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, RIDGECREST, NC 28770-0541
PO BOX 542, RIDGECREST, NC 28770-0542
PO BOX 543, RIDGECREST, NC 28770-0543
PO BOX 544, RIDGECREST, NC 28770-0544
PO BOX 545, RIDGECREST, NC 28770-0545
PO BOX 546, RIDGECREST, NC 28770-0546
PO BOX 547, RIDGECREST, NC 28770-0547
PO BOX 548, RIDGECREST, NC 28770-0548
PO BOX 549, RIDGECREST, NC 28770-0549
PO BOX 550, RIDGECREST, NC 28770-0550
PO BOX 551, RIDGECREST, NC 28770-0551
PO BOX 552, RIDGECREST, NC 28770-0552
PO BOX 553, RIDGECREST, NC 28770-0553
PO BOX 554, RIDGECREST, NC 28770-0554
PO BOX 555, RIDGECREST, NC 28770-0555
PO BOX 556, RIDGECREST, NC 28770-0556
PO BOX 557, RIDGECREST, NC 28770-0557
PO BOX 558, RIDGECREST, NC 28770-0558
PO BOX 559, RIDGECREST, NC 28770-0559
PO BOX 560, RIDGECREST, NC 28770-0560
PO BOX 561, RIDGECREST, NC 28770-0561
PO BOX 562, RIDGECREST, NC 28770-0562
PO BOX 563, RIDGECREST, NC 28770-0563
PO BOX 564, RIDGECREST, NC 28770-0564
PO BOX 565, RIDGECREST, NC 28770-0565
PO BOX 566, RIDGECREST, NC 28770-0566
PO BOX 567, RIDGECREST, NC 28770-0567
PO BOX 568, RIDGECREST, NC 28770-0568
PO BOX 569, RIDGECREST, NC 28770-0569
PO BOX 570, RIDGECREST, NC 28770-0570
PO BOX 571, RIDGECREST, NC 28770-0571
PO BOX 572, RIDGECREST, NC 28770-0572
PO BOX 573, RIDGECREST, NC 28770-0573
PO BOX 574, RIDGECREST, NC 28770-0574
PO BOX 575, RIDGECREST, NC 28770-0575
PO BOX 576, RIDGECREST, NC 28770-0576
PO BOX 577, RIDGECREST, NC 28770-0577
PO BOX 578, RIDGECREST, NC 28770-0578
PO BOX 579, RIDGECREST, NC 28770-0579
PO BOX 580, RIDGECREST, NC 28770-0580
PO BOX 581, RIDGECREST, NC 28770-0581
PO BOX 582, RIDGECREST, NC 28770-0582
PO BOX 583, RIDGECREST, NC 28770-0583
PO BOX 584, RIDGECREST, NC 28770-0584
PO BOX 585, RIDGECREST, NC 28770-0585
PO BOX 586, RIDGECREST, NC 28770-0586
PO BOX 587, RIDGECREST, NC 28770-0587
PO BOX 588, RIDGECREST, NC 28770-0588
PO BOX 589, RIDGECREST, NC 28770-0589
PO BOX 590, RIDGECREST, NC 28770-0590
PO BOX 591, RIDGECREST, NC 28770-0591
PO BOX 592, RIDGECREST, NC 28770-0592
PO BOX 593, RIDGECREST, NC 28770-0593
PO BOX 594, RIDGECREST, NC 28770-0594
PO BOX 595, RIDGECREST, NC 28770-0595
PO BOX 596, RIDGECREST, NC 28770-0596
PO BOX 597, RIDGECREST, NC 28770-0597
PO BOX 598, RIDGECREST, NC 28770-0598
PO BOX 599, RIDGECREST, NC 28770-0599
PO BOX 600, RIDGECREST, NC 28770-0600
PO BOX 601, RIDGECREST, NC 28770-0601
PO BOX 602, RIDGECREST, NC 28770-0602
PO BOX 603, RIDGECREST, NC 28770-0603
PO BOX 604, RIDGECREST, NC 28770-0604
PO BOX 605, RIDGECREST, NC 28770-0605
PO BOX 606, RIDGECREST, NC 28770-0606
PO BOX 607, RIDGECREST, NC 28770-0607
PO BOX 608, RIDGECREST, NC 28770-0608
PO BOX 609, RIDGECREST, NC 28770-0609
PO BOX 610, RIDGECREST, NC 28770-0610
PO BOX 611, RIDGECREST, NC 28770-0611
PO BOX 612, RIDGECREST, NC 28770-0612
PO BOX 613, RIDGECREST, NC 28770-0613
PO BOX 614, RIDGECREST, NC 28770-0614
PO BOX 615, RIDGECREST, NC 28770-0615
PO BOX 616, RIDGECREST, NC 28770-0616
PO BOX 617, RIDGECREST, NC 28770-0617
PO BOX 618, RIDGECREST, NC 28770-0618
PO BOX 619, RIDGECREST, NC 28770-0619
PO BOX 620, RIDGECREST, NC 28770-0620
PO BOX 621, RIDGECREST, NC 28770-0621
PO BOX 622, RIDGECREST, NC 28770-0622
PO BOX 623, RIDGECREST, NC 28770-0623
PO BOX 624, RIDGECREST, NC 28770-0624
PO BOX 625, RIDGECREST, NC 28770-0625
PO BOX 626, RIDGECREST, NC 28770-0626
PO BOX 627, RIDGECREST, NC 28770-0627
PO BOX 628, RIDGECREST, NC 28770-0628
PO BOX 629, RIDGECREST, NC 28770-0629
