United States Postal Service logo and link to homepageSkip Navigation Print
View Content Identifier Number (CIN) List
Return to Previous Screen
 
The Search and Sort options below allow you to filter the CIN List shown at the bottom of the page. Click "Submit" to return to the complete list.
Search and Sort Options
Enter CIN:
  Or
Mail Class:
Mail Shape:
Presort:
CIN List
CIN Mail Class Mail Shape Presort
290   First-Class M   N/A   3D    
390   Periodicals   Nonstandard Parcels   3D    
490   News   Nonstandard Parcels   3D    
591   USPS Marketing Mail   Nonstandard Parcels   3D    
691   Package Services   Nonstandard Parcels   3D    
244   First-Class M   Letters   3D BC    
273   First-Class M   Flats   3D BC    
344   Periodicals   Letters   3D BC    
373   Periodicals   Flats   3D BC    
444   News   Letters   3D BC    
473   News   Flats   3D BC    
544   USPS Marketing Mail   Letters   3D BC    
573   USPS Marketing Mail   Flats   3D BC    
636   Package Services   Flats   3D BC    
222   First-Class M   Flats   3D BC/NBC    
322   Periodicals   Flats   3D BC/NBC    
422   News   Flats   3D BC/NBC    
522   USPS Marketing Mail   Flats   3D BC/NBC    
661   Package Services   Flats   3D BC/NBC    
351   Periodicals   Flats   3D CR-RTS    
355   Periodicals   Nonstandard Parcels   3D CR-RTS    
368   Periodicals   Letters   3D CR-RTS    
451   News   Flats   3D CR-RTS    
455   News   Nonstandard Parcels   3D CR-RTS    
468   News   Letters   3D CR-RTS    
265   First-Class M   Letters   3D CR-RTS BC    
565   USPS Marketing Mail   Letters   3D CR-RTS BC    
568   USPS Marketing Mail   Letters   3D CR-RTS MACH    
611   USPS Marketing Mail   Letters   3D CR-RTS MAN    
255   First-Class M   Letters   3D MACH    
555   USPS Marketing Mail   Letters   3D MACH    
269   First-Class M   Letters   3D MANUAL    
606   USPS Marketing Mail   Letters   3D MANUAL    
279   First-Class M   Flats   3D NON BC    
353   Periodicals   Letters   3D NON BC    
379   Periodicals   Flats   3D NON BC    
453   News   Letters   3D NON BC    
479   News   Flats   3D NON BC    
579   USPS Marketing Mail   Flats   3D NON BC    
650   Package Services   Flats   3D NON BC    
443   News   Letters   3D SCHEME BC    
543   USPS Marketing Mail   Letters   3D SCHEME BC    
289   First-Class M   N/A   5D    
389   Periodicals   Nonstandard Parcels   5D    
489   News   Nonstandard Parcels   5D    
242   First-Class M   Letters   5D BC    
272   First-Class M   Flats   5D BC    
342   Periodicals   Letters   5D BC    
372   Periodicals   Flats   5D BC    
442   News   Letters   5D BC    
472   News   Flats   5D BC    
542   USPS Marketing Mail   Letters   5D BC    
572   USPS Marketing Mail   Flats   5D BC    
635   Package Services   Flats   5D BC    
221   First-Class M   Flats   5D BC/NBC    
321   Periodicals   Flats   5D BC/NBC    
421   News   Flats   5D BC/NBC    
521   USPS Marketing Mail   Flats   5D BC/NBC    
648   Package Services   Flats   5D BC/NBC    
339   Periodicals   Flats   5D CR    
340   Periodicals   Nonstandard Parcels   5D CR    
439   News   Flats   5D CR    
440   News   Nonstandard Parcels   5D CR    
539   USPS Marketing Mail   Flats   5D CR    
567   USPS Marketing Mail   Letters   5D CR-RT MACH    
386   Periodicals   Flats   5D CR-RTS    
609   USPS Marketing Mail   Letters   5D CR-RTS MAN    
S88   Package Services   Parcels   5D DSCF AT DBMC    
252   First-Class M   Letters   5D MACH    
552   USPS Marketing Mail   Letters   5D MACH    
267   First-Class M   Letters   5D MANUAL    
604   USPS Marketing Mail   Letters   5D MANUAL    
278   First-Class M   Flats   5D NON BC    
350   Periodicals   Letters   5D NON BC    
378   Periodicals   Flats   5D NON BC    
450   News   Letters   5D NON BC    
478   News   Flats   5D NON BC    
578   USPS Marketing Mail   Flats   5D NON BC    
649   Package Services   Flats   5D NON BC    
241   First-Class M   Letters   5D SCHEME BC    
341   Periodicals   Letters   5D SCHEME BC    
441   News   Letters   5D SCHEME BC    
