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 1581, SHALLOTTE, NC 28459-1581
PO BOX 1582, SHALLOTTE, NC 28459-1582
PO BOX 1583, SHALLOTTE, NC 28459-1583
PO BOX 1584, SHALLOTTE, NC 28459-1584
PO BOX 1585, SHALLOTTE, NC 28459-1585
PO BOX 1586, SHALLOTTE, NC 28459-1586
PO BOX 1587, SHALLOTTE, NC 28459-1587
PO BOX 1588, SHALLOTTE, NC 28459-1588
PO BOX 1589, SHALLOTTE, NC 28459-1589
PO BOX 1590, SHALLOTTE, NC 28459-1590
PO BOX 1591, SHALLOTTE, NC 28459-1591
PO BOX 1592, SHALLOTTE, NC 28459-1592
PO BOX 1593, SHALLOTTE, NC 28459-1593
PO BOX 1594, SHALLOTTE, NC 28459-1594
PO BOX 1595, SHALLOTTE, NC 28459-1595
PO BOX 1596, SHALLOTTE, NC 28459-1596
PO BOX 1597, SHALLOTTE, NC 28459-1597
PO BOX 1598, SHALLOTTE, NC 28459-1598
PO BOX 1599, SHALLOTTE, NC 28459-1599
PO BOX 1600, SHALLOTTE, NC 28459-1600
PO BOX 1601, SHALLOTTE, NC 28459-1601
PO BOX 1602, SHALLOTTE, NC 28459-1602
PO BOX 1603, SHALLOTTE, NC 28459-1603
PO BOX 1604, SHALLOTTE, NC 28459-1604
PO BOX 1605, SHALLOTTE, NC 28459-1605
PO BOX 1606, SHALLOTTE, NC 28459-1606
PO BOX 1607, SHALLOTTE, NC 28459-1607
PO BOX 1608, SHALLOTTE, NC 28459-1608
PO BOX 1609, SHALLOTTE, NC 28459-1609
PO BOX 1610, SHALLOTTE, NC 28459-1610
PO BOX 1611, SHALLOTTE, NC 28459-1611
PO BOX 1612, SHALLOTTE, NC 28459-1612
PO BOX 1613, SHALLOTTE, NC 28459-1613
PO BOX 1614, SHALLOTTE, NC 28459-1614
PO BOX 1615, SHALLOTTE, NC 28459-1615
PO BOX 1616, SHALLOTTE, NC 28459-1616
PO BOX 1617, SHALLOTTE, NC 28459-1617
PO BOX 1618, SHALLOTTE, NC 28459-1618
PO BOX 1619, SHALLOTTE, NC 28459-1619
PO BOX 1620, SHALLOTTE, NC 28459-1620
PO BOX 1621, SHALLOTTE, NC 28459-1621
PO BOX 1622, SHALLOTTE, NC 28459-1622
PO BOX 1623, SHALLOTTE, NC 28459-1623
PO BOX 1624, SHALLOTTE, NC 28459-1624
PO BOX 1625, SHALLOTTE, NC 28459-1625
PO BOX 1626, SHALLOTTE, NC 28459-1626
PO BOX 1627, SHALLOTTE, NC 28459-1627
PO BOX 1628, SHALLOTTE, NC 28459-1628
PO BOX 1629, SHALLOTTE, NC 28459-1629
PO BOX 1630, SHALLOTTE, NC 28459-1630
PO BOX 1631, SHALLOTTE, NC 28459-1631
PO BOX 1632, SHALLOTTE, NC 28459-1632
PO BOX 1633, SHALLOTTE, NC 28459-1633
PO BOX 1634, SHALLOTTE, NC 28459-1634
PO BOX 1635, SHALLOTTE, NC 28459-1635
PO BOX 1636, SHALLOTTE, NC 28459-1636
PO BOX 1637, SHALLOTTE, NC 28459-1637
PO BOX 1638, SHALLOTTE, NC 28459-1638
PO BOX 1639, SHALLOTTE, NC 28459-1639
PO BOX 1640, SHALLOTTE, NC 28459-1640
PO BOX 1641, SHALLOTTE, NC 28459-1641
PO BOX 1642, SHALLOTTE, NC 28459-1642
PO BOX 1643, SHALLOTTE, NC 28459-1643
PO BOX 1644, SHALLOTTE, NC 28459-1644
PO BOX 1645, SHALLOTTE, NC 28459-1645
PO BOX 1646, SHALLOTTE, NC 28459-1646
PO BOX 1647, SHALLOTTE, NC 28459-1647
