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 161, GRAFTON, ND 58237-0161
PO BOX 162, GRAFTON, ND 58237-0162
PO BOX 163, GRAFTON, ND 58237-0163
PO BOX 164, GRAFTON, ND 58237-0164
PO BOX 165, GRAFTON, ND 58237-0165
PO BOX 166, GRAFTON, ND 58237-0166
PO BOX 167, GRAFTON, ND 58237-0167
PO BOX 168, GRAFTON, ND 58237-0168
PO BOX 169, GRAFTON, ND 58237-0169
PO BOX 170, GRAFTON, ND 58237-0170
PO BOX 171, GRAFTON, ND 58237-0171
PO BOX 172, GRAFTON, ND 58237-0172
PO BOX 173, GRAFTON, ND 58237-0173
PO BOX 174, GRAFTON, ND 58237-0174
PO BOX 175, GRAFTON, ND 58237-0175
PO BOX 176, GRAFTON, ND 58237-0176
PO BOX 177, GRAFTON, ND 58237-0177
PO BOX 178, GRAFTON, ND 58237-0178
PO BOX 179, GRAFTON, ND 58237-0179
PO BOX 180, GRAFTON, ND 58237-0180
PO BOX 181, GRAFTON, ND 58237-0181
PO BOX 182, GRAFTON, ND 58237-0182
PO BOX 183, GRAFTON, ND 58237-0183
PO BOX 184, GRAFTON, ND 58237-0184
PO BOX 185, GRAFTON, ND 58237-0185
PO BOX 186, GRAFTON, ND 58237-0186
PO BOX 187, GRAFTON, ND 58237-0187
PO BOX 188, GRAFTON, ND 58237-0188
PO BOX 189, GRAFTON, ND 58237-0189
PO BOX 190, GRAFTON, ND 58237-0190
PO BOX 191, GRAFTON, ND 58237-0191
PO BOX 192, GRAFTON, ND 58237-0192
PO BOX 193, GRAFTON, ND 58237-0193
PO BOX 194, GRAFTON, ND 58237-0194
PO BOX 195, GRAFTON, ND 58237-0195
PO BOX 196, GRAFTON, ND 58237-0196
PO BOX 197, GRAFTON, ND 58237-0197
PO BOX 198, GRAFTON, ND 58237-0198
PO BOX 199, GRAFTON, ND 58237-0199
PO BOX 200, GRAFTON, ND 58237-0200
PO BOX 201, GRAFTON, ND 58237-0201
PO BOX 202, GRAFTON, ND 58237-0202
PO BOX 203, GRAFTON, ND 58237-0203
PO BOX 204, GRAFTON, ND 58237-0204
PO BOX 205, GRAFTON, ND 58237-0205
PO BOX 206, GRAFTON, ND 58237-0206
PO BOX 207, GRAFTON, ND 58237-0207
PO BOX 208, GRAFTON, ND 58237-0208
PO BOX 209, GRAFTON, ND 58237-0209
PO BOX 210, GRAFTON, ND 58237-0210
PO BOX 211, GRAFTON, ND 58237-0211
PO BOX 212, GRAFTON, ND 58237-0212
PO BOX 213, GRAFTON, ND 58237-0213
PO BOX 214, GRAFTON, ND 58237-0214
PO BOX 215, GRAFTON, ND 58237-0215
PO BOX 216, GRAFTON, ND 58237-0216
PO BOX 217, GRAFTON, ND 58237-0217
PO BOX 218, GRAFTON, ND 58237-0218
PO BOX 219, GRAFTON, ND 58237-0219
PO BOX 220, GRAFTON, ND 58237-0220
PO BOX 221, GRAFTON, ND 58237-0221
PO BOX 222, GRAFTON, ND 58237-0222
PO BOX 223, GRAFTON, ND 58237-0223
PO BOX 224, GRAFTON, ND 58237-0224
PO BOX 225, GRAFTON, ND 58237-0225
PO BOX 226, GRAFTON, ND 58237-0226
PO BOX 227, GRAFTON, ND 58237-0227
PO BOX 228, GRAFTON, ND 58237-0228
PO BOX 229, GRAFTON, ND 58237-0229
PO BOX 230, GRAFTON, ND 58237-0230
PO BOX 231, GRAFTON, ND 58237-0231
PO BOX 232, GRAFTON, ND 58237-0232
PO BOX 233, GRAFTON, ND 58237-0233
PO BOX 234, GRAFTON, ND 58237-0234
PO BOX 235, GRAFTON, ND 58237-0235
PO BOX 236, GRAFTON, ND 58237-0236
PO BOX 237, GRAFTON, ND 58237-0237
PO BOX 238, GRAFTON, ND 58237-0238
PO BOX 239, GRAFTON, ND 58237-0239
PO BOX 240, GRAFTON, ND 58237-0240
PO BOX 241, GRAFTON, ND 58237-0241
PO BOX 242, GRAFTON, ND 58237-0242
PO BOX 243, GRAFTON, ND 58237-0243
PO BOX 244, GRAFTON, ND 58237-0244
PO BOX 245, GRAFTON, ND 58237-0245
PO BOX 246, GRAFTON, ND 58237-0246
PO BOX 247, GRAFTON, ND 58237-0247
PO BOX 248, GRAFTON, ND 58237-0248
PO BOX 249, GRAFTON, ND 58237-0249
PO BOX 250, GRAFTON, ND 58237-0250
PO BOX 251, GRAFTON, ND 58237-0251
PO BOX 252, GRAFTON, ND 58237-0252
PO BOX 253, GRAFTON, ND 58237-0253
PO BOX 254, GRAFTON, ND 58237-0254
PO BOX 255, GRAFTON, ND 58237-0255
PO BOX 256, GRAFTON, ND 58237-0256
