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 481, MONTEREY, CA 93942-0481
PO BOX 482, MONTEREY, CA 93942-0482
PO BOX 483, MONTEREY, CA 93942-0483
PO BOX 484, MONTEREY, CA 93942-0484
PO BOX 485, MONTEREY, CA 93942-0485
PO BOX 486, MONTEREY, CA 93942-0486
PO BOX 487, MONTEREY, CA 93942-0487
PO BOX 488, MONTEREY, CA 93942-0488
PO BOX 489, MONTEREY, CA 93942-0489
PO BOX 490, MONTEREY, CA 93942-0490
PO BOX 491, MONTEREY, CA 93942-0491
PO BOX 492, MONTEREY, CA 93942-0492
PO BOX 493, MONTEREY, CA 93942-0493
PO BOX 494, MONTEREY, CA 93942-0494
PO BOX 495, MONTEREY, CA 93942-0495
PO BOX 496, MONTEREY, CA 93942-0496
PO BOX 497, MONTEREY, CA 93942-0497
PO BOX 498, MONTEREY, CA 93942-0498
PO BOX 499, MONTEREY, CA 93942-0499
PO BOX 500, MONTEREY, CA 93942-0500
PO BOX 501, MONTEREY, CA 93942-0501
PO BOX 502, MONTEREY, CA 93942-0502
PO BOX 503, MONTEREY, CA 93942-0503
PO BOX 504, MONTEREY, CA 93942-0504
PO BOX 505, MONTEREY, CA 93942-0505
PO BOX 506, MONTEREY, CA 93942-0506
PO BOX 507, MONTEREY, CA 93942-0507
PO BOX 508, MONTEREY, CA 93942-0508
PO BOX 509, MONTEREY, CA 93942-0509
PO BOX 510, MONTEREY, CA 93942-0510
PO BOX 511, MONTEREY, CA 93942-0511
PO BOX 512, MONTEREY, CA 93942-0512
PO BOX 513, MONTEREY, CA 93942-0513
PO BOX 514, MONTEREY, CA 93942-0514
PO BOX 515, MONTEREY, CA 93942-0515
PO BOX 516, MONTEREY, CA 93942-0516
PO BOX 517, MONTEREY, CA 93942-0517
PO BOX 518, MONTEREY, CA 93942-0518
PO BOX 519, MONTEREY, CA 93942-0519
PO BOX 520, MONTEREY, CA 93942-0520
PO BOX 521, MONTEREY, CA 93942-0521
PO BOX 522, MONTEREY, CA 93942-0522
PO BOX 523, MONTEREY, CA 93942-0523
PO BOX 524, MONTEREY, CA 93942-0524
PO BOX 525, MONTEREY, CA 93942-0525
PO BOX 526, MONTEREY, CA 93942-0526
PO BOX 527, MONTEREY, CA 93942-0527
PO BOX 528, MONTEREY, CA 93942-0528
PO BOX 529, MONTEREY, CA 93942-0529
PO BOX 530, MONTEREY, CA 93942-0530
PO BOX 531, MONTEREY, CA 93942-0531
PO BOX 532, MONTEREY, CA 93942-0532
PO BOX 533, MONTEREY, CA 93942-0533
PO BOX 534, MONTEREY, CA 93942-0534
PO BOX 535, MONTEREY, CA 93942-0535
PO BOX 536, MONTEREY, CA 93942-0536
PO BOX 537, MONTEREY, CA 93942-0537
PO BOX 538, MONTEREY, CA 93942-0538
PO BOX 539, MONTEREY, CA 93942-0539
PO BOX 540, MONTEREY, CA 93942-0540
PO BOX 541, MONTEREY, CA 93942-0541
PO BOX 542, MONTEREY, CA 93942-0542
PO BOX 543, MONTEREY, CA 93942-0543
PO BOX 544, MONTEREY, CA 93942-0544
PO BOX 545, MONTEREY, CA 93942-0545
PO BOX 546, MONTEREY, CA 93942-0546
PO BOX 547, MONTEREY, CA 93942-0547
PO BOX 548, MONTEREY, CA 93942-0548
PO BOX 549, MONTEREY, CA 93942-0549
PO BOX 550, MONTEREY, CA 93942-0550
PO BOX 551, MONTEREY, CA 93942-0551
PO BOX 552, MONTEREY, CA 93942-0552
PO BOX 553, MONTEREY, CA 93942-0553
PO BOX 554, MONTEREY, CA 93942-0554
PO BOX 555, MONTEREY, CA 93942-0555
PO BOX 556, MONTEREY, CA 93942-0556