PO BOX 1648, SHALLOTTE, NC 28459-1648
PO BOX 1649, SHALLOTTE, NC 28459-1649
PO BOX 1650, SHALLOTTE, NC 28459-1650
PO BOX 1651, SHALLOTTE, NC 28459-1651
PO BOX 1652, SHALLOTTE, NC 28459-1652
PO BOX 1653, SHALLOTTE, NC 28459-1653
PO BOX 1654, SHALLOTTE, NC 28459-1654
PO BOX 1655, SHALLOTTE, NC 28459-1655
PO BOX 1656, SHALLOTTE, NC 28459-1656
PO BOX 1657, SHALLOTTE, NC 28459-1657
PO BOX 1658, SHALLOTTE, NC 28459-1658
PO BOX 1659, SHALLOTTE, NC 28459-1659
PO BOX 1660, SHALLOTTE, NC 28459-1660
PO BOX 1661, SHALLOTTE, NC 28459-1661
PO BOX 1662, SHALLOTTE, NC 28459-1662
PO BOX 1663, SHALLOTTE, NC 28459-1663
PO BOX 1664, SHALLOTTE, NC 28459-1664
PO BOX 1665, SHALLOTTE, NC 28459-1665
PO BOX 1666, SHALLOTTE, NC 28459-1666
PO BOX 1667, SHALLOTTE, NC 28459-1667
PO BOX 1668, SHALLOTTE, NC 28459-1668
PO BOX 1669, SHALLOTTE, NC 28459-1669
PO BOX 1670, SHALLOTTE, NC 28459-1670
PO BOX 1671, SHALLOTTE, NC 28459-1671
PO BOX 1672, SHALLOTTE, NC 28459-1672
PO BOX 1673, SHALLOTTE, NC 28459-1673
PO BOX 1674, SHALLOTTE, NC 28459-1674
PO BOX 1675, SHALLOTTE, NC 28459-1675
PO BOX 1676, SHALLOTTE, NC 28459-1676
PO BOX 1677, SHALLOTTE, NC 28459-1677
PO BOX 1678, SHALLOTTE, NC 28459-1678
PO BOX 1679, SHALLOTTE, NC 28459-1679
PO BOX 1680, SHALLOTTE, NC 28459-1680
PO BOX 1681, SHALLOTTE, NC 28459-1681
PO BOX 1682, SHALLOTTE, NC 28459-1682
PO BOX 1683, SHALLOTTE, NC 28459-1683
PO BOX 1684, SHALLOTTE, NC 28459-1684
PO BOX 1685, SHALLOTTE, NC 28459-1685
PO BOX 1686, SHALLOTTE, NC 28459-1686
PO BOX 1687, SHALLOTTE, NC 28459-1687
PO BOX 1688, SHALLOTTE, NC 28459-1688
PO BOX 1689, SHALLOTTE, NC 28459-1689
PO BOX 1690, SHALLOTTE, NC 28459-1690
PO BOX 1691, SHALLOTTE, NC 28459-1691
PO BOX 1692, SHALLOTTE, NC 28459-1692
PO BOX 1693, SHALLOTTE, NC 28459-1693
PO BOX 1694, SHALLOTTE, NC 28459-1694
PO BOX 1695, SHALLOTTE, NC 28459-1695
PO BOX 1696, SHALLOTTE, NC 28459-1696
PO BOX 1697, SHALLOTTE, NC 28459-1697
PO BOX 1698, SHALLOTTE, NC 28459-1698
PO BOX 1699, SHALLOTTE, NC 28459-1699
PO BOX 1700, SHALLOTTE, NC 28459-1700
PO BOX 1701, SHALLOTTE, NC 28459-1701
PO BOX 1702, SHALLOTTE, NC 28459-1702
PO BOX 1703, SHALLOTTE, NC 28459-1703
PO BOX 1704, SHALLOTTE, NC 28459-1704
PO BOX 1705, SHALLOTTE, NC 28459-1705
PO BOX 1706, SHALLOTTE, NC 28459-1706
PO BOX 1707, SHALLOTTE, NC 28459-1707
PO BOX 1708, SHALLOTTE, NC 28459-1708
PO BOX 1709, SHALLOTTE, NC 28459-1709
PO BOX 1710, SHALLOTTE, NC 28459-1710
PO BOX 1711, SHALLOTTE, NC 28459-1711
PO BOX 1712, SHALLOTTE, NC 28459-1712
PO BOX 1713, SHALLOTTE, NC 28459-1713
PO BOX 1714, SHALLOTTE, NC 28459-1714
PO BOX 1715, SHALLOTTE, NC 28459-1715
