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 261, SEYMOUR, CT 06483-0261
PO BOX 262, SEYMOUR, CT 06483-0262
PO BOX 263, SEYMOUR, CT 06483-0263
PO BOX 264, SEYMOUR, CT 06483-0264
PO BOX 265, SEYMOUR, CT 06483-0265
PO BOX 266, SEYMOUR, CT 06483-0266
PO BOX 267, SEYMOUR, CT 06483-0267
PO BOX 268, SEYMOUR, CT 06483-0268
PO BOX 269, SEYMOUR, CT 06483-0269
PO BOX 270, SEYMOUR, CT 06483-0270
PO BOX 271, SEYMOUR, CT 06483-0271
PO BOX 272, SEYMOUR, CT 06483-0272
PO BOX 273, SEYMOUR, CT 06483-0273
PO BOX 274, SEYMOUR, CT 06483-0274
PO BOX 275, SEYMOUR, CT 06483-0275
PO BOX 276, SEYMOUR, CT 06483-0276
PO BOX 277, SEYMOUR, CT 06483-0277
PO BOX 278, SEYMOUR, CT 06483-0278
PO BOX 279, SEYMOUR, CT 06483-0279
PO BOX 280, SEYMOUR, CT 06483-0280
PO BOX 281, SEYMOUR, CT 06483-0281
PO BOX 282, SEYMOUR, CT 06483-0282
PO BOX 283, SEYMOUR, CT 06483-0283
PO BOX 284, SEYMOUR, CT 06483-0284
PO BOX 285, SEYMOUR, CT 06483-0285
PO BOX 286, SEYMOUR, CT 06483-0286
PO BOX 287, SEYMOUR, CT 06483-0287
PO BOX 288, SEYMOUR, CT 06483-0288
PO BOX 289, SEYMOUR, CT 06483-0289
PO BOX 290, SEYMOUR, CT 06483-0290
PO BOX 291, SEYMOUR, CT 06483-0291
PO BOX 292, SEYMOUR, CT 06483-0292
PO BOX 293, SEYMOUR, CT 06483-0293
PO BOX 294, SEYMOUR, CT 06483-0294
PO BOX 295, SEYMOUR, CT 06483-0295
PO BOX 296, SEYMOUR, CT 06483-0296
PO BOX 297, SEYMOUR, CT 06483-0297
PO BOX 298, SEYMOUR, CT 06483-0298
PO BOX 299, SEYMOUR, CT 06483-0299
PO BOX 300, SEYMOUR, CT 06483-0300
PO BOX 301, SEYMOUR, CT 06483-0301
PO BOX 302, SEYMOUR, CT 06483-0302
PO BOX 303, SEYMOUR, CT 06483-0303
PO BOX 304, SEYMOUR, CT 06483-0304
PO BOX 305, SEYMOUR, CT 06483-0305
PO BOX 306, SEYMOUR, CT 06483-0306
PO BOX 307, SEYMOUR, CT 06483-0307
PO BOX 308, SEYMOUR, CT 06483-0308
PO BOX 309, SEYMOUR, CT 06483-0309
PO BOX 310, SEYMOUR, CT 06483-0310
PO BOX 311, SEYMOUR, CT 06483-0311
PO BOX 312, SEYMOUR, CT 06483-0312
PO BOX 313, SEYMOUR, CT 06483-0313
PO BOX 314, SEYMOUR, CT 06483-0314
PO BOX 315, SEYMOUR, CT 06483-0315
PO BOX 316, SEYMOUR, CT 06483-0316
PO BOX 317, SEYMOUR, CT 06483-0317
PO BOX 318, SEYMOUR, CT 06483-0318
PO BOX 319, SEYMOUR, CT 06483-0319
PO BOX 320, SEYMOUR, CT 06483-0320
PO BOX 321, SEYMOUR, CT 06483-0321
PO BOX 322, SEYMOUR, CT 06483-0322
PO BOX 323, SEYMOUR, CT 06483-0323
