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 80141, VALLEY FORGE, PA 19484-0141
PO BOX 80142, VALLEY FORGE, PA 19484-0142
PO BOX 80143, VALLEY FORGE, PA 19484-0143
PO BOX 80144, VALLEY FORGE, PA 19484-0144
PO BOX 80145, VALLEY FORGE, PA 19484-0145
PO BOX 80146, VALLEY FORGE, PA 19484-0146
PO BOX 80147, VALLEY FORGE, PA 19484-0147
PO BOX 80148, VALLEY FORGE, PA 19484-0148
PO BOX 80149, VALLEY FORGE, PA 19484-0149
PO BOX 80150, VALLEY FORGE, PA 19484-0150
PO BOX 80151, VALLEY FORGE, PA 19484-0151
PO BOX 80152, VALLEY FORGE, PA 19484-0152
PO BOX 80153, VALLEY FORGE, PA 19484-0153
PO BOX 80154, VALLEY FORGE, PA 19484-0154
PO BOX 80155, VALLEY FORGE, PA 19484-0155
PO BOX 80156, VALLEY FORGE, PA 19484-0156
PO BOX 80157, VALLEY FORGE, PA 19484-0157
PO BOX 80158, VALLEY FORGE, PA 19484-0158
PO BOX 80159, VALLEY FORGE, PA 19484-0159
PO BOX 80160, VALLEY FORGE, PA 19484-0160
PO BOX 80161, VALLEY FORGE, PA 19484-0161
PO BOX 80162, VALLEY FORGE, PA 19484-0162
PO BOX 80163, VALLEY FORGE, PA 19484-0163
PO BOX 80164, VALLEY FORGE, PA 19484-0164
PO BOX 80165, VALLEY FORGE, PA 19484-0165
PO BOX 80166, VALLEY FORGE, PA 19484-0166
PO BOX 80167, VALLEY FORGE, PA 19484-0167
PO BOX 80168, VALLEY FORGE, PA 19484-0168
PO BOX 80169, VALLEY FORGE, PA 19484-0169
PO BOX 80170, VALLEY FORGE, PA 19484-0170
PO BOX 80171, VALLEY FORGE, PA 19484-0171
PO BOX 80172, VALLEY FORGE, PA 19484-0172
PO BOX 80173, VALLEY FORGE, PA 19484-0173
PO BOX 80174, VALLEY FORGE, PA 19484-0174
PO BOX 80175, VALLEY FORGE, PA 19484-0175
PO BOX 80176, VALLEY FORGE, PA 19484-0176
PO BOX 80177, VALLEY FORGE, PA 19484-0177
PO BOX 80178, VALLEY FORGE, PA 19484-0178
PO BOX 80179, VALLEY FORGE, PA 19484-0179
PO BOX 80180, VALLEY FORGE, PA 19484-0180
PO BOX 80181, VALLEY FORGE, PA 19484-0181
PO BOX 80182, VALLEY FORGE, PA 19484-0182
PO BOX 80183, VALLEY FORGE, PA 19484-0183
PO BOX 80184, VALLEY FORGE, PA 19484-0184
PO BOX 80185, VALLEY FORGE, PA 19484-0185
PO BOX 80186, VALLEY FORGE, PA 19484-0186
PO BOX 80187, VALLEY FORGE, PA 19484-0187
PO BOX 80188, VALLEY FORGE, PA 19484-0188
PO BOX 80189, VALLEY FORGE, PA 19484-0189
PO BOX 80190, VALLEY FORGE, PA 19484-0190
PO BOX 80191, VALLEY FORGE, PA 19484-0191
PO BOX 80192, VALLEY FORGE, PA 19484-0192
PO BOX 80193, VALLEY FORGE, PA 19484-0193
PO BOX 80194, VALLEY FORGE, PA 19484-0194
PO BOX 80195, VALLEY FORGE, PA 19484-0195
PO BOX 80196, VALLEY FORGE, PA 19484-0196
PO BOX 80197, VALLEY FORGE, PA 19484-0197
PO BOX 80198, VALLEY FORGE, PA 19484-0198
PO BOX 80199, VALLEY FORGE, PA 19484-0199
PO BOX 80200, VALLEY FORGE, PA 19484-0200
PO BOX 80201, VALLEY FORGE, PA 19484-0201
PO BOX 80202, VALLEY FORGE, PA 19484-0202
PO BOX 80203, VALLEY FORGE, PA 19484-0203
PO BOX 80204, VALLEY FORGE, PA 19484-0204
PO BOX 80205, VALLEY FORGE, PA 19484-0205
PO BOX 80206, VALLEY FORGE, PA 19484-0206
PO BOX 80207, VALLEY FORGE, PA 19484-0207