541   USPS Marketing Mail   Letters   5D SCHEME BC    
P33   Periodicals   Flats   5D SCHEME BC    
P43   News   Flats   5D SCHEME BC    
P58   USPS Marketing Mail   Flats   5D SCHEME BC    
349   Periodicals   Flats   5D SCHEME CR    
365   Periodicals   Nonstandard Parcels   5D SCHEME CR    
449   News   Flats   5D SCHEME CR    
465   News   Nonstandard Parcels   5D SCHEME CR    
549   USPS Marketing Mail   Flats   5D SCHEME CR    
590   USPS Marketing Mail   Nonstandard Parcels   5D/5D SCHEME    
603   USPS Marketing Mail   Machinable/Nonstandard Parcels   5D/5D SCHEME    
670   USPS Marketing Mail   Machinable Parcels   5D/5D SCHEME    
680   Package Services   Machinable Parcels   5D/5D SCHEME    
688   Package Services   Parcels   5D/5D SCHEME    
690   Package Services   Nonstandard Parcels   5D/5D SCHEME    
245   First-Class M   Letters   AADC BC    
345   Periodicals   Letters   AADC BC    
445   News   Letters   AADC BC    
545   USPS Marketing Mail   Letters   AADC BC    
258   First-Class M   Letters   AADC UPGR    
558   USPS Marketing Mail   Letters   AADC UPGR    
291   First-Class M   N/A   ADC    
391   Periodicals   Nonstandard Parcels   ADC    
491   News   Nonstandard Parcels   ADC    
592   USPS Marketing Mail   Nonstandard Parcels   ADC    
692   Package Services   Nonstandard Parcels   ADC    
274   First-Class M   Flats   ADC BC    
374   Periodicals   Flats   ADC BC    
474   News   Flats   ADC BC    
574   USPS Marketing Mail   Flats   ADC BC    
638   Package Services   Flats   ADC BC    
P31   Periodicals   Letters   ADC BC    
P41   News   Letters   ADC BC    
231   First-Class M   Flats   ADC BC/NBC    
331   Periodicals   Flats   ADC BC/NBC    
431   News   Flats   ADC BC/NBC    
531   USPS Marketing Mail   Flats   ADC BC/NBC    
668   Package Services   Flats   ADC BC/NBC    
270   First-Class M   Letters   ADC MANUAL    
607   USPS Marketing Mail   Letters   ADC MANUAL    
280   First-Class M   Flats   ADC NON BC    
356   Periodicals   Letters   ADC NON BC    
380   Periodicals   Flats   ADC NON BC    
456   News   Letters   ADC NON BC    
480   News   Flats   ADC NON BC    
580   USPS Marketing Mail   Flats   ADC NON BC    
651   Package Services   Flats   ADC NON BC    
733   N/A   Flats   AIR    
742   N/A   N/A   AO DRX    
743   N/A   N/A   AO WKG    
571   USPS Marketing Mail   Nonstandard Parcels   ASF    
672   USPS Marketing Mail   Machinable Parcels   ASF    
682   Package Services   Machinable Parcels   ASF    
673   USPS Marketing Mail   Machinable Parcels   BMC    
683   Package Services   Machinable Parcels   BMC    
P02   USPS Marketing Mail   Nonstandard Parcels   BMC    
P61   Package Services   Nonstandard Parcels   BMC    
P51   USPS Marketing Mail   Letters   BMC BC    
P57   USPS Marketing Mail   Flats   BMC BC    
P66   Package Services   Flats   BMC BC    
P04   USPS Marketing Mail   Flats   BMC BC/NBC    
Q04   Package Services   Machinable Parcels   BMC BEDLOAD    
Q05   Package Services   Nonstandard Parcels   BMC BEDLOAD    
366   Periodicals   Letters   CR    
385   Periodicals   Flats   CR    
395   Periodicals   Nonstandard Parcels   CR    
466   News   Letters   CR    
485   News   Flats   CR    
495   News   Nonstandard Parcels   CR    
657   Package Services   Flats   CR    
687   Package Services   Machinable Parcels   CR    
697   Package Services   Nonstandard Parcels   CR    
263   First-Class M   Letters   CR BC    
563   USPS Marketing Mail   Letters   CR BC    
367   Periodicals   Letters   CR-RTS    
396   Periodicals   Nonstandard Parcels   CR-RTS    
467   News   Letters   CR-RTS    
486   News   Flats   CR-RTS    
496   News   Nonstandard Parcels   CR-RTS    
586   USPS Marketing Mail   Flats   CR-RTS    
598   USPS Marketing Mail   Nonstandard Parcels   CR-RTS    
658   Package Services   Flats   CR-RTS    
264   First-Class M   Letters   CR-RTS BC    
564   USPS Marketing Mail   Letters   CR-RTS BC    
371   Periodicals   Flats   CR-RTS SCHEME    
399   Periodicