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 601727, CHARLOTTE, NC 28260-1727
PO BOX 601728, CHARLOTTE, NC 28260-1728
PO BOX 601729, CHARLOTTE, NC 28260-1729
PO BOX 601730, CHARLOTTE, NC 28260-1730
PO BOX 601731, CHARLOTTE, NC 28260-1731
PO BOX 601732, CHARLOTTE, NC 28260-1732
PO BOX 601733, CHARLOTTE, NC 28260-1733
PO BOX 601734, CHARLOTTE, NC 28260-1734
PO BOX 601735, CHARLOTTE, NC 28260-1735
PO BOX 601736, CHARLOTTE, NC 28260-1736
PO BOX 601737, CHARLOTTE, NC 28260-1737
PO BOX 601738, CHARLOTTE, NC 28260-1738
PO BOX 601739, CHARLOTTE, NC 28260-1739
PO BOX 601740, CHARLOTTE, NC 28260-1740
PO BOX 601741, CHARLOTTE, NC 28260-1741
PO BOX 601742, CHARLOTTE, NC 28260-1742
PO BOX 601743, CHARLOTTE, NC 28260-1743
PO BOX 601744, CHARLOTTE, NC 28260-1744
PO BOX 601745, CHARLOTTE, NC 28260-1745
PO BOX 601746, CHARLOTTE, NC 28260-1746
PO BOX 601747, CHARLOTTE, NC 28260-1747
PO BOX 601748, CHARLOTTE, NC 28260-1748
PO BOX 601749, CHARLOTTE, NC 28260-1749
PO BOX 601750, CHARLOTTE, NC 28260-1750
PO BOX 601751, CHARLOTTE, NC 28260-1751
PO BOX 601752, CHARLOTTE, NC 28260-1752
PO BOX 601753, CHARLOTTE, NC 28260-1753
PO BOX 601754, CHARLOTTE, NC 28260-1754
PO BOX 601755, CHARLOTTE, NC 28260-1755
PO BOX 601756, CHARLOTTE, NC 28260-1756
PO BOX 601757, CHARLOTTE, NC 28260-1757
PO BOX 601758, CHARLOTTE, NC 28260-1758
PO BOX 601759, CHARLOTTE, NC 28260-1759
PO BOX 601760, CHARLOTTE, NC 28260-1760
PO BOX 601761, CHARLOTTE, NC 28260-1761
PO BOX 601762, CHARLOTTE, NC 28260-1762
PO BOX 601763, CHARLOTTE, NC 28260-1763
PO BOX 601764, CHARLOTTE, NC 28260-1764
PO BOX 601765, CHARLOTTE, NC 28260-1765
PO BOX 601766, CHARLOTTE, NC 28260-1766
PO BOX 601767, CHARLOTTE, NC 28260-1767
PO BOX 601768, CHARLOTTE, NC 28260-1768
PO BOX 601769, CHARLOTTE, NC 28260-1769
PO BOX 601770, CHARLOTTE, NC 28260-1770
PO BOX 601771, CHARLOTTE, NC 28260-1771
PO BOX 601772, CHARLOTTE, NC 28260-1772
PO BOX 601773, CHARLOTTE, NC 28260-1773
PO BOX 601774, CHARLOTTE, NC 28260-1774
PO BOX 601775, CHARLOTTE, NC 28260-1775
PO BOX 601776, CHARLOTTE, NC 28260-1776
PO BOX 601777, CHARLOTTE, NC 28260-1777
PO BOX 601778, CHARLOTTE, NC 28260-1778
PO BOX 601779, CHARLOTTE, NC 28260-1779
PO BOX 601780, CHARLOTTE, NC 28260-1780
PO BOX 601781, CHARLOTTE, NC 28260-1781
PO BOX 601782, CHARLOTTE, NC 28260-1782
PO BOX 601783, CHARLOTTE, NC 28260-1783
PO BOX 601784, CHARLOTTE, NC 28260-1784
PO BOX 601785, CHARLOTTE, NC 28260-1785
PO BOX 601786, CHARLOTTE, NC 28260-1786
PO BOX 601787, CHARLOTTE, NC 28260-1787
PO BOX 601788, CHARLOTTE, NC 28260-1788
PO BOX 601789, CHARLOTTE, NC 28260-1789
PO BOX 601790, CHARLOTTE, NC 28260-1790
PO BOX 601791, CHARLOTTE, NC 28260-1791
PO BOX 601792, CHARLOTTE, NC 28260-1792