PO BOX 80208, VALLEY FORGE, PA 19484-0208
PO BOX 80209, VALLEY FORGE, PA 19484-0209
PO BOX 80210, VALLEY FORGE, PA 19484-0210
PO BOX 80211, VALLEY FORGE, PA 19484-0211
PO BOX 80212, VALLEY FORGE, PA 19484-0212
PO BOX 80213, VALLEY FORGE, PA 19484-0213
PO BOX 80214, VALLEY FORGE, PA 19484-0214
PO BOX 80215, VALLEY FORGE, PA 19484-0215
PO BOX 80216, VALLEY FORGE, PA 19484-0216
PO BOX 80217, VALLEY FORGE, PA 19484-0217
PO BOX 80218, VALLEY FORGE, PA 19484-0218
PO BOX 80219, VALLEY FORGE, PA 19484-0219
PO BOX 80220, VALLEY FORGE, PA 19484-0220
PO BOX 80221, VALLEY FORGE, PA 19484-0221
PO BOX 80222, VALLEY FORGE, PA 19484-0222
PO BOX 80223, VALLEY FORGE, PA 19484-0223
PO BOX 80224, VALLEY FORGE, PA 19484-0224
PO BOX 80225, VALLEY FORGE, PA 19484-0225
PO BOX 80226, VALLEY FORGE, PA 19484-0226
PO BOX 80227, VALLEY FORGE, PA 19484-0227
PO BOX 80228, VALLEY FORGE, PA 19484-0228
PO BOX 80229, VALLEY FORGE, PA 19484-0229
PO BOX 80230, VALLEY FORGE, PA 19484-0230
PO BOX 80231, VALLEY FORGE, PA 19484-0231
PO BOX 80232, VALLEY FORGE, PA 19484-0232
PO BOX 80233, VALLEY FORGE, PA 19484-0233
PO BOX 80234, VALLEY FORGE, PA 19484-0234
PO BOX 80235, VALLEY FORGE, PA 19484-0235
PO BOX 80236, VALLEY FORGE, PA 19484-0236
PO BOX 80237, VALLEY FORGE, PA 19484-0237
PO BOX 80238, VALLEY FORGE, PA 19484-0238
PO BOX 80239, VALLEY FORGE, PA 19484-0239
PO BOX 80240, VALLEY FORGE, PA 19484-0240
PO BOX 80241, VALLEY FORGE, PA 19484-0241
PO BOX 80242, VALLEY FORGE, PA 19484-0242
PO BOX 80243, VALLEY FORGE, PA 19484-0243
PO BOX 80244, VALLEY FORGE, PA 19484-0244
PO BOX 80245, VALLEY FORGE, PA 19484-0245
PO BOX 80246, VALLEY FORGE, PA 19484-0246
PO BOX 80247, VALLEY FORGE, PA 19484-0247
PO BOX 80248, VALLEY FORGE, PA 19484-0248
PO BOX 80249, VALLEY FORGE, PA 19484-0249
PO BOX 80250, VALLEY FORGE, PA 19484-0250
PO BOX 80251, VALLEY FORGE, PA 19484-0251
PO BOX 80252, VALLEY FORGE, PA 19484-0252
PO BOX 80253, VALLEY FORGE, PA 19484-0253
PO BOX 80254, VALLEY FORGE, PA 19484-0254
PO BOX 80255, VALLEY FORGE, PA 19484-0255
PO BOX 80256, VALLEY FORGE, PA 19484-0256
PO BOX 80257, VALLEY FORGE, PA 19484-0257
PO BOX 80258, VALLEY FORGE, PA 19484-0258
PO BOX 80259, VALLEY FORGE, PA 19484-0259
PO BOX 80260, VALLEY FORGE, PA 19484-0260
PO BOX 80261, VALLEY FORGE, PA 19484-0261
PO BOX 80262, VALLEY FORGE, PA 19484-0262
PO BOX 80263, VALLEY FORGE, PA 19484-0263
PO BOX 80264, VALLEY FORGE, PA 19484-0264
PO BOX 80265, VALLEY FORGE, PA 19484-0265
PO BOX 80266, VALLEY FORGE, PA 19484-0266
PO BOX 80267, VALLEY FORGE, PA 19484-0267
PO BOX 80268, VALLEY FORGE, PA 19484-0268
PO BOX 80269, VALLEY FORGE, PA 19484-0269
PO BOX 80270, VALLEY FORGE, PA 19484-0270
PO BOX 80271, VALLEY FORGE, PA 19484-0271
PO BOX 80272, VALLEY FORGE, PA 19484-0272
PO BOX 80273, VALLEY FORGE, PA 19484-0273
PO BOX 80274, VALLEY FORGE, PA 19484-0274
