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 53200, PHOENIX, AZ 85072-3200
PO BOX 53201, PHOENIX, AZ 85072-3201
PO BOX 53202, PHOENIX, AZ 85072-3202
PO BOX 53203, PHOENIX, AZ 85072-3203
PO BOX 53204, PHOENIX, AZ 85072-3204
PO BOX 53205, PHOENIX, AZ 85072-3205
PO BOX 53206, PHOENIX, AZ 85072-3206
PO BOX 53207, PHOENIX, AZ 85072-3207
PO BOX 53208, PHOENIX, AZ 85072-3208
PO BOX 53209, PHOENIX, AZ 85072-3209
PO BOX 53210, PHOENIX, AZ 85072-3210
PO BOX 53211, PHOENIX, AZ 85072-3211
PO BOX 53212, PHOENIX, AZ 85072-3212
PO BOX 53213, PHOENIX, AZ 85072-3213
PO BOX 53214, PHOENIX, AZ 85072-3214
PO BOX 53215, PHOENIX, AZ 85072-3215
PO BOX 53216, PHOENIX, AZ 85072-3216
PO BOX 53217, PHOENIX, AZ 85072-3217
PO BOX 53218, PHOENIX, AZ 85072-3218
PO BOX 53219, PHOENIX, AZ 85072-3219
PO BOX 53220, PHOENIX, AZ 85072-3220
PO BOX 53221, PHOENIX, AZ 85072-3221
PO BOX 53222, PHOENIX, AZ 85072-3222
PO BOX 53223, PHOENIX, AZ 85072-3223
PO BOX 53224, PHOENIX, AZ 85072-3224
PO BOX 53225, PHOENIX, AZ 85072-3225
PO BOX 53226, PHOENIX, AZ 85072-3226
PO BOX 53227, PHOENIX, AZ 85072-3227
PO BOX 53228, PHOENIX, AZ 85072-3228
PO BOX 53229, PHOENIX, AZ 85072-3229
PO BOX 53230, PHOENIX, AZ 85072-3230
PO BOX 53231, PHOENIX, AZ 85072-3231
PO BOX 53232, PHOENIX, AZ 85072-3232
PO BOX 53233, PHOENIX, AZ 85072-3233
PO BOX 53234, PHOENIX, AZ 85072-3234
PO BOX 53235, PHOENIX, AZ 85072-3235
PO BOX 53236, PHOENIX, AZ 85072-3236
PO BOX 53237, PHOENIX, AZ 85072-3237
PO BOX 53238, PHOENIX, AZ 85072-3238
PO BOX 53239, PHOENIX, AZ 85072-3239
PO BOX 53240, PHOENIX, AZ 85072-3240
PO BOX 53241, PHOENIX, AZ 85072-3241
PO BOX 53242, PHOENIX, AZ 85072-3242
PO BOX 53243, PHOENIX, AZ 85072-3243
PO BOX 53244, PHOENIX, AZ 85072-3244
PO BOX 53245, PHOENIX, AZ 85072-3245
PO BOX 53246, PHOENIX, AZ 85072-3246
PO BOX 53247, PHOENIX, AZ 85072-3247
PO BOX 53248, PHOENIX, AZ 85072-3248
PO BOX 53249, PHOENIX, AZ 85072-3249
PO BOX 53250, PHOENIX, AZ 85072-3250
PO BOX 53251, PHOENIX, AZ 85072-3251
PO BOX 53252, PHOENIX, AZ 85072-3252
PO BOX 53253, PHOENIX, AZ 85072-3253
PO BOX 53254, PHOENIX, AZ 85072-3254
PO BOX 53255, PHOENIX, AZ 85072-3255
PO BOX 53256, PHOENIX, AZ 85072-3256
PO BOX 53257, PHOENIX, AZ 85072-3257
PO BOX 53258, PHOENIX, AZ 85072-3258
PO BOX 53259, PHOENIX, AZ 85072-3259
PO BOX 53260, PHOENIX, AZ 85072-3260
PO BOX 53261, PHOENIX, AZ 85072-3261
PO BOX 53262, PHOENIX, AZ 85072-3262
PO BOX 53263, PHOENIX, AZ 85072-3263
PO BOX 53264, PHOENIX, AZ 85072-3264
PO BOX 53265, PHOENIX, AZ 85072-3265
