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 451, CARLISLE, IA 50047-0451
PO BOX 452, CARLISLE, IA 50047-0452
PO BOX 453, CARLISLE, IA 50047-0453
PO BOX 454, CARLISLE, IA 50047-0454
PO BOX 455, CARLISLE, IA 50047-0455
PO BOX 456, CARLISLE, IA 50047-0456
PO BOX 457, CARLISLE, IA 50047-0457
PO BOX 458, CARLISLE, IA 50047-0458
PO BOX 459, CARLISLE, IA 50047-0459
PO BOX 460, CARLISLE, IA 50047-0460
PO BOX 461, CARLISLE, IA 50047-0461
PO BOX 462, CARLISLE, IA 50047-0462
PO BOX 463, CARLISLE, IA 50047-0463
PO BOX 464, CARLISLE, IA 50047-0464
PO BOX 465, CARLISLE, IA 50047-0465
PO BOX 466, CARLISLE, IA 50047-0466
PO BOX 467, CARLISLE, IA 50047-0467
PO BOX 468, CARLISLE, IA 50047-0468
PO BOX 469, CARLISLE, IA 50047-0469
PO BOX 470, CARLISLE, IA 50047-0470
PO BOX 471, CARLISLE, IA 50047-0471
PO BOX 472, CARLISLE, IA 50047-0472
PO BOX 473, CARLISLE, IA 50047-0473
PO BOX 474, CARLISLE, IA 50047-0474
PO BOX 475, CARLISLE, IA 50047-0475
PO BOX 476, CARLISLE, IA 50047-0476
PO BOX 477, CARLISLE, IA 50047-0477
PO BOX 478, CARLISLE, IA 50047-0478
PO BOX 479, CARLISLE, IA 50047-0479
PO BOX 480, CARLISLE, IA 50047-0480
PO BOX 481, CARLISLE, IA 50047-0481
PO BOX 482, CARLISLE, IA 50047-0482
PO BOX 483, CARLISLE, IA 50047-0483
PO BOX 484, CARLISLE, IA 50047-0484
PO BOX 485, CARLISLE, IA 50047-0485
PO BOX 486, CARLISLE, IA 50047-0486
PO BOX 487, CARLISLE, IA 50047-0487
PO BOX 488, CARLISLE, IA 50047-0488
PO BOX 489, CARLISLE, IA 50047-0489
PO BOX 490, CARLISLE, IA 50047-0490
PO BOX 491, CARLISLE, IA 50047-0491
PO BOX 492, CARLISLE, IA 50047-0492
PO BOX 493, CARLISLE, IA 50047-0493
PO BOX 494, CARLISLE, IA 50047-0494
PO BOX 495, CARLISLE, IA 50047-0495
PO BOX 496, CARLISLE, IA 50047-0496
PO BOX 497, CARLISLE, IA 50047-0497
PO BOX 498, CARLISLE, IA 50047-0498
PO BOX 499, CARLISLE, IA 50047-0499
PO BOX 500, CARLISLE, IA 50047-0500
PO BOX 501, CARLISLE, IA 50047-0501
PO BOX 502, CARLISLE, IA 50047-0502
PO BOX 503, CARLISLE, IA 50047-0503
PO BOX 504, CARLISLE, IA 50047-0504
PO BOX 505, CARLISLE, IA 50047-0505
PO BOX 506, CARLISLE, IA 50047-0506
PO BOX 507, CARLISLE, IA 50047-0507
PO BOX 508, CARLISLE, IA 50047-0508
PO BOX 509, CARLISLE, IA 50047-0509
PO BOX 510, CARLISLE, IA 50047-0510
PO BOX 511, CARLISLE, IA 50047-0511
PO BOX 512, CARLISLE, IA 50047-0512
PO BOX 513, CARLISLE, IA 50047-0513
PO BOX 514, CARLISLE, IA 50047-0514
PO BOX 515, CARLISLE, IA 50047-0515
PO BOX 516, CARLISLE, IA 50047-0516
