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 201, COLUMBUS, MS 39703-0201
PO BOX 202, COLUMBUS, MS 39703-0202
PO BOX 203, COLUMBUS, MS 39703-0203
PO BOX 204, COLUMBUS, MS 39703-0204
PO BOX 205, COLUMBUS, MS 39703-0205
PO BOX 206, COLUMBUS, MS 39703-0206
PO BOX 207, COLUMBUS, MS 39703-0207
PO BOX 208, COLUMBUS, MS 39703-0208
PO BOX 209, COLUMBUS, MS 39703-0209
PO BOX 210, COLUMBUS, MS 39703-0210
PO BOX 211, COLUMBUS, MS 39703-0211
PO BOX 212, COLUMBUS, MS 39703-0212
PO BOX 213, COLUMBUS, MS 39703-0213
PO BOX 214, COLUMBUS, MS 39703-0214
PO BOX 215, COLUMBUS, MS 39703-0215
PO BOX 216, COLUMBUS, MS 39703-0216
PO BOX 217, COLUMBUS, MS 39703-0217
PO BOX 218, COLUMBUS, MS 39703-0218
PO BOX 219, COLUMBUS, MS 39703-0219
PO BOX 220, COLUMBUS, MS 39703-0220
PO BOX 221, COLUMBUS, MS 39703-0221
PO BOX 222, COLUMBUS, MS 39703-0222
PO BOX 223, COLUMBUS, MS 39703-0223
PO BOX 224, COLUMBUS, MS 39703-0224
PO BOX 225, COLUMBUS, MS 39703-0225
PO BOX 226, COLUMBUS, MS 39703-0226
PO BOX 227, COLUMBUS, MS 39703-0227
PO BOX 228, COLUMBUS, MS 39703-0228
PO BOX 229, COLUMBUS, MS 39703-0229
PO BOX 230, COLUMBUS, MS 39703-0230
PO BOX 231, COLUMBUS, MS 39703-0231
PO BOX 232, COLUMBUS, MS 39703-0232
PO BOX 233, COLUMBUS, MS 39703-0233
PO BOX 234, COLUMBUS, MS 39703-0234
PO BOX 235, COLUMBUS, MS 39703-0235
PO BOX 236, COLUMBUS, MS 39703-0236
PO BOX 237, COLUMBUS, MS 39703-0237
PO BOX 238, COLUMBUS, MS 39703-0238
PO BOX 239, COLUMBUS, MS 39703-0239
PO BOX 240, COLUMBUS, MS 39703-0240
PO BOX 241, COLUMBUS, MS 39703-0241
PO BOX 242, COLUMBUS, MS 39703-0242
PO BOX 243, COLUMBUS, MS 39703-0243
PO BOX 244, COLUMBUS, MS 39703-0244
PO BOX 245, COLUMBUS, MS 39703-0245
PO BOX 246, COLUMBUS, MS 39703-0246
PO BOX 247, COLUMBUS, MS 39703-0247
PO BOX 248, COLUMBUS, MS 39703-0248
PO BOX 249, COLUMBUS, MS 39703-0249
PO BOX 250, COLUMBUS, MS 39703-0250
PO BOX 251, COLUMBUS, MS 39703-0251
PO BOX 252, COLUMBUS, MS 39703-0252
PO BOX 253, COLUMBUS, MS 39703-0253
PO BOX 254, COLUMBUS, MS 39703-0254
PO BOX 255, COLUMBUS, MS 39703-0255
PO BOX 256, COLUMBUS, MS 39703-0256
PO BOX 257, COLUMBUS, MS 39703-0257
PO BOX 258, COLUMBUS, MS 39703-0258
PO BOX 259, COLUMBUS, MS 39703-0259
PO BOX 260, COLUMBUS, MS 39703-0260
PO BOX 261, COLUMBUS, MS 39703-0261
PO BOX 262, COLUMBUS, MS 39703-0262
PO BOX 263, COLUMBUS, MS 39703-0263
PO BOX 264, COLUMBUS, MS 39703-0264
PO BOX 265, COLUMBUS, MS 39703-0265
PO BOX 266, COLUMBUS, MS 39703-0266
PO BOX 267, COLUMBUS, MS 39703-0267
PO BOX 268, COLUMBUS, MS 39703-0268
PO BOX 269, COLUMBUS, MS 39703-0269
PO BOX 270, COLUMBUS, MS 39703-0270
PO BOX 271, COLUMBUS, MS 39703-0271
PO BOX 272, COLUMBUS, MS 39703-0272
PO BOX 273, COLUMBUS, MS 39703-0273
PO BOX 274, COLUMBUS, MS 39703-0274
PO BOX 275, COLUMBUS, MS 39703-0275