PO BOX 630, RIDGECREST, NC 28770-0630
PO BOX 631, RIDGECREST, NC 28770-0631
PO BOX 632, RIDGECREST, NC 28770-0632
PO BOX 633, RIDGECREST, NC 28770-0633
PO BOX 634, RIDGECREST, NC 28770-0634
PO BOX 635, RIDGECREST, NC 28770-0635
PO BOX 636, RIDGECREST, NC 28770-0636
PO BOX 637, RIDGECREST, NC 28770-0637
PO BOX 638, RIDGECREST, NC 28770-0638
PO BOX 639, RIDGECREST, NC 28770-0639
PO BOX 640, RIDGECREST, NC 28770-0640
PO BOX 641, RIDGECREST, NC 28770-0641
PO BOX 642, RIDGECREST, NC 28770-0642
PO BOX 643, RIDGECREST, NC 28770-0643
PO BOX 644, RIDGECREST, NC 28770-0644
PO BOX 645, RIDGECREST, NC 28770-0645
PO BOX 646, RIDGECREST, NC 28770-0646
PO BOX 647, RIDGECREST, NC 28770-0647
PO BOX 648, RIDGECREST, NC 28770-0648
PO BOX 649, RIDGECREST, NC 28770-0649
PO BOX 650, RIDGECREST, NC 28770-0650
PO BOX 651, RIDGECREST, NC 28770-0651
PO BOX 652, RIDGECREST, NC 28770-0652
PO BOX 653, RIDGECREST, NC 28770-0653
PO BOX 654, RIDGECREST, NC 28770-0654
PO BOX 655, RIDGECREST, NC 28770-0655
PO BOX 656, RIDGECREST, NC 28770-0656
PO BOX 657, RIDGECREST, NC 28770-0657
PO BOX 658, RIDGECREST, NC 28770-0658
PO BOX 659, RIDGECREST, NC 28770-0659
PO BOX 660, RIDGECREST, NC 28770-0660
PO BOX 661, RIDGECREST, NC 28770-0661
PO BOX 662, RIDGECREST, NC 28770-0662
PO BOX 663, RIDGECREST, NC 28770-0663
PO BOX 664, RIDGECREST, NC 28770-0664
PO BOX 665, RIDGECREST, NC 28770-0665
PO BOX 666, RIDGECREST, NC 28770-0666
PO BOX 667, RIDGECREST, NC 28770-0667
PO BOX 668, RIDGECREST, NC 28770-0668
PO BOX 669, RIDGECREST, NC 28770-0669
PO BOX 670, RIDGECREST, NC 28770-0670
PO BOX 671, RIDGECREST, NC 28770-0671
PO BOX 672, RIDGECREST, NC 28770-0672
PO BOX 673, RIDGECREST, NC 28770-0673
PO BOX 674, RIDGECREST, NC 28770-0674
PO BOX 675, RIDGECREST, NC 28770-0675
PO BOX 676, RIDGECREST, NC 28770-0676
PO BOX 677, RIDGECREST, NC 28770-0677
PO BOX 678, RIDGECREST, NC 28770-0678
PO BOX 679, RIDGECREST, NC 28770-0679
PO BOX 680, RIDGECREST, NC 28770-0680
PO BOX 681, RIDGECREST, NC 28770-0681
PO BOX 682, RIDGECREST, NC 28770-0682
PO BOX 683, RIDGECREST, NC 28770-0683
PO BOX 684, RIDGECREST, NC 28770-0684
PO BOX 685, RIDGECREST, NC 28770-0685
PO BOX 686, RIDGECREST, NC 28770-0686
PO BOX 687, RIDGECREST, NC 28770-0687
PO BOX 688, RIDGECREST, NC 28770-0688
PO BOX 689, RIDGECREST, NC 28770-0689
PO BOX 690, RIDGECREST, NC 28770-0690
PO BOX 691, RIDGECREST, NC 28770-0691
PO BOX 692, RIDGECREST, NC 28770-0692
PO BOX 693, RIDGECREST, NC 28770-0693
PO BOX 694, RIDGECREST, NC 28770-0694
PO BOX 695, RIDGECREST, NC 28770-0695
PO BOX 696, RIDGECREST, NC 28770-0696
PO BOX 697, RIDGECREST, NC 28770-0697
PO BOX 698, RIDGECREST, NC 28770-0698
PO BOX 699, RIDGECREST, NC 28770-0699
PO BOX 700, RIDGECREST, NC 28770-0700
PO BOX 701, RIDGECREST, NC 28770-0701
PO BOX 702, RIDGECREST, NC 28770-0702
PO BOX 703, RIDGECREST, NC 28770-0703
PO BOX 704, RIDGECREST, NC 28770-0704
PO BOX 705, RIDGECREST, NC 28770-0705
PO BOX 706, RIDGECREST, NC 28770-0706
PO BOX 707, RIDGECREST, NC 28770-0707
PO BOX 708, RIDGECREST, NC 28770-0708
PO BOX 709, RIDGECREST, NC 28770-0709
PO BOX 710, RIDGECREST, NC 28770-0710
PO BOX 711, RIDGECREST, NC 28770-0711
PO BOX 712, RIDGECREST, NC 28770-0712
PO BOX 713, RIDGECREST, NC 28770-0713
PO BOX 714, RIDGECREST, NC 28770-0714
PO BOX 715, RIDGECREST, NC 28770-0715
PO BOX 716, RIDGECREST, NC 28770-0716
PO BOX 717, RIDGECREST, NC 28770-0717
PO BOX 718, RIDGECREST, NC 28770-0718
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