, AZ 85038-9382
PO BOX 29383, PHOENIX, AZ 85038-9383
PO BOX 29384, PHOENIX, AZ 85038-9384
PO BOX 29385, PHOENIX, AZ 85038-9385
PO BOX 29386, PHOENIX, AZ 85038-9386
PO BOX 29387, PHOENIX, AZ 85038-9387
PO BOX 29388, PHOENIX, AZ 85038-9388
PO BOX 29389, PHOENIX, AZ 85038-9389
PO BOX 29390, PHOENIX, AZ 85038-9390
PO BOX 29391, PHOENIX, AZ 85038-9391
PO BOX 29392, PHOENIX, AZ 85038-9392
PO BOX 29393, PHOENIX, AZ 85038-9393
PO BOX 29394, PHOENIX, AZ 85038-9394
PO BOX 29395, PHOENIX, AZ 85038-9395
PO BOX 29396, PHOENIX, AZ 85038-9396
PO BOX 29397, PHOENIX, AZ 85038-9397
PO BOX 29398, PHOENIX, AZ 85038-9398
PO BOX 29399, PHOENIX, AZ 85038-9399
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