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 3001, MORRISTOWN, TN 37815-3001
PO BOX 3002, MORRISTOWN, TN 37815-3002
PO BOX 3003, MORRISTOWN, TN 37815-3003
PO BOX 3004, MORRISTOWN, TN 37815-3004
PO BOX 3005, MORRISTOWN, TN 37815-3005
PO BOX 3006, MORRISTOWN, TN 37815-3006
PO BOX 3007, MORRISTOWN, TN 37815-3007
PO BOX 3008, MORRISTOWN, TN 37815-3008
PO BOX 3009, MORRISTOWN, TN 37815-3009
PO BOX 3010, MORRISTOWN, TN 37815-3010
PO BOX 3011, MORRISTOWN, TN 37815-3011
PO BOX 3012, MORRISTOWN, TN 37815-3012
PO BOX 3013, MORRISTOWN, TN 37815-3013
PO BOX 3014, MORRISTOWN, TN 37815-3014
PO BOX 3015, MORRISTOWN, TN 37815-3015
PO BOX 3016, MORRISTOWN, TN 37815-3016
PO BOX 3017, MORRISTOWN, TN 37815-3017
PO BOX 3018, MORRISTOWN, TN 37815-3018
PO BOX 3019, MORRISTOWN, TN 37815-3019
PO BOX 3020, MORRISTOWN, TN 37815-3020
PO BOX 3021, MORRISTOWN, TN 37815-3021
PO BOX 3022, MORRISTOWN, TN 37815-3022
PO BOX 3023, MORRISTOWN, TN 37815-3023
PO BOX 3024, MORRISTOWN, TN 37815-3024
PO BOX 3025, MORRISTOWN, TN 37815-3025
PO BOX 3026, MORRISTOWN, TN 37815-3026
PO BOX 3027, MORRISTOWN, TN 37815-3027
PO BOX 3028, MORRISTOWN, TN 37815-3028
PO BOX 3029, MORRISTOWN, TN 37815-3029
PO BOX 3030, MORRISTOWN, TN 37815-3030
PO BOX 3031, MORRISTOWN, TN 37815-3031
PO BOX 3032, MORRISTOWN, TN 37815-3032
PO BOX 3033, MORRISTOWN, TN 37815-3033
PO BOX 3034, MORRISTOWN, TN 37815-3034
PO BOX 3035, MORRISTOWN, TN 37815-3035
PO BOX 3036, MORRISTOWN, TN 37815-3036
PO BOX 3037, MORRISTOWN, TN 37815-3037
PO BOX 3038, MORRISTOWN, TN 37815-3038
PO BOX 3039, MORRISTOWN, TN 37815-3039
PO BOX 3040, MORRISTOWN, TN 37815-3040
PO BOX 3041, MORRISTOWN, TN 37815-3041
PO BOX 3042, MORRISTOWN, TN 37815-3042
PO BOX 3043, MORRISTOWN, TN 37815-3043
PO BOX 3044, MORRISTOWN, TN 37815-3044
PO BOX 3045, MORRISTOWN, TN 37815-3045
PO BOX 3046, MORRISTOWN, TN 37815-3046
PO BOX 3047, MORRISTOWN, TN 37815-3047
PO BOX 3048, MORRISTOWN, TN 37815-3048
PO BOX 3049, MORRISTOWN, TN 37815-3049
PO BOX 3050, MORRISTOWN, TN 37815-3050
PO BOX 3051, MORRISTOWN, TN 37815-3051
PO BOX 3052, MORRISTOWN, TN 37815-3052
PO BOX 3053, MORRISTOWN, TN 37815-3053
PO BOX 3054, MORRISTOWN, TN 37815-3054
PO BOX 3055, MORRISTOWN, TN 37815-3055
PO BOX 3056, MORRISTOWN, TN 37815-3056
PO BOX 3057, MORRISTOWN, TN 37815-3057
PO BOX 3058, MORRISTOWN, TN 37815-3058
PO BOX 3059, MORRISTOWN, TN 37815-3059
