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 551, ALTUS, OK 73522-0551
PO BOX 552, ALTUS, OK 73522-0552
PO BOX 553, ALTUS, OK 73522-0553
PO BOX 554, ALTUS, OK 73522-0554
PO BOX 555, ALTUS, OK 73522-0555
PO BOX 556, ALTUS, OK 73522-0556
PO BOX 557, ALTUS, OK 73522-0557
PO BOX 558, ALTUS, OK 73522-0558
PO BOX 559, ALTUS, OK 73522-0559
PO BOX 560, ALTUS, OK 73522-0560
PO BOX 561, ALTUS, OK 73522-0561
PO BOX 562, ALTUS, OK 73522-0562
PO BOX 563, ALTUS, OK 73522-0563
PO BOX 564, ALTUS, OK 73522-0564
PO BOX 565, ALTUS, OK 73522-0565
PO BOX 566, ALTUS, OK 73522-0566
PO BOX 567, ALTUS, OK 73522-0567
PO BOX 568, ALTUS, OK 73522-0568
PO BOX 569, ALTUS, OK 73522-0569
PO BOX 570, ALTUS, OK 73522-0570
PO BOX 571, ALTUS, OK 73522-0571
PO BOX 572, ALTUS, OK 73522-0572
PO BOX 573, ALTUS, OK 73522-0573
PO BOX 574, ALTUS, OK 73522-0574
PO BOX 575, ALTUS, OK 73522-0575
PO BOX 576, ALTUS, OK 73522-0576
PO BOX 577, ALTUS, OK 73522-0577
PO BOX 578, ALTUS, OK 73522-0578
PO BOX 579, ALTUS, OK 73522-0579
PO BOX 580, ALTUS, OK 73522-0580
PO BOX 581, ALTUS, OK 73522-0581
PO BOX 582, ALTUS, OK 73522-0582
PO BOX 583, ALTUS, OK 73522-0583
PO BOX 584, ALTUS, OK 73522-0584
PO BOX 585, ALTUS, OK 73522-0585
PO BOX 586, ALTUS, OK 73522-0586
PO BOX 587, ALTUS, OK 73522-0587
PO BOX 588, ALTUS, OK 73522-0588
PO BOX 589, ALTUS, OK 73522-0589
PO BOX 590, ALTUS, OK 73522-0590
PO BOX 591, ALTUS, OK 73522-0591
PO BOX 592, ALTUS, OK 73522-0592
PO BOX 593, ALTUS, OK 73522-0593
PO BOX 594, ALTUS, OK 73522-0594
PO BOX 595, ALTUS, OK 73522-0595
PO BOX 596, ALTUS, OK 73522-0596
PO BOX 597, ALTUS, OK 73522-0597
PO BOX 598, ALTUS, OK 73522-0598
PO BOX 599, ALTUS, OK 73522-0599
PO BOX 600, ALTUS, OK 73522-0600
PO BOX 601, ALTUS, OK 73522-0601
PO BOX 602, ALTUS, OK 73522-0602
PO BOX 603, ALTUS, OK 73522-0603
PO BOX 604, ALTUS, OK 73522-0604
PO BOX 605, ALTUS, OK 73522-0605
PO BOX 606, ALTUS, OK 73522-0606
PO BOX 607, ALTUS, OK 73522-0607
PO BOX 608, ALTUS, OK 73522-0608
PO BOX 609, ALTUS, OK 73522-0609
PO BOX 610, ALTUS, OK 73522-0610
PO BOX 611, ALTUS, OK 73522-0611
PO BOX 612, ALTUS, OK 73522-0612
PO BOX 613, ALTUS, OK 73522-0613
PO BOX 614, ALTUS, OK 73522-0614
PO BOX 615, ALTUS, OK 73522-0615
PO BOX 616, ALTUS, OK 73522-0616
PO BOX 617, ALTUS, OK 73522-0617