PO BOX 53266, PHOENIX, AZ 85072-3266
PO BOX 53267, PHOENIX, AZ 85072-3267
PO BOX 53268, PHOENIX, AZ 85072-3268
PO BOX 53269, PHOENIX, AZ 85072-3269
PO BOX 53270, PHOENIX, AZ 85072-3270
PO BOX 53271, PHOENIX, AZ 85072-3271
PO BOX 53272, PHOENIX, AZ 85072-3272
PO BOX 53273, PHOENIX, AZ 85072-3273
PO BOX 53274, PHOENIX, AZ 85072-3274
PO BOX 53275, PHOENIX, AZ 85072-3275
PO BOX 53276, PHOENIX, AZ 85072-3276
PO BOX 53277, PHOENIX, AZ 85072-3277
PO BOX 53278, PHOENIX, AZ 85072-3278
PO BOX 53279, PHOENIX, AZ 85072-3279
PO BOX 53280, PHOENIX, AZ 85072-3280
PO BOX 53281, PHOENIX, AZ 85072-3281
PO BOX 53282, PHOENIX, AZ 85072-3282
PO BOX 53283, PHOENIX, AZ 85072-3283
PO BOX 53284, PHOENIX, AZ 85072-3284
PO BOX 53285, PHOENIX, AZ 85072-3285
PO BOX 53286, PHOENIX, AZ 85072-3286
PO BOX 53287, PHOENIX, AZ 85072-3287
PO BOX 53288, PHOENIX, AZ 85072-3288
PO BOX 53289, PHOENIX, AZ 85072-3289
PO BOX 53290, PHOENIX, AZ 85072-3290
PO BOX 53291, PHOENIX, AZ 85072-3291
PO BOX 53292, PHOENIX, AZ 85072-3292
PO BOX 53293, PHOENIX, AZ 85072-3293
PO BOX 53294, PHOENIX, AZ 85072-3294
PO BOX 53295, PHOENIX, AZ 85072-3295
PO BOX 53296, PHOENIX, AZ 85072-3296
PO BOX 53297, PHOENIX, AZ 85072-3297
PO BOX 53298, PHOENIX, AZ 85072-3298
PO BOX 53299, PHOENIX, AZ 85072-3299
PO BOX 53300, PHOENIX, AZ 85072-3300
PO BOX 53301, PHOENIX, AZ 85072-3301
PO BOX 53302, PHOENIX, AZ 85072-3302
PO BOX 53303, PHOENIX, AZ 85072-3303
PO BOX 53304, PHOENIX, AZ 85072-3304
PO BOX 53305, PHOENIX, AZ 85072-3305
PO BOX 53306, PHOENIX, AZ 85072-3306
PO BOX 53307, PHOENIX, AZ 85072-3307
PO BOX 53308, PHOENIX, AZ 85072-3308
PO BOX 53309, PHOENIX, AZ 85072-3309
PO BOX 53310, PHOENIX, AZ 85072-3310
PO BOX 53311, PHOENIX, AZ 85072-3311
PO BOX 53312, PHOENIX, AZ 85072-3312
PO BOX 53313, PHOENIX, AZ 85072-3313
PO BOX 53314, PHOENIX, AZ 85072-3314
PO BOX 53315, PHOENIX, AZ 85072-3315
PO BOX 53316, PHOENIX, AZ 85072-3316
PO BOX 53317, PHOENIX, AZ 85072-3317
PO BOX 53318, PHOENIX, AZ 85072-3318
PO BOX 53319, PHOENIX, AZ 85072-3319
PO BOX 53320, PHOENIX, AZ 85072-3320
PO BOX 53321, PHOENIX, AZ 85072-3321
PO BOX 53322, PHOENIX, AZ 85072-3322
PO BOX 53323, PHOENIX, AZ 85072-3323
PO BOX 53324, PHOENIX, AZ 85072-3324
PO BOX 53325, PHOENIX, AZ 85072-3325
PO BOX 53326, PHOENIX, AZ 85072-3326
PO BOX 53327, PHOENIX, AZ 85072-3327
PO BOX 53328, PHOENIX, AZ 85072-3328
PO BOX 53329, PHOENIX, AZ 85072-3329
PO BOX 53330, PHOENIX, AZ 85072-3330
PO BOX 53331, PHOENIX, AZ 85072-3331
PO BOX 53332, PHOENIX, AZ 85072-3332
PO BOX 53333, PHOENIX, AZ 85072-3333
