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 120, FAWN GROVE, PA 17321-0120
PO BOX 121, FAWN GROVE, PA 17321-0121
PO BOX 122, FAWN GROVE, PA 17321-0122
PO BOX 123, FAWN GROVE, PA 17321-0123
PO BOX 124, FAWN GROVE, PA 17321-0124
PO BOX 125, FAWN GROVE, PA 17321-0125
PO BOX 126, FAWN GROVE, PA 17321-0126
PO BOX 127, FAWN GROVE, PA 17321-0127
PO BOX 128, FAWN GROVE, PA 17321-0128
PO BOX 129, FAWN GROVE, PA 17321-0129
PO BOX 130, FAWN GROVE, PA 17321-0130
PO BOX 131, FAWN GROVE, PA 17321-0131
PO BOX 132, FAWN GROVE, PA 17321-0132
PO BOX 133, FAWN GROVE, PA 17321-0133
PO BOX 134, FAWN GROVE, PA 17321-0134
PO BOX 135, FAWN GROVE, PA 17321-0135
PO BOX 136, FAWN GROVE, PA 17321-0136
PO BOX 137, FAWN GROVE, PA 17321-0137
PO BOX 138, FAWN GROVE, PA 17321-0138
PO BOX 139, FAWN GROVE, PA 17321-0139
PO BOX 140, FAWN GROVE, PA 17321-0140
PO BOX 141, FAWN GROVE, PA 17321-0141
PO BOX 142, FAWN GROVE, PA 17321-0142
PO BOX 143, FAWN GROVE, PA 17321-0143
PO BOX 144, FAWN GROVE, PA 17321-0144
PO BOX 145, FAWN GROVE, PA 17321-0145
PO BOX 146, FAWN GROVE, PA 17321-0146
PO BOX 147, FAWN GROVE, PA 17321-0147
PO BOX 148, FAWN GROVE, PA 17321-0148
PO BOX 149, FAWN GROVE, PA 17321-0149
PO BOX 150, FAWN GROVE, PA 17321-0150
PO BOX 151, FAWN GROVE, PA 17321-0151
PO BOX 152, FAWN GROVE, PA 17321-0152
PO BOX 153, FAWN GROVE, PA 17321-0153
PO BOX 154, FAWN GROVE, PA 17321-0154
PO BOX 155, FAWN GROVE, PA 17321-0155
PO BOX 156, FAWN GROVE, PA 17321-0156
PO BOX 157, FAWN GROVE, PA 17321-0157
PO BOX 158, FAWN GROVE, PA 17321-0158
PO BOX 159, FAWN GROVE, PA 17321-0159
PO BOX 160, FAWN GROVE, PA 17321-0160
PO BOX 161, FAWN GROVE, PA 17321-0161
PO BOX 162, FAWN GROVE, PA 17321-0162
PO BOX 163, FAWN GROVE, PA 17321-0163
PO BOX 164, FAWN GROVE, PA 17321-0164
PO BOX 165, FAWN GROVE, PA 17321-0165
PO BOX 166, FAWN GROVE, PA 17321-0166
PO BOX 167, FAWN GROVE, PA 17321-0167
PO BOX 168, FAWN GROVE, PA 17321-0168
PO BOX 169, FAWN GROVE, PA 17321-0169
PO BOX 170, FAWN GROVE, PA 17321-0170
PO BOX 171, FAWN GROVE, PA 17321-0171
PO BOX 172, FAWN GROVE, PA 17321-0172
PO BOX 173, FAWN GROVE, PA 17321-0173
PO BOX 174, FAWN GROVE, PA 17321-0174
PO BOX 175, FAWN GROVE, PA 17321-0175
PO BOX 176, FAWN GROVE, PA 17321-0176
PO BOX 177, FAWN GROVE, PA 17321-0177
PO BOX 178, FAWN GROVE, PA 17321-0178
PO BOX 179, FAWN GROVE, PA 17321-0179
PO BOX 180, FAWN GROVE, PA 17321-0180
PO BOX 181, FAWN GROVE, PA 17321-0181
PO BOX 182, FAWN GROVE, PA 17321-0182
PO BOX 183, FAWN GROVE, PA 17321-0183
PO BOX 184, FAWN GROVE, PA 17321-0184
PO BOX 185, FAWN GROVE, PA 17321-0185
PO BOX 186, FAWN GROVE, PA 17321-0186
PO BOX 187, FAWN GROVE, PA 17321-0187
PO BOX 188, FAWN GROVE, PA 17321-0188
PO BOX 189, FAWN GROVE, PA 17321-0189
PO BOX 190, FAWN GROVE, PA 17321-0190
PO BOX 191, FAWN GROVE, PA 17321-0191
PO BOX 192, FAWN GROVE, PA 17321-0192
PO BOX 193, FAWN GROVE, PA 17321-0193
PO BOX 194, FAWN GROVE, PA 17321-0194
PO BOX 195, FAWN GROVE, PA 17321-0195
PO BOX 196, FAWN GROVE, PA 17321-0196
PO BOX 197, FAWN GROVE, PA 17321-0197
PO BOX 198, FAWN GROVE, PA 17321-0198
PO BOX 199, FAWN GROVE, PA 17321-0199
PO BOX 200, FAWN GROVE, PA 17321-0200
PO BOX 201, FAWN GROVE, PA 17321-0201
PO BOX 202, FAWN GROVE, PA 17321-0202