PO BOX 618, ALTUS, OK 73522-0618
PO BOX 619, ALTUS, OK 73522-0619
PO BOX 620, ALTUS, OK 73522-0620
PO BOX 621, ALTUS, OK 73522-0621
PO BOX 622, ALTUS, OK 73522-0622
PO BOX 623, ALTUS, OK 73522-0623
PO BOX 624, ALTUS, OK 73522-0624
PO BOX 625, ALTUS, OK 73522-0625
PO BOX 626, ALTUS, OK 73522-0626
PO BOX 627, ALTUS, OK 73522-0627
PO BOX 628, ALTUS, OK 73522-0628
PO BOX 629, ALTUS, OK 73522-0629
PO BOX 630, ALTUS, OK 73522-0630
PO BOX 631, ALTUS, OK 73522-0631
PO BOX 632, ALTUS, OK 73522-0632
PO BOX 633, ALTUS, OK 73522-0633
PO BOX 634, ALTUS, OK 73522-0634
PO BOX 635, ALTUS, OK 73522-0635
PO BOX 636, ALTUS, OK 73522-0636
PO BOX 637, ALTUS, OK 73522-0637
PO BOX 638, ALTUS, OK 73522-0638
PO BOX 639, ALTUS, OK 73522-0639
PO BOX 640, ALTUS, OK 73522-0640
PO BOX 641, ALTUS, OK 73522-0641
PO BOX 642, ALTUS, OK 73522-0642
PO BOX 643, ALTUS, OK 73522-0643
PO BOX 644, ALTUS, OK 73522-0644
PO BOX 645, ALTUS, OK 73522-0645
PO BOX 646, ALTUS, OK 73522-0646
PO BOX 647, ALTUS, OK 73522-0647
PO BOX 648, ALTUS, OK 73522-0648
PO BOX 649, ALTUS, OK 73522-0649
PO BOX 650, ALTUS, OK 73522-0650
PO BOX 651, ALTUS, OK 73522-0651
PO BOX 652, ALTUS, OK 73522-0652
PO BOX 653, ALTUS, OK 73522-0653
PO BOX 654, ALTUS, OK 73522-0654
PO BOX 655, ALTUS, OK 73522-0655
PO BOX 656, ALTUS, OK 73522-0656
PO BOX 657, ALTUS, OK 73522-0657
PO BOX 658, ALTUS, OK 73522-0658
PO BOX 659, ALTUS, OK 73522-0659
PO BOX 660, ALTUS, OK 73522-0660
PO BOX 661, ALTUS, OK 73522-0661
PO BOX 662, ALTUS, OK 73522-0662
PO BOX 663, ALTUS, OK 73522-0663
PO BOX 664, ALTUS, OK 73522-0664
PO BOX 665, ALTUS, OK 73522-0665
PO BOX 666, ALTUS, OK 73522-0666
PO BOX 667, ALTUS, OK 73522-0667
PO BOX 668, ALTUS, OK 73522-0668
PO BOX 669, ALTUS, OK 73522-0669
PO BOX 670, ALTUS, OK 73522-0670
PO BOX 671, ALTUS, OK 73522-0671
PO BOX 672, ALTUS, OK 73522-0672
PO BOX 673, ALTUS, OK 73522-0673
PO BOX 674, ALTUS, OK 73522-0674
PO BOX 675, ALTUS, OK 73522-0675
PO BOX 676, ALTUS, OK 73522-0676
PO BOX 677, ALTUS, OK 73522-0677
PO BOX 678, ALTUS, OK 73522-0678
PO BOX 679, ALTUS, OK 73522-0679
PO BOX 680, ALTUS, OK 73522-0680
PO BOX 681, ALTUS, OK 73522-0681
PO BOX 682, ALTUS, OK 73522-0682
PO BOX 683, ALTUS, OK 73522-0683
PO BOX 684, ALTUS, OK 73522-0684
PO BOX 685, ALTUS, OK 73522-0685