PO BOX 257, GRAFTON, ND 58237-0257
PO BOX 258, GRAFTON, ND 58237-0258
PO BOX 259, GRAFTON, ND 58237-0259
PO BOX 260, GRAFTON, ND 58237-0260
PO BOX 261, GRAFTON, ND 58237-0261
PO BOX 262, GRAFTON, ND 58237-0262
PO BOX 263, GRAFTON, ND 58237-0263
PO BOX 264, GRAFTON, ND 58237-0264
PO BOX 265, GRAFTON, ND 58237-0265
PO BOX 266, GRAFTON, ND 58237-0266
PO BOX 267, GRAFTON, ND 58237-0267
PO BOX 268, GRAFTON, ND 58237-0268
PO BOX 269, GRAFTON, ND 58237-0269
PO BOX 270, GRAFTON, ND 58237-0270
PO BOX 271, GRAFTON, ND 58237-0271
PO BOX 272, GRAFTON, ND 58237-0272
PO BOX 273, GRAFTON, ND 58237-0273
PO BOX 274, GRAFTON, ND 58237-0274
PO BOX 275, GRAFTON, ND 58237-0275
PO BOX 276, GRAFTON, ND 58237-0276
PO BOX 277, GRAFTON, ND 58237-0277
PO BOX 278, GRAFTON, ND 58237-0278
PO BOX 279, GRAFTON, ND 58237-0279
PO BOX 280, GRAFTON, ND 58237-0280
PO BOX 281, GRAFTON, ND 58237-0281
PO BOX 282, GRAFTON, ND 58237-0282
PO BOX 283, GRAFTON, ND 58237-0283
PO BOX 284, GRAFTON, ND 58237-0284
PO BOX 285, GRAFTON, ND 58237-0285
PO BOX 286, GRAFTON, ND 58237-0286
PO BOX 287, GRAFTON, ND 58237-0287
PO BOX 288, GRAFTON, ND 58237-0288
PO BOX 289, GRAFTON, ND 58237-0289
PO BOX 290, GRAFTON, ND 58237-0290
PO BOX 291, GRAFTON, ND 58237-0291
PO BOX 292, GRAFTON, ND 58237-0292
PO BOX 293, GRAFTON, ND 58237-0293
PO BOX 294, GRAFTON, ND 58237-0294
PO BOX 295, GRAFTON, ND 58237-0295
PO BOX 296, GRAFTON, ND 58237-0296
PO BOX 297, GRAFTON, ND 58237-0297
PO BOX 298, GRAFTON, ND 58237-0298
PO BOX 299, GRAFTON, ND 58237-0299
PO BOX 300, GRAFTON, ND 58237-0300
PO BOX 301, GRAFTON, ND 58237-0301
PO BOX 302, GRAFTON, ND 58237-0302
PO BOX 303, GRAFTON, ND 58237-0303
PO BOX 304, GRAFTON, ND 58237-0304
PO BOX 305, GRAFTON, ND 58237-0305
PO BOX 306, GRAFTON, ND 58237-0306
PO BOX 307, GRAFTON, ND 58237-0307
PO BOX 308, GRAFTON, ND 58237-0308
PO BOX 309, GRAFTON, ND 58237-0309
PO BOX 310, GRAFTON, ND 58237-0310
PO BOX 311, GRAFTON, ND 58237-0311
PO BOX 312, GRAFTON, ND 58237-0312
PO BOX 313, GRAFTON, ND 58237-0313
PO BOX 314, GRAFTON, ND 58237-0314
PO BOX 315, GRAFTON, ND 58237-0315
PO BOX 316, GRAFTON, ND 58237-0316
PO BOX 317, GRAFTON, ND 58237-0317
PO BOX 318, GRAFTON, ND 58237-0318
PO BOX 319, GRAFTON, ND 58237-0319
PO BOX 320, GRAFTON, ND 58237-0320
PO BOX 321, GRAFTON, ND 58237-0321
PO BOX 322, GRAFTON, ND 58237-0322
PO BOX 323, GRAFTON, ND 58237-0323
PO BOX 324, GRAFTON, ND 58237-0324
PO BOX 325, GRAFTON, ND 58237-0325
PO BOX 326, GRAFTON, ND 58237-0326
PO BOX 327, GRAFTON, ND 58237-0327
PO BOX 328, GRAFTON, ND 58237-0328
PO BOX 329, GRAFTON, ND 58237-0329
PO BOX 330, GRAFTON, ND 58237-0330
PO BOX 331, GRAFTON, ND 58237-0331
PO BOX 332, GRAFTON, ND 58237-0332
PO BOX 333, GRAFTON, ND 58237-0333
PO BOX 334, GRAFTON, ND 58237-0334
PO BOX 335, GRAFTON, ND 58237-0335
PO BOX 336, GRAFTON, ND 58237-0336
PO BOX 337, GRAFTON, ND 58237-0337
PO BOX 338, GRAFTON, ND 58237-0338
PO BOX 339, GRAFTON, ND 58237-0339
PO BOX 340, GRAFTON, ND 58237-0340
PO BOX 341, GRAFTON, ND 58237-0341
PO BOX 342, GRAFTON, ND 58237-0342
PO BOX 343, GRAFTON, ND 58237-0343
PO BOX 344, GRAFTON, ND 58237-0344
PO BOX 345, GRAFTON, ND 58237-0345
PO BOX 346, GRAFTON, ND 58237-0346
PO BOX 347, GRAFTON, ND 58237-0347
PO BOX 348, GRAFTON, ND 58237-0348
PO BOX 349, GRAFTON, ND 58237-0349
PO BOX 350, GRAFTON, ND 58237-0350
PO BOX 351, GRAFTON, ND 58237-0351
PO BOX 352, GRAFTON, ND 58237-0352
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