PO BOX 3060, MORRISTOWN, TN 37815-3060
PO BOX 3061, MORRISTOWN, TN 37815-3061
PO BOX 3062, MORRISTOWN, TN 37815-3062
PO BOX 3063, MORRISTOWN, TN 37815-3063
PO BOX 3064, MORRISTOWN, TN 37815-3064
PO BOX 3065, MORRISTOWN, TN 37815-3065
PO BOX 3066, MORRISTOWN, TN 37815-3066
PO BOX 3067, MORRISTOWN, TN 37815-3067
PO BOX 3068, MORRISTOWN, TN 37815-3068
PO BOX 3069, MORRISTOWN, TN 37815-3069
PO BOX 3070, MORRISTOWN, TN 37815-3070
PO BOX 3071, MORRISTOWN, TN 37815-3071
PO BOX 3072, MORRISTOWN, TN 37815-3072
PO BOX 3073, MORRISTOWN, TN 37815-3073
PO BOX 3074, MORRISTOWN, TN 37815-3074
PO BOX 3075, MORRISTOWN, TN 37815-3075
PO BOX 3076, MORRISTOWN, TN 37815-3076
PO BOX 3077, MORRISTOWN, TN 37815-3077
PO BOX 3078, MORRISTOWN, TN 37815-3078
PO BOX 3079, MORRISTOWN, TN 37815-3079
PO BOX 3080, MORRISTOWN, TN 37815-3080
PO BOX 3081, MORRISTOWN, TN 37815-3081
PO BOX 3082, MORRISTOWN, TN 37815-3082
PO BOX 3083, MORRISTOWN, TN 37815-3083
PO BOX 3084, MORRISTOWN, TN 37815-3084
PO BOX 3085, MORRISTOWN, TN 37815-3085
PO BOX 3086, MORRISTOWN, TN 37815-3086
PO BOX 3087, MORRISTOWN, TN 37815-3087
PO BOX 3088, MORRISTOWN, TN 37815-3088
PO BOX 3089, MORRISTOWN, TN 37815-3089
PO BOX 3090, MORRISTOWN, TN 37815-3090
PO BOX 3091, MORRISTOWN, TN 37815-3091
PO BOX 3092, MORRISTOWN, TN 37815-3092
PO BOX 3093, MORRISTOWN, TN 37815-3093
PO BOX 3094, MORRISTOWN, TN 37815-3094
PO BOX 3095, MORRISTOWN, TN 37815-3095
PO BOX 3096, MORRISTOWN, TN 37815-3096
PO BOX 3097, MORRISTOWN, TN 37815-3097
PO BOX 3098, MORRISTOWN, TN 37815-3098
PO BOX 3099, MORRISTOWN, TN 37815-3099
PO BOX 3100, MORRISTOWN, TN 37815-3100
PO BOX 3101, MORRISTOWN, TN 37815-3101
PO BOX 3102, MORRISTOWN, TN 37815-3102
PO BOX 3103, MORRISTOWN, TN 37815-3103
PO BOX 3104, MORRISTOWN, TN 37815-3104
PO BOX 3105, MORRISTOWN, TN 37815-3105
PO BOX 3106, MORRISTOWN, TN 37815-3106
PO BOX 3107, MORRISTOWN, TN 37815-3107
PO BOX 3108, MORRISTOWN, TN 37815-3108
PO BOX 3109, MORRISTOWN, TN 37815-3109
PO BOX 3110, MORRISTOWN, TN 37815-3110
PO BOX 3111, MORRISTOWN, TN 37815-3111
PO BOX 3112, MORRISTOWN, TN 37815-3112
PO BOX 3113, MORRISTOWN, TN 37815-3113
PO BOX 3114, MORRISTOWN, TN 37815-3114
PO BOX 3115, MORRISTOWN, TN 37815-3115
PO BOX 3116, MORRISTOWN, TN 37815-3116
PO BOX 3117, MORRISTOWN, TN 37815-3117
PO BOX 3118, MORRISTOWN, TN 37815-3118
PO BOX 3119, MORRISTOWN, TN 37815-3119
PO BOX 3120, MORRISTOWN, TN 37815-3120
