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 501, ELEPHANT BUTTE, NM 87935-0501
PO BOX 502, ELEPHANT BUTTE, NM 87935-0502
PO BOX 503, ELEPHANT BUTTE, NM 87935-0503
PO BOX 504, ELEPHANT BUTTE, NM 87935-0504
PO BOX 505, ELEPHANT BUTTE, NM 87935-0505
PO BOX 506, ELEPHANT BUTTE, NM 87935-0506
PO BOX 507, ELEPHANT BUTTE, NM 87935-0507
PO BOX 508, ELEPHANT BUTTE, NM 87935-0508
PO BOX 509, ELEPHANT BUTTE, NM 87935-0509
PO BOX 510, ELEPHANT BUTTE, NM 87935-0510
PO BOX 511, ELEPHANT BUTTE, NM 87935-0511
PO BOX 512, ELEPHANT BUTTE, NM 87935-0512
PO BOX 513, ELEPHANT BUTTE, NM 87935-0513
PO BOX 514, ELEPHANT BUTTE, NM 87935-0514
PO BOX 515, ELEPHANT BUTTE, NM 87935-0515
PO BOX 516, ELEPHANT BUTTE, NM 87935-0516
PO BOX 517, ELEPHANT BUTTE, NM 87935-0517
PO BOX 518, ELEPHANT BUTTE, NM 87935-0518
PO BOX 519, ELEPHANT BUTTE, NM 87935-0519
PO BOX 520, ELEPHANT BUTTE, NM 87935-0520
PO BOX 521, ELEPHANT BUTTE, NM 87935-0521
PO BOX 522, ELEPHANT BUTTE, NM 87935-0522
PO BOX 523, ELEPHANT BUTTE, NM 87935-0523
PO BOX 524, ELEPHANT BUTTE, NM 87935-0524
PO BOX 525, ELEPHANT BUTTE, NM 87935-0525
PO BOX 526, ELEPHANT BUTTE, NM 87935-0526
PO BOX 527, ELEPHANT BUTTE, NM 87935-0527
PO BOX 528, ELEPHANT BUTTE, NM 87935-0528
PO BOX 529, ELEPHANT BUTTE, NM 87935-0529
PO BOX 530, ELEPHANT BUTTE, NM 87935-0530
PO BOX 531, ELEPHANT BUTTE, NM 87935-0531
PO BOX 532, ELEPHANT BUTTE, NM 87935-0532
PO BOX 533, ELEPHANT BUTTE, NM 87935-0533
PO BOX 534, ELEPHANT BUTTE, NM 87935-0534
PO BOX 535, ELEPHANT BUTTE, NM 87935-0535
PO BOX 536, ELEPHANT BUTTE, NM 87935-0536
PO BOX 537, ELEPHANT BUTTE, NM 87935-0537
PO BOX 538, ELEPHANT BUTTE, NM 87935-0538
PO BOX 539, ELEPHANT BUTTE, NM 87935-0539
PO BOX 540, ELEPHANT BUTTE, NM 87935-0540
PO BOX 541, ELEPHANT BUTTE, NM 87935-0541
PO BOX 542, ELEPHANT BUTTE, NM 87935-0542
PO BOX 543, ELEPHANT BUTTE, NM 87935-0543
PO BOX 544, ELEPHANT BUTTE, NM 87935-0544
PO BOX 545, ELEPHANT BUTTE, NM 87935-0545
PO BOX 546, ELEPHANT BUTTE, NM 87935-0546
PO BOX 547, ELEPHANT BUTTE, NM 87935-0547
PO BOX 548, ELEPHANT BUTTE, NM 87935-0548
PO BOX 549, ELEPHANT BUTTE, NM 87935-0549
PO BOX 550, ELEPHANT BUTTE, NM 87935-0550
PO BOX 551, ELEPHANT BUTTE, NM 87935-0551
PO BOX 552, ELEPHANT BUTTE, NM 87935-0552
PO BOX 553, ELEPHANT BUTTE, NM 87935-0553
PO BOX 554, ELEPHANT BUTTE, NM 87935-0554
PO BOX 555, ELEPHANT BUTTE, NM 87935-0555
PO BOX 556, ELEPHANT BUTTE, NM 87935-0556
PO BOX 557, ELEPHANT BUTTE, NM 87935-0557
PO BOX 558, ELEPHANT BUTTE, NM 87935-0558
PO BOX 559, ELEPHANT BUTTE, NM 87935-0559
PO BOX 560, ELEPHANT BUTTE, NM 87935-0560