PO BOX 601793, CHARLOTTE, NC 28260-1793
PO BOX 601794, CHARLOTTE, NC 28260-1794
PO BOX 601795, CHARLOTTE, NC 28260-1795
PO BOX 601796, CHARLOTTE, NC 28260-1796
PO BOX 601797, CHARLOTTE, NC 28260-1797
PO BOX 601798, CHARLOTTE, NC 28260-1798
PO BOX 601799, CHARLOTTE, NC 28260-1799
PO BOX 601800, CHARLOTTE, NC 28260-1800
PO BOX 601801, CHARLOTTE, NC 28260-1801
PO BOX 601802, CHARLOTTE, NC 28260-1802
PO BOX 601803, CHARLOTTE, NC 28260-1803
PO BOX 601804, CHARLOTTE, NC 28260-1804
PO BOX 601805, CHARLOTTE, NC 28260-1805
PO BOX 601806, CHARLOTTE, NC 28260-1806
PO BOX 601807, CHARLOTTE, NC 28260-1807
PO BOX 601808, CHARLOTTE, NC 28260-1808
PO BOX 601809, CHARLOTTE, NC 28260-1809
PO BOX 601810, CHARLOTTE, NC 28260-1810
PO BOX 601811, CHARLOTTE, NC 28260-1811
PO BOX 601812, CHARLOTTE, NC 28260-1812
PO BOX 601813, CHARLOTTE, NC 28260-1813
PO BOX 601814, CHARLOTTE, NC 28260-1814
PO BOX 601815, CHARLOTTE, NC 28260-1815
PO BOX 601816, CHARLOTTE, NC 28260-1816
PO BOX 601817, CHARLOTTE, NC 28260-1817
PO BOX 601818, CHARLOTTE, NC 28260-1818
PO BOX 601819, CHARLOTTE, NC 28260-1819
PO BOX 601820, CHARLOTTE, NC 28260-1820
PO BOX 601821, CHARLOTTE, NC 28260-1821
PO BOX 601822, CHARLOTTE, NC 28260-1822
PO BOX 601823, CHARLOTTE, NC 28260-1823
PO BOX 601824, CHARLOTTE, NC 28260-1824
PO BOX 601825, CHARLOTTE, NC 28260-1825
PO BOX 601826, CHARLOTTE, NC 28260-1826
PO BOX 601827, CHARLOTTE, NC 28260-1827
PO BOX 601828, CHARLOTTE, NC 28260-1828
PO BOX 601829, CHARLOTTE, NC 28260-1829
PO BOX 601830, CHARLOTTE, NC 28260-1830
PO BOX 601831, CHARLOTTE, NC 28260-1831
PO BOX 601832, CHARLOTTE, NC 28260-1832
PO BOX 601833, CHARLOTTE, NC 28260-1833
PO BOX 601834, CHARLOTTE, NC 28260-1834
PO BOX 601835, CHARLOTTE, NC 28260-1835
PO BOX 601836, CHARLOTTE, NC 28260-1836
PO BOX 601837, CHARLOTTE, NC 28260-1837
PO BOX 601838, CHARLOTTE, NC 28260-1838
PO BOX 601839, CHARLOTTE, NC 28260-1839
PO BOX 601840, CHARLOTTE, NC 28260-1840
PO BOX 601841, CHARLOTTE, NC 28260-1841
PO BOX 601842, CHARLOTTE, NC 28260-1842
PO BOX 601843, CHARLOTTE, NC 28260-1843
PO BOX 601844, CHARLOTTE, NC 28260-1844
PO BOX 601845, CHARLOTTE, NC 28260-1845
PO BOX 601846, CHARLOTTE, NC 28260-1846
PO BOX 601847, CHARLOTTE, NC 28260-1847
PO BOX 601848, CHARLOTTE, NC 28260-1848
PO BOX 601849, CHARLOTTE, NC 28260-1849
PO BOX 601850, CHARLOTTE, NC 28260-1850
PO BOX 601851, CHARLOTTE, NC 28260-1851
PO BOX 601852, CHARLOTTE, NC 28260-1852
PO BOX 601853, CHARLOTTE, NC 28260-1853
PO BOX 601854, CHARLOTTE, NC 28260-1854
PO BOX 601855, CHARLOTTE, NC 28260-1855
PO BOX 601856, CHARLOTTE, NC 28260-1856
PO BOX 601857, CHARLOTTE, NC 28260-1857
PO BOX 601858, CHARLOTTE, NC 28260-1858
PO BOX 601859, CHARLOTTE, NC 28260-1859
PO BOX 601860, CHARLOTTE, NC 28260-1860
