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 881, WHITE RIVER JUNCTION, VT 05001-0881
PO BOX 882, WHITE RIVER JUNCTION, VT 05001-0882
PO BOX 883, WHITE RIVER JUNCTION, VT 05001-0883
PO BOX 884, WHITE RIVER JUNCTION, VT 05001-0884
PO BOX 885, WHITE RIVER JUNCTION, VT 05001-0885
PO BOX 886, WHITE RIVER JUNCTION, VT 05001-0886
PO BOX 887, WHITE RIVER JUNCTION, VT 05001-0887
PO BOX 888, WHITE RIVER JUNCTION, VT 05001-0888
PO BOX 889, WHITE RIVER JUNCTION, VT 05001-0889
PO BOX 890, WHITE RIVER JUNCTION, VT 05001-0890
PO BOX 891, WHITE RIVER JUNCTION, VT 05001-0891
PO BOX 892, WHITE RIVER JUNCTION, VT 05001-0892
PO BOX 893, WHITE RIVER JUNCTION, VT 05001-0893
PO BOX 894, WHITE RIVER JUNCTION, VT 05001-0894
PO BOX 895, WHITE RIVER JUNCTION, VT 05001-0895
PO BOX 896, WHITE RIVER JUNCTION, VT 05001-0896
PO BOX 897, WHITE RIVER JUNCTION, VT 05001-0897
PO BOX 898, WHITE RIVER JUNCTION, VT 05001-0898
PO BOX 899, WHITE RIVER JUNCTION, VT 05001-0899
PO BOX 900, WHITE RIVER JUNCTION, VT 05001-0900
PO BOX 901, WHITE RIVER JUNCTION, VT 05001-0901
PO BOX 902, WHITE RIVER JUNCTION, VT 05001-0902
PO BOX 903, WHITE RIVER JUNCTION, VT 05001-0903
PO BOX 904, WHITE RIVER JUNCTION, VT 05001-0904
PO BOX 905, WHITE RIVER JUNCTION, VT 05001-0905
PO BOX 906, WHITE RIVER JUNCTION, VT 05001-0906
PO BOX 907, WHITE RIVER JUNCTION, VT 05001-0907
PO BOX 908, WHITE RIVER JUNCTION, VT 05001-0908
PO BOX 909, WHITE RIVER JUNCTION, VT 05001-0909
PO BOX 910, WHITE RIVER JUNCTION, VT 05001-0910
PO BOX 911, WHITE RIVER JUNCTION, VT 05001-0911
PO BOX 912, WHITE RIVER JUNCTION, VT 05001-0912
PO BOX 913, WHITE RIVER JUNCTION, VT 05001-0913
PO BOX 914, WHITE RIVER JUNCTION, VT 05001-0914
PO BOX 915, WHITE RIVER JUNCTION, VT 05001-0915
PO BOX 916, WHITE RIVER JUNCTION, VT 05001-0916
PO BOX 917, WHITE RIVER JUNCTION, VT 05001-0917
PO BOX 918, WHITE RIVER JUNCTION, VT 05001-0918
PO BOX 919, WHITE RIVER JUNCTION, VT 05001-0919
PO BOX 920, WHITE RIVER JUNCTION, VT 05001-0920
PO BOX 921, WHITE RIVER JUNCTION, VT 05001-0921
PO BOX 922, WHITE RIVER JUNCTION, VT 05001-0922
PO BOX 923, WHITE RIVER JUNCTION, VT 05001-0923
PO BOX 924, WHITE RIVER JUNCTION, VT 05001-0924
PO BOX 925, WHITE RIVER JUNCTION, VT 05001-0925
PO BOX 926, WHITE RIVER JUNCTION, VT 05001-0926
PO BOX 927, WHITE RIVER JUNCTION, VT 05001-0927
PO BOX 928, WHITE RIVER JUNCTION, VT 05001-0928
PO BOX 929, WHITE RIVER JUNCTION, VT 05001-0929
PO BOX 930, WHITE RIVER JUNCTION, VT 05001-0930
PO BOX 931, WHITE RIVER JUNCTION, VT 05001-0931
PO BOX 932, WHITE RIVER JUNCTION, VT 05001-0932
PO BOX 933, WHITE RIVER JUNCTION, VT 05001-0933
PO BOX 934, WHITE RIVER JUNCTION, VT 05001-0934
PO BOX 935, WHITE RIVER JUNCTION, VT 05001-0935
PO BOX 936, WHITE RIVER JUNCTION, VT 05001-0936
PO BOX 937, WHITE RIVER JUNCTION, VT 05001-0937
PO BOX 938, WHITE RIVER JUNCTION, VT 05001-0938
