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, GRANADA HILLS, CA 91394-0001
PO BOX 3002, GRANADA HILLS, CA 91394-0002
PO BOX 3003, GRANADA HILLS, CA 91394-0003
PO BOX 3004, GRANADA HILLS, CA 91394-0004
PO BOX 3005, GRANADA HILLS, CA 91394-0005
PO BOX 3006, GRANADA HILLS, CA 91394-0006
PO BOX 3007, GRANADA HILLS, CA 91394-0007
PO BOX 3008, GRANADA HILLS, CA 91394-0008
PO BOX 3009, GRANADA HILLS, CA 91394-0009
PO BOX 3010, GRANADA HILLS, CA 91394-0010
PO BOX 3011, GRANADA HILLS, CA 91394-0011
PO BOX 3012, GRANADA HILLS, CA 91394-0012
PO BOX 3013, GRANADA HILLS, CA 91394-0013
PO BOX 3014, GRANADA HILLS, CA 91394-0014
PO BOX 3015, GRANADA HILLS, CA 91394-0015
PO BOX 3016, GRANADA HILLS, CA 91394-0016
PO BOX 3017, GRANADA HILLS, CA 91394-0017
PO BOX 3018, GRANADA HILLS, CA 91394-0018
PO BOX 3019, GRANADA HILLS, CA 91394-0019
PO BOX 3020, GRANADA HILLS, CA 91394-0020
PO BOX 3021, GRANADA HILLS, CA 91394-0021
PO BOX 3022, GRANADA HILLS, CA 91394-0022
PO BOX 3023, GRANADA HILLS, CA 91394-0023
PO BOX 3024, GRANADA HILLS, CA 91394-0024
PO BOX 3025, GRANADA HILLS, CA 91394-0025
PO BOX 3026, GRANADA HILLS, CA 91394-0026
PO BOX 3027, GRANADA HILLS, CA 91394-0027
PO BOX 3028, GRANADA HILLS, CA 91394-0028
PO BOX 3029, GRANADA HILLS, CA 91394-0029
PO BOX 3030, GRANADA HILLS, CA 91394-0030
PO BOX 3031, GRANADA HILLS, CA 91394-0031
PO BOX 3032, GRANADA HILLS, CA 91394-0032
PO BOX 3033, GRANADA HILLS, CA 91394-0033
PO BOX 3034, GRANADA HILLS, CA 91394-0034
PO BOX 3035, GRANADA HILLS, CA 91394-0035
PO BOX 3036, GRANADA HILLS, CA 91394-0036
PO BOX 3037, GRANADA HILLS, CA 91394-0037
PO BOX 3038, GRANADA HILLS, CA 91394-0038
PO BOX 3039, GRANADA HILLS, CA 91394-0039
PO BOX 3040, GRANADA HILLS, CA 91394-0040
PO BOX 3041, GRANADA HILLS, CA 91394-0041
PO BOX 3042, GRANADA HILLS, CA 91394-0042
PO BOX 3043, GRANADA HILLS, CA 91394-0043
PO BOX 3044, GRANADA HILLS, CA 91394-0044
PO BOX 3045, GRANADA HILLS, CA 91394-0045
PO BOX 3046, GRANADA HILLS, CA 91394-0046
PO BOX 3047, GRANADA HILLS, CA 91394-0047
PO BOX 3048, GRANADA HILLS, CA 91394-0048
PO BOX 3049, GRANADA HILLS, CA 91394-0049
PO BOX 3050, GRANADA HILLS, CA 91394-0050
PO BOX 3051, GRANADA HILLS, CA 91394-0051
PO BOX 3052, GRANADA HILLS, CA 91394-0052
PO BOX 3053, GRANADA HILLS, CA 91394-0053
PO BOX 3054, GRANADA HILLS, CA 91394-0054
PO BOX 3055, GRANADA HILLS, CA 91394-0055
PO BOX 3056, GRANADA HILLS, CA 91394-0056
PO BOX 3057, GRANADA HILLS, CA 91394-0057
PO BOX 3058, GRANADA HILLS, CA 91394-0058
PO BOX 3059, GRANADA HILLS, CA 91394-0059
PO BOX 3060, GRANADA HILLS, CA 91394-0060
PO BOX 3061, GRANADA HILLS, CA 91394-0061
PO BOX 3062, GRANADA HILLS, CA 91394-0062
PO BOX 3063, GRANADA HILLS, CA 91394-0063
PO BOX 3064, GRANADA HILLS, CA 91394-0064
PO BOX 3065, GRANADA HILLS, CA 91394-0065
PO BOX 3066, GRANADA HILLS, CA 91394-0066
PO BOX 3067, GRANADA HILLS, CA 91394-0067
PO BOX 3068, GRANADA HILLS, CA 91394-0068
PO BOX 3069, GRANADA HILLS, CA 91394-0069
PO BOX 3070, GRANADA HILLS, CA 91394-0070
PO BOX 3071, GRANADA HILLS, CA 91394-0071
PO BOX 3072, GRANADA HILLS, CA 91394-0072
