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 601, SAN LUIS OBISPO, CA 93406-0601
PO BOX 602, SAN LUIS OBISPO, CA 93406-0602
PO BOX 603, SAN LUIS OBISPO, CA 93406-0603
PO BOX 604, SAN LUIS OBISPO, CA 93406-0604
PO BOX 605, SAN LUIS OBISPO, CA 93406-0605
PO BOX 606, SAN LUIS OBISPO, CA 93406-0606
PO BOX 607, SAN LUIS OBISPO, CA 93406-0607
PO BOX 608, SAN LUIS OBISPO, CA 93406-0608
PO BOX 609, SAN LUIS OBISPO, CA 93406-0609
PO BOX 610, SAN LUIS OBISPO, CA 93406-0610
PO BOX 611, SAN LUIS OBISPO, CA 93406-0611
PO BOX 612, SAN LUIS OBISPO, CA 93406-0612
PO BOX 613, SAN LUIS OBISPO, CA 93406-0613
PO BOX 614, SAN LUIS OBISPO, CA 93406-0614
PO BOX 615, SAN LUIS OBISPO, CA 93406-0615
PO BOX 616, SAN LUIS OBISPO, CA 93406-0616
PO BOX 617, SAN LUIS OBISPO, CA 93406-0617
PO BOX 618, SAN LUIS OBISPO, CA 93406-0618
PO BOX 619, SAN LUIS OBISPO, CA 93406-0619
PO BOX 620, SAN LUIS OBISPO, CA 93406-0620
PO BOX 621, SAN LUIS OBISPO, CA 93406-0621
PO BOX 622, SAN LUIS OBISPO, CA 93406-0622
PO BOX 623, SAN LUIS OBISPO, CA 93406-0623
PO BOX 624, SAN LUIS OBISPO, CA 93406-0624
PO BOX 625, SAN LUIS OBISPO, CA 93406-0625
PO BOX 626, SAN LUIS OBISPO, CA 93406-0626
PO BOX 627, SAN LUIS OBISPO, CA 93406-0627
PO BOX 628, SAN LUIS OBISPO, CA 93406-0628
PO BOX 629, SAN LUIS OBISPO, CA 93406-0629
PO BOX 630, SAN LUIS OBISPO, CA 93406-0630
PO BOX 631, SAN LUIS OBISPO, CA 93406-0631
PO BOX 632, SAN LUIS OBISPO, CA 93406-0632
PO BOX 633, SAN LUIS OBISPO, CA 93406-0633
PO BOX 634, SAN LUIS OBISPO, CA 93406-0634
PO BOX 635, SAN LUIS OBISPO, CA 93406-0635
PO BOX 636, SAN LUIS OBISPO, CA 93406-0636
PO BOX 637, SAN LUIS OBISPO, CA 93406-0637
PO BOX 638, SAN LUIS OBISPO, CA 93406-0638
PO BOX 639, SAN LUIS OBISPO, CA 93406-0639
PO BOX 640, SAN LUIS OBISPO, CA 93406-0640
PO BOX 641, SAN LUIS OBISPO, CA 93406-0641
PO BOX 642, SAN LUIS OBISPO, CA 93406-0642
PO BOX 643, SAN LUIS OBISPO, CA 93406-0643
PO BOX 644, SAN LUIS OBISPO, CA 93406-0644
PO BOX 645, SAN LUIS OBISPO, CA 93406-0645
PO BOX 646, SAN LUIS OBISPO, CA 93406-0646
PO BOX 647, SAN LUIS OBISPO, CA 93406-0647
PO BOX 648, SAN LUIS OBISPO, CA 93406-0648
PO BOX 649, SAN LUIS OBISPO, CA 93406-0649
PO BOX 650, SAN LUIS OBISPO, CA 93406-0650
PO BOX 651, SAN LUIS OBISPO, CA 93406-0651
PO BOX 652, SAN LUIS OBISPO, CA 93406-0652
PO BOX 653, SAN LUIS OBISPO, CA 93406-0653
PO BOX 654, SAN LUIS OBISPO, CA 93406-0654
PO BOX 655, SAN LUIS OBISPO, CA 93406-0655
PO BOX 656, SAN LUIS OBISPO, CA 93406-0656
PO BOX 657, SAN LUIS OBISPO, CA 93406-0657
PO BOX 658, SAN LUIS OBISPO, CA 93406-0658
PO BOX 659, SAN LUIS OBISPO, CA 93406-0659
PO BOX 660, SAN LUIS OBISPO, CA 93406-0660
PO BOX 661, SAN LUIS OBISPO, CA 93406-0661
PO BOX 662, SAN LUIS OBISPO, CA 93406-0662
PO BOX 663, SAN LUIS OBISPO, CA 93406-0663
PO BOX 664, SAN LUIS OBISPO, CA 93406-0664
PO BOX 665, SAN LUIS OBISPO, CA 93406-0665
