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 1741, CHICAGO HEIGHTS, IL 60412-1741
PO BOX 1742, CHICAGO HEIGHTS, IL 60412-1742
PO BOX 1743, CHICAGO HEIGHTS, IL 60412-1743
PO BOX 1744, CHICAGO HEIGHTS, IL 60412-1744
PO BOX 1745, CHICAGO HEIGHTS, IL 60412-1745
PO BOX 1746, CHICAGO HEIGHTS, IL 60412-1746
PO BOX 1747, CHICAGO HEIGHTS, IL 60412-1747
PO BOX 1748, CHICAGO HEIGHTS, IL 60412-1748
PO BOX 1749, CHICAGO HEIGHTS, IL 60412-1749
PO BOX 1750, CHICAGO HEIGHTS, IL 60412-1750
PO BOX 1751, CHICAGO HEIGHTS, IL 60412-1751
PO BOX 1752, CHICAGO HEIGHTS, IL 60412-1752
PO BOX 1753, CHICAGO HEIGHTS, IL 60412-1753
PO BOX 1754, CHICAGO HEIGHTS, IL 60412-1754
PO BOX 1755, CHICAGO HEIGHTS, IL 60412-1755
PO BOX 1756, CHICAGO HEIGHTS, IL 60412-1756
PO BOX 1757, CHICAGO HEIGHTS, IL 60412-1757
PO BOX 1758, CHICAGO HEIGHTS, IL 60412-1758
PO BOX 1759, CHICAGO HEIGHTS, IL 60412-1759
PO BOX 1760, CHICAGO HEIGHTS, IL 60412-1760
PO BOX 1761, CHICAGO HEIGHTS, IL 60412-1761
PO BOX 1762, CHICAGO HEIGHTS, IL 60412-1762
PO BOX 1763, CHICAGO HEIGHTS, IL 60412-1763
PO BOX 1764, CHICAGO HEIGHTS, IL 60412-1764
PO BOX 1765, CHICAGO HEIGHTS, IL 60412-1765
PO BOX 1766, CHICAGO HEIGHTS, IL 60412-1766
PO BOX 1767, CHICAGO HEIGHTS, IL 60412-1767
PO BOX 1768, CHICAGO HEIGHTS, IL 60412-1768
PO BOX 1769, CHICAGO HEIGHTS, IL 60412-1769
PO BOX 1770, CHICAGO HEIGHTS, IL 60412-1770
PO BOX 1771, CHICAGO HEIGHTS, IL 60412-1771
PO BOX 1772, CHICAGO HEIGHTS, IL 60412-1772
PO BOX 1773, CHICAGO HEIGHTS, IL 60412-1773
PO BOX 1774, CHICAGO HEIGHTS, IL 60412-1774
PO BOX 1775, CHICAGO HEIGHTS, IL 60412-1775
PO BOX 1776, CHICAGO HEIGHTS, IL 60412-1776
PO BOX 1777, CHICAGO HEIGHTS, IL 60412-1777
PO BOX 1778, CHICAGO HEIGHTS, IL 60412-1778
PO BOX 1779, CHICAGO HEIGHTS, IL 60412-1779
PO BOX 1780, CHICAGO HEIGHTS, IL 60412-1780
PO BOX 1781, CHICAGO HEIGHTS, IL 60412-1781
PO BOX 1782, CHICAGO HEIGHTS, IL 60412-1782
PO BOX 1783, CHICAGO HEIGHTS, IL 60412-1783
PO BOX 1784, CHICAGO HEIGHTS, IL 60412-1784
PO BOX 1785, CHICAGO HEIGHTS, IL 60412-1785
PO BOX 1786, CHICAGO HEIGHTS, IL 60412-1786
PO BOX 1787, CHICAGO HEIGHTS, IL 60412-1787
PO BOX 1788, CHICAGO HEIGHTS, IL 60412-1788
PO BOX 1789, CHICAGO HEIGHTS, IL 60412-1789
PO BOX 1790, CHICAGO HEIGHTS, IL 60412-1790
PO BOX 1791, CHICAGO HEIGHTS, IL 60412-1791
PO BOX 1792, CHICAGO HEIGHTS, IL 60412-1792
PO BOX 1793, CHICAGO HEIGHTS, IL 60412-1793
PO BOX 1794, CHICAGO HEIGHTS, IL 60412-1794
PO BOX 1795, CHICAGO HEIGHTS, IL 60412-1795
PO BOX 1796, CHICAGO HEIGHTS, IL 60412-1796
PO BOX 1797, CHICAGO HEIGHTS, IL 60412-1797
PO BOX 1798, CHICAGO HEIGHTS, IL 60412-1798
PO BOX 1799, CHICAGO HEIGHTS, IL 60412-1799
PO BOX 1800, CHICAGO HEIGHTS, IL 60412-1800
