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 1821, RUIDOSO DOWNS, NM 88346-1821
PO BOX 1822, RUIDOSO DOWNS, NM 88346-1822
PO BOX 1823, RUIDOSO DOWNS, NM 88346-1823
PO BOX 1824, RUIDOSO DOWNS, NM 88346-1824
PO BOX 1825, RUIDOSO DOWNS, NM 88346-1825
PO BOX 1826, RUIDOSO DOWNS, NM 88346-1826
PO BOX 1827, RUIDOSO DOWNS, NM 88346-1827
PO BOX 1828, RUIDOSO DOWNS, NM 88346-1828
PO BOX 1829, RUIDOSO DOWNS, NM 88346-1829
PO BOX 1830, RUIDOSO DOWNS, NM 88346-1830
PO BOX 1831, RUIDOSO DOWNS, NM 88346-1831
PO BOX 1832, RUIDOSO DOWNS, NM 88346-1832
PO BOX 1833, RUIDOSO DOWNS, NM 88346-1833
PO BOX 1834, RUIDOSO DOWNS, NM 88346-1834
PO BOX 1835, RUIDOSO DOWNS, NM 88346-1835
PO BOX 1836, RUIDOSO DOWNS, NM 88346-1836
PO BOX 1837, RUIDOSO DOWNS, NM 88346-1837
PO BOX 1838, RUIDOSO DOWNS, NM 88346-1838
PO BOX 1839, RUIDOSO DOWNS, NM 88346-1839
PO BOX 1840, RUIDOSO DOWNS, NM 88346-1840
PO BOX 1841, RUIDOSO DOWNS, NM 88346-1841
PO BOX 1842, RUIDOSO DOWNS, NM 88346-1842
PO BOX 1843, RUIDOSO DOWNS, NM 88346-1843
PO BOX 1844, RUIDOSO DOWNS, NM 88346-1844
PO BOX 1845, RUIDOSO DOWNS, NM 88346-1845
PO BOX 1846, RUIDOSO DOWNS, NM 88346-1846
PO BOX 1847, RUIDOSO DOWNS, NM 88346-1847
PO BOX 1848, RUIDOSO DOWNS, NM 88346-1848
PO BOX 1849, RUIDOSO DOWNS, NM 88346-1849
PO BOX 1850, RUIDOSO DOWNS, NM 88346-1850
PO BOX 1851, RUIDOSO DOWNS, NM 88346-1851
PO BOX 1852, RUIDOSO DOWNS, NM 88346-1852
PO BOX 1853, RUIDOSO DOWNS, NM 88346-1853
PO BOX 1854, RUIDOSO DOWNS, NM 88346-1854
PO BOX 1855, RUIDOSO DOWNS, NM 88346-1855
PO BOX 1856, RUIDOSO DOWNS, NM 88346-1856
PO BOX 1857, RUIDOSO DOWNS, NM 88346-1857
PO BOX 1858, RUIDOSO DOWNS, NM 88346-1858
PO BOX 1859, RUIDOSO DOWNS, NM 88346-1859
PO BOX 1860, RUIDOSO DOWNS, NM 88346-1860
PO BOX 1861, RUIDOSO DOWNS, NM 88346-1861
PO BOX 1862, RUIDOSO DOWNS, NM 88346-1862
PO BOX 1863, RUIDOSO DOWNS, NM 88346-1863
PO BOX 1864, RUIDOSO DOWNS, NM 88346-1864
PO BOX 1865, RUIDOSO DOWNS, NM 88346-1865
PO BOX 1866, RUIDOSO DOWNS, NM 88346-1866
PO BOX 1867, RUIDOSO DOWNS, NM 88346-1867
PO BOX 1868, RUIDOSO DOWNS, NM 88346-1868
PO BOX 1869, RUIDOSO DOWNS, NM 88346-1869
PO BOX 1870, RUIDOSO DOWNS, NM 88346-1870
PO BOX 1871, RUIDOSO DOWNS, NM 88346-1871
PO BOX 1872, RUIDOSO DOWNS, NM 88346-1872
PO BOX 1873, RUIDOSO DOWNS, NM 88346-1873
PO BOX 1874, RUIDOSO DOWNS, NM 88346-1874
PO BOX 1875, RUIDOSO DOWNS, NM 88346-1875
PO BOX 1876, RUIDOSO DOWNS, NM 88346-1876
PO BOX 1877, RUIDOSO DOWNS, NM 88346-1877
PO BOX 1878, RUIDOSO DOWNS, NM 88346-1878
PO BOX 1879, RUIDOSO DOWNS, NM 88346-1879
PO BOX 1880, RUIDOSO DOWNS, NM 88346-1880