PO BOX 666, SAN LUIS OBISPO, CA 93406-0666
PO BOX 667, SAN LUIS OBISPO, CA 93406-0667
PO BOX 668, SAN LUIS OBISPO, CA 93406-0668
PO BOX 669, SAN LUIS OBISPO, CA 93406-0669
PO BOX 670, SAN LUIS OBISPO, CA 93406-0670
PO BOX 671, SAN LUIS OBISPO, CA 93406-0671
PO BOX 672, SAN LUIS OBISPO, CA 93406-0672
PO BOX 673, SAN LUIS OBISPO, CA 93406-0673
PO BOX 674, SAN LUIS OBISPO, CA 93406-0674
PO BOX 675, SAN LUIS OBISPO, CA 93406-0675
PO BOX 676, SAN LUIS OBISPO, CA 93406-0676
PO BOX 677, SAN LUIS OBISPO, CA 93406-0677
PO BOX 678, SAN LUIS OBISPO, CA 93406-0678
PO BOX 679, SAN LUIS OBISPO, CA 93406-0679
PO BOX 680, SAN LUIS OBISPO, CA 93406-0680
PO BOX 681, SAN LUIS OBISPO, CA 93406-0681
PO BOX 682, SAN LUIS OBISPO, CA 93406-0682
PO BOX 683, SAN LUIS OBISPO, CA 93406-0683
PO BOX 684, SAN LUIS OBISPO, CA 93406-0684
PO BOX 685, SAN LUIS OBISPO, CA 93406-0685
PO BOX 686, SAN LUIS OBISPO, CA 93406-0686
PO BOX 687, SAN LUIS OBISPO, CA 93406-0687
PO BOX 688, SAN LUIS OBISPO, CA 93406-0688
PO BOX 689, SAN LUIS OBISPO, CA 93406-0689
PO BOX 690, SAN LUIS OBISPO, CA 93406-0690
PO BOX 691, SAN LUIS OBISPO, CA 93406-0691
PO BOX 692, SAN LUIS OBISPO, CA 93406-0692
PO BOX 693, SAN LUIS OBISPO, CA 93406-0693
PO BOX 694, SAN LUIS OBISPO, CA 93406-0694
PO BOX 695, SAN LUIS OBISPO, CA 93406-0695
PO BOX 696, SAN LUIS OBISPO, CA 93406-0696
PO BOX 697, SAN LUIS OBISPO, CA 93406-0697
PO BOX 698, SAN LUIS OBISPO, CA 93406-0698
PO BOX 699, SAN LUIS OBISPO, CA 93406-0699
PO BOX 700, SAN LUIS OBISPO, CA 93406-0700
PO BOX 701, SAN LUIS OBISPO, CA 93406-0701
PO BOX 702, SAN LUIS OBISPO, CA 93406-0702
PO BOX 703, SAN LUIS OBISPO, CA 93406-0703
PO BOX 704, SAN LUIS OBISPO, CA 93406-0704
PO BOX 705, SAN LUIS OBISPO, CA 93406-0705
PO BOX 706, SAN LUIS OBISPO, CA 93406-0706
PO BOX 707, SAN LUIS OBISPO, CA 93406-0707
PO BOX 708, SAN LUIS OBISPO, CA 93406-0708
PO BOX 709, SAN LUIS OBISPO, CA 93406-0709
PO BOX 710, SAN LUIS OBISPO, CA 93406-0710
PO BOX 711, SAN LUIS OBISPO, CA 93406-0711
PO BOX 712, SAN LUIS OBISPO, CA 93406-0712
PO BOX 713, SAN LUIS OBISPO, CA 93406-0713
PO BOX 714, SAN LUIS OBISPO, CA 93406-0714
PO BOX 715, SAN LUIS OBISPO, CA 93406-0715
PO BOX 716, SAN LUIS OBISPO, CA 93406-0716
PO BOX 717, SAN LUIS OBISPO, CA 93406-0717
PO BOX 718, SAN LUIS OBISPO, CA 93406-0718
PO BOX 719, SAN LUIS OBISPO, CA 93406-0719
PO BOX 720, SAN LUIS OBISPO, CA 93406-0720
PO BOX 721, SAN LUIS OBISPO, CA 93406-0721
PO BOX 722, SAN LUIS OBISPO, CA 93406-0722
PO BOX 723, SAN LUIS OBISPO, CA 93406-0723
PO BOX 724, SAN LUIS OBISPO, CA 93406-0724
PO BOX 725, SAN LUIS OBISPO, CA 93406-0725
PO BOX 726, SAN LUIS OBISPO, CA 93406-0726
PO BOX 727, SAN LUIS OBISPO, CA 93406-0727
PO BOX 728, SAN LUIS OBISPO, CA 93406-0728
PO BOX 729, SAN LUIS OBISPO, CA 93406-0729
PO BOX 730, SAN LUIS OBISPO, CA 93406-0730
PO BOX 731, SAN LUIS OBISPO, CA 93406-0731
Add new comment