PO BOX 1716, SHALLOTTE, NC 28459-1716
PO BOX 1717, SHALLOTTE, NC 28459-1717
PO BOX 1718, SHALLOTTE, NC 28459-1718
PO BOX 1719, SHALLOTTE, NC 28459-1719
PO BOX 1720, SHALLOTTE, NC 28459-1720
PO BOX 1721, SHALLOTTE, NC 28459-1721
PO BOX 1722, SHALLOTTE, NC 28459-1722
PO BOX 1723, SHALLOTTE, NC 28459-1723
PO BOX 1724, SHALLOTTE, NC 28459-1724
PO BOX 1725, SHALLOTTE, NC 28459-1725
PO BOX 1726, SHALLOTTE, NC 28459-1726
PO BOX 1727, SHALLOTTE, NC 28459-1727
PO BOX 1728, SHALLOTTE, NC 28459-1728
PO BOX 1729, SHALLOTTE, NC 28459-1729
PO BOX 1730, SHALLOTTE, NC 28459-1730
PO BOX 1731, SHALLOTTE, NC 28459-1731
PO BOX 1732, SHALLOTTE, NC 28459-1732
PO BOX 1733, SHALLOTTE, NC 28459-1733
PO BOX 1734, SHALLOTTE, NC 28459-1734
PO BOX 1735, SHALLOTTE, NC 28459-1735
PO BOX 1736, SHALLOTTE, NC 28459-1736
PO BOX 1737, SHALLOTTE, NC 28459-1737
PO BOX 1738, SHALLOTTE, NC 28459-1738
PO BOX 1739, SHALLOTTE, NC 28459-1739
PO BOX 1740, SHALLOTTE, NC 28459-1740
PO BOX 1741, SHALLOTTE, NC 28459-1741
PO BOX 1742, SHALLOTTE, NC 28459-1742
PO BOX 1743, SHALLOTTE, NC 28459-1743
PO BOX 1744, SHALLOTTE, NC 28459-1744
PO BOX 1745, SHALLOTTE, NC 28459-1745
PO BOX 1746, SHALLOTTE, NC 28459-1746
PO BOX 1747, SHALLOTTE, NC 28459-1747
PO BOX 1748, SHALLOTTE, NC 28459-1748
PO BOX 1749, SHALLOTTE, NC 28459-1749
PO BOX 1750, SHALLOTTE, NC 28459-1750
PO BOX 1751, SHALLOTTE, NC 28459-1751
PO BOX 1752, SHALLOTTE, NC 28459-1752
PO BOX 1753, SHALLOTTE, NC 28459-1753
PO BOX 1754, SHALLOTTE, NC 28459-1754
PO BOX 1755, SHALLOTTE, NC 28459-1755
PO BOX 1756, SHALLOTTE, NC 28459-1756
PO BOX 1757, SHALLOTTE, NC 28459-1757
PO BOX 1758, SHALLOTTE, NC 28459-1758
PO BOX 1759, SHALLOTTE, NC 28459-1759
PO BOX 1760, SHALLOTTE, NC 28459-1760
PO BOX 1761, SHALLOTTE, NC 28459-1761
PO BOX 1762, SHALLOTTE, NC 28459-1762
PO BOX 1763, SHALLOTTE, NC 28459-1763
PO BOX 1764, SHALLOTTE, NC 28459-1764
PO BOX 1765, SHALLOTTE, NC 28459-1765
PO BOX 1766, SHALLOTTE, NC 28459-1766
PO BOX 1767, SHALLOTTE, NC 28459-1767
PO BOX 1768, SHALLOTTE, NC 28459-1768
PO BOX 1769, SHALLOTTE, NC 28459-1769
PO BOX 1770, SHALLOTTE, NC 28459-1770
PO BOX 1771, SHALLOTTE, NC 28459-1771
PO BOX 1772, SHALLOTTE, NC 28459-1772
PO BOX 1773, SHALLOTTE, NC 28459-1773
PO BOX 1774, SHALLOTTE, NC 28459-1774
PO BOX 1775, SHALLOTTE, NC 28459-1775
PO BOX 1776, SHALLOTTE, NC 28459-1776
PO BOX 1777, SHALLOTTE, NC 28459-1777
PO BOX 1778, SHALLOTTE, NC 28459-1778
PO BOX 1779, SHALLOTTE, NC 28459-1779
PO BOX 1780, SHALLOTTE, NC 28459-1780
PO BOX 1781, SHALLOTTE, NC 28459-1781
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