PO BOX 1881, RUIDOSO DOWNS, NM 88346-1881
PO BOX 1882, RUIDOSO DOWNS, NM 88346-1882
PO BOX 1883, RUIDOSO DOWNS, NM 88346-1883
PO BOX 1884, RUIDOSO DOWNS, NM 88346-1884
PO BOX 1885, RUIDOSO DOWNS, NM 88346-1885
PO BOX 1886, RUIDOSO DOWNS, NM 88346-1886
PO BOX 1887, RUIDOSO DOWNS, NM 88346-1887
PO BOX 1888, RUIDOSO DOWNS, NM 88346-1888
PO BOX 1889, RUIDOSO DOWNS, NM 88346-1889
PO BOX 1890, RUIDOSO DOWNS, NM 88346-1890
PO BOX 1891, RUIDOSO DOWNS, NM 88346-1891
PO BOX 1892, RUIDOSO DOWNS, NM 88346-1892
PO BOX 1893, RUIDOSO DOWNS, NM 88346-1893
PO BOX 1894, RUIDOSO DOWNS, NM 88346-1894
PO BOX 1895, RUIDOSO DOWNS, NM 88346-1895
PO BOX 1896, RUIDOSO DOWNS, NM 88346-1896
PO BOX 1897, RUIDOSO DOWNS, NM 88346-1897
PO BOX 1898, RUIDOSO DOWNS, NM 88346-1898
PO BOX 1899, RUIDOSO DOWNS, NM 88346-1899
PO BOX 1900, RUIDOSO DOWNS, NM 88346-1900
PO BOX 1901, RUIDOSO DOWNS, NM 88346-1901
PO BOX 1902, RUIDOSO DOWNS, NM 88346-1902
PO BOX 1903, RUIDOSO DOWNS, NM 88346-1903
PO BOX 1904, RUIDOSO DOWNS, NM 88346-1904
PO BOX 1905, RUIDOSO DOWNS, NM 88346-1905
PO BOX 1906, RUIDOSO DOWNS, NM 88346-1906
PO BOX 1907, RUIDOSO DOWNS, NM 88346-1907
PO BOX 1908, RUIDOSO DOWNS, NM 88346-1908
PO BOX 1909, RUIDOSO DOWNS, NM 88346-1909
PO BOX 1910, RUIDOSO DOWNS, NM 88346-1910
PO BOX 1911, RUIDOSO DOWNS, NM 88346-1911
PO BOX 1912, RUIDOSO DOWNS, NM 88346-1912
PO BOX 1913, RUIDOSO DOWNS, NM 88346-1913
PO BOX 1914, RUIDOSO DOWNS, NM 88346-1914
PO BOX 1915, RUIDOSO DOWNS, NM 88346-1915
PO BOX 1916, RUIDOSO DOWNS, NM 88346-1916
PO BOX 1917, RUIDOSO DOWNS, NM 88346-1917
PO BOX 1918, RUIDOSO DOWNS, NM 88346-1918
PO BOX 1919, RUIDOSO DOWNS, NM 88346-1919
PO BOX 1920, RUIDOSO DOWNS, NM 88346-1920
PO BOX 1921, RUIDOSO DOWNS, NM 88346-1921
PO BOX 1922, RUIDOSO DOWNS, NM 88346-1922
PO BOX 1923, RUIDOSO DOWNS, NM 88346-1923
PO BOX 1924, RUIDOSO DOWNS, NM 88346-1924
PO BOX 1925, RUIDOSO DOWNS, NM 88346-1925
PO BOX 1926, RUIDOSO DOWNS, NM 88346-1926
PO BOX 1927, RUIDOSO DOWNS, NM 88346-1927
PO BOX 1928, RUIDOSO DOWNS, NM 88346-1928
PO BOX 1929, RUIDOSO DOWNS, NM 88346-1929
PO BOX 1930, RUIDOSO DOWNS, NM 88346-1930
PO BOX 1931, RUIDOSO DOWNS, NM 88346-1931
PO BOX 1932, RUIDOSO DOWNS, NM 88346-1932
PO BOX 1933, RUIDOSO DOWNS, NM 88346-1933
PO BOX 1934, RUIDOSO DOWNS, NM 88346-1934
PO BOX 1935, RUIDOSO DOWNS, NM 88346-1935
PO BOX 1936, RUIDOSO DOWNS, NM 88346-1936
PO BOX 1937, RUIDOSO DOWNS, NM 88346-1937
PO BOX 1938, RUIDOSO DOWNS, NM 88346-1938
PO BOX 1939, RUIDOSO DOWNS, NM 88346-1939
PO BOX 1940, RUIDOSO DOWNS, NM 88346-1940