PO BOX 53334, PHOENIX, AZ 85072-3334
PO BOX 53335, PHOENIX, AZ 85072-3335
PO BOX 53336, PHOENIX, AZ 85072-3336
PO BOX 53337, PHOENIX, AZ 85072-3337
PO BOX 53338, PHOENIX, AZ 85072-3338
PO BOX 53339, PHOENIX, AZ 85072-3339
PO BOX 53340, PHOENIX, AZ 85072-3340
PO BOX 53341, PHOENIX, AZ 85072-3341
PO BOX 53342, PHOENIX, AZ 85072-3342
PO BOX 53343, PHOENIX, AZ 85072-3343
PO BOX 53344, PHOENIX, AZ 85072-3344
PO BOX 53345, PHOENIX, AZ 85072-3345
PO BOX 53346, PHOENIX, AZ 85072-3346
PO BOX 53347, PHOENIX, AZ 85072-3347
PO BOX 53348, PHOENIX, AZ 85072-3348
PO BOX 53349, PHOENIX, AZ 85072-3349
PO BOX 53350, PHOENIX, AZ 85072-3350
PO BOX 53351, PHOENIX, AZ 85072-3351
PO BOX 53352, PHOENIX, AZ 85072-3352
PO BOX 53353, PHOENIX, AZ 85072-3353
PO BOX 53354, PHOENIX, AZ 85072-3354
PO BOX 53355, PHOENIX, AZ 85072-3355
PO BOX 53356, PHOENIX, AZ 85072-3356
PO BOX 53357, PHOENIX, AZ 85072-3357
PO BOX 53358, PHOENIX, AZ 85072-3358
PO BOX 53359, PHOENIX, AZ 85072-3359
PO BOX 53360, PHOENIX, AZ 85072-3360
PO BOX 53361, PHOENIX, AZ 85072-3361
PO BOX 53362, PHOENIX, AZ 85072-3362
PO BOX 53363, PHOENIX, AZ 85072-3363
PO BOX 53364, PHOENIX, AZ 85072-3364
PO BOX 53365, PHOENIX, AZ 85072-3365
PO BOX 53366, PHOENIX, AZ 85072-3366
PO BOX 53367, PHOENIX, AZ 85072-3367
PO BOX 53368, PHOENIX, AZ 85072-3368
PO BOX 53369, PHOENIX, AZ 85072-3369
PO BOX 53370, PHOENIX, AZ 85072-3370
PO BOX 53371, PHOENIX, AZ 85072-3371
PO BOX 53372, PHOENIX, AZ 85072-3372
PO BOX 53373, PHOENIX, AZ 85072-3373
PO BOX 53374, PHOENIX, AZ 85072-3374
PO BOX 53375, PHOENIX, AZ 85072-3375
PO BOX 53376, PHOENIX, AZ 85072-3376
PO BOX 53377, PHOENIX, AZ 85072-3377
PO BOX 53378, PHOENIX, AZ 85072-3378
PO BOX 53379, PHOENIX, AZ 85072-3379
PO BOX 53380, PHOENIX, AZ 85072-3380
PO BOX 53381, PHOENIX, AZ 85072-3381
PO BOX 53382, PHOENIX, AZ 85072-3382
PO BOX 53383, PHOENIX, AZ 85072-3383
PO BOX 53384, PHOENIX, AZ 85072-3384
PO BOX 53385, PHOENIX, AZ 85072-3385
PO BOX 53386, PHOENIX, AZ 85072-3386
PO BOX 53387, PHOENIX, AZ 85072-3387
PO BOX 53388, PHOENIX, AZ 85072-3388
PO BOX 53389, PHOENIX, AZ 85072-3389
PO BOX 53390, PHOENIX, AZ 85072-3390
PO BOX 53391, PHOENIX, AZ 85072-3391
PO BOX 53392, PHOENIX, AZ 85072-3392
PO BOX 53393, PHOENIX, AZ 85072-3393
PO BOX 53394, PHOENIX, AZ 85072-3394
PO BOX 53395, PHOENIX, AZ 85072-3395
PO BOX 53396, PHOENIX, AZ 85072-3396
PO BOX 53397, PHOENIX, AZ 85072-3397
PO BOX 53398, PHOENIX, AZ 85072-3398
PO BOX 53399, PHOENIX, AZ 85072-3399
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