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 101, HOLLIDAYSBURG, PA 16648-0101
PO BOX 102, HOLLIDAYSBURG, PA 16648-0102
PO BOX 103, HOLLIDAYSBURG, PA 16648-0103
PO BOX 104, HOLLIDAYSBURG, PA 16648-0104
PO BOX 105, HOLLIDAYSBURG, PA 16648-0105
PO BOX 106, HOLLIDAYSBURG, PA 16648-0106
PO BOX 107, HOLLIDAYSBURG, PA 16648-0107
PO BOX 108, HOLLIDAYSBURG, PA 16648-0108
PO BOX 109, HOLLIDAYSBURG, PA 16648-0109
PO BOX 110, HOLLIDAYSBURG, PA 16648-0110
PO BOX 111, HOLLIDAYSBURG, PA 16648-0111
PO BOX 112, HOLLIDAYSBURG, PA 16648-0112
PO BOX 113, HOLLIDAYSBURG, PA 16648-0113
PO BOX 114, HOLLIDAYSBURG, PA 16648-0114
PO BOX 115, HOLLIDAYSBURG, PA 16648-0115
PO BOX 116, HOLLIDAYSBURG, PA 16648-0116
PO BOX 117, HOLLIDAYSBURG, PA 16648-0117
PO BOX 118, HOLLIDAYSBURG, PA 16648-0118
PO BOX 119, HOLLIDAYSBURG, PA 16648-0119
PO BOX 120, HOLLIDAYSBURG, PA 16648-0120
PO BOX 121, HOLLIDAYSBURG, PA 16648-0121
PO BOX 122, HOLLIDAYSBURG, PA 16648-0122
PO BOX 123, HOLLIDAYSBURG, PA 16648-0123
PO BOX 124, HOLLIDAYSBURG, PA 16648-0124
PO BOX 125, HOLLIDAYSBURG, PA 16648-0125
PO BOX 126, HOLLIDAYSBURG, PA 16648-0126
PO BOX 127, HOLLIDAYSBURG, PA 16648-0127
PO BOX 128, HOLLIDAYSBURG, PA 16648-0128
PO BOX 129, HOLLIDAYSBURG, PA 16648-0129
PO BOX 130, HOLLIDAYSBURG, PA 16648-0130
PO BOX 131, HOLLIDAYSBURG, PA 16648-0131
PO BOX 132, HOLLIDAYSBURG, PA 16648-0132
PO BOX 133, HOLLIDAYSBURG, PA 16648-0133
PO BOX 134, HOLLIDAYSBURG, PA 16648-0134
PO BOX 135, HOLLIDAYSBURG, PA 16648-0135
PO BOX 136, HOLLIDAYSBURG, PA 16648-0136
PO BOX 137, HOLLIDAYSBURG, PA 16648-0137
PO BOX 138, HOLLIDAYSBURG, PA 16648-0138
PO BOX 139, HOLLIDAYSBURG, PA 16648-0139
PO BOX 140, HOLLIDAYSBURG, PA 16648-0140
PO BOX 141, HOLLIDAYSBURG, PA 16648-0141
PO BOX 142, HOLLIDAYSBURG, PA 16648-0142
PO BOX 143, HOLLIDAYSBURG, PA 16648-0143
PO BOX 144, HOLLIDAYSBURG, PA 16648-0144
PO BOX 145, HOLLIDAYSBURG, PA 16648-0145
PO BOX 146, HOLLIDAYSBURG, PA 16648-0146
PO BOX 147, HOLLIDAYSBURG, PA 16648-0147
PO BOX 148, HOLLIDAYSBURG, PA 16648-0148
PO BOX 149, HOLLIDAYSBURG, PA 16648-0149
PO BOX 150, HOLLIDAYSBURG, PA 16648-0150
PO BOX 151, HOLLIDAYSBURG, PA 16648-0151
PO BOX 152, HOLLIDAYSBURG, PA 16648-0152
PO BOX 153, HOLLIDAYSBURG, PA 16648-0153
PO BOX 154, HOLLIDAYSBURG, PA 16648-0154
PO BOX 155, HOLLIDAYSBURG, PA 16648-0155
PO BOX 156, HOLLIDAYSBURG, PA 16648-0156
PO BOX 157, HOLLIDAYSBURG, PA 16648-0157
PO BOX 158, HOLLIDAYSBURG, PA 16648-0158
