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 541, PATTERSON, LA 70392-0541
PO BOX 542, PATTERSON, LA 70392-0542
PO BOX 543, PATTERSON, LA 70392-0543
PO BOX 544, PATTERSON, LA 70392-0544
PO BOX 545, PATTERSON, LA 70392-0545
PO BOX 546, PATTERSON, LA 70392-0546
PO BOX 547, PATTERSON, LA 70392-0547
PO BOX 548, PATTERSON, LA 70392-0548
PO BOX 549, PATTERSON, LA 70392-0549
PO BOX 550, PATTERSON, LA 70392-0550
PO BOX 551, PATTERSON, LA 70392-0551
PO BOX 552, PATTERSON, LA 70392-0552
PO BOX 553, PATTERSON, LA 70392-0553
PO BOX 554, PATTERSON, LA 70392-0554
PO BOX 555, PATTERSON, LA 70392-0555
PO BOX 556, PATTERSON, LA 70392-0556
PO BOX 557, PATTERSON, LA 70392-0557
PO BOX 558, PATTERSON, LA 70392-0558
PO BOX 559, PATTERSON, LA 70392-0559
PO BOX 560, PATTERSON, LA 70392-0560
PO BOX 561, PATTERSON, LA 70392-0561
PO BOX 562, PATTERSON, LA 70392-0562
PO BOX 563, PATTERSON, LA 70392-0563
PO BOX 564, PATTERSON, LA 70392-0564
PO BOX 565, PATTERSON, LA 70392-0565
PO BOX 566, PATTERSON, LA 70392-0566
PO BOX 567, PATTERSON, LA 70392-0567
PO BOX 568, PATTERSON, LA 70392-0568
PO BOX 569, PATTERSON, LA 70392-0569
PO BOX 570, PATTERSON, LA 70392-0570
PO BOX 571, PATTERSON, LA 70392-0571
PO BOX 572, PATTERSON, LA 70392-0572
PO BOX 573, PATTERSON, LA 70392-0573
PO BOX 574, PATTERSON, LA 70392-0574
PO BOX 575, PATTERSON, LA 70392-0575
PO BOX 576, PATTERSON, LA 70392-0576
PO BOX 577, PATTERSON, LA 70392-0577
PO BOX 578, PATTERSON, LA 70392-0578
PO BOX 579, PATTERSON, LA 70392-0579
PO BOX 580, PATTERSON, LA 70392-0580
PO BOX 581, PATTERSON, LA 70392-0581
PO BOX 582, PATTERSON, LA 70392-0582
PO BOX 583, PATTERSON, LA 70392-0583
PO BOX 584, PATTERSON, LA 70392-0584
PO BOX 585, PATTERSON, LA 70392-0585
PO BOX 586, PATTERSON, LA 70392-0586
PO BOX 587, PATTERSON, LA 70392-0587
PO BOX 588, PATTERSON, LA 70392-0588
PO BOX 589, PATTERSON, LA 70392-0589
PO BOX 590, PATTERSON, LA 70392-0590
PO BOX 591, PATTERSON, LA 70392-0591
PO BOX 592, PATTERSON, LA 70392-0592
PO BOX 593, PATTERSON, LA 70392-0593
PO BOX 594, PATTERSON, LA 70392-0594
PO BOX 595, PATTERSON, LA 70392-0595
PO BOX 596, PATTERSON, LA 70392-0596
PO BOX 597, PATTERSON, LA 70392-0597
PO BOX 598, PATTERSON, LA 70392-0598
PO BOX 599, PATTERSON, LA 70392-0599
PO BOX 600, PATTERSON, LA 70392-0600
PO BOX 601, PATTERSON, LA 70392-0601
PO BOX 602, PATTERSON, LA 70392-0602
PO BOX 603, PATTERSON, LA 70392-0603
PO BOX 604, PATTERSON, LA 70392-0604
PO BOX 605, PATTERSON, LA 70392-0605
PO BOX 606, PATTERSON, LA 70392-0606
PO BOX 607, PATTERSON, LA 70392-0607
PO BOX 608, PATTERSON, LA 70392-0608
PO BOX 609, PATTERSON, LA 70392-0609
PO BOX 610, PATTERSON, LA 70392-0610
PO BOX 611, PATTERSON, LA 70392-0611
PO BOX 612, PATTERSON, LA 70392-0612
PO BOX 613, PATTERSON, LA 70392-0613
PO BOX 614, PATTERSON, LA 70392-0614
PO BOX 615, PATTERSON, LA 70392-0615
PO BOX 616, PATTERSON, LA 70392-0616
PO BOX 617, PATTERSON, LA 70392-0617
PO BOX 618, PATTERSON, LA 70392-0618
PO BOX 619, PATTERSON, LA 70392-0619
PO BOX 620, PATTERSON, LA 70392-0620
PO BOX 621, PATTERSON, LA 70392-0621
PO BOX 622, PATTERSON, LA 70392-0622
PO BOX 623, PATTERSON, LA 70392-0623
PO BOX 624, PATTERSON, LA 70392-0624
PO BOX 625, PATTERSON, LA 70392-0625
PO BOX 626, PATTERSON, LA 70392-0626
PO BOX 627, PATTERSON, LA 70392-0627
PO BOX 628, PATTERSON, LA 70392-0628
PO BOX 629, PATTERSON, LA 70392-0629