PO BOX 324, SEYMOUR, CT 06483-0324
PO BOX 325, SEYMOUR, CT 06483-0325
PO BOX 326, SEYMOUR, CT 06483-0326
PO BOX 327, SEYMOUR, CT 06483-0327
PO BOX 328, SEYMOUR, CT 06483-0328
PO BOX 329, SEYMOUR, CT 06483-0329
PO BOX 330, SEYMOUR, CT 06483-0330
PO BOX 331, SEYMOUR, CT 06483-0331
PO BOX 332, SEYMOUR, CT 06483-0332
PO BOX 333, SEYMOUR, CT 06483-0333
PO BOX 334, SEYMOUR, CT 06483-0334
PO BOX 335, SEYMOUR, CT 06483-0335
PO BOX 336, SEYMOUR, CT 06483-0336
PO BOX 337, SEYMOUR, CT 06483-0337
PO BOX 338, SEYMOUR, CT 06483-0338
PO BOX 339, SEYMOUR, CT 06483-0339
PO BOX 340, SEYMOUR, CT 06483-0340
PO BOX 341, SEYMOUR, CT 06483-0341
PO BOX 342, SEYMOUR, CT 06483-0342
PO BOX 343, SEYMOUR, CT 06483-0343
PO BOX 344, SEYMOUR, CT 06483-0344
PO BOX 345, SEYMOUR, CT 06483-0345
PO BOX 346, SEYMOUR, CT 06483-0346
PO BOX 347, SEYMOUR, CT 06483-0347
PO BOX 348, SEYMOUR, CT 06483-0348
PO BOX 349, SEYMOUR, CT 06483-0349
PO BOX 350, SEYMOUR, CT 06483-0350
PO BOX 351, SEYMOUR, CT 06483-0351
PO BOX 352, SEYMOUR, CT 06483-0352
PO BOX 353, SEYMOUR, CT 06483-0353
PO BOX 354, SEYMOUR, CT 06483-0354
PO BOX 355, SEYMOUR, CT 06483-0355
PO BOX 356, SEYMOUR, CT 06483-0356
PO BOX 357, SEYMOUR, CT 06483-0357
PO BOX 358, SEYMOUR, CT 06483-0358
PO BOX 359, SEYMOUR, CT 06483-0359
PO BOX 360, SEYMOUR, CT 06483-0360
PO BOX 361, SEYMOUR, CT 06483-0361
PO BOX 362, SEYMOUR, CT 06483-0362
PO BOX 363, SEYMOUR, CT 06483-0363
PO BOX 364, SEYMOUR, CT 06483-0364
PO BOX 365, SEYMOUR, CT 06483-0365
PO BOX 366, SEYMOUR, CT 06483-0366
PO BOX 367, SEYMOUR, CT 06483-0367
PO BOX 368, SEYMOUR, CT 06483-0368
PO BOX 369, SEYMOUR, CT 06483-0369
PO BOX 370, SEYMOUR, CT 06483-0370
PO BOX 371, SEYMOUR, CT 06483-0371
PO BOX 372, SEYMOUR, CT 06483-0372
PO BOX 373, SEYMOUR, CT 06483-0373
PO BOX 374, SEYMOUR, CT 06483-0374
PO BOX 375, SEYMOUR, CT 06483-0375
PO BOX 376, SEYMOUR, CT 06483-0376
PO BOX 377, SEYMOUR, CT 06483-0377
PO BOX 378, SEYMOUR, CT 06483-0378
PO BOX 379, SEYMOUR, CT 06483-0379
PO BOX 380, SEYMOUR, CT 06483-0380
PO BOX 381, SEYMOUR, CT 06483-0381
PO BOX 382, SEYMOUR, CT 06483-0382
PO BOX 383, SEYMOUR, CT 06483-0383
PO BOX 384, SEYMOUR, CT 06483-0384
PO BOX 385, SEYMOUR, CT 06483-0385
PO BOX 386, SEYMOUR, CT 06483-0386
PO BOX 387, SEYMOUR, CT 06483-0387
PO BOX 388, SEYMOUR, CT 06483-0388