PO BOX 561, ELEPHANT BUTTE, NM 87935-0561
PO BOX 562, ELEPHANT BUTTE, NM 87935-0562
PO BOX 563, ELEPHANT BUTTE, NM 87935-0563
PO BOX 564, ELEPHANT BUTTE, NM 87935-0564
PO BOX 565, ELEPHANT BUTTE, NM 87935-0565
PO BOX 566, ELEPHANT BUTTE, NM 87935-0566
PO BOX 567, ELEPHANT BUTTE, NM 87935-0567
PO BOX 568, ELEPHANT BUTTE, NM 87935-0568
PO BOX 569, ELEPHANT BUTTE, NM 87935-0569
PO BOX 570, ELEPHANT BUTTE, NM 87935-0570
PO BOX 571, ELEPHANT BUTTE, NM 87935-0571
PO BOX 572, ELEPHANT BUTTE, NM 87935-0572
PO BOX 573, ELEPHANT BUTTE, NM 87935-0573
PO BOX 574, ELEPHANT BUTTE, NM 87935-0574
PO BOX 575, ELEPHANT BUTTE, NM 87935-0575
PO BOX 576, ELEPHANT BUTTE, NM 87935-0576
PO BOX 577, ELEPHANT BUTTE, NM 87935-0577
PO BOX 578, ELEPHANT BUTTE, NM 87935-0578
PO BOX 579, ELEPHANT BUTTE, NM 87935-0579
PO BOX 580, ELEPHANT BUTTE, NM 87935-0580
PO BOX 581, ELEPHANT BUTTE, NM 87935-0581
PO BOX 582, ELEPHANT BUTTE, NM 87935-0582
PO BOX 583, ELEPHANT BUTTE, NM 87935-0583
PO BOX 584, ELEPHANT BUTTE, NM 87935-0584
PO BOX 585, ELEPHANT BUTTE, NM 87935-0585
PO BOX 586, ELEPHANT BUTTE, NM 87935-0586
PO BOX 587, ELEPHANT BUTTE, NM 87935-0587
PO BOX 588, ELEPHANT BUTTE, NM 87935-0588
PO BOX 589, ELEPHANT BUTTE, NM 87935-0589
PO BOX 590, ELEPHANT BUTTE, NM 87935-0590
PO BOX 591, ELEPHANT BUTTE, NM 87935-0591
PO BOX 592, ELEPHANT BUTTE, NM 87935-0592
PO BOX 593, ELEPHANT BUTTE, NM 87935-0593
PO BOX 594, ELEPHANT BUTTE, NM 87935-0594
PO BOX 595, ELEPHANT BUTTE, NM 87935-0595
PO BOX 596, ELEPHANT BUTTE, NM 87935-0596
PO BOX 597, ELEPHANT BUTTE, NM 87935-0597
PO BOX 598, ELEPHANT BUTTE, NM 87935-0598
PO BOX 599, ELEPHANT BUTTE, NM 87935-0599
PO BOX 600, ELEPHANT BUTTE, NM 87935-0600
PO BOX 601, ELEPHANT BUTTE, NM 87935-0601
PO BOX 602, ELEPHANT BUTTE, NM 87935-0602
PO BOX 603, ELEPHANT BUTTE, NM 87935-0603
PO BOX 604, ELEPHANT BUTTE, NM 87935-0604
PO BOX 605, ELEPHANT BUTTE, NM 87935-0605
PO BOX 606, ELEPHANT BUTTE, NM 87935-0606
PO BOX 607, ELEPHANT BUTTE, NM 87935-0607
PO BOX 608, ELEPHANT BUTTE, NM 87935-0608
PO BOX 609, ELEPHANT BUTTE, NM 87935-0609
PO BOX 610, ELEPHANT BUTTE, NM 87935-0610
PO BOX 611, ELEPHANT BUTTE, NM 87935-0611
PO BOX 612, ELEPHANT BUTTE, NM 87935-0612
PO BOX 613, ELEPHANT BUTTE, NM 87935-0613
PO BOX 614, ELEPHANT BUTTE, NM 87935-0614
PO BOX 615, ELEPHANT BUTTE, NM 87935-0615
PO BOX 616, ELEPHANT BUTTE, NM 87935-0616
PO BOX 617, ELEPHANT BUTTE, NM 87935-0617
PO BOX 618, ELEPHANT BUTTE, NM 87935-0618
PO BOX 619, ELEPHANT BUTTE, NM 87935-0619
PO BOX 620, ELEPHANT BUTTE, NM 87935-0620
