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 481, RANCHO CORDOVA, CA 95741-0481
PO BOX 482, RANCHO CORDOVA, CA 95741-0482
PO BOX 483, RANCHO CORDOVA, CA 95741-0483
PO BOX 484, RANCHO CORDOVA, CA 95741-0484
PO BOX 485, RANCHO CORDOVA, CA 95741-0485
PO BOX 486, RANCHO CORDOVA, CA 95741-0486
PO BOX 487, RANCHO CORDOVA, CA 95741-0487
PO BOX 488, RANCHO CORDOVA, CA 95741-0488
PO BOX 489, RANCHO CORDOVA, CA 95741-0489
PO BOX 490, RANCHO CORDOVA, CA 95741-0490
PO BOX 491, RANCHO CORDOVA, CA 95741-0491
PO BOX 492, RANCHO CORDOVA, CA 95741-0492
PO BOX 493, RANCHO CORDOVA, CA 95741-0493
PO BOX 494, RANCHO CORDOVA, CA 95741-0494
PO BOX 495, RANCHO CORDOVA, CA 95741-0495
PO BOX 496, RANCHO CORDOVA, CA 95741-0496
PO BOX 497, RANCHO CORDOVA, CA 95741-0497
PO BOX 498, RANCHO CORDOVA, CA 95741-0498
PO BOX 499, RANCHO CORDOVA, CA 95741-0499
PO BOX 500, RANCHO CORDOVA, CA 95741-0500
PO BOX 501, RANCHO CORDOVA, CA 95741-0501
PO BOX 502, RANCHO CORDOVA, CA 95741-0502
PO BOX 503, RANCHO CORDOVA, CA 95741-0503
PO BOX 504, RANCHO CORDOVA, CA 95741-0504
PO BOX 505, RANCHO CORDOVA, CA 95741-0505
PO BOX 506, RANCHO CORDOVA, CA 95741-0506
PO BOX 507, RANCHO CORDOVA, CA 95741-0507
PO BOX 508, RANCHO CORDOVA, CA 95741-0508
PO BOX 509, RANCHO CORDOVA, CA 95741-0509
PO BOX 510, RANCHO CORDOVA, CA 95741-0510
PO BOX 511, RANCHO CORDOVA, CA 95741-0511
PO BOX 512, RANCHO CORDOVA, CA 95741-0512
PO BOX 513, RANCHO CORDOVA, CA 95741-0513
PO BOX 514, RANCHO CORDOVA, CA 95741-0514
PO BOX 515, RANCHO CORDOVA, CA 95741-0515
PO BOX 516, RANCHO CORDOVA, CA 95741-0516
PO BOX 517, RANCHO CORDOVA, CA 95741-0517
PO BOX 518, RANCHO CORDOVA, CA 95741-0518
PO BOX 519, RANCHO CORDOVA, CA 95741-0519
PO BOX 520, RANCHO CORDOVA, CA 95741-0520
PO BOX 521, RANCHO CORDOVA, CA 95741-0521
PO BOX 522, RANCHO CORDOVA, CA 95741-0522
PO BOX 523, RANCHO CORDOVA, CA 95741-0523
PO BOX 524, RANCHO CORDOVA, CA 95741-0524
PO BOX 525, RANCHO CORDOVA, CA 95741-0525
PO BOX 526, RANCHO CORDOVA, CA 95741-0526
PO BOX 527, RANCHO CORDOVA, CA 95741-0527
PO BOX 528, RANCHO CORDOVA, CA 95741-0528
PO BOX 529, RANCHO CORDOVA, CA 95741-0529
PO BOX 530, RANCHO CORDOVA, CA 95741-0530
PO BOX 531, RANCHO CORDOVA, CA 95741-0531
PO BOX 532, RANCHO CORDOVA, CA 95741-0532
PO BOX 533, RANCHO CORDOVA, CA 95741-0533
PO BOX 534, RANCHO CORDOVA, CA 95741-0534
PO BOX 535, RANCHO CORDOVA, CA 95741-0535
PO BOX 536, RANCHO CORDOVA, CA 95741-0536
PO BOX 537, RANCHO CORDOVA, CA 95741-0537
PO BOX 538, RANCHO CORDOVA, CA 95741-0538
PO BOX 539, RANCHO CORDOVA, CA 95741-0539