PO BOX 80275, VALLEY FORGE, PA 19484-0275
PO BOX 80276, VALLEY FORGE, PA 19484-0276
PO BOX 80277, VALLEY FORGE, PA 19484-0277
PO BOX 80278, VALLEY FORGE, PA 19484-0278
PO BOX 80279, VALLEY FORGE, PA 19484-0279
PO BOX 80280, VALLEY FORGE, PA 19484-0280
PO BOX 80281, VALLEY FORGE, PA 19484-0281
PO BOX 80282, VALLEY FORGE, PA 19484-0282
PO BOX 80283, VALLEY FORGE, PA 19484-0283
PO BOX 80284, VALLEY FORGE, PA 19484-0284
PO BOX 80285, VALLEY FORGE, PA 19484-0285
PO BOX 80286, VALLEY FORGE, PA 19484-0286
PO BOX 80287, VALLEY FORGE, PA 19484-0287
PO BOX 80288, VALLEY FORGE, PA 19484-0288
PO BOX 80289, VALLEY FORGE, PA 19484-0289
PO BOX 80290, VALLEY FORGE, PA 19484-0290
PO BOX 80291, VALLEY FORGE, PA 19484-0291
PO BOX 80292, VALLEY FORGE, PA 19484-0292
PO BOX 80293, VALLEY FORGE, PA 19484-0293
PO BOX 80294, VALLEY FORGE, PA 19484-0294
PO BOX 80295, VALLEY FORGE, PA 19484-0295
PO BOX 80296, VALLEY FORGE, PA 19484-0296
PO BOX 80297, VALLEY FORGE, PA 19484-0297
PO BOX 80298, VALLEY FORGE, PA 19484-0298
PO BOX 80299, VALLEY FORGE, PA 19484-0299
PO BOX 80300, VALLEY FORGE, PA 19484-0300
PO BOX 80301, VALLEY FORGE, PA 19484-0301
PO BOX 80302, VALLEY FORGE, PA 19484-0302
PO BOX 80303, VALLEY FORGE, PA 19484-0303
PO BOX 80304, VALLEY FORGE, PA 19484-0304
PO BOX 80305, VALLEY FORGE, PA 19484-0305
PO BOX 80306, VALLEY FORGE, PA 19484-0306
PO BOX 80307, VALLEY FORGE, PA 19484-0307
PO BOX 80308, VALLEY FORGE, PA 19484-0308
PO BOX 80309, VALLEY FORGE, PA 19484-0309
PO BOX 80310, VALLEY FORGE, PA 19484-0310
PO BOX 80311, VALLEY FORGE, PA 19484-0311
PO BOX 80312, VALLEY FORGE, PA 19484-0312
PO BOX 80313, VALLEY FORGE, PA 19484-0313
PO BOX 80314, VALLEY FORGE, PA 19484-0314
PO BOX 80315, VALLEY FORGE, PA 19484-0315
PO BOX 80316, VALLEY FORGE, PA 19484-0316
PO BOX 80317, VALLEY FORGE, PA 19484-0317
PO BOX 80318, VALLEY FORGE, PA 19484-0318
PO BOX 80319, VALLEY FORGE, PA 19484-0319
PO BOX 80320, VALLEY FORGE, PA 19484-0320
PO BOX 80321, VALLEY FORGE, PA 19484-0321
PO BOX 80322, VALLEY FORGE, PA 19484-0322
PO BOX 80323, VALLEY FORGE, PA 19484-0323
PO BOX 80324, VALLEY FORGE, PA 19484-0324
PO BOX 80325, VALLEY FORGE, PA 19484-0325
PO BOX 80326, VALLEY FORGE, PA 19484-0326
PO BOX 80327, VALLEY FORGE, PA 19484-0327
PO BOX 80328, VALLEY FORGE, PA 19484-0328
PO BOX 80329, VALLEY FORGE, PA 19484-0329
PO BOX 80330, VALLEY FORGE, PA 19484-0330
PO BOX 80331, VALLEY FORGE, PA 19484-0331
PO BOX 80332, VALLEY FORGE, PA 19484-0332
PO BOX 80333, VALLEY FORGE, PA 19484-0333
PO BOX 80334, VALLEY FORGE, PA 19484-0334
PO BOX 80335, VALLEY FORGE, PA 19484-0335
PO BOX 80336, VALLEY FORGE, PA 19484-0336
PO BOX 80337, VALLEY FORGE, PA 19484-0337
PO BOX 80338, VALLEY FORGE, PA 19484-0338
PO BOX 80339, VALLEY FORGE, PA 19484-0339
PO BOX 80340, VALLEY FORGE, PA 19484-0340
PO BOX 80341, VALLEY FORGE, PA 19484-0341
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