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 52200, PHOENIX, AZ 85072-2200
PO BOX 52201, PHOENIX, AZ 85072-2201
PO BOX 52202, PHOENIX, AZ 85072-2202
PO BOX 52203, PHOENIX, AZ 85072-2203
PO BOX 52204, PHOENIX, AZ 85072-2204
PO BOX 52205, PHOENIX, AZ 85072-2205
PO BOX 52206, PHOENIX, AZ 85072-2206
PO BOX 52207, PHOENIX, AZ 85072-2207
PO BOX 52208, PHOENIX, AZ 85072-2208
PO BOX 52209, PHOENIX, AZ 85072-2209
PO BOX 52210, PHOENIX, AZ 85072-2210
PO BOX 52211, PHOENIX, AZ 85072-2211
PO BOX 52212, PHOENIX, AZ 85072-2212
PO BOX 52213, PHOENIX, AZ 85072-2213
PO BOX 52214, PHOENIX, AZ 85072-2214
PO BOX 52215, PHOENIX, AZ 85072-2215
PO BOX 52216, PHOENIX, AZ 85072-2216
PO BOX 52217, PHOENIX, AZ 85072-2217
PO BOX 52218, PHOENIX, AZ 85072-2218
PO BOX 52219, PHOENIX, AZ 85072-2219
PO BOX 52220, PHOENIX, AZ 85072-2220
PO BOX 52221, PHOENIX, AZ 85072-2221
PO BOX 52222, PHOENIX, AZ 85072-2222
PO BOX 52223, PHOENIX, AZ 85072-2223
PO BOX 52224, PHOENIX, AZ 85072-2224
PO BOX 52225, PHOENIX, AZ 85072-2225
PO BOX 52226, PHOENIX, AZ 85072-2226
PO BOX 52227, PHOENIX, AZ 85072-2227
PO BOX 52228, PHOENIX, AZ 85072-2228
PO BOX 52229, PHOENIX, AZ 85072-2229
PO BOX 52230, PHOENIX, AZ 85072-2230
PO BOX 52231, PHOENIX, AZ 85072-2231
PO BOX 52232, PHOENIX, AZ 85072-2232
PO BOX 52233, PHOENIX, AZ 85072-2233
PO BOX 52234, PHOENIX, AZ 85072-2234
PO BOX 52235, PHOENIX, AZ 85072-2235
PO BOX 52236, PHOENIX, AZ 85072-2236
PO BOX 52237, PHOENIX, AZ 85072-2237
PO BOX 52238, PHOENIX, AZ 85072-2238
PO BOX 52239, PHOENIX, AZ 85072-2239
PO BOX 52240, PHOENIX, AZ 85072-2240
PO BOX 52241, PHOENIX, AZ 85072-2241
PO BOX 52242, PHOENIX, AZ 85072-2242
PO BOX 52243, PHOENIX, AZ 85072-2243
PO BOX 52244, PHOENIX, AZ 85072-2244
PO BOX 52245, PHOENIX, AZ 85072-2245
PO BOX 52246, PHOENIX, AZ 85072-2246
PO BOX 52247, PHOENIX, AZ 85072-2247
PO BOX 52248, PHOENIX, AZ 85072-2248
PO BOX 52249, PHOENIX, AZ 85072-2249
PO BOX 52250, PHOENIX, AZ 85072-2250
PO BOX 52251, PHOENIX, AZ 85072-2251
PO BOX 52252, PHOENIX, AZ 85072-2252
PO BOX 52253, PHOENIX, AZ 85072-2253
PO BOX 52254, PHOENIX, AZ 85072-2254
PO BOX 52255, PHOENIX, AZ 85072-2255
PO BOX 52256, PHOENIX, AZ 85072-2256
PO BOX 52257, PHOENIX, AZ 85072-2257
PO BOX 52258, PHOENIX, AZ 85072-2258
PO BOX 52259, PHOENIX, AZ 85072-2259
PO BOX 52260, PHOENIX, AZ 85072-2260
PO BOX 52261, PHOENIX, AZ 85072-2261
PO BOX 52262, PHOENIX, AZ 85072-2262
PO BOX 52263, PHOENIX, AZ 85072-2263
PO BOX 52264, PHOENIX, AZ 85072-2264
PO BOX 52265, PHOENIX, AZ 85072-2265