PO BOX 159, HOLLIDAYSBURG, PA 16648-0159
PO BOX 160, HOLLIDAYSBURG, PA 16648-0160
PO BOX 161, HOLLIDAYSBURG, PA 16648-0161
PO BOX 162, HOLLIDAYSBURG, PA 16648-0162
PO BOX 163, HOLLIDAYSBURG, PA 16648-0163
PO BOX 164, HOLLIDAYSBURG, PA 16648-0164
PO BOX 165, HOLLIDAYSBURG, PA 16648-0165
PO BOX 166, HOLLIDAYSBURG, PA 16648-0166
PO BOX 167, HOLLIDAYSBURG, PA 16648-0167
PO BOX 168, HOLLIDAYSBURG, PA 16648-0168
PO BOX 169, HOLLIDAYSBURG, PA 16648-0169
PO BOX 170, HOLLIDAYSBURG, PA 16648-0170
PO BOX 171, HOLLIDAYSBURG, PA 16648-0171
PO BOX 172, HOLLIDAYSBURG, PA 16648-0172
PO BOX 173, HOLLIDAYSBURG, PA 16648-0173
PO BOX 174, HOLLIDAYSBURG, PA 16648-0174
PO BOX 175, HOLLIDAYSBURG, PA 16648-0175
PO BOX 176, HOLLIDAYSBURG, PA 16648-0176
PO BOX 177, HOLLIDAYSBURG, PA 16648-0177
PO BOX 178, HOLLIDAYSBURG, PA 16648-0178
PO BOX 179, HOLLIDAYSBURG, PA 16648-0179
PO BOX 180, HOLLIDAYSBURG, PA 16648-0180
PO BOX 181, HOLLIDAYSBURG, PA 16648-0181
PO BOX 182, HOLLIDAYSBURG, PA 16648-0182
PO BOX 183, HOLLIDAYSBURG, PA 16648-0183
PO BOX 184, HOLLIDAYSBURG, PA 16648-0184
PO BOX 185, HOLLIDAYSBURG, PA 16648-0185
PO BOX 186, HOLLIDAYSBURG, PA 16648-0186
PO BOX 187, HOLLIDAYSBURG, PA 16648-0187
PO BOX 188, HOLLIDAYSBURG, PA 16648-0188
PO BOX 189, HOLLIDAYSBURG, PA 16648-0189
PO BOX 190, HOLLIDAYSBURG, PA 16648-0190
PO BOX 191, HOLLIDAYSBURG, PA 16648-0191
PO BOX 192, HOLLIDAYSBURG, PA 16648-0192
PO BOX 193, HOLLIDAYSBURG, PA 16648-0193
PO BOX 194, HOLLIDAYSBURG, PA 16648-0194
PO BOX 195, HOLLIDAYSBURG, PA 16648-0195
PO BOX 196, HOLLIDAYSBURG, PA 16648-0196
PO BOX 197, HOLLIDAYSBURG, PA 16648-0197
PO BOX 198, HOLLIDAYSBURG, PA 16648-0198
PO BOX 199, HOLLIDAYSBURG, PA 16648-0199
PO BOX 200, HOLLIDAYSBURG, PA 16648-0200
PO BOX 201, HOLLIDAYSBURG, PA 16648-0201
PO BOX 202, HOLLIDAYSBURG, PA 16648-0202
PO BOX 203, HOLLIDAYSBURG, PA 16648-0203
PO BOX 204, HOLLIDAYSBURG, PA 16648-0204
PO BOX 205, HOLLIDAYSBURG, PA 16648-0205
PO BOX 206, HOLLIDAYSBURG, PA 16648-0206
PO BOX 207, HOLLIDAYSBURG, PA 16648-0207
PO BOX 208, HOLLIDAYSBURG, PA 16648-0208
PO BOX 209, HOLLIDAYSBURG, PA 16648-0209
PO BOX 210, HOLLIDAYSBURG, PA 16648-0210
PO BOX 211, HOLLIDAYSBURG, PA 16648-0211
PO BOX 212, HOLLIDAYSBURG, PA 16648-0212
PO BOX 213, HOLLIDAYSBURG, PA 16648-0213
PO BOX 214, HOLLIDAYSBURG, PA 16648-0214
PO BOX 215, HOLLIDAYSBURG, PA 16648-0215
PO BOX 216, HOLLIDAYSBURG, PA 16648-0216
PO BOX 217, HOLLIDAYSBURG, PA 16648-0217
PO BOX 218, HOLLIDAYSBURG, PA 16648-0218