PO BOX 630, PATTERSON, LA 70392-0630
PO BOX 631, PATTERSON, LA 70392-0631
PO BOX 632, PATTERSON, LA 70392-0632
PO BOX 633, PATTERSON, LA 70392-0633
PO BOX 634, PATTERSON, LA 70392-0634
PO BOX 635, PATTERSON, LA 70392-0635
PO BOX 636, PATTERSON, LA 70392-0636
PO BOX 637, PATTERSON, LA 70392-0637
PO BOX 638, PATTERSON, LA 70392-0638
PO BOX 639, PATTERSON, LA 70392-0639
PO BOX 640, PATTERSON, LA 70392-0640
PO BOX 641, PATTERSON, LA 70392-0641
PO BOX 642, PATTERSON, LA 70392-0642
PO BOX 643, PATTERSON, LA 70392-0643
PO BOX 644, PATTERSON, LA 70392-0644
PO BOX 645, PATTERSON, LA 70392-0645
PO BOX 646, PATTERSON, LA 70392-0646
PO BOX 647, PATTERSON, LA 70392-0647
PO BOX 648, PATTERSON, LA 70392-0648
PO BOX 649, PATTERSON, LA 70392-0649
PO BOX 650, PATTERSON, LA 70392-0650
PO BOX 651, PATTERSON, LA 70392-0651
PO BOX 652, PATTERSON, LA 70392-0652
PO BOX 653, PATTERSON, LA 70392-0653
PO BOX 654, PATTERSON, LA 70392-0654
PO BOX 655, PATTERSON, LA 70392-0655
PO BOX 656, PATTERSON, LA 70392-0656
PO BOX 657, PATTERSON, LA 70392-0657
PO BOX 658, PATTERSON, LA 70392-0658
PO BOX 659, PATTERSON, LA 70392-0659
PO BOX 660, PATTERSON, LA 70392-0660
PO BOX 661, PATTERSON, LA 70392-0661
PO BOX 662, PATTERSON, LA 70392-0662
PO BOX 663, PATTERSON, LA 70392-0663
PO BOX 664, PATTERSON, LA 70392-0664
PO BOX 665, PATTERSON, LA 70392-0665
PO BOX 666, PATTERSON, LA 70392-0666
PO BOX 667, PATTERSON, LA 70392-0667
PO BOX 668, PATTERSON, LA 70392-0668
PO BOX 669, PATTERSON, LA 70392-0669
PO BOX 670, PATTERSON, LA 70392-0670
PO BOX 671, PATTERSON, LA 70392-0671
PO BOX 672, PATTERSON, LA 70392-0672
PO BOX 673, PATTERSON, LA 70392-0673
PO BOX 674, PATTERSON, LA 70392-0674
PO BOX 675, PATTERSON, LA 70392-0675
PO BOX 676, PATTERSON, LA 70392-0676
PO BOX 677, PATTERSON, LA 70392-0677
PO BOX 678, PATTERSON, LA 70392-0678
PO BOX 679, PATTERSON, LA 70392-0679
PO BOX 680, PATTERSON, LA 70392-0680
PO BOX 681, PATTERSON, LA 70392-0681
PO BOX 682, PATTERSON, LA 70392-0682
PO BOX 683, PATTERSON, LA 70392-0683
PO BOX 684, PATTERSON, LA 70392-0684
PO BOX 685, PATTERSON, LA 70392-0685
PO BOX 686, PATTERSON, LA 70392-0686
PO BOX 687, PATTERSON, LA 70392-0687
PO BOX 688, PATTERSON, LA 70392-0688
PO BOX 689, PATTERSON, LA 70392-0689
PO BOX 690, PATTERSON, LA 70392-0690
PO BOX 691, PATTERSON, LA 70392-0691
PO BOX 692, PATTERSON, LA 70392-0692
PO BOX 693, PATTERSON, LA 70392-0693
PO BOX 694, PATTERSON, LA 70392-0694
PO BOX 695, PATTERSON, LA 70392-0695
PO BOX 696, PATTERSON, LA 70392-0696
PO BOX 697, PATTERSON, LA 70392-0697
PO BOX 698, PATTERSON, LA 70392-0698
PO BOX 699, PATTERSON, LA 70392-0699
PO BOX 700, PATTERSON, LA 70392-0700
PO BOX 701, PATTERSON, LA 70392-0701
PO BOX 702, PATTERSON, LA 70392-0702
PO BOX 703, PATTERSON, LA 70392-0703
PO BOX 704, PATTERSON, LA 70392-0704
PO BOX 705, PATTERSON, LA 70392-0705
PO BOX 706, PATTERSON, LA 70392-0706
PO BOX 707, PATTERSON, LA 70392-0707
PO BOX 708, PATTERSON, LA 70392-0708
PO BOX 709, PATTERSON, LA 70392-0709
PO BOX 710, PATTERSON, LA 70392-0710
PO BOX 711, PATTERSON, LA 70392-0711
PO BOX 712, PATTERSON, LA 70392-0712
PO BOX 713, PATTERSON, LA 70392-0713
PO BOX 714, PATTERSON, LA 70392-0714
PO BOX 715, PATTERSON, LA 70392-0715
PO BOX 716, PATTERSON, LA 70392-0716
PO BOX 717, PATTERSON, LA 70392-0717
PO BOX 718, PATTERSON, LA 70392-0718
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