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 18000, PARRIS ISLAND, SC 29905-8000
PO BOX 18001, PARRIS ISLAND, SC 29905-8001
PO BOX 18002, PARRIS ISLAND, SC 29905-8002
PO BOX 18003, PARRIS ISLAND, SC 29905-8003
PO BOX 18004, PARRIS ISLAND, SC 29905-8004
PO BOX 18005, PARRIS ISLAND, SC 29905-8005
PO BOX 18006, PARRIS ISLAND, SC 29905-8006
PO BOX 18007, PARRIS ISLAND, SC 29905-8007
PO BOX 18008, PARRIS ISLAND, SC 29905-8008
PO BOX 18009, PARRIS ISLAND, SC 29905-8009
PO BOX 18010, PARRIS ISLAND, SC 29905-8010
PO BOX 18011, PARRIS ISLAND, SC 29905-8011
PO BOX 18012, PARRIS ISLAND, SC 29905-8012
PO BOX 18013, PARRIS ISLAND, SC 29905-8013
PO BOX 18014, PARRIS ISLAND, SC 29905-8014
PO BOX 18015, PARRIS ISLAND, SC 29905-8015
PO BOX 18016, PARRIS ISLAND, SC 29905-8016
PO BOX 18017, PARRIS ISLAND, SC 29905-8017
PO BOX 18018, PARRIS ISLAND, SC 29905-8018
PO BOX 18019, PARRIS ISLAND, SC 29905-8019
PO BOX 18020, PARRIS ISLAND, SC 29905-8020
PO BOX 18021, PARRIS ISLAND, SC 29905-8021
PO BOX 18022, PARRIS ISLAND, SC 29905-8022
PO BOX 18023, PARRIS ISLAND, SC 29905-8023
PO BOX 18024, PARRIS ISLAND, SC 29905-8024
PO BOX 18025, PARRIS ISLAND, SC 29905-8025
PO BOX 18026, PARRIS ISLAND, SC 29905-8026
PO BOX 18027, PARRIS ISLAND, SC 29905-8027
PO BOX 18028, PARRIS ISLAND, SC 29905-8028
PO BOX 18029, PARRIS ISLAND, SC 29905-8029
PO BOX 18030, PARRIS ISLAND, SC 29905-8030
PO BOX 18031, PARRIS ISLAND, SC 29905-8031
PO BOX 18032, PARRIS ISLAND, SC 29905-8032
PO BOX 18033, PARRIS ISLAND, SC 29905-8033
PO BOX 18034, PARRIS ISLAND, SC 29905-8034
PO BOX 18035, PARRIS ISLAND, SC 29905-8035
PO BOX 18036, PARRIS ISLAND, SC 29905-8036
PO BOX 18037, PARRIS ISLAND, SC 29905-8037
PO BOX 18038, PARRIS ISLAND, SC 29905-8038
PO BOX 18039, PARRIS ISLAND, SC 29905-8039
PO BOX 18040, PARRIS ISLAND, SC 29905-8040
PO BOX 18041, PARRIS ISLAND, SC 29905-8041
PO BOX 18042, PARRIS ISLAND, SC 29905-8042
PO BOX 18043, PARRIS ISLAND, SC 29905-8043
PO BOX 18044, PARRIS ISLAND, SC 29905-8044
PO BOX 18045, PARRIS ISLAND, SC 29905-8045
PO BOX 18046, PARRIS ISLAND, SC 29905-8046
PO BOX 18047, PARRIS ISLAND, SC 29905-8047
PO BOX 18048, PARRIS ISLAND, SC 29905-8048
PO BOX 18049, PARRIS ISLAND, SC 29905-8049
PO BOX 18050, PARRIS ISLAND, SC 29905-8050
PO BOX 18051, PARRIS ISLAND, SC 29905-8051
PO BOX 18052, PARRIS ISLAND, SC 29905-8052
PO BOX 18053, PARRIS ISLAND, SC 29905-8053
PO BOX 18054, PARRIS ISLAND, SC 29905-8054
PO BOX 18055, PARRIS ISLAND, SC 29905-8055
PO BOX 18056, PARRIS ISLAND, SC 29905-8056
PO BOX 18057, PARRIS ISLAND, SC 29905-8057
PO BOX 18058, PARRIS ISLAND, SC 29905-8058
PO BOX 18059, PARRIS ISLAND, SC 29905-8059
PO BOX 18060, PARRIS ISLAND, SC 29905-8060
PO BOX 18061, PARRIS ISLAND, SC 29905-8061
PO BOX 18062, PARRIS ISLAND, SC 29905-8062
PO BOX 18063, PARRIS ISLAND, SC 29905-8063
PO BOX 18064, PARRIS ISLAND, SC 29905-8064
PO BOX 18065, PARRIS ISLAND, SC 29905-8065
PO BOX 18066, PARRIS ISLAND, SC 29905-8066