PO BOX 517, CARLISLE, IA 50047-0517
PO BOX 518, CARLISLE, IA 50047-0518
PO BOX 519, CARLISLE, IA 50047-0519
PO BOX 520, CARLISLE, IA 50047-0520
PO BOX 521, CARLISLE, IA 50047-0521
PO BOX 522, CARLISLE, IA 50047-0522
PO BOX 523, CARLISLE, IA 50047-0523
PO BOX 524, CARLISLE, IA 50047-0524
PO BOX 525, CARLISLE, IA 50047-0525
PO BOX 526, CARLISLE, IA 50047-0526
PO BOX 527, CARLISLE, IA 50047-0527
PO BOX 528, CARLISLE, IA 50047-0528
PO BOX 529, CARLISLE, IA 50047-0529
PO BOX 530, CARLISLE, IA 50047-0530
PO BOX 531, CARLISLE, IA 50047-0531
PO BOX 532, CARLISLE, IA 50047-0532
PO BOX 533, CARLISLE, IA 50047-0533
PO BOX 534, CARLISLE, IA 50047-0534
PO BOX 535, CARLISLE, IA 50047-0535
PO BOX 536, CARLISLE, IA 50047-0536
PO BOX 537, CARLISLE, IA 50047-0537
PO BOX 538, CARLISLE, IA 50047-0538
PO BOX 539, CARLISLE, IA 50047-0539
PO BOX 540, CARLISLE, IA 50047-0540
PO BOX 541, CARLISLE, IA 50047-0541
PO BOX 542, CARLISLE, IA 50047-0542
PO BOX 543, CARLISLE, IA 50047-0543
PO BOX 544, CARLISLE, IA 50047-0544
PO BOX 545, CARLISLE, IA 50047-0545
PO BOX 546, CARLISLE, IA 50047-0546
PO BOX 547, CARLISLE, IA 50047-0547
PO BOX 548, CARLISLE, IA 50047-0548
PO BOX 549, CARLISLE, IA 50047-0549
PO BOX 550, CARLISLE, IA 50047-0550
PO BOX 551, CARLISLE, IA 50047-0551
PO BOX 552, CARLISLE, IA 50047-0552
PO BOX 553, CARLISLE, IA 50047-0553
PO BOX 554, CARLISLE, IA 50047-0554
PO BOX 555, CARLISLE, IA 50047-0555
PO BOX 556, CARLISLE, IA 50047-0556
PO BOX 557, CARLISLE, IA 50047-0557
PO BOX 558, CARLISLE, IA 50047-0558
PO BOX 559, CARLISLE, IA 50047-0559
PO BOX 560, CARLISLE, IA 50047-0560
PO BOX 561, CARLISLE, IA 50047-0561
PO BOX 562, CARLISLE, IA 50047-0562
PO BOX 563, CARLISLE, IA 50047-0563
PO BOX 564, CARLISLE, IA 50047-0564
PO BOX 565, CARLISLE, IA 50047-0565
PO BOX 566, CARLISLE, IA 50047-0566
PO BOX 567, CARLISLE, IA 50047-0567
PO BOX 568, CARLISLE, IA 50047-0568
PO BOX 569, CARLISLE, IA 50047-0569
PO BOX 570, CARLISLE, IA 50047-0570
PO BOX 571, CARLISLE, IA 50047-0571
PO BOX 572, CARLISLE, IA 50047-0572
PO BOX 573, CARLISLE, IA 50047-0573
PO BOX 574, CARLISLE, IA 50047-0574
PO BOX 575, CARLISLE, IA 50047-0575
PO BOX 576, CARLISLE, IA 50047-0576
PO BOX 577, CARLISLE, IA 50047-0577
PO BOX 578, CARLISLE, IA 50047-0578
PO BOX 579, CARLISLE, IA 50047-0579
PO BOX 580, CARLISLE, IA 50047-0580
PO BOX 581, CARLISLE, IA 50047-0581
PO BOX 582, CARLISLE, IA 50047-0582
PO BOX 583, CARLISLE, IA 50047-0583
PO BOX 584, CARLISLE, IA 50047-0584