PO BOX 621, ELEPHANT BUTTE, NM 87935-0621
PO BOX 622, ELEPHANT BUTTE, NM 87935-0622
PO BOX 623, ELEPHANT BUTTE, NM 87935-0623
PO BOX 624, ELEPHANT BUTTE, NM 87935-0624
PO BOX 625, ELEPHANT BUTTE, NM 87935-0625
PO BOX 626, ELEPHANT BUTTE, NM 87935-0626
PO BOX 627, ELEPHANT BUTTE, NM 87935-0627
PO BOX 628, ELEPHANT BUTTE, NM 87935-0628
PO BOX 629, ELEPHANT BUTTE, NM 87935-0629
PO BOX 630, ELEPHANT BUTTE, NM 87935-0630
PO BOX 631, ELEPHANT BUTTE, NM 87935-0631
PO BOX 632, ELEPHANT BUTTE, NM 87935-0632
PO BOX 633, ELEPHANT BUTTE, NM 87935-0633
PO BOX 634, ELEPHANT BUTTE, NM 87935-0634
PO BOX 635, ELEPHANT BUTTE, NM 87935-0635
PO BOX 636, ELEPHANT BUTTE, NM 87935-0636
PO BOX 637, ELEPHANT BUTTE, NM 87935-0637
PO BOX 638, ELEPHANT BUTTE, NM 87935-0638
PO BOX 639, ELEPHANT BUTTE, NM 87935-0639
PO BOX 640, ELEPHANT BUTTE, NM 87935-0640
PO BOX 641, ELEPHANT BUTTE, NM 87935-0641
PO BOX 642, ELEPHANT BUTTE, NM 87935-0642
PO BOX 643, ELEPHANT BUTTE, NM 87935-0643
PO BOX 644, ELEPHANT BUTTE, NM 87935-0644
PO BOX 645, ELEPHANT BUTTE, NM 87935-0645
PO BOX 646, ELEPHANT BUTTE, NM 87935-0646
PO BOX 647, ELEPHANT BUTTE, NM 87935-0647
PO BOX 648, ELEPHANT BUTTE, NM 87935-0648
PO BOX 649, ELEPHANT BUTTE, NM 87935-0649
PO BOX 650, ELEPHANT BUTTE, NM 87935-0650
PO BOX 651, ELEPHANT BUTTE, NM 87935-0651
PO BOX 652, ELEPHANT BUTTE, NM 87935-0652
PO BOX 653, ELEPHANT BUTTE, NM 87935-0653
PO BOX 654, ELEPHANT BUTTE, NM 87935-0654
PO BOX 655, ELEPHANT BUTTE, NM 87935-0655
PO BOX 656, ELEPHANT BUTTE, NM 87935-0656
PO BOX 657, ELEPHANT BUTTE, NM 87935-0657
PO BOX 658, ELEPHANT BUTTE, NM 87935-0658
PO BOX 659, ELEPHANT BUTTE, NM 87935-0659
PO BOX 660, ELEPHANT BUTTE, NM 87935-0660
PO BOX 661, ELEPHANT BUTTE, NM 87935-0661
PO BOX 662, ELEPHANT BUTTE, NM 87935-0662
PO BOX 663, ELEPHANT BUTTE, NM 87935-0663
PO BOX 664, ELEPHANT BUTTE, NM 87935-0664
PO BOX 665, ELEPHANT BUTTE, NM 87935-0665
PO BOX 666, ELEPHANT BUTTE, NM 87935-0666
PO BOX 667, ELEPHANT BUTTE, NM 87935-0667
PO BOX 668, ELEPHANT BUTTE, NM 87935-0668
PO BOX 669, ELEPHANT BUTTE, NM 87935-0669
PO BOX 670, ELEPHANT BUTTE, NM 87935-0670
PO BOX 671, ELEPHANT BUTTE, NM 87935-0671
PO BOX 672, ELEPHANT BUTTE, NM 87935-0672
PO BOX 673, ELEPHANT BUTTE, NM 87935-0673
PO BOX 674, ELEPHANT BUTTE, NM 87935-0674
PO BOX 675, ELEPHANT BUTTE, NM 87935-0675
PO BOX 676, ELEPHANT BUTTE, NM 87935-0676
PO BOX 677, ELEPHANT BUTTE, NM 87935-0677
PO BOX 678, ELEPHANT BUTTE, NM 87935-0678
PO BOX 679, ELEPHANT BUTTE, NM 87935-0679
PO BOX 680, ELEPHANT BUTTE, NM 87935-0680
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