PO BOX 686, ALTUS, OK 73522-0686
PO BOX 687, ALTUS, OK 73522-0687
PO BOX 688, ALTUS, OK 73522-0688
PO BOX 689, ALTUS, OK 73522-0689
PO BOX 690, ALTUS, OK 73522-0690
PO BOX 691, ALTUS, OK 73522-0691
PO BOX 692, ALTUS, OK 73522-0692
PO BOX 693, ALTUS, OK 73522-0693
PO BOX 694, ALTUS, OK 73522-0694
PO BOX 695, ALTUS, OK 73522-0695
PO BOX 696, ALTUS, OK 73522-0696
PO BOX 697, ALTUS, OK 73522-0697
PO BOX 698, ALTUS, OK 73522-0698
PO BOX 699, ALTUS, OK 73522-0699
PO BOX 700, ALTUS, OK 73522-0700
PO BOX 701, ALTUS, OK 73522-0701
PO BOX 702, ALTUS, OK 73522-0702
PO BOX 703, ALTUS, OK 73522-0703
PO BOX 704, ALTUS, OK 73522-0704
PO BOX 705, ALTUS, OK 73522-0705
PO BOX 706, ALTUS, OK 73522-0706
PO BOX 707, ALTUS, OK 73522-0707
PO BOX 708, ALTUS, OK 73522-0708
PO BOX 709, ALTUS, OK 73522-0709
PO BOX 710, ALTUS, OK 73522-0710
PO BOX 711, ALTUS, OK 73522-0711
PO BOX 712, ALTUS, OK 73522-0712
PO BOX 713, ALTUS, OK 73522-0713
PO BOX 714, ALTUS, OK 73522-0714
PO BOX 715, ALTUS, OK 73522-0715
PO BOX 716, ALTUS, OK 73522-0716
PO BOX 717, ALTUS, OK 73522-0717
PO BOX 718, ALTUS, OK 73522-0718
PO BOX 719, ALTUS, OK 73522-0719
PO BOX 720, ALTUS, OK 73522-0720
PO BOX 721, ALTUS, OK 73522-0721
PO BOX 722, ALTUS, OK 73522-0722
PO BOX 723, ALTUS, OK 73522-0723
PO BOX 724, ALTUS, OK 73522-0724
PO BOX 725, ALTUS, OK 73522-0725
PO BOX 726, ALTUS, OK 73522-0726
PO BOX 727, ALTUS, OK 73522-0727
PO BOX 728, ALTUS, OK 73522-0728
PO BOX 729, ALTUS, OK 73522-0729
PO BOX 730, ALTUS, OK 73522-0730
PO BOX 731, ALTUS, OK 73522-0731
PO BOX 732, ALTUS, OK 73522-0732
PO BOX 733, ALTUS, OK 73522-0733
PO BOX 734, ALTUS, OK 73522-0734
PO BOX 735, ALTUS, OK 73522-0735
PO BOX 736, ALTUS, OK 73522-0736
PO BOX 737, ALTUS, OK 73522-0737
PO BOX 738, ALTUS, OK 73522-0738
PO BOX 739, ALTUS, OK 73522-0739
PO BOX 740, ALTUS, OK 73522-0740
PO BOX 741, ALTUS, OK 73522-0741
PO BOX 742, ALTUS, OK 73522-0742
PO BOX 743, ALTUS, OK 73522-0743
PO BOX 744, ALTUS, OK 73522-0744
PO BOX 745, ALTUS, OK 73522-0745
PO BOX 746, ALTUS, OK 73522-0746
PO BOX 747, ALTUS, OK 73522-0747
PO BOX 748, ALTUS, OK 73522-0748
PO BOX 749, ALTUS, OK 73522-0749
PO BOX 750, ALTUS, OK 73522-0750
PO BOX 751, ALTUS, OK 73522-0751
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