PO BOX 1801, CHICAGO HEIGHTS, IL 60412-1801
PO BOX 1802, CHICAGO HEIGHTS, IL 60412-1802
PO BOX 1803, CHICAGO HEIGHTS, IL 60412-1803
PO BOX 1804, CHICAGO HEIGHTS, IL 60412-1804
PO BOX 1805, CHICAGO HEIGHTS, IL 60412-1805
PO BOX 1806, CHICAGO HEIGHTS, IL 60412-1806
PO BOX 1807, CHICAGO HEIGHTS, IL 60412-1807
PO BOX 1808, CHICAGO HEIGHTS, IL 60412-1808
PO BOX 1809, CHICAGO HEIGHTS, IL 60412-1809
PO BOX 1810, CHICAGO HEIGHTS, IL 60412-1810
PO BOX 1811, CHICAGO HEIGHTS, IL 60412-1811
PO BOX 1812, CHICAGO HEIGHTS, IL 60412-1812
PO BOX 1813, CHICAGO HEIGHTS, IL 60412-1813
PO BOX 1814, CHICAGO HEIGHTS, IL 60412-1814
PO BOX 1815, CHICAGO HEIGHTS, IL 60412-1815
PO BOX 1816, CHICAGO HEIGHTS, IL 60412-1816
PO BOX 1817, CHICAGO HEIGHTS, IL 60412-1817
PO BOX 1818, CHICAGO HEIGHTS, IL 60412-1818
PO BOX 1819, CHICAGO HEIGHTS, IL 60412-1819
PO BOX 1820, CHICAGO HEIGHTS, IL 60412-1820
PO BOX 1821, CHICAGO HEIGHTS, IL 60412-1821
PO BOX 1822, CHICAGO HEIGHTS, IL 60412-1822
PO BOX 1823, CHICAGO HEIGHTS, IL 60412-1823
PO BOX 1824, CHICAGO HEIGHTS, IL 60412-1824
PO BOX 1825, CHICAGO HEIGHTS, IL 60412-1825
PO BOX 1826, CHICAGO HEIGHTS, IL 60412-1826
PO BOX 1827, CHICAGO HEIGHTS, IL 60412-1827
PO BOX 1828, CHICAGO HEIGHTS, IL 60412-1828
PO BOX 1829, CHICAGO HEIGHTS, IL 60412-1829
PO BOX 1830, CHICAGO HEIGHTS, IL 60412-1830
PO BOX 1831, CHICAGO HEIGHTS, IL 60412-1831
PO BOX 1832, CHICAGO HEIGHTS, IL 60412-1832
PO BOX 1833, CHICAGO HEIGHTS, IL 60412-1833
PO BOX 1834, CHICAGO HEIGHTS, IL 60412-1834
PO BOX 1835, CHICAGO HEIGHTS, IL 60412-1835
PO BOX 1836, CHICAGO HEIGHTS, IL 60412-1836
PO BOX 1837, CHICAGO HEIGHTS, IL 60412-1837
PO BOX 1838, CHICAGO HEIGHTS, IL 60412-1838
PO BOX 1839, CHICAGO HEIGHTS, IL 60412-1839
PO BOX 1840, CHICAGO HEIGHTS, IL 60412-1840
PO BOX 1841, CHICAGO HEIGHTS, IL 60412-1841
PO BOX 1842, CHICAGO HEIGHTS, IL 60412-1842
PO BOX 1843, CHICAGO HEIGHTS, IL 60412-1843
PO BOX 1844, CHICAGO HEIGHTS, IL 60412-1844
PO BOX 1845, CHICAGO HEIGHTS, IL 60412-1845
PO BOX 1846, CHICAGO HEIGHTS, IL 60412-1846
PO BOX 1847, CHICAGO HEIGHTS, IL 60412-1847
PO BOX 1848, CHICAGO HEIGHTS, IL 60412-1848
PO BOX 1849, CHICAGO HEIGHTS, IL 60412-1849
PO BOX 1850, CHICAGO HEIGHTS, IL 60412-1850
PO BOX 1851, CHICAGO HEIGHTS, IL 60412-1851
PO BOX 1852, CHICAGO HEIGHTS, IL 60412-1852
PO BOX 1853, CHICAGO HEIGHTS, IL 60412-1853
PO BOX 1854, CHICAGO HEIGHTS, IL 60412-1854
PO BOX 1855, CHICAGO HEIGHTS, IL 60412-1855
PO BOX 1856, CHICAGO HEIGHTS, IL 60412-1856
PO BOX 1857, CHICAGO HEIGHTS, IL 60412-1857
PO BOX 1858, CHICAGO HEIGHTS, IL 60412-1858
PO BOX 1859, CHICAGO HEIGHTS, IL 60412-1859
PO BOX 1860, CHICAGO HEIGHTS, IL 60412-1860
Add new comment