PO BOX 203, FAWN GROVE, PA 17321-0203
PO BOX 204, FAWN GROVE, PA 17321-0204
PO BOX 205, FAWN GROVE, PA 17321-0205
PO BOX 206, FAWN GROVE, PA 17321-0206
PO BOX 207, FAWN GROVE, PA 17321-0207
PO BOX 208, FAWN GROVE, PA 17321-0208
PO BOX 209, FAWN GROVE, PA 17321-0209
PO BOX 210, FAWN GROVE, PA 17321-0210
PO BOX 211, FAWN GROVE, PA 17321-0211
PO BOX 212, FAWN GROVE, PA 17321-0212
PO BOX 213, FAWN GROVE, PA 17321-0213
PO BOX 214, FAWN GROVE, PA 17321-0214
PO BOX 215, FAWN GROVE, PA 17321-0215
PO BOX 216, FAWN GROVE, PA 17321-0216
PO BOX 217, FAWN GROVE, PA 17321-0217
PO BOX 218, FAWN GROVE, PA 17321-0218
PO BOX 219, FAWN GROVE, PA 17321-0219
PO BOX 220, FAWN GROVE, PA 17321-0220
PO BOX 221, FAWN GROVE, PA 17321-0221
PO BOX 222, FAWN GROVE, PA 17321-0222
PO BOX 223, FAWN GROVE, PA 17321-0223
PO BOX 224, FAWN GROVE, PA 17321-0224
PO BOX 225, FAWN GROVE, PA 17321-0225
PO BOX 226, FAWN GROVE, PA 17321-0226
PO BOX 227, FAWN GROVE, PA 17321-0227
PO BOX 228, FAWN GROVE, PA 17321-0228
PO BOX 229, FAWN GROVE, PA 17321-0229
PO BOX 230, FAWN GROVE, PA 17321-0230
PO BOX 231, FAWN GROVE, PA 17321-0231
PO BOX 232, FAWN GROVE, PA 17321-0232
PO BOX 233, FAWN GROVE, PA 17321-0233
PO BOX 234, FAWN GROVE, PA 17321-0234
PO BOX 235, FAWN GROVE, PA 17321-0235
PO BOX 236, FAWN GROVE, PA 17321-0236
PO BOX 237, FAWN GROVE, PA 17321-0237
PO BOX 238, FAWN GROVE, PA 17321-0238
PO BOX 239, FAWN GROVE, PA 17321-0239
PO BOX 240, FAWN GROVE, PA 17321-0240
PO BOX 241, FAWN GROVE, PA 17321-0241
PO BOX 242, FAWN GROVE, PA 17321-0242
PO BOX 243, FAWN GROVE, PA 17321-0243
PO BOX 244, FAWN GROVE, PA 17321-0244
PO BOX 245, FAWN GROVE, PA 17321-0245
PO BOX 246, FAWN GROVE, PA 17321-0246
PO BOX 247, FAWN GROVE, PA 17321-0247
PO BOX 248, FAWN GROVE, PA 17321-0248
PO BOX 249, FAWN GROVE, PA 17321-0249
PO BOX 250, FAWN GROVE, PA 17321-0250
PO BOX 251, FAWN GROVE, PA 17321-0251
PO BOX 252, FAWN GROVE, PA 17321-0252
PO BOX 253, FAWN GROVE, PA 17321-0253
PO BOX 254, FAWN GROVE, PA 17321-0254
PO BOX 255, FAWN GROVE, PA 17321-0255
PO BOX 256, FAWN GROVE, PA 17321-0256
PO BOX 257, FAWN GROVE, PA 17321-0257
PO BOX 258, FAWN GROVE, PA 17321-0258
PO BOX 259, FAWN GROVE, PA 17321-0259
PO BOX 260, FAWN GROVE, PA 17321-0260
PO BOX 261, FAWN GROVE, PA 17321-0261
PO BOX 262, FAWN GROVE, PA 17321-0262
PO BOX 263, FAWN GROVE, PA 17321-0263
PO BOX 264, FAWN GROVE, PA 17321-0264
PO BOX 265, FAWN GROVE, PA 17321-0265
PO BOX 266, FAWN GROVE, PA 17321-0266
PO BOX 267, FAWN GROVE, PA 17321-0267
PO BOX 268, FAWN GROVE, PA 17321-0268
PO BOX 269, FAWN GROVE, PA 17321-0269
PO BOX 270, FAWN GROVE, PA 17321-0270
PO BOX 271, FAWN GROVE, PA 17321-0271
PO BOX 272, FAWN GROVE, PA 17321-0272
PO BOX 273, FAWN GROVE, PA 17321-0273
PO BOX 274, FAWN GROVE, PA 17321-0274
PO BOX 275, FAWN GROVE, PA 17321-0275
PO BOX 276, FAWN GROVE, PA 17321-0276
PO BOX 277, FAWN GROVE, PA 17321-0277
PO BOX 278, FAWN GROVE, PA 17321-0278
PO BOX 279, FAWN GROVE, PA 17321-0279
PO BOX 280, FAWN GROVE, PA 17321-0280
PO BOX 281, FAWN GROVE, PA 17321-0281
PO BOX 282, FAWN GROVE, PA 17321-0282
PO BOX 283, FAWN GROVE, PA 17321-0283
PO BOX 284, FAWN GROVE, PA 17321-0284
PO BOX 285, FAWN GROVE, PA 17321-0285
PO BOX 286, FAWN GROVE, PA 17321-0286
PO BOX 287, FAWN GROVE, PA 17321-0287