PO BOX 557, MONTEREY, CA 93942-0557
PO BOX 558, MONTEREY, CA 93942-0558
PO BOX 559, MONTEREY, CA 93942-0559
PO BOX 560, MONTEREY, CA 93942-0560
PO BOX 561, MONTEREY, CA 93942-0561
PO BOX 562, MONTEREY, CA 93942-0562
PO BOX 563, MONTEREY, CA 93942-0563
PO BOX 564, MONTEREY, CA 93942-0564
PO BOX 565, MONTEREY, CA 93942-0565
PO BOX 566, MONTEREY, CA 93942-0566
PO BOX 567, MONTEREY, CA 93942-0567
PO BOX 568, MONTEREY, CA 93942-0568
PO BOX 569, MONTEREY, CA 93942-0569
PO BOX 570, MONTEREY, CA 93942-0570
PO BOX 571, MONTEREY, CA 93942-0571
PO BOX 572, MONTEREY, CA 93942-0572
PO BOX 573, MONTEREY, CA 93942-0573
PO BOX 574, MONTEREY, CA 93942-0574
PO BOX 575, MONTEREY, CA 93942-0575
PO BOX 576, MONTEREY, CA 93942-0576
PO BOX 577, MONTEREY, CA 93942-0577
PO BOX 578, MONTEREY, CA 93942-0578
PO BOX 579, MONTEREY, CA 93942-0579
PO BOX 580, MONTEREY, CA 93942-0580
PO BOX 581, MONTEREY, CA 93942-0581
PO BOX 582, MONTEREY, CA 93942-0582
PO BOX 583, MONTEREY, CA 93942-0583
PO BOX 584, MONTEREY, CA 93942-0584
PO BOX 585, MONTEREY, CA 93942-0585
PO BOX 586, MONTEREY, CA 93942-0586
PO BOX 587, MONTEREY, CA 93942-0587
PO BOX 588, MONTEREY, CA 93942-0588
PO BOX 589, MONTEREY, CA 93942-0589
PO BOX 590, MONTEREY, CA 93942-0590
PO BOX 591, MONTEREY, CA 93942-0591
PO BOX 592, MONTEREY, CA 93942-0592
PO BOX 593, MONTEREY, CA 93942-0593
PO BOX 594, MONTEREY, CA 93942-0594
PO BOX 595, MONTEREY, CA 93942-0595
PO BOX 596, MONTEREY, CA 93942-0596
PO BOX 597, MONTEREY, CA 93942-0597
PO BOX 598, MONTEREY, CA 93942-0598
PO BOX 599, MONTEREY, CA 93942-0599
PO BOX 600, MONTEREY, CA 93942-0600
PO BOX 601, MONTEREY, CA 93942-0601
PO BOX 602, MONTEREY, CA 93942-0602
PO BOX 603, MONTEREY, CA 93942-0603
PO BOX 604, MONTEREY, CA 93942-0604
PO BOX 605, MONTEREY, CA 93942-0605
PO BOX 606, MONTEREY, CA 93942-0606
PO BOX 607, MONTEREY, CA 93942-0607
PO BOX 608, MONTEREY, CA 93942-0608
PO BOX 609, MONTEREY, CA 93942-0609
PO BOX 610, MONTEREY, CA 93942-0610
PO BOX 611, MONTEREY, CA 93942-0611
PO BOX 612, MONTEREY, CA 93942-0612
PO BOX 613, MONTEREY, CA 93942-0613
PO BOX 614, MONTEREY, CA 93942-0614
PO BOX 615, MONTEREY, CA 93942-0615
PO BOX 616, MONTEREY, CA 93942-0616
PO BOX 617, MONTEREY, CA 93942-0617
PO BOX 618, MONTEREY, CA 93942-0618
PO BOX 619, MONTEREY, CA 93942-0619
PO BOX 620, MONTEREY, CA 93942-0620
PO BOX 621, MONTEREY, CA 93942-0621
PO BOX 622, MONTEREY, CA 93942-0622
PO BOX 623, MONTEREY, CA 93942-0623
PO BOX 624, MONTEREY, CA 93942-0624
PO BOX 625, MONTEREY, CA 93942-0625
PO BOX 626, MONTEREY, CA 93942-0626
PO BOX 627, MONTEREY, CA 93942-0627
PO BOX 628, MONTEREY, CA 93942-0628
PO BOX 629, MONTEREY, CA 93942-0629
PO BOX 630, MONTEREY, CA 93942-0630
PO BOX 631, MONTEREY, CA 93942-0631
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