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 9481, COLLEGE STATION, TX 77842-9481
PO BOX 9482, COLLEGE STATION, TX 77842-9482
PO BOX 9483, COLLEGE STATION, TX 77842-9483
PO BOX 9484, COLLEGE STATION, TX 77842-9484
PO BOX 9485, COLLEGE STATION, TX 77842-9485
PO BOX 9486, COLLEGE STATION, TX 77842-9486
PO BOX 9487, COLLEGE STATION, TX 77842-9487
PO BOX 9488, COLLEGE STATION, TX 77842-9488
PO BOX 9489, COLLEGE STATION, TX 77842-9489
PO BOX 9490, COLLEGE STATION, TX 77842-9490
PO BOX 9491, COLLEGE STATION, TX 77842-9491
PO BOX 9492, COLLEGE STATION, TX 77842-9492
PO BOX 9493, COLLEGE STATION, TX 77842-9493
PO BOX 9494, COLLEGE STATION, TX 77842-9494
PO BOX 9495, COLLEGE STATION, TX 77842-9495
PO BOX 9496, COLLEGE STATION, TX 77842-9496
PO BOX 9497, COLLEGE STATION, TX 77842-9497
PO BOX 9498, COLLEGE STATION, TX 77842-9498
PO BOX 9499, COLLEGE STATION, TX 77842-9499
PO BOX 9500, COLLEGE STATION, TX 77842-9500
PO BOX 9501, COLLEGE STATION, TX 77842-9501
PO BOX 9502, COLLEGE STATION, TX 77842-9502
PO BOX 9503, COLLEGE STATION, TX 77842-9503
PO BOX 9504, COLLEGE STATION, TX 77842-9504
PO BOX 9505, COLLEGE STATION, TX 77842-9505
PO BOX 9506, COLLEGE STATION, TX 77842-9506
PO BOX 9507, COLLEGE STATION, TX 77842-9507
PO BOX 9508, COLLEGE STATION, TX 77842-9508
PO BOX 9509, COLLEGE STATION, TX 77842-9509
PO BOX 9510, COLLEGE STATION, TX 77842-9510
PO BOX 9511, COLLEGE STATION, TX 77842-9511
PO BOX 9512, COLLEGE STATION, TX 77842-9512
PO BOX 9513, COLLEGE STATION, TX 77842-9513
PO BOX 9514, COLLEGE STATION, TX 77842-9514
PO BOX 9515, COLLEGE STATION, TX 77842-9515
PO BOX 9516, COLLEGE STATION, TX 77842-9516
PO BOX 9517, COLLEGE STATION, TX 77842-9517
PO BOX 9518, COLLEGE STATION, TX 77842-9518
PO BOX 9519, COLLEGE STATION, TX 77842-9519
PO BOX 9520, COLLEGE STATION, TX 77842-9520
PO BOX 9521, COLLEGE STATION, TX 77842-9521
PO BOX 9522, COLLEGE STATION, TX 77842-9522
PO BOX 9523, COLLEGE STATION, TX 77842-9523
PO BOX 9524, COLLEGE STATION, TX 77842-9524
PO BOX 9525, COLLEGE STATION, TX 77842-9525
PO BOX 9526, COLLEGE STATION, TX 77842-9526
PO BOX 9527, COLLEGE STATION, TX 77842-9527
PO BOX 9528, COLLEGE STATION, TX 77842-9528
PO BOX 9529, COLLEGE STATION, TX 77842-9529
PO BOX 9530, COLLEGE STATION, TX 77842-9530
PO BOX 9531, COLLEGE STATION, TX 77842-9531
PO BOX 9532, COLLEGE STATION, TX 77842-9532
PO BOX 9533, COLLEGE STATION, TX 77842-9533
PO BOX 9534, COLLEGE STATION, TX 77842-9534
PO BOX 9535, COLLEGE STATION, TX 77842-9535
PO BOX 9536, COLLEGE STATION, TX 77842-9536
PO BOX 9537, COLLEGE STATION, TX 77842-9537
PO BOX 9538, COLLEGE STATION, TX 77842-9538
PO BOX 9539, COLLEGE STATION, TX 77842-9539
PO BOX 9540, COLLEGE STATION, TX 77842-9540
