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 1681, OLD FORT, NC 28762-1681
PO BOX 1682, OLD FORT, NC 28762-1682
PO BOX 1683, OLD FORT, NC 28762-1683
PO BOX 1684, OLD FORT, NC 28762-1684
PO BOX 1685, OLD FORT, NC 28762-1685
PO BOX 1686, OLD FORT, NC 28762-1686
PO BOX 1687, OLD FORT, NC 28762-1687
PO BOX 1688, OLD FORT, NC 28762-1688
PO BOX 1689, OLD FORT, NC 28762-1689
PO BOX 1690, OLD FORT, NC 28762-1690
PO BOX 1691, OLD FORT, NC 28762-1691
PO BOX 1692, OLD FORT, NC 28762-1692
PO BOX 1693, OLD FORT, NC 28762-1693
PO BOX 1694, OLD FORT, NC 28762-1694
PO BOX 1695, OLD FORT, NC 28762-1695
PO BOX 1696, OLD FORT, NC 28762-1696
PO BOX 1697, OLD FORT, NC 28762-1697
PO BOX 1698, OLD FORT, NC 28762-1698
PO BOX 1699, OLD FORT, NC 28762-1699
PO BOX 1700, OLD FORT, NC 28762-1700
PO BOX 1701, OLD FORT, NC 28762-1701
PO BOX 1702, OLD FORT, NC 28762-1702
PO BOX 1703, OLD FORT, NC 28762-1703
PO BOX 1704, OLD FORT, NC 28762-1704
PO BOX 1705, OLD FORT, NC 28762-1705
PO BOX 1706, OLD FORT, NC 28762-1706
PO BOX 1707, OLD FORT, NC 28762-1707
PO BOX 1708, OLD FORT, NC 28762-1708
PO BOX 1709, OLD FORT, NC 28762-1709
PO BOX 1710, OLD FORT, NC 28762-1710
PO BOX 1711, OLD FORT, NC 28762-1711
PO BOX 1712, OLD FORT, NC 28762-1712
PO BOX 1713, OLD FORT, NC 28762-1713
PO BOX 1714, OLD FORT, NC 28762-1714
PO BOX 1715, OLD FORT, NC 28762-1715
PO BOX 1716, OLD FORT, NC 28762-1716
PO BOX 1717, OLD FORT, NC 28762-1717
PO BOX 1718, OLD FORT, NC 28762-1718
PO BOX 1719, OLD FORT, NC 28762-1719
PO BOX 1720, OLD FORT, NC 28762-1720
PO BOX 1721, OLD FORT, NC 28762-1721
PO BOX 1722, OLD FORT, NC 28762-1722
PO BOX 1723, OLD FORT, NC 28762-1723
PO BOX 1724, OLD FORT, NC 28762-1724
PO BOX 1725, OLD FORT, NC 28762-1725
PO BOX 1726, OLD FORT, NC 28762-1726
PO BOX 1727, OLD FORT, NC 28762-1727
PO BOX 1728, OLD FORT, NC 28762-1728
PO BOX 1729, OLD FORT, NC 28762-1729
PO BOX 1730, OLD FORT, NC 28762-1730
PO BOX 1731, OLD FORT, NC 28762-1731
PO BOX 1732, OLD FORT, NC 28762-1732
PO BOX 1733, OLD FORT, NC 28762-1733
PO BOX 1734, OLD FORT, NC 28762-1734
PO BOX 1735, OLD FORT, NC 28762-1735
PO BOX 1736, OLD FORT, NC 28762-1736
PO BOX 1737, OLD FORT, NC 28762-1737
PO BOX 1738, OLD FORT, NC 28762-1738
PO BOX 1739, OLD FORT, NC 28762-1739
PO BOX 1740, OLD FORT, NC 28762-1740
PO BOX 1741, OLD FORT, NC 28762-1741
PO BOX 1742, OLD FORT, NC 28762-1742
PO BOX 1743, OLD FORT, NC 28762-1743
PO BOX 1744, OLD FORT, NC 28762-1744
PO BOX 1745, OLD FORT, NC 28762-1745
PO BOX 1746, OLD FORT, NC 28762-1746
PO BOX 1747, OLD FORT, NC 28762-1747
PO BOX 1748, OLD FORT, NC 28762-1748
PO BOX 1749, OLD FORT, NC 28762-1749
PO BOX 1750, OLD FORT, NC 28762-1750
PO BOX 1751, OLD FORT, NC 28762-1751
PO BOX 1752, OLD FORT, NC 28762-1752
PO BOX 1753, OLD FORT, NC 28762-1753
PO BOX 1754, OLD FORT, NC 28762-1754
PO BOX 1755, OLD FORT, NC 28762-1755
PO BOX 1756, OLD FORT, NC 28762-1756
PO BOX 1757, OLD FORT, NC 28762-1757
PO BOX 1758, OLD FORT, NC 28762-1758
PO BOX 1759, OLD FORT, NC 28762-1759
PO BOX 1760, OLD FORT, NC 28762-1760
PO BOX 1761, OLD FORT, NC 28762-1761
PO BOX 1762, OLD FORT, NC 28762-1762
PO BOX 1763, OLD FORT, NC 28762-1763
PO BOX 1764, OLD FORT, NC 28762-1764
PO BOX 1765, OLD FORT, NC 28762-1765
PO BOX 1766, OLD FORT, NC 28762-1766
PO BOX 1767, OLD FORT, NC 28762-1767
PO BOX 1768, OLD FORT, NC 28762-1768
PO BOX 1769, OLD FORT, NC 28762-1769
PO BOX 1770, OLD FORT, NC 28762-1770
PO BOX 1771, OLD FORT, NC 28762-1771
PO BOX 1772, OLD FORT, NC 28762-1772
PO BOX 1773, OLD FORT, NC 28762-1773
PO BOX 1774, OLD FORT, NC 28762-1774
PO BOX 1775, OLD FORT, NC 28762-1775
PO BOX 1776, OLD FORT, NC 28762-1776
PO BOX 1777, OLD FORT, NC 28762-1777
PO BOX 1778, OLD FORT, NC 28762-1778
PO BOX 1779, OLD FORT, NC 28762-1779
PO BOX 1780, OLD FORT, NC 28762-1780
PO BOX 1781, OLD FORT, NC 28762-1781
PO BOX 1782, OLD FORT, NC 28762-1782
PO BOX 1783, OLD FORT, NC 28762-1783
PO BOX 1784, OLD FORT, NC 28762-1784
PO BOX 1785, OLD FORT, NC 28762-1785
PO BOX 1786, OLD FORT, NC 28762-1786
PO BOX 1787, OLD FORT, NC 28762-1787
PO BOX 1788, OLD FORT, NC 28762-1788
PO BOX 1789, OLD FORT, NC 28762-1789
PO BOX 1790, OLD FORT, NC 28762-1790
PO BOX 1791, OLD FORT, NC 28762-1791
PO BOX 1792, OLD FORT, NC 28762-1792
PO BOX 1793, OLD FORT, NC 28762-1793
PO BOX 1794, OLD FORT, NC 28762-1794
PO BOX 1795, OLD FORT, NC 28762-1795
PO BOX 1796, OLD FORT, NC 28762-1796
PO BOX 1797, OLD FORT, NC 28762-1797
PO BOX 1798, OLD FORT, NC 28762-1798
PO BOX 1799, OLD FORT, NC 28762-1799
PO BOX 1800, OLD FORT, NC 28762-1800
PO BOX 1801, OLD FORT, NC 28762-1801
PO BOX 1802, OLD FORT, NC 28762-1802
PO BOX 1803, OLD FORT, NC 28762-1803
PO BOX 1804, OLD FORT, NC 28762-1804
PO BOX 1805, OLD FORT, NC 28762-1805
PO BOX 1806, OLD FORT, NC 28762-1806
PO BOX 1807, OLD FORT, NC 28762-1807
PO BOX 1808, OLD FORT, NC 28762-1808
PO BOX 1809, OLD FORT, NC 28762-1809
PO BOX 1810, OLD FORT, NC 28762-1810
PO BOX 1811, OLD FORT, NC 28762-1811
PO BOX 1812, OLD FORT, NC 28762-1812
PO BOX 1813, OLD FORT, NC 28762-1813
PO BOX 1814, OLD FORT, NC 28762-1814
PO BOX 1815, OLD FORT, NC 28762-1815