PO BOX 18067, PARRIS ISLAND, SC 29905-8067
PO BOX 18068, PARRIS ISLAND, SC 29905-8068
PO BOX 18069, PARRIS ISLAND, SC 29905-8069
PO BOX 18070, PARRIS ISLAND, SC 29905-8070
PO BOX 18071, PARRIS ISLAND, SC 29905-8071
PO BOX 18072, PARRIS ISLAND, SC 29905-8072
PO BOX 18073, PARRIS ISLAND, SC 29905-8073
PO BOX 18074, PARRIS ISLAND, SC 29905-8074
PO BOX 18075, PARRIS ISLAND, SC 29905-8075
PO BOX 18076, PARRIS ISLAND, SC 29905-8076
PO BOX 18077, PARRIS ISLAND, SC 29905-8077
PO BOX 18078, PARRIS ISLAND, SC 29905-8078
PO BOX 18079, PARRIS ISLAND, SC 29905-8079
PO BOX 18080, PARRIS ISLAND, SC 29905-8080
PO BOX 18081, PARRIS ISLAND, SC 29905-8081
PO BOX 18082, PARRIS ISLAND, SC 29905-8082
PO BOX 18083, PARRIS ISLAND, SC 29905-8083
PO BOX 18084, PARRIS ISLAND, SC 29905-8084
PO BOX 18085, PARRIS ISLAND, SC 29905-8085
PO BOX 18086, PARRIS ISLAND, SC 29905-8086
PO BOX 18087, PARRIS ISLAND, SC 29905-8087
PO BOX 18088, PARRIS ISLAND, SC 29905-8088
PO BOX 18089, PARRIS ISLAND, SC 29905-8089
PO BOX 18090, PARRIS ISLAND, SC 29905-8090
PO BOX 18091, PARRIS ISLAND, SC 29905-8091
PO BOX 18092, PARRIS ISLAND, SC 29905-8092
PO BOX 18093, PARRIS ISLAND, SC 29905-8093
PO BOX 18094, PARRIS ISLAND, SC 29905-8094
PO BOX 18095, PARRIS ISLAND, SC 29905-8095
PO BOX 18096, PARRIS ISLAND, SC 29905-8096
PO BOX 18097, PARRIS ISLAND, SC 29905-8097
PO BOX 18098, PARRIS ISLAND, SC 29905-8098
PO BOX 18099, PARRIS ISLAND, SC 29905-8099
PO BOX 18100, PARRIS ISLAND, SC 29905-8100
PO BOX 18101, PARRIS ISLAND, SC 29905-8101
PO BOX 18102, PARRIS ISLAND, SC 29905-8102
PO BOX 18103, PARRIS ISLAND, SC 29905-8103
PO BOX 18104, PARRIS ISLAND, SC 29905-8104
PO BOX 18105, PARRIS ISLAND, SC 29905-8105
PO BOX 18106, PARRIS ISLAND, SC 29905-8106
PO BOX 18107, PARRIS ISLAND, SC 29905-8107
PO BOX 18108, PARRIS ISLAND, SC 29905-8108
PO BOX 18109, PARRIS ISLAND, SC 29905-8109
PO BOX 18110, PARRIS ISLAND, SC 29905-8110
PO BOX 18111, PARRIS ISLAND, SC 29905-8111
PO BOX 18112, PARRIS ISLAND, SC 29905-8112
PO BOX 18113, PARRIS ISLAND, SC 29905-8113
PO BOX 18114, PARRIS ISLAND, SC 29905-8114
PO BOX 18115, PARRIS ISLAND, SC 29905-8115
PO BOX 18116, PARRIS ISLAND, SC 29905-8116
PO BOX 18117, PARRIS ISLAND, SC 29905-8117
PO BOX 18118, PARRIS ISLAND, SC 29905-8118
PO BOX 18119, PARRIS ISLAND, SC 29905-8119
PO BOX 18120, PARRIS ISLAND, SC 29905-8120
PO BOX 18121, PARRIS ISLAND, SC 29905-8121
PO BOX 18122, PARRIS ISLAND, SC 29905-8122
PO BOX 18123, PARRIS ISLAND, SC 29905-8123
PO BOX 18124, PARRIS ISLAND, SC 29905-8124
PO BOX 18125, PARRIS ISLAND, SC 29905-8125
PO BOX 18126, PARRIS ISLAND, SC 29905-8126
PO BOX 18127, PARRIS ISLAND, SC 29905-8127
PO BOX 18128, PARRIS ISLAND, SC 29905-8128
PO BOX 18129, PARRIS ISLAND, SC 29905-8129
PO BOX 18130, PARRIS ISLAND, SC 29905-8130
PO BOX 18131, PARRIS ISLAND, SC 29905-8131
PO BOX 18132, PARRIS ISLAND, SC 29905-8132
PO BOX 18133, PARRIS ISLAND, SC 29905-8133