PO BOX 939, WHITE RIVER JUNCTION, VT 05001-0939
PO BOX 940, WHITE RIVER JUNCTION, VT 05001-0940
PO BOX 941, WHITE RIVER JUNCTION, VT 05001-0941
PO BOX 942, WHITE RIVER JUNCTION, VT 05001-0942
PO BOX 943, WHITE RIVER JUNCTION, VT 05001-0943
PO BOX 944, WHITE RIVER JUNCTION, VT 05001-0944
PO BOX 945, WHITE RIVER JUNCTION, VT 05001-0945
PO BOX 946, WHITE RIVER JUNCTION, VT 05001-0946
PO BOX 947, WHITE RIVER JUNCTION, VT 05001-0947
PO BOX 948, WHITE RIVER JUNCTION, VT 05001-0948
PO BOX 949, WHITE RIVER JUNCTION, VT 05001-0949
PO BOX 950, WHITE RIVER JUNCTION, VT 05001-0950
PO BOX 951, WHITE RIVER JUNCTION, VT 05001-0951
PO BOX 952, WHITE RIVER JUNCTION, VT 05001-0952
PO BOX 953, WHITE RIVER JUNCTION, VT 05001-0953
PO BOX 954, WHITE RIVER JUNCTION, VT 05001-0954
PO BOX 955, WHITE RIVER JUNCTION, VT 05001-0955
PO BOX 956, WHITE RIVER JUNCTION, VT 05001-0956
PO BOX 957, WHITE RIVER JUNCTION, VT 05001-0957
PO BOX 958, WHITE RIVER JUNCTION, VT 05001-0958
PO BOX 959, WHITE RIVER JUNCTION, VT 05001-0959
PO BOX 960, WHITE RIVER JUNCTION, VT 05001-0960
PO BOX 961, WHITE RIVER JUNCTION, VT 05001-0961
PO BOX 962, WHITE RIVER JUNCTION, VT 05001-0962
PO BOX 963, WHITE RIVER JUNCTION, VT 05001-0963
PO BOX 964, WHITE RIVER JUNCTION, VT 05001-0964
PO BOX 965, WHITE RIVER JUNCTION, VT 05001-0965
PO BOX 966, WHITE RIVER JUNCTION, VT 05001-0966
PO BOX 967, WHITE RIVER JUNCTION, VT 05001-0967
PO BOX 968, WHITE RIVER JUNCTION, VT 05001-0968
PO BOX 969, WHITE RIVER JUNCTION, VT 05001-0969
PO BOX 970, WHITE RIVER JUNCTION, VT 05001-0970
PO BOX 971, WHITE RIVER JUNCTION, VT 05001-0971
PO BOX 972, WHITE RIVER JUNCTION, VT 05001-0972
PO BOX 973, WHITE RIVER JUNCTION, VT 05001-0973
PO BOX 974, WHITE RIVER JUNCTION, VT 05001-0974
PO BOX 975, WHITE RIVER JUNCTION, VT 05001-0975
PO BOX 976, WHITE RIVER JUNCTION, VT 05001-0976
PO BOX 977, WHITE RIVER JUNCTION, VT 05001-0977
PO BOX 978, WHITE RIVER JUNCTION, VT 05001-0978
PO BOX 979, WHITE RIVER JUNCTION, VT 05001-0979
PO BOX 980, WHITE RIVER JUNCTION, VT 05001-0980
PO BOX 981, WHITE RIVER JUNCTION, VT 05001-0981
PO BOX 982, WHITE RIVER JUNCTION, VT 05001-0982
PO BOX 983, WHITE RIVER JUNCTION, VT 05001-0983
PO BOX 984, WHITE RIVER JUNCTION, VT 05001-0984
PO BOX 985, WHITE RIVER JUNCTION, VT 05001-0985
PO BOX 986, WHITE RIVER JUNCTION, VT 05001-0986
PO BOX 987, WHITE RIVER JUNCTION, VT 05001-0987
PO BOX 988, WHITE RIVER JUNCTION, VT 05001-0988
PO BOX 989, WHITE RIVER JUNCTION, VT 05001-0989
PO BOX 990, WHITE RIVER JUNCTION, VT 05001-0990
PO BOX 991, WHITE RIVER JUNCTION, VT 05001-0991
PO BOX 992, WHITE RIVER JUNCTION, VT 05001-0992
PO BOX 993, WHITE RIVER JUNCTION, VT 05001-0993
PO BOX 994, WHITE RIVER JUNCTION, VT 05001-0994
PO BOX 995, WHITE RIVER JUNCTION, VT 05001-0995
PO BOX 996, WHITE RIVER JUNCTION, VT 05001-0996
PO BOX 997, WHITE RIVER JUNCTION, VT 05001-0997