PO BOX 540, RANCHO CORDOVA, CA 95741-0540
PO BOX 541, RANCHO CORDOVA, CA 95741-0541
PO BOX 542, RANCHO CORDOVA, CA 95741-0542
PO BOX 543, RANCHO CORDOVA, CA 95741-0543
PO BOX 544, RANCHO CORDOVA, CA 95741-0544
PO BOX 545, RANCHO CORDOVA, CA 95741-0545
PO BOX 546, RANCHO CORDOVA, CA 95741-0546
PO BOX 547, RANCHO CORDOVA, CA 95741-0547
PO BOX 548, RANCHO CORDOVA, CA 95741-0548
PO BOX 549, RANCHO CORDOVA, CA 95741-0549
PO BOX 550, RANCHO CORDOVA, CA 95741-0550
PO BOX 551, RANCHO CORDOVA, CA 95741-0551
PO BOX 552, RANCHO CORDOVA, CA 95741-0552
PO BOX 553, RANCHO CORDOVA, CA 95741-0553
PO BOX 554, RANCHO CORDOVA, CA 95741-0554
PO BOX 555, RANCHO CORDOVA, CA 95741-0555
PO BOX 556, RANCHO CORDOVA, CA 95741-0556
PO BOX 557, RANCHO CORDOVA, CA 95741-0557
PO BOX 558, RANCHO CORDOVA, CA 95741-0558
PO BOX 559, RANCHO CORDOVA, CA 95741-0559
PO BOX 560, RANCHO CORDOVA, CA 95741-0560
PO BOX 561, RANCHO CORDOVA, CA 95741-0561
PO BOX 562, RANCHO CORDOVA, CA 95741-0562
PO BOX 563, RANCHO CORDOVA, CA 95741-0563
PO BOX 564, RANCHO CORDOVA, CA 95741-0564
PO BOX 565, RANCHO CORDOVA, CA 95741-0565
PO BOX 566, RANCHO CORDOVA, CA 95741-0566
PO BOX 567, RANCHO CORDOVA, CA 95741-0567
PO BOX 568, RANCHO CORDOVA, CA 95741-0568
PO BOX 569, RANCHO CORDOVA, CA 95741-0569
PO BOX 570, RANCHO CORDOVA, CA 95741-0570
PO BOX 571, RANCHO CORDOVA, CA 95741-0571
PO BOX 572, RANCHO CORDOVA, CA 95741-0572
PO BOX 573, RANCHO CORDOVA, CA 95741-0573
PO BOX 574, RANCHO CORDOVA, CA 95741-0574
PO BOX 575, RANCHO CORDOVA, CA 95741-0575
PO BOX 576, RANCHO CORDOVA, CA 95741-0576
PO BOX 577, RANCHO CORDOVA, CA 95741-0577
PO BOX 578, RANCHO CORDOVA, CA 95741-0578
PO BOX 579, RANCHO CORDOVA, CA 95741-0579
PO BOX 580, RANCHO CORDOVA, CA 95741-0580
PO BOX 581, RANCHO CORDOVA, CA 95741-0581
PO BOX 582, RANCHO CORDOVA, CA 95741-0582
PO BOX 583, RANCHO CORDOVA, CA 95741-0583
PO BOX 584, RANCHO CORDOVA, CA 95741-0584
PO BOX 585, RANCHO CORDOVA, CA 95741-0585
PO BOX 586, RANCHO CORDOVA, CA 95741-0586
PO BOX 587, RANCHO CORDOVA, CA 95741-0587
PO BOX 588, RANCHO CORDOVA, CA 95741-0588
PO BOX 589, RANCHO CORDOVA, CA 95741-0589
PO BOX 590, RANCHO CORDOVA, CA 95741-0590
PO BOX 591, RANCHO CORDOVA, CA 95741-0591
PO BOX 592, RANCHO CORDOVA, CA 95741-0592
PO BOX 593, RANCHO CORDOVA, CA 95741-0593
PO BOX 594, RANCHO CORDOVA, CA 95741-0594
PO BOX 595, RANCHO CORDOVA, CA 95741-0595
PO BOX 596, RANCHO CORDOVA, CA 95741-0596
PO BOX 597, RANCHO CORDOVA, CA 95741-0597
PO BOX 598, RANCHO CORDOVA, CA 95741-0598
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