PO BOX 9541, COLLEGE STATION, TX 77842-9541
PO BOX 9542, COLLEGE STATION, TX 77842-9542
PO BOX 9543, COLLEGE STATION, TX 77842-9543
PO BOX 9544, COLLEGE STATION, TX 77842-9544
PO BOX 9545, COLLEGE STATION, TX 77842-9545
PO BOX 9546, COLLEGE STATION, TX 77842-9546
PO BOX 9547, COLLEGE STATION, TX 77842-9547
PO BOX 9548, COLLEGE STATION, TX 77842-9548
PO BOX 9549, COLLEGE STATION, TX 77842-9549
PO BOX 9550, COLLEGE STATION, TX 77842-9550
PO BOX 9551, COLLEGE STATION, TX 77842-9551
PO BOX 9552, COLLEGE STATION, TX 77842-9552
PO BOX 9553, COLLEGE STATION, TX 77842-9553
PO BOX 9554, COLLEGE STATION, TX 77842-9554
PO BOX 9555, COLLEGE STATION, TX 77842-9555
PO BOX 9556, COLLEGE STATION, TX 77842-9556
PO BOX 9557, COLLEGE STATION, TX 77842-9557
PO BOX 9558, COLLEGE STATION, TX 77842-9558
PO BOX 9559, COLLEGE STATION, TX 77842-9559
PO BOX 9560, COLLEGE STATION, TX 77842-9560
PO BOX 9561, COLLEGE STATION, TX 77842-9561
PO BOX 9562, COLLEGE STATION, TX 77842-9562
PO BOX 9563, COLLEGE STATION, TX 77842-9563
PO BOX 9564, COLLEGE STATION, TX 77842-9564
PO BOX 9565, COLLEGE STATION, TX 77842-9565
PO BOX 9566, COLLEGE STATION, TX 77842-9566
PO BOX 9567, COLLEGE STATION, TX 77842-9567
PO BOX 9568, COLLEGE STATION, TX 77842-9568
PO BOX 9569, COLLEGE STATION, TX 77842-9569
PO BOX 9570, COLLEGE STATION, TX 77842-9570
PO BOX 9571, COLLEGE STATION, TX 77842-9571
PO BOX 9572, COLLEGE STATION, TX 77842-9572
PO BOX 9573, COLLEGE STATION, TX 77842-9573
PO BOX 9574, COLLEGE STATION, TX 77842-9574
PO BOX 9575, COLLEGE STATION, TX 77842-9575
PO BOX 9576, COLLEGE STATION, TX 77842-9576
PO BOX 9577, COLLEGE STATION, TX 77842-9577
PO BOX 9578, COLLEGE STATION, TX 77842-9578
PO BOX 9579, COLLEGE STATION, TX 77842-9579
PO BOX 9580, COLLEGE STATION, TX 77842-9580
PO BOX 9581, COLLEGE STATION, TX 77842-9581
PO BOX 9582, COLLEGE STATION, TX 77842-9582
PO BOX 9583, COLLEGE STATION, TX 77842-9583
PO BOX 9584, COLLEGE STATION, TX 77842-9584
PO BOX 9585, COLLEGE STATION, TX 77842-9585
PO BOX 9586, COLLEGE STATION, TX 77842-9586
PO BOX 9587, COLLEGE STATION, TX 77842-9587
PO BOX 9588, COLLEGE STATION, TX 77842-9588
PO BOX 9589, COLLEGE STATION, TX 77842-9589
PO BOX 9590, COLLEGE STATION, TX 77842-9590
PO BOX 9591, COLLEGE STATION, TX 77842-9591
PO BOX 9592, COLLEGE STATION, TX 77842-9592
PO BOX 9593, COLLEGE STATION, TX 77842-9593
PO BOX 9594, COLLEGE STATION, TX 77842-9594
PO BOX 9595, COLLEGE STATION, TX 77842-9595
PO BOX 9596, COLLEGE STATION, TX 77842-9596
PO BOX 9597, COLLEGE STATION, TX 77842-9597
PO BOX 9598, COLLEGE STATION, TX 77842-9598
PO BOX 9599, COLLEGE STATION, TX 77842-9599
PO BOX 9600, COLLEGE STATION, TX 77842-9600
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