PO BOX 52266, PHOENIX, AZ 85072-2266
PO BOX 52267, PHOENIX, AZ 85072-2267
PO BOX 52268, PHOENIX, AZ 85072-2268
PO BOX 52269, PHOENIX, AZ 85072-2269
PO BOX 52270, PHOENIX, AZ 85072-2270
PO BOX 52271, PHOENIX, AZ 85072-2271
PO BOX 52272, PHOENIX, AZ 85072-2272
PO BOX 52273, PHOENIX, AZ 85072-2273
PO BOX 52274, PHOENIX, AZ 85072-2274
PO BOX 52275, PHOENIX, AZ 85072-2275
PO BOX 52276, PHOENIX, AZ 85072-2276
PO BOX 52277, PHOENIX, AZ 85072-2277
PO BOX 52278, PHOENIX, AZ 85072-2278
PO BOX 52279, PHOENIX, AZ 85072-2279
PO BOX 52280, PHOENIX, AZ 85072-2280
PO BOX 52281, PHOENIX, AZ 85072-2281
PO BOX 52282, PHOENIX, AZ 85072-2282
PO BOX 52283, PHOENIX, AZ 85072-2283
PO BOX 52284, PHOENIX, AZ 85072-2284
PO BOX 52285, PHOENIX, AZ 85072-2285
PO BOX 52286, PHOENIX, AZ 85072-2286
PO BOX 52287, PHOENIX, AZ 85072-2287
PO BOX 52288, PHOENIX, AZ 85072-2288
PO BOX 52289, PHOENIX, AZ 85072-2289
PO BOX 52290, PHOENIX, AZ 85072-2290
PO BOX 52291, PHOENIX, AZ 85072-2291
PO BOX 52292, PHOENIX, AZ 85072-2292
PO BOX 52293, PHOENIX, AZ 85072-2293
PO BOX 52294, PHOENIX, AZ 85072-2294
PO BOX 52295, PHOENIX, AZ 85072-2295
PO BOX 52296, PHOENIX, AZ 85072-2296
PO BOX 52297, PHOENIX, AZ 85072-2297
PO BOX 52298, PHOENIX, AZ 85072-2298
PO BOX 52299, PHOENIX, AZ 85072-2299
PO BOX 52300, PHOENIX, AZ 85072-2300
PO BOX 52301, PHOENIX, AZ 85072-2301
PO BOX 52302, PHOENIX, AZ 85072-2302
PO BOX 52303, PHOENIX, AZ 85072-2303
PO BOX 52304, PHOENIX, AZ 85072-2304
PO BOX 52305, PHOENIX, AZ 85072-2305
PO BOX 52306, PHOENIX, AZ 85072-2306
PO BOX 52307, PHOENIX, AZ 85072-2307
PO BOX 52308, PHOENIX, AZ 85072-2308
PO BOX 52309, PHOENIX, AZ 85072-2309
PO BOX 52310, PHOENIX, AZ 85072-2310
PO BOX 52311, PHOENIX, AZ 85072-2311
PO BOX 52312, PHOENIX, AZ 85072-2312
PO BOX 52313, PHOENIX, AZ 85072-2313
PO BOX 52314, PHOENIX, AZ 85072-2314
PO BOX 52315, PHOENIX, AZ 85072-2315
PO BOX 52316, PHOENIX, AZ 85072-2316
PO BOX 52317, PHOENIX, AZ 85072-2317
PO BOX 52318, PHOENIX, AZ 85072-2318
PO BOX 52319, PHOENIX, AZ 85072-2319
PO BOX 52320, PHOENIX, AZ 85072-2320
PO BOX 52321, PHOENIX, AZ 85072-2321
PO BOX 52322, PHOENIX, AZ 85072-2322
PO BOX 52323, PHOENIX, AZ 85072-2323
PO BOX 52324, PHOENIX, AZ 85072-2324
PO BOX 52325, PHOENIX, AZ 85072-2325
PO BOX 52326, PHOENIX, AZ 85072-2326
PO BOX 52327, PHOENIX, AZ 85072-2327
PO BOX 52328, PHOENIX, AZ 85072-2328
PO BOX 52329, PHOENIX, AZ 85072-2329
PO BOX 52330, PHOENIX, AZ 85072-2330
PO BOX 52331, PHOENIX, AZ 85072-2331
PO BOX 52332, PHOENIX, AZ 85072-2332
PO BOX 52333, PHOENIX, AZ 85072-2333