PO BOX 601861, CHARLOTTE, NC 28260-1861
PO BOX 601862, CHARLOTTE, NC 28260-1862
PO BOX 601863, CHARLOTTE, NC 28260-1863
PO BOX 601864, CHARLOTTE, NC 28260-1864
PO BOX 601865, CHARLOTTE, NC 28260-1865
PO BOX 601866, CHARLOTTE, NC 28260-1866
PO BOX 601867, CHARLOTTE, NC 28260-1867
PO BOX 601868, CHARLOTTE, NC 28260-1868
PO BOX 601869, CHARLOTTE, NC 28260-1869
PO BOX 601870, CHARLOTTE, NC 28260-1870
PO BOX 601871, CHARLOTTE, NC 28260-1871
PO BOX 601872, CHARLOTTE, NC 28260-1872
PO BOX 601873, CHARLOTTE, NC 28260-1873
PO BOX 601874, CHARLOTTE, NC 28260-1874
PO BOX 601875, CHARLOTTE, NC 28260-1875
PO BOX 601876, CHARLOTTE, NC 28260-1876
PO BOX 601877, CHARLOTTE, NC 28260-1877
PO BOX 601878, CHARLOTTE, NC 28260-1878
PO BOX 601879, CHARLOTTE, NC 28260-1879
PO BOX 601880, CHARLOTTE, NC 28260-1880
PO BOX 601881, CHARLOTTE, NC 28260-1881
PO BOX 601882, CHARLOTTE, NC 28260-1882
PO BOX 601883, CHARLOTTE, NC 28260-1883
PO BOX 601884, CHARLOTTE, NC 28260-1884
PO BOX 601885, CHARLOTTE, NC 28260-1885
PO BOX 601886, CHARLOTTE, NC 28260-1886
PO BOX 601887, CHARLOTTE, NC 28260-1887
PO BOX 601888, CHARLOTTE, NC 28260-1888
PO BOX 601889, CHARLOTTE, NC 28260-1889
PO BOX 601890, CHARLOTTE, NC 28260-1890
PO BOX 601891, CHARLOTTE, NC 28260-1891
PO BOX 601892, CHARLOTTE, NC 28260-1892
PO BOX 601893, CHARLOTTE, NC 28260-1893
PO BOX 601894, CHARLOTTE, NC 28260-1894
PO BOX 601895, CHARLOTTE, NC 28260-1895
PO BOX 601896, CHARLOTTE, NC 28260-1896
PO BOX 601897, CHARLOTTE, NC 28260-1897
PO BOX 601898, CHARLOTTE, NC 28260-1898
PO BOX 601899, CHARLOTTE, NC 28260-1899
PO BOX 601900, CHARLOTTE, NC 28260-1900
PO BOX 601901, CHARLOTTE, NC 28260-1901
PO BOX 601902, CHARLOTTE, NC 28260-1902
PO BOX 601903, CHARLOTTE, NC 28260-1903
PO BOX 601904, CHARLOTTE, NC 28260-1904
PO BOX 601905, CHARLOTTE, NC 28260-1905
PO BOX 601906, CHARLOTTE, NC 28260-1906
PO BOX 601907, CHARLOTTE, NC 28260-1907
PO BOX 601908, CHARLOTTE, NC 28260-1908
PO BOX 601909, CHARLOTTE, NC 28260-1909
PO BOX 601910, CHARLOTTE, NC 28260-1910
PO BOX 601911, CHARLOTTE, NC 28260-1911
PO BOX 601912, CHARLOTTE, NC 28260-1912
PO BOX 601913, CHARLOTTE, NC 28260-1913
PO BOX 601914, CHARLOTTE, NC 28260-1914
PO BOX 601915, CHARLOTTE, NC 28260-1915
PO BOX 601916, CHARLOTTE, NC 28260-1916
PO BOX 601917, CHARLOTTE, NC 28260-1917
PO BOX 601918, CHARLOTTE, NC 28260-1918
PO BOX 601919, CHARLOTTE, NC 28260-1919
PO BOX 601920, CHARLOTTE, NC 28260-1920
PO BOX 601921, CHARLOTTE, NC 28260-1921
PO BOX 601922, CHARLOTTE, NC 28260-1922
PO BOX 601923, CHARLOTTE, NC 28260-1923
PO BOX 601924, CHARLOTTE, NC 28260-1924
PO BOX 601925, CHARLOTTE, NC 28260-1925
PO BOX 601926, CHARLOTTE, NC 28260-1926
PO BOX 601927, CHARLOTTE, NC 28260-1927