PO BOX 1816, OLD FORT, NC 28762-1816
PO BOX 1817, OLD FORT, NC 28762-1817
PO BOX 1818, OLD FORT, NC 28762-1818
PO BOX 1819, OLD FORT, NC 28762-1819
PO BOX 1820, OLD FORT, NC 28762-1820
PO BOX 1821, OLD FORT, NC 28762-1821
PO BOX 1822, OLD FORT, NC 28762-1822
PO BOX 1823, OLD FORT, NC 28762-1823
PO BOX 1824, OLD FORT, NC 28762-1824
PO BOX 1825, OLD FORT, NC 28762-1825
PO BOX 1826, OLD FORT, NC 28762-1826
PO BOX 1827, OLD FORT, NC 28762-1827
PO BOX 1828, OLD FORT, NC 28762-1828
PO BOX 1829, OLD FORT, NC 28762-1829
PO BOX 1830, OLD FORT, NC 28762-1830
PO BOX 1831, OLD FORT, NC 28762-1831
PO BOX 1832, OLD FORT, NC 28762-1832
PO BOX 1833, OLD FORT, NC 28762-1833
PO BOX 1834, OLD FORT, NC 28762-1834
PO BOX 1835, OLD FORT, NC 28762-1835
PO BOX 1836, OLD FORT, NC 28762-1836
PO BOX 1837, OLD FORT, NC 28762-1837
PO BOX 1838, OLD FORT, NC 28762-1838
PO BOX 1839, OLD FORT, NC 28762-1839
PO BOX 1840, OLD FORT, NC 28762-1840
PO BOX 1841, OLD FORT, NC 28762-1841
PO BOX 1842, OLD FORT, NC 28762-1842
PO BOX 1843, OLD FORT, NC 28762-1843
PO BOX 1844, OLD FORT, NC 28762-1844
PO BOX 1845, OLD FORT, NC 28762-1845
PO BOX 1846, OLD FORT, NC 28762-1846
PO BOX 1847, OLD FORT, NC 28762-1847
PO BOX 1848, OLD FORT, NC 28762-1848
PO BOX 1849, OLD FORT, NC 28762-1849
PO BOX 1850, OLD FORT, NC 28762-1850
PO BOX 1851, OLD FORT, NC 28762-1851
PO BOX 1852, OLD FORT, NC 28762-1852
PO BOX 1853, OLD FORT, NC 28762-1853
PO BOX 1854, OLD FORT, NC 28762-1854
PO BOX 1855, OLD FORT, NC 28762-1855
PO BOX 1856, OLD FORT, NC 28762-1856
PO BOX 1857, OLD FORT, NC 28762-1857
PO BOX 1858, OLD FORT, NC 28762-1858
PO BOX 1859, OLD FORT, NC 28762-1859
PO BOX 1860, OLD FORT, NC 28762-1860
PO BOX 1861, OLD FORT, NC 28762-1861
PO BOX 1862, OLD FORT, NC 28762-1862
PO BOX 1863, OLD FORT, NC 28762-1863
PO BOX 1864, OLD FORT, NC 28762-1864
PO BOX 1865, OLD FORT, NC 28762-1865
PO BOX 1866, OLD FORT, NC 28762-1866
PO BOX 1867, OLD FORT, NC 28762-1867
PO BOX 1868, OLD FORT, NC 28762-1868
PO BOX 1869, OLD FORT, NC 28762-1869
PO BOX 1870, OLD FORT, NC 28762-1870
PO BOX 1871, OLD FORT, NC 28762-1871
PO BOX 1872, OLD FORT, NC 28762-1872
PO BOX 1873, OLD FORT, NC 28762-1873
PO BOX 1874, OLD FORT, NC 28762-1874
PO BOX 1875, OLD FORT, NC 28762-1875
PO BOX 1876, OLD FORT, NC 28762-1876
PO BOX 1877, OLD FORT, NC 28762-1877
PO BOX 1878, OLD FORT, NC 28762-1878
PO BOX 1879, OLD FORT, NC 28762-1879
PO BOX 1880, OLD FORT, NC 28762-1880
PO BOX 1881, OLD FORT, NC 28762-1881
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