PO BOX 389, SEYMOUR, CT 06483-0389
PO BOX 390, SEYMOUR, CT 06483-0390
PO BOX 391, SEYMOUR, CT 06483-0391
PO BOX 392, SEYMOUR, CT 06483-0392
PO BOX 393, SEYMOUR, CT 06483-0393
PO BOX 394, SEYMOUR, CT 06483-0394
PO BOX 395, SEYMOUR, CT 06483-0395
PO BOX 396, SEYMOUR, CT 06483-0396
PO BOX 397, SEYMOUR, CT 06483-0397
PO BOX 398, SEYMOUR, CT 06483-0398
PO BOX 399, SEYMOUR, CT 06483-0399
PO BOX 400, SEYMOUR, CT 06483-0400
PO BOX 401, SEYMOUR, CT 06483-0401
PO BOX 402, SEYMOUR, CT 06483-0402
PO BOX 403, SEYMOUR, CT 06483-0403
PO BOX 404, SEYMOUR, CT 06483-0404
PO BOX 405, SEYMOUR, CT 06483-0405
PO BOX 406, SEYMOUR, CT 06483-0406
PO BOX 407, SEYMOUR, CT 06483-0407
PO BOX 408, SEYMOUR, CT 06483-0408
PO BOX 409, SEYMOUR, CT 06483-0409
PO BOX 410, SEYMOUR, CT 06483-0410
PO BOX 411, SEYMOUR, CT 06483-0411
PO BOX 412, SEYMOUR, CT 06483-0412
PO BOX 413, SEYMOUR, CT 06483-0413
PO BOX 414, SEYMOUR, CT 06483-0414
PO BOX 415, SEYMOUR, CT 06483-0415
PO BOX 416, SEYMOUR, CT 06483-0416
PO BOX 417, SEYMOUR, CT 06483-0417
PO BOX 418, SEYMOUR, CT 06483-0418
PO BOX 419, SEYMOUR, CT 06483-0419
PO BOX 420, SEYMOUR, CT 06483-0420
PO BOX 421, SEYMOUR, CT 06483-0421
PO BOX 422, SEYMOUR, CT 06483-0422
PO BOX 423, SEYMOUR, CT 06483-0423
PO BOX 424, SEYMOUR, CT 06483-0424
PO BOX 425, SEYMOUR, CT 06483-0425
PO BOX 426, SEYMOUR, CT 06483-0426
PO BOX 427, SEYMOUR, CT 06483-0427
PO BOX 428, SEYMOUR, CT 06483-0428
PO BOX 429, SEYMOUR, CT 06483-0429
PO BOX 430, SEYMOUR, CT 06483-0430
PO BOX 431, SEYMOUR, CT 06483-0431
PO BOX 432, SEYMOUR, CT 06483-0432
PO BOX 433, SEYMOUR, CT 06483-0433
PO BOX 434, SEYMOUR, CT 06483-0434
PO BOX 435, SEYMOUR, CT 06483-0435
PO BOX 436, SEYMOUR, CT 06483-0436
PO BOX 437, SEYMOUR, CT 06483-0437
PO BOX 438, SEYMOUR, CT 06483-0438
PO BOX 439, SEYMOUR, CT 06483-0439
PO BOX 440, SEYMOUR, CT 06483-0440
PO BOX 441, SEYMOUR, CT 06483-0441
PO BOX 442, SEYMOUR, CT 06483-0442
PO BOX 443, SEYMOUR, CT 06483-0443
PO BOX 444, SEYMOUR, CT 06483-0444
PO BOX 445, SEYMOUR, CT 06483-0445
PO BOX 446, SEYMOUR, CT 06483-0446
PO BOX 447, SEYMOUR, CT 06483-0447
PO BOX 448, SEYMOUR, CT 06483-0448
PO BOX 449, SEYMOUR, CT 06483-0449
PO BOX 450, SEYMOUR, CT 06483-0450
PO BOX 451, SEYMOUR, CT 06483-0451
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