PO BOX 3073, GRANADA HILLS, CA 91394-0073
PO BOX 3074, GRANADA HILLS, CA 91394-0074
PO BOX 3075, GRANADA HILLS, CA 91394-0075
PO BOX 3076, GRANADA HILLS, CA 91394-0076
PO BOX 3077, GRANADA HILLS, CA 91394-0077
PO BOX 3078, GRANADA HILLS, CA 91394-0078
PO BOX 3079, GRANADA HILLS, CA 91394-0079
PO BOX 3080, GRANADA HILLS, CA 91394-0080
PO BOX 3081, GRANADA HILLS, CA 91394-0081
PO BOX 3082, GRANADA HILLS, CA 91394-0082
PO BOX 3083, GRANADA HILLS, CA 91394-0083
PO BOX 3084, GRANADA HILLS, CA 91394-0084
PO BOX 3085, GRANADA HILLS, CA 91394-0085
PO BOX 3086, GRANADA HILLS, CA 91394-0086
PO BOX 3087, GRANADA HILLS, CA 91394-0087
PO BOX 3088, GRANADA HILLS, CA 91394-0088
PO BOX 3089, GRANADA HILLS, CA 91394-0089
PO BOX 3090, GRANADA HILLS, CA 91394-0090
PO BOX 3091, GRANADA HILLS, CA 91394-0091
PO BOX 3092, GRANADA HILLS, CA 91394-0092
PO BOX 3093, GRANADA HILLS, CA 91394-0093
PO BOX 3094, GRANADA HILLS, CA 91394-0094
PO BOX 3095, GRANADA HILLS, CA 91394-0095
PO BOX 3096, GRANADA HILLS, CA 91394-0096
PO BOX 3097, GRANADA HILLS, CA 91394-0097
PO BOX 3098, GRANADA HILLS, CA 91394-0098
PO BOX 3099, GRANADA HILLS, CA 91394-0099
PO BOX 3100, GRANADA HILLS, CA 91394-0100
PO BOX 3101, GRANADA HILLS, CA 91394-0101
PO BOX 3102, GRANADA HILLS, CA 91394-0102
PO BOX 3103, GRANADA HILLS, CA 91394-0103
PO BOX 3104, GRANADA HILLS, CA 91394-0104
PO BOX 3105, GRANADA HILLS, CA 91394-0105
PO BOX 3106, GRANADA HILLS, CA 91394-0106
PO BOX 3107, GRANADA HILLS, CA 91394-0107
PO BOX 3108, GRANADA HILLS, CA 91394-0108
PO BOX 3109, GRANADA HILLS, CA 91394-0109
PO BOX 3110, GRANADA HILLS, CA 91394-0110
PO BOX 3111, GRANADA HILLS, CA 91394-0111
PO BOX 3112, GRANADA HILLS, CA 91394-0112
PO BOX 3113, GRANADA HILLS, CA 91394-0113
PO BOX 3114, GRANADA HILLS, CA 91394-0114
PO BOX 3115, GRANADA HILLS, CA 91394-0115
PO BOX 3116, GRANADA HILLS, CA 91394-0116
PO BOX 3117, GRANADA HILLS, CA 91394-0117
PO BOX 3118, GRANADA HILLS, CA 91394-0118
PO BOX 3119, GRANADA HILLS, CA 91394-0119
PO BOX 3120, GRANADA HILLS, CA 91394-0120
PO BOX 3121, GRANADA HILLS, CA 91394-0121
PO BOX 3122, GRANADA HILLS, CA 91394-0122
PO BOX 3123, GRANADA HILLS, CA 91394-0123
PO BOX 3124, GRANADA HILLS, CA 91394-0124
PO BOX 3125, GRANADA HILLS, CA 91394-0125
PO BOX 3126, GRANADA HILLS, CA 91394-0126
PO BOX 3127, GRANADA HILLS, CA 91394-0127
PO BOX 3128, GRANADA HILLS, CA 91394-0128
PO BOX 3129, GRANADA HILLS, CA 91394-0129
PO BOX 3130, GRANADA HILLS, CA 91394-0130
PO BOX 3131, GRANADA HILLS, CA 91394-0131
PO BOX 3132, GRANADA HILLS, CA 91394-0132
PO BOX 3133, GRANADA HILLS, CA 91394-0133
PO BOX 3134, GRANADA HILLS, CA 91394-0134
PO BOX 3135, GRANADA HILLS, CA 91394-0135
PO BOX 3136, GRANADA HILLS, CA 91394-0136
PO BOX 3137, GRANADA HILLS, CA 91394-0137
PO BOX 3138, GRANADA HILLS, CA 91394-0138
PO BOX 3139, GRANADA HILLS, CA 91394-0139
PO BOX 3140, GRANADA HILLS, CA 91394-0140
PO BOX 3141, GRANADA HILLS, CA 91394-0141
PO BOX 3142, GRANADA HILLS, CA 91394-0142
PO BOX 3143, GRANADA HILLS, CA 91394-0143
PO BOX 3144, GRANADA HILLS, CA 91394-0144
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