PO BOX 219, HOLLIDAYSBURG, PA 16648-0219
PO BOX 220, HOLLIDAYSBURG, PA 16648-0220
PO BOX 221, HOLLIDAYSBURG, PA 16648-0221
PO BOX 222, HOLLIDAYSBURG, PA 16648-0222
PO BOX 223, HOLLIDAYSBURG, PA 16648-0223
PO BOX 224, HOLLIDAYSBURG, PA 16648-0224
PO BOX 225, HOLLIDAYSBURG, PA 16648-0225
PO BOX 226, HOLLIDAYSBURG, PA 16648-0226
PO BOX 227, HOLLIDAYSBURG, PA 16648-0227
PO BOX 228, HOLLIDAYSBURG, PA 16648-0228
PO BOX 229, HOLLIDAYSBURG, PA 16648-0229
PO BOX 230, HOLLIDAYSBURG, PA 16648-0230
PO BOX 231, HOLLIDAYSBURG, PA 16648-0231
PO BOX 232, HOLLIDAYSBURG, PA 16648-0232
PO BOX 233, HOLLIDAYSBURG, PA 16648-0233
PO BOX 234, HOLLIDAYSBURG, PA 16648-0234
PO BOX 235, HOLLIDAYSBURG, PA 16648-0235
PO BOX 236, HOLLIDAYSBURG, PA 16648-0236
PO BOX 237, HOLLIDAYSBURG, PA 16648-0237
PO BOX 238, HOLLIDAYSBURG, PA 16648-0238
PO BOX 239, HOLLIDAYSBURG, PA 16648-0239
PO BOX 240, HOLLIDAYSBURG, PA 16648-0240
PO BOX 241, HOLLIDAYSBURG, PA 16648-0241
PO BOX 242, HOLLIDAYSBURG, PA 16648-0242
PO BOX 243, HOLLIDAYSBURG, PA 16648-0243
PO BOX 244, HOLLIDAYSBURG, PA 16648-0244
PO BOX 245, HOLLIDAYSBURG, PA 16648-0245
PO BOX 246, HOLLIDAYSBURG, PA 16648-0246
PO BOX 247, HOLLIDAYSBURG, PA 16648-0247
PO BOX 248, HOLLIDAYSBURG, PA 16648-0248
PO BOX 249, HOLLIDAYSBURG, PA 16648-0249
PO BOX 250, HOLLIDAYSBURG, PA 16648-0250
PO BOX 251, HOLLIDAYSBURG, PA 16648-0251
PO BOX 252, HOLLIDAYSBURG, PA 16648-0252
PO BOX 253, HOLLIDAYSBURG, PA 16648-0253
PO BOX 254, HOLLIDAYSBURG, PA 16648-0254
PO BOX 255, HOLLIDAYSBURG, PA 16648-0255
PO BOX 256, HOLLIDAYSBURG, PA 16648-0256
PO BOX 257, HOLLIDAYSBURG, PA 16648-0257
PO BOX 258, HOLLIDAYSBURG, PA 16648-0258
PO BOX 259, HOLLIDAYSBURG, PA 16648-0259
PO BOX 260, HOLLIDAYSBURG, PA 16648-0260
PO BOX 261, HOLLIDAYSBURG, PA 16648-0261
PO BOX 262, HOLLIDAYSBURG, PA 16648-0262
PO BOX 263, HOLLIDAYSBURG, PA 16648-0263
PO BOX 264, HOLLIDAYSBURG, PA 16648-0264
PO BOX 265, HOLLIDAYSBURG, PA 16648-0265
PO BOX 266, HOLLIDAYSBURG, PA 16648-0266
PO BOX 267, HOLLIDAYSBURG, PA 16648-0267
PO BOX 268, HOLLIDAYSBURG, PA 16648-0268
PO BOX 269, HOLLIDAYSBURG, PA 16648-0269
PO BOX 270, HOLLIDAYSBURG, PA 16648-0270
PO BOX 271, HOLLIDAYSBURG, PA 16648-0271
PO BOX 272, HOLLIDAYSBURG, PA 16648-0272
PO BOX 273, HOLLIDAYSBURG, PA 16648-0273
PO BOX 274, HOLLIDAYSBURG, PA 16648-0274
PO BOX 275, HOLLIDAYSBURG, PA 16648-0275
PO BOX 276, HOLLIDAYSBURG, PA 16648-0276
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