PO BOX 18134, PARRIS ISLAND, SC 29905-8134
PO BOX 18135, PARRIS ISLAND, SC 29905-8135
PO BOX 18136, PARRIS ISLAND, SC 29905-8136
PO BOX 18137, PARRIS ISLAND, SC 29905-8137
PO BOX 18138, PARRIS ISLAND, SC 29905-8138
PO BOX 18139, PARRIS ISLAND, SC 29905-8139
PO BOX 18140, PARRIS ISLAND, SC 29905-8140
PO BOX 18141, PARRIS ISLAND, SC 29905-8141
PO BOX 18142, PARRIS ISLAND, SC 29905-8142
PO BOX 18143, PARRIS ISLAND, SC 29905-8143
PO BOX 18144, PARRIS ISLAND, SC 29905-8144
PO BOX 18145, PARRIS ISLAND, SC 29905-8145
PO BOX 18146, PARRIS ISLAND, SC 29905-8146
PO BOX 18147, PARRIS ISLAND, SC 29905-8147
PO BOX 18148, PARRIS ISLAND, SC 29905-8148
PO BOX 18149, PARRIS ISLAND, SC 29905-8149
PO BOX 18150, PARRIS ISLAND, SC 29905-8150
PO BOX 18151, PARRIS ISLAND, SC 29905-8151
PO BOX 18152, PARRIS ISLAND, SC 29905-8152
PO BOX 18153, PARRIS ISLAND, SC 29905-8153
PO BOX 18154, PARRIS ISLAND, SC 29905-8154
PO BOX 18155, PARRIS ISLAND, SC 29905-8155
PO BOX 18156, PARRIS ISLAND, SC 29905-8156
PO BOX 18157, PARRIS ISLAND, SC 29905-8157
PO BOX 18158, PARRIS ISLAND, SC 29905-8158
PO BOX 18159, PARRIS ISLAND, SC 29905-8159
PO BOX 18160, PARRIS ISLAND, SC 29905-8160
PO BOX 18161, PARRIS ISLAND, SC 29905-8161
PO BOX 18162, PARRIS ISLAND, SC 29905-8162
PO BOX 18163, PARRIS ISLAND, SC 29905-8163
PO BOX 18164, PARRIS ISLAND, SC 29905-8164
PO BOX 18165, PARRIS ISLAND, SC 29905-8165
PO BOX 18166, PARRIS ISLAND, SC 29905-8166
PO BOX 18167, PARRIS ISLAND, SC 29905-8167
PO BOX 18168, PARRIS ISLAND, SC 29905-8168
PO BOX 18169, PARRIS ISLAND, SC 29905-8169
PO BOX 18170, PARRIS ISLAND, SC 29905-8170
PO BOX 18171, PARRIS ISLAND, SC 29905-8171
PO BOX 18172, PARRIS ISLAND, SC 29905-8172
PO BOX 18173, PARRIS ISLAND, SC 29905-8173
PO BOX 18174, PARRIS ISLAND, SC 29905-8174
PO BOX 18175, PARRIS ISLAND, SC 29905-8175
PO BOX 18176, PARRIS ISLAND, SC 29905-8176
PO BOX 18177, PARRIS ISLAND, SC 29905-8177
PO BOX 18178, PARRIS ISLAND, SC 29905-8178
PO BOX 18179, PARRIS ISLAND, SC 29905-8179
PO BOX 18180, PARRIS ISLAND, SC 29905-8180
PO BOX 18181, PARRIS ISLAND, SC 29905-8181
PO BOX 18182, PARRIS ISLAND, SC 29905-8182
PO BOX 18183, PARRIS ISLAND, SC 29905-8183
PO BOX 18184, PARRIS ISLAND, SC 29905-8184
PO BOX 18185, PARRIS ISLAND, SC 29905-8185
PO BOX 18186, PARRIS ISLAND, SC 29905-8186
PO BOX 18187, PARRIS ISLAND, SC 29905-8187
PO BOX 18188, PARRIS ISLAND, SC 29905-8188
PO BOX 18189, PARRIS ISLAND, SC 29905-8189
PO BOX 18190, PARRIS ISLAND, SC 29905-8190
PO BOX 18191, PARRIS ISLAND, SC 29905-8191
PO BOX 18192, PARRIS ISLAND, SC 29905-8192
PO BOX 18193, PARRIS ISLAND, SC 29905-8193
PO BOX 18194, PARRIS ISLAND, SC 29905-8194
PO BOX 18195, PARRIS ISLAND, SC 29905-8195
PO BOX 18196, PARRIS ISLAND, SC 29905-8196
PO BOX 18197, PARRIS ISLAND, SC 29905-8197
PO BOX 18198, PARRIS ISLAND, SC 29905-8198
PO BOX 18199, PARRIS ISLAND, SC 29905-8199
PO BOX 18200, PARRIS ISLAND, SC 29905-8200
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