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 30314, CORPUS CHRISTI, TX 78463-0314
PO BOX 30315, CORPUS CHRISTI, TX 78463-0315
PO BOX 30316, CORPUS CHRISTI, TX 78463-0316
PO BOX 30317, CORPUS CHRISTI, TX 78463-0317
PO BOX 30318, CORPUS CHRISTI, TX 78463-0318
PO BOX 30319, CORPUS CHRISTI, TX 78463-0319
PO BOX 30320, CORPUS CHRISTI, TX 78463-0320
PO BOX 30321, CORPUS CHRISTI, TX 78463-0321
PO BOX 30322, CORPUS CHRISTI, TX 78463-0322
PO BOX 30323, CORPUS CHRISTI, TX 78463-0323
PO BOX 30324, CORPUS CHRISTI, TX 78463-0324
PO BOX 30325, CORPUS CHRISTI, TX 78463-0325
PO BOX 30326, CORPUS CHRISTI, TX 78463-0326
PO BOX 30327, CORPUS CHRISTI, TX 78463-0327
PO BOX 30328, CORPUS CHRISTI, TX 78463-0328
PO BOX 30329, CORPUS CHRISTI, TX 78463-0329
PO BOX 30330, CORPUS CHRISTI, TX 78463-0330
PO BOX 30331, CORPUS CHRISTI, TX 78463-0331
PO BOX 30332, CORPUS CHRISTI, TX 78463-0332
PO BOX 30333, CORPUS CHRISTI, TX 78463-0333
PO BOX 30334, CORPUS CHRISTI, TX 78463-0334
PO BOX 30335, CORPUS CHRISTI, TX 78463-0335
PO BOX 30336, CORPUS CHRISTI, TX 78463-0336
PO BOX 30337, CORPUS CHRISTI, TX 78463-0337
PO BOX 30338, CORPUS CHRISTI, TX 78463-0338
PO BOX 30339, CORPUS CHRISTI, TX 78463-0339
PO BOX 30340, CORPUS CHRISTI, TX 78463-0340
PO BOX 30341, CORPUS CHRISTI, TX 78463-0341
PO BOX 30342, CORPUS CHRISTI, TX 78463-0342
PO BOX 30343, CORPUS CHRISTI, TX 78463-0343
PO BOX 30344, CORPUS CHRISTI, TX 78463-0344
PO BOX 30345, CORPUS CHRISTI, TX 78463-0345
PO BOX 30346, CORPUS CHRISTI, TX 78463-0346
PO BOX 30347, CORPUS CHRISTI, TX 78463-0347
PO BOX 30348, CORPUS CHRISTI, TX 78463-0348
PO BOX 30349, CORPUS CHRISTI, TX 78463-0349
PO BOX 30350, CORPUS CHRISTI, TX 78463-0350
PO BOX 30351, CORPUS CHRISTI, TX 78463-0351
PO BOX 30352, CORPUS CHRISTI, TX 78463-0352
PO BOX 30353, CORPUS CHRISTI, TX 78463-0353
PO BOX 30354, CORPUS CHRISTI, TX 78463-0354
PO BOX 30355, CORPUS CHRISTI, TX 78463-0355
PO BOX 30356, CORPUS CHRISTI, TX 78463-0356
PO BOX 30357, CORPUS CHRISTI, TX 78463-0357
PO BOX 30358, CORPUS CHRISTI, TX 78463-0358
PO BOX 30359, CORPUS CHRISTI, TX 78463-0359
PO BOX 30360, CORPUS CHRISTI, TX 78463-0360
PO BOX 30361, CORPUS CHRISTI, TX 78463-0361
PO BOX 30362, CORPUS CHRISTI, TX 78463-0362
PO BOX 30363, CORPUS CHRISTI, TX 78463-0363
PO BOX 30364, CORPUS CHRISTI, TX 78463-0364
PO BOX 30365, CORPUS CHRISTI, TX 78463-0365
PO BOX 30366, CORPUS CHRISTI, TX 78463-0366
PO BOX 30367, CORPUS CHRISTI, TX 78463-0367
PO BOX 30368, CORPUS CHRISTI, TX 78463-0368
PO BOX 30369, CORPUS CHRISTI, TX 78463-0369
PO BOX 30370, CORPUS CHRISTI, TX 78463-0370
PO BOX 30371, CORPUS CHRISTI, TX 78463-0371
PO BOX 30372, CORPUS CHRISTI, TX 78463-0372
PO BOX 30373, CORPUS CHRISTI, TX 78463-0373
PO BOX 30374, CORPUS CHRISTI, TX 78463-0374
PO BOX 30375, CORPUS CHRISTI, TX 78463-0375
PO BOX 30376, CORPUS CHRISTI, TX 78463-0376
PO BOX 30377, CORPUS CHRISTI, TX 78463-0377
PO BOX 30378, CORPUS CHRISTI, TX 78463-0378
PO BOX 30379, CORPUS CHRISTI, TX 78463-0379
PO BOX 30380, CORPUS CHRISTI, TX 78463-0380
PO BOX 30381, CORPUS CHRISTI, TX 78463-0381
PO BOX 30382, CORPUS CHRISTI, TX 78463-0382
PO BOX 30383, CORPUS CHRISTI, TX 78463-0383
PO BOX 30384, CORPUS CHRISTI, TX 78463-0384
PO BOX 30385, CORPUS CHRISTI, TX 78463-0385
PO BOX 30386, CORPUS CHRISTI, TX 78463-0386
PO BOX 30387, CORPUS CHRISTI, TX 78463-0387
PO BOX 30388, CORPUS CHRISTI, TX 78463-0388
PO BOX 30389, CORPUS CHRISTI, TX 78463-0389