PO BOX 1941, RUIDOSO DOWNS, NM 88346-1941
PO BOX 1942, RUIDOSO DOWNS, NM 88346-1942
PO BOX 1943, RUIDOSO DOWNS, NM 88346-1943
PO BOX 1944, RUIDOSO DOWNS, NM 88346-1944
PO BOX 1945, RUIDOSO DOWNS, NM 88346-1945
PO BOX 1946, RUIDOSO DOWNS, NM 88346-1946
PO BOX 1947, RUIDOSO DOWNS, NM 88346-1947
PO BOX 1948, RUIDOSO DOWNS, NM 88346-1948
PO BOX 1949, RUIDOSO DOWNS, NM 88346-1949
PO BOX 1950, RUIDOSO DOWNS, NM 88346-1950
PO BOX 1951, RUIDOSO DOWNS, NM 88346-1951
PO BOX 1952, RUIDOSO DOWNS, NM 88346-1952
PO BOX 1953, RUIDOSO DOWNS, NM 88346-1953
PO BOX 1954, RUIDOSO DOWNS, NM 88346-1954
PO BOX 1955, RUIDOSO DOWNS, NM 88346-1955
PO BOX 1956, RUIDOSO DOWNS, NM 88346-1956
PO BOX 1957, RUIDOSO DOWNS, NM 88346-1957
PO BOX 1958, RUIDOSO DOWNS, NM 88346-1958
PO BOX 1959, RUIDOSO DOWNS, NM 88346-1959
PO BOX 1960, RUIDOSO DOWNS, NM 88346-1960
PO BOX 1961, RUIDOSO DOWNS, NM 88346-1961
PO BOX 1962, RUIDOSO DOWNS, NM 88346-1962
PO BOX 1963, RUIDOSO DOWNS, NM 88346-1963
PO BOX 1964, RUIDOSO DOWNS, NM 88346-1964
PO BOX 1965, RUIDOSO DOWNS, NM 88346-1965
PO BOX 1966, RUIDOSO DOWNS, NM 88346-1966
PO BOX 1967, RUIDOSO DOWNS, NM 88346-1967
PO BOX 1968, RUIDOSO DOWNS, NM 88346-1968
PO BOX 1969, RUIDOSO DOWNS, NM 88346-1969
PO BOX 1970, RUIDOSO DOWNS, NM 88346-1970
PO BOX 1971, RUIDOSO DOWNS, NM 88346-1971
PO BOX 1972, RUIDOSO DOWNS, NM 88346-1972
PO BOX 1973, RUIDOSO DOWNS, NM 88346-1973
PO BOX 1974, RUIDOSO DOWNS, NM 88346-1974
PO BOX 1975, RUIDOSO DOWNS, NM 88346-1975
PO BOX 1976, RUIDOSO DOWNS, NM 88346-1976
PO BOX 1977, RUIDOSO DOWNS, NM 88346-1977
PO BOX 1978, RUIDOSO DOWNS, NM 88346-1978
PO BOX 1979, RUIDOSO DOWNS, NM 88346-1979
PO BOX 1980, RUIDOSO DOWNS, NM 88346-1980
PO BOX 1981, RUIDOSO DOWNS, NM 88346-1981
PO BOX 1982, RUIDOSO DOWNS, NM 88346-1982
PO BOX 1983, RUIDOSO DOWNS, NM 88346-1983
PO BOX 1984, RUIDOSO DOWNS, NM 88346-1984
PO BOX 1985, RUIDOSO DOWNS, NM 88346-1985
PO BOX 1986, RUIDOSO DOWNS, NM 88346-1986
PO BOX 1987, RUIDOSO DOWNS, NM 88346-1987
PO BOX 1988, RUIDOSO DOWNS, NM 88346-1988
PO BOX 1989, RUIDOSO DOWNS, NM 88346-1989
PO BOX 1990, RUIDOSO DOWNS, NM 88346-1990
PO BOX 1991, RUIDOSO DOWNS, NM 88346-1991
PO BOX 1992, RUIDOSO DOWNS, NM 88346-1992
PO BOX 1993, RUIDOSO DOWNS, NM 88346-1993
PO BOX 1994, RUIDOSO DOWNS, NM 88346-1994
PO BOX 1995, RUIDOSO DOWNS, NM 88346-1995
PO BOX 1996, RUIDOSO DOWNS, NM 88346-1996
PO BOX 1997, RUIDOSO DOWNS, NM 88346-1997
PO BOX 1998, RUIDOSO DOWNS, NM 88346-1998
PO BOX 1999, RUIDOSO DOWNS, NM 88346-1999
PO BOX 2000, RUIDOSO DOWNS, NM 88346-2000
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