PO BOX 998, WHITE RIVER JUNCTION, VT 05001-0998
PO BOX 999, WHITE RIVER JUNCTION, VT 05001-0999
PO BOX 1000, WHITE RIVER JUNCTION, VT 05001-1000
PO BOX 1001, WHITE RIVER JUNCTION, VT 05001-1001
PO BOX 1002, WHITE RIVER JUNCTION, VT 05001-1002
PO BOX 1003, WHITE RIVER JUNCTION, VT 05001-1003
PO BOX 1004, WHITE RIVER JUNCTION, VT 05001-1004
PO BOX 1005, WHITE RIVER JUNCTION, VT 05001-1005
PO BOX 1006, WHITE RIVER JUNCTION, VT 05001-1006
PO BOX 1007, WHITE RIVER JUNCTION, VT 05001-1007
PO BOX 1008, WHITE RIVER JUNCTION, VT 05001-1008
PO BOX 1009, WHITE RIVER JUNCTION, VT 05001-1009
PO BOX 1010, WHITE RIVER JUNCTION, VT 05001-1010
PO BOX 1011, WHITE RIVER JUNCTION, VT 05001-1011
PO BOX 1012, WHITE RIVER JUNCTION, VT 05001-1012
PO BOX 1013, WHITE RIVER JUNCTION, VT 05001-1013
PO BOX 1014, WHITE RIVER JUNCTION, VT 05001-1014
PO BOX 1015, WHITE RIVER JUNCTION, VT 05001-1015
PO BOX 1016, WHITE RIVER JUNCTION, VT 05001-1016
PO BOX 1017, WHITE RIVER JUNCTION, VT 05001-1017
PO BOX 1018, WHITE RIVER JUNCTION, VT 05001-1018
PO BOX 1019, WHITE RIVER JUNCTION, VT 05001-1019
PO BOX 1020, WHITE RIVER JUNCTION, VT 05001-1020
PO BOX 1021, WHITE RIVER JUNCTION, VT 05001-1021
PO BOX 1022, WHITE RIVER JUNCTION, VT 05001-1022
PO BOX 1023, WHITE RIVER JUNCTION, VT 05001-1023
PO BOX 1024, WHITE RIVER JUNCTION, VT 05001-1024
PO BOX 1025, WHITE RIVER JUNCTION, VT 05001-1025
PO BOX 1026, WHITE RIVER JUNCTION, VT 05001-1026
PO BOX 1027, WHITE RIVER JUNCTION, VT 05001-1027
PO BOX 1028, WHITE RIVER JUNCTION, VT 05001-1028
PO BOX 1029, WHITE RIVER JUNCTION, VT 05001-1029
PO BOX 1030, WHITE RIVER JUNCTION, VT 05001-1030
PO BOX 1031, WHITE RIVER JUNCTION, VT 05001-1031
PO BOX 1032, WHITE RIVER JUNCTION, VT 05001-1032
PO BOX 1033, WHITE RIVER JUNCTION, VT 05001-1033
PO BOX 1034, WHITE RIVER JUNCTION, VT 05001-1034
PO BOX 1035, WHITE RIVER JUNCTION, VT 05001-1035
PO BOX 1036, WHITE RIVER JUNCTION, VT 05001-1036
PO BOX 1037, WHITE RIVER JUNCTION, VT 05001-1037
PO BOX 1038, WHITE RIVER JUNCTION, VT 05001-1038
PO BOX 1039, WHITE RIVER JUNCTION, VT 05001-1039
PO BOX 1040, WHITE RIVER JUNCTION, VT 05001-1040
PO BOX 1041, WHITE RIVER JUNCTION, VT 05001-1041
PO BOX 1042, WHITE RIVER JUNCTION, VT 05001-1042
PO BOX 1043, WHITE RIVER JUNCTION, VT 05001-1043
PO BOX 1044, WHITE RIVER JUNCTION, VT 05001-1044
PO BOX 1045, WHITE RIVER JUNCTION, VT 05001-1045
PO BOX 1046, WHITE RIVER JUNCTION, VT 05001-1046
PO BOX 1047, WHITE RIVER JUNCTION, VT 05001-1047
PO BOX 1048, WHITE RIVER JUNCTION, VT 05001-1048
PO BOX 1049, WHITE RIVER JUNCTION, VT 05001-1049
PO BOX 1050, WHITE RIVER JUNCTION, VT 05001-1050
PO BOX 1051, WHITE RIVER JUNCTION, VT 05001-1051
PO BOX 1052, WHITE RIVER JUNCTION, VT 05001-1052
PO BOX 1053, WHITE RIVER JUNCTION, VT 05001-1053
PO BOX 1054, WHITE RIVER JUNCTION, VT 05001-1054
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