PO BOX 3121, MORRISTOWN, TN 37815-3121
PO BOX 3122, MORRISTOWN, TN 37815-3122
PO BOX 3123, MORRISTOWN, TN 37815-3123
PO BOX 3124, MORRISTOWN, TN 37815-3124
PO BOX 3125, MORRISTOWN, TN 37815-3125
PO BOX 3126, MORRISTOWN, TN 37815-3126
PO BOX 3127, MORRISTOWN, TN 37815-3127
PO BOX 3128, MORRISTOWN, TN 37815-3128
PO BOX 3129, MORRISTOWN, TN 37815-3129
PO BOX 3130, MORRISTOWN, TN 37815-3130
PO BOX 3131, MORRISTOWN, TN 37815-3131
PO BOX 3132, MORRISTOWN, TN 37815-3132
PO BOX 3133, MORRISTOWN, TN 37815-3133
PO BOX 3134, MORRISTOWN, TN 37815-3134
PO BOX 3135, MORRISTOWN, TN 37815-3135
PO BOX 3136, MORRISTOWN, TN 37815-3136
PO BOX 3137, MORRISTOWN, TN 37815-3137
PO BOX 3138, MORRISTOWN, TN 37815-3138
PO BOX 3139, MORRISTOWN, TN 37815-3139
PO BOX 3140, MORRISTOWN, TN 37815-3140
PO BOX 3141, MORRISTOWN, TN 37815-3141
PO BOX 3142, MORRISTOWN, TN 37815-3142
PO BOX 3143, MORRISTOWN, TN 37815-3143
PO BOX 3144, MORRISTOWN, TN 37815-3144
PO BOX 3145, MORRISTOWN, TN 37815-3145
PO BOX 3146, MORRISTOWN, TN 37815-3146
PO BOX 3147, MORRISTOWN, TN 37815-3147
PO BOX 3148, MORRISTOWN, TN 37815-3148
PO BOX 3149, MORRISTOWN, TN 37815-3149
PO BOX 3150, MORRISTOWN, TN 37815-3150
PO BOX 3151, MORRISTOWN, TN 37815-3151
PO BOX 3152, MORRISTOWN, TN 37815-3152
PO BOX 3153, MORRISTOWN, TN 37815-3153
PO BOX 3154, MORRISTOWN, TN 37815-3154
PO BOX 3155, MORRISTOWN, TN 37815-3155
PO BOX 3156, MORRISTOWN, TN 37815-3156
PO BOX 3157, MORRISTOWN, TN 37815-3157
PO BOX 3158, MORRISTOWN, TN 37815-3158
PO BOX 3159, MORRISTOWN, TN 37815-3159
PO BOX 3160, MORRISTOWN, TN 37815-3160
PO BOX 3161, MORRISTOWN, TN 37815-3161
PO BOX 3162, MORRISTOWN, TN 37815-3162
PO BOX 3163, MORRISTOWN, TN 37815-3163
PO BOX 3164, MORRISTOWN, TN 37815-3164
PO BOX 3165, MORRISTOWN, TN 37815-3165
PO BOX 3166, MORRISTOWN, TN 37815-3166
PO BOX 3167, MORRISTOWN, TN 37815-3167
PO BOX 3168, MORRISTOWN, TN 37815-3168
PO BOX 3169, MORRISTOWN, TN 37815-3169
PO BOX 3170, MORRISTOWN, TN 37815-3170
PO BOX 3171, MORRISTOWN, TN 37815-3171
PO BOX 3172, MORRISTOWN, TN 37815-3172
PO BOX 3173, MORRISTOWN, TN 37815-3173
PO BOX 3174, MORRISTOWN, TN 37815-3174
PO BOX 3175, MORRISTOWN, TN 37815-3175
PO BOX 3176, MORRISTOWN, TN 37815-3176
PO BOX 3177, MORRISTOWN, TN 37815-3177
PO BOX 3178, MORRISTOWN, TN 37815-3178
PO BOX 3179, MORRISTOWN, TN 37815-3179
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