PO BOX 585, CARLISLE, IA 50047-0585
PO BOX 586, CARLISLE, IA 50047-0586
PO BOX 587, CARLISLE, IA 50047-0587
PO BOX 588, CARLISLE, IA 50047-0588
PO BOX 589, CARLISLE, IA 50047-0589
PO BOX 590, CARLISLE, IA 50047-0590
PO BOX 591, CARLISLE, IA 50047-0591
PO BOX 592, CARLISLE, IA 50047-0592
PO BOX 593, CARLISLE, IA 50047-0593
PO BOX 594, CARLISLE, IA 50047-0594
PO BOX 595, CARLISLE, IA 50047-0595
PO BOX 596, CARLISLE, IA 50047-0596
PO BOX 597, CARLISLE, IA 50047-0597
PO BOX 598, CARLISLE, IA 50047-0598
PO BOX 599, CARLISLE, IA 50047-0599
PO BOX 600, CARLISLE, IA 50047-0600
PO BOX 601, CARLISLE, IA 50047-0601
PO BOX 602, CARLISLE, IA 50047-0602
PO BOX 603, CARLISLE, IA 50047-0603
PO BOX 604, CARLISLE, IA 50047-0604
PO BOX 605, CARLISLE, IA 50047-0605
PO BOX 606, CARLISLE, IA 50047-0606
PO BOX 607, CARLISLE, IA 50047-0607
PO BOX 608, CARLISLE, IA 50047-0608
PO BOX 609, CARLISLE, IA 50047-0609
PO BOX 610, CARLISLE, IA 50047-0610
PO BOX 611, CARLISLE, IA 50047-0611
PO BOX 612, CARLISLE, IA 50047-0612
PO BOX 613, CARLISLE, IA 50047-0613
PO BOX 614, CARLISLE, IA 50047-0614
PO BOX 615, CARLISLE, IA 50047-0615
PO BOX 616, CARLISLE, IA 50047-0616
PO BOX 617, CARLISLE, IA 50047-0617
PO BOX 618, CARLISLE, IA 50047-0618
PO BOX 619, CARLISLE, IA 50047-0619
PO BOX 620, CARLISLE, IA 50047-0620
PO BOX 621, CARLISLE, IA 50047-0621
PO BOX 622, CARLISLE, IA 50047-0622
PO BOX 623, CARLISLE, IA 50047-0623
PO BOX 624, CARLISLE, IA 50047-0624
PO BOX 625, CARLISLE, IA 50047-0625
PO BOX 626, CARLISLE, IA 50047-0626
PO BOX 627, CARLISLE, IA 50047-0627
PO BOX 628, CARLISLE, IA 50047-0628
PO BOX 629, CARLISLE, IA 50047-0629
PO BOX 630, CARLISLE, IA 50047-0630
PO BOX 631, CARLISLE, IA 50047-0631
PO BOX 632, CARLISLE, IA 50047-0632
PO BOX 633, CARLISLE, IA 50047-0633
PO BOX 634, CARLISLE, IA 50047-0634
PO BOX 635, CARLISLE, IA 50047-0635
PO BOX 636, CARLISLE, IA 50047-0636
PO BOX 637, CARLISLE, IA 50047-0637
PO BOX 638, CARLISLE, IA 50047-0638
PO BOX 639, CARLISLE, IA 50047-0639
PO BOX 640, CARLISLE, IA 50047-0640
PO BOX 641, CARLISLE, IA 50047-0641
PO BOX 642, CARLISLE, IA 50047-0642
PO BOX 643, CARLISLE, IA 50047-0643
PO BOX 644, CARLISLE, IA 50047-0644
PO BOX 645, CARLISLE, IA 50047-0645
PO BOX 646, CARLISLE, IA 50047-0646
PO BOX 647, CARLISLE, IA 50047-0647
PO BOX 648, CARLISLE, IA 50047-0648
PO BOX 649, CARLISLE, IA 50047-0649
PO BOX 650, CARLISLE, IA 50047-0650
PO BOX 651, CARLISLE, IA 50047-0651
Add new comment