PO BOX 276, COLUMBUS, MS 39703-0276
PO BOX 277, COLUMBUS, MS 39703-0277
PO BOX 278, COLUMBUS, MS 39703-0278
PO BOX 279, COLUMBUS, MS 39703-0279
PO BOX 280, COLUMBUS, MS 39703-0280
PO BOX 281, COLUMBUS, MS 39703-0281
PO BOX 282, COLUMBUS, MS 39703-0282
PO BOX 283, COLUMBUS, MS 39703-0283
PO BOX 284, COLUMBUS, MS 39703-0284
PO BOX 285, COLUMBUS, MS 39703-0285
PO BOX 286, COLUMBUS, MS 39703-0286
PO BOX 287, COLUMBUS, MS 39703-0287
PO BOX 288, COLUMBUS, MS 39703-0288
PO BOX 289, COLUMBUS, MS 39703-0289
PO BOX 290, COLUMBUS, MS 39703-0290
PO BOX 291, COLUMBUS, MS 39703-0291
PO BOX 292, COLUMBUS, MS 39703-0292
PO BOX 293, COLUMBUS, MS 39703-0293
PO BOX 294, COLUMBUS, MS 39703-0294
PO BOX 295, COLUMBUS, MS 39703-0295
PO BOX 296, COLUMBUS, MS 39703-0296
PO BOX 297, COLUMBUS, MS 39703-0297
PO BOX 298, COLUMBUS, MS 39703-0298
PO BOX 299, COLUMBUS, MS 39703-0299
PO BOX 300, COLUMBUS, MS 39703-0300
PO BOX 301, COLUMBUS, MS 39703-0301
PO BOX 302, COLUMBUS, MS 39703-0302
PO BOX 303, COLUMBUS, MS 39703-0303
PO BOX 304, COLUMBUS, MS 39703-0304
PO BOX 305, COLUMBUS, MS 39703-0305
PO BOX 306, COLUMBUS, MS 39703-0306
PO BOX 307, COLUMBUS, MS 39703-0307
PO BOX 308, COLUMBUS, MS 39703-0308
PO BOX 309, COLUMBUS, MS 39703-0309
PO BOX 310, COLUMBUS, MS 39703-0310
PO BOX 311, COLUMBUS, MS 39703-0311
PO BOX 312, COLUMBUS, MS 39703-0312
PO BOX 313, COLUMBUS, MS 39703-0313
PO BOX 314, COLUMBUS, MS 39703-0314
PO BOX 315, COLUMBUS, MS 39703-0315
PO BOX 316, COLUMBUS, MS 39703-0316
PO BOX 317, COLUMBUS, MS 39703-0317
PO BOX 318, COLUMBUS, MS 39703-0318
PO BOX 319, COLUMBUS, MS 39703-0319
PO BOX 320, COLUMBUS, MS 39703-0320
PO BOX 321, COLUMBUS, MS 39703-0321
PO BOX 322, COLUMBUS, MS 39703-0322
PO BOX 323, COLUMBUS, MS 39703-0323
PO BOX 324, COLUMBUS, MS 39703-0324
PO BOX 325, COLUMBUS, MS 39703-0325
PO BOX 326, COLUMBUS, MS 39703-0326
PO BOX 327, COLUMBUS, MS 39703-0327
PO BOX 328, COLUMBUS, MS 39703-0328
PO BOX 329, COLUMBUS, MS 39703-0329
PO BOX 330, COLUMBUS, MS 39703-0330
PO BOX 331, COLUMBUS, MS 39703-0331
PO BOX 332, COLUMBUS, MS 39703-0332
PO BOX 333, COLUMBUS, MS 39703-0333
PO BOX 334, COLUMBUS, MS 39703-0334
PO BOX 335, COLUMBUS, MS 39703-0335
PO BOX 336, COLUMBUS, MS 39703-0336
PO BOX 337, COLUMBUS, MS 39703-0337
PO BOX 338, COLUMBUS, MS 39703-0338
PO BOX 339, COLUMBUS, MS 39703-0339
PO BOX 340, COLUMBUS, MS 39703-0340
PO BOX 341, COLUMBUS, MS 39703-0341
PO BOX 342, COLUMBUS, MS 39703-0342
PO BOX 343, COLUMBUS, MS 39703-0343
PO BOX 344, COLUMBUS, MS 39703-0344
PO BOX 345, COLUMBUS, MS 39703-0345
PO BOX 346, COLUMBUS, MS 39703-0346
PO BOX 347, COLUMBUS, MS 39703-0347
PO BOX 348, COLUMBUS, MS 39703-0348
PO BOX 349, COLUMBUS, MS 39703-0349
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