PO BOX 30390, CORPUS CHRISTI, TX 78463-0390
PO BOX 30391, CORPUS CHRISTI, TX 78463-0391
PO BOX 30392, CORPUS CHRISTI, TX 78463-0392
PO BOX 30393, CORPUS CHRISTI, TX 78463-0393
PO BOX 30394, CORPUS CHRISTI, TX 78463-0394
PO BOX 30395, CORPUS CHRISTI, TX 78463-0395
PO BOX 30396, CORPUS CHRISTI, TX 78463-0396
PO BOX 30397, CORPUS CHRISTI, TX 78463-0397
PO BOX 30398, CORPUS CHRISTI, TX 78463-0398
PO BOX 30399, CORPUS CHRISTI, TX 78463-0399
PO BOX 30400, CORPUS CHRISTI, TX 78463-0400
PO BOX 30401, CORPUS CHRISTI, TX 78463-0401
PO BOX 30402, CORPUS CHRISTI, TX 78463-0402
PO BOX 30403, CORPUS CHRISTI, TX 78463-0403
PO BOX 30404, CORPUS CHRISTI, TX 78463-0404
PO BOX 30405, CORPUS CHRISTI, TX 78463-0405
PO BOX 30406, CORPUS CHRISTI, TX 78463-0406
PO BOX 30407, CORPUS CHRISTI, TX 78463-0407
PO BOX 30408, CORPUS CHRISTI, TX 78463-0408
PO BOX 30409, CORPUS CHRISTI, TX 78463-0409
PO BOX 30410, CORPUS CHRISTI, TX 78463-0410
PO BOX 30411, CORPUS CHRISTI, TX 78463-0411
PO BOX 30412, CORPUS CHRISTI, TX 78463-0412
PO BOX 30413, CORPUS CHRISTI, TX 78463-0413
PO BOX 30414, CORPUS CHRISTI, TX 78463-0414
PO BOX 30415, CORPUS CHRISTI, TX 78463-0415
PO BOX 30416, CORPUS CHRISTI, TX 78463-0416
PO BOX 30417, CORPUS CHRISTI, TX 78463-0417
PO BOX 30418, CORPUS CHRISTI, TX 78463-0418
PO BOX 30419, CORPUS CHRISTI, TX 78463-0419
PO BOX 30420, CORPUS CHRISTI, TX 78463-0420
PO BOX 30421, CORPUS CHRISTI, TX 78463-0421
PO BOX 30422, CORPUS CHRISTI, TX 78463-0422
PO BOX 30423, CORPUS CHRISTI, TX 78463-0423
PO BOX 30424, CORPUS CHRISTI, TX 78463-0424
PO BOX 30425, CORPUS CHRISTI, TX 78463-0425
PO BOX 30426, CORPUS CHRISTI, TX 78463-0426
PO BOX 30427, CORPUS CHRISTI, TX 78463-0427
PO BOX 30428, CORPUS CHRISTI, TX 78463-0428
PO BOX 30429, CORPUS CHRISTI, TX 78463-0429
PO BOX 30430, CORPUS CHRISTI, TX 78463-0430
PO BOX 30431, CORPUS CHRISTI, TX 78463-0431
PO BOX 30432, CORPUS CHRISTI, TX 78463-0432
PO BOX 30433, CORPUS CHRISTI, TX 78463-0433
PO BOX 30434, CORPUS CHRISTI, TX 78463-0434
PO BOX 30435, CORPUS CHRISTI, TX 78463-0435
PO BOX 30436, CORPUS CHRISTI, TX 78463-0436
PO BOX 30437, CORPUS CHRISTI, TX 78463-0437
PO BOX 30438, CORPUS CHRISTI, TX 78463-0438
PO BOX 30439, CORPUS CHRISTI, TX 78463-0439
PO BOX 30440, CORPUS CHRISTI, TX 78463-0440
PO BOX 30441, CORPUS CHRISTI, TX 78463-0441
PO BOX 30442, CORPUS CHRISTI, TX 78463-0442
PO BOX 30443, CORPUS CHRISTI, TX 78463-0443
PO BOX 30444, CORPUS CHRISTI, TX 78463-0444
PO BOX 30445, CORPUS CHRISTI, TX 78463-0445
PO BOX 30446, CORPUS CHRISTI, TX 78463-0446
PO BOX 30447, CORPUS CHRISTI, TX 78463-0447
PO BOX 30448, CORPUS CHRISTI, TX 78463-0448
PO BOX 30449, CORPUS CHRISTI, TX 78463-0449
PO BOX 30450, CORPUS CHRISTI, TX 78463-0450
PO BOX 30451, CORPUS CHRISTI, TX 78463-0451
PO BOX 30452, CORPUS CHRISTI, TX 78463-0452
PO BOX 30453, CORPUS CHRISTI, TX 78463-0453
PO BOX 30454, CORPUS CHRISTI, TX 78463-0454
PO BOX 30455, CORPUS CHRISTI, TX 78463-0455
PO BOX 30456, CORPUS CHRISTI, TX 78463-0456
PO BOX 30457, CORPUS CHRISTI, TX 78463-0457
PO BOX 30458, CORPUS CHRISTI, TX 78463-0458
PO BOX 30459, CORPUS CHRISTI, TX 78463-0459
PO BOX 30460, CORPUS CHRISTI, TX 78463-0460
PO BOX 30461, CORPUS CHRISTI, TX 78463-0461
PO BOX 30462, CORPUS CHRISTI, TX 78463-0462
PO BOX 30463, CORPUS CHRISTI, TX 78463-0463
PO BOX 30464, CORPUS CHRISTI, TX 78463-0464
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