PO BOX 52334, PHOENIX, AZ 85072-2334
PO BOX 52335, PHOENIX, AZ 85072-2335
PO BOX 52336, PHOENIX, AZ 85072-2336
PO BOX 52337, PHOENIX, AZ 85072-2337
PO BOX 52338, PHOENIX, AZ 85072-2338
PO BOX 52339, PHOENIX, AZ 85072-2339
PO BOX 52340, PHOENIX, AZ 85072-2340
PO BOX 52341, PHOENIX, AZ 85072-2341
PO BOX 52342, PHOENIX, AZ 85072-2342
PO BOX 52343, PHOENIX, AZ 85072-2343
PO BOX 52344, PHOENIX, AZ 85072-2344
PO BOX 52345, PHOENIX, AZ 85072-2345
PO BOX 52346, PHOENIX, AZ 85072-2346
PO BOX 52347, PHOENIX, AZ 85072-2347
PO BOX 52348, PHOENIX, AZ 85072-2348
PO BOX 52349, PHOENIX, AZ 85072-2349
PO BOX 52350, PHOENIX, AZ 85072-2350
PO BOX 52351, PHOENIX, AZ 85072-2351
PO BOX 52352, PHOENIX, AZ 85072-2352
PO BOX 52353, PHOENIX, AZ 85072-2353
PO BOX 52354, PHOENIX, AZ 85072-2354
PO BOX 52355, PHOENIX, AZ 85072-2355
PO BOX 52356, PHOENIX, AZ 85072-2356
PO BOX 52357, PHOENIX, AZ 85072-2357
PO BOX 52358, PHOENIX, AZ 85072-2358
PO BOX 52359, PHOENIX, AZ 85072-2359
PO BOX 52360, PHOENIX, AZ 85072-2360
PO BOX 52361, PHOENIX, AZ 85072-2361
PO BOX 52362, PHOENIX, AZ 85072-2362
PO BOX 52363, PHOENIX, AZ 85072-2363
PO BOX 52364, PHOENIX, AZ 85072-2364
PO BOX 52365, PHOENIX, AZ 85072-2365
PO BOX 52366, PHOENIX, AZ 85072-2366
PO BOX 52367, PHOENIX, AZ 85072-2367
PO BOX 52368, PHOENIX, AZ 85072-2368
PO BOX 52369, PHOENIX, AZ 85072-2369
PO BOX 52370, PHOENIX, AZ 85072-2370
PO BOX 52371, PHOENIX, AZ 85072-2371
PO BOX 52372, PHOENIX, AZ 85072-2372
PO BOX 52373, PHOENIX, AZ 85072-2373
PO BOX 52374, PHOENIX, AZ 85072-2374
PO BOX 52375, PHOENIX, AZ 85072-2375
PO BOX 52376, PHOENIX, AZ 85072-2376
PO BOX 52377, PHOENIX, AZ 85072-2377
PO BOX 52378, PHOENIX, AZ 85072-2378
PO BOX 52379, PHOENIX, AZ 85072-2379
PO BOX 52380, PHOENIX, AZ 85072-2380
PO BOX 52381, PHOENIX, AZ 85072-2381
PO BOX 52382, PHOENIX, AZ 85072-2382
PO BOX 52383, PHOENIX, AZ 85072-2383
PO BOX 52384, PHOENIX, AZ 85072-2384
PO BOX 52385, PHOENIX, AZ 85072-2385
PO BOX 52386, PHOENIX, AZ 85072-2386
PO BOX 52387, PHOENIX, AZ 85072-2387
PO BOX 52388, PHOENIX, AZ 85072-2388
PO BOX 52389, PHOENIX, AZ 85072-2389
PO BOX 52390, PHOENIX, AZ 85072-2390
PO BOX 52391, PHOENIX, AZ 85072-2391
PO BOX 52392, PHOENIX, AZ 85072-2392
PO BOX 52393, PHOENIX, AZ 85072-2393
PO BOX 52394, PHOENIX, AZ 85072-2394
PO BOX 52395, PHOENIX, AZ 85072-2395
PO BOX 52396, PHOENIX, AZ 85072-2396
PO BOX 52397, PHOENIX, AZ 85072-2397
PO BOX 52398, PHOENIX, AZ 85072-2398
PO BOX 52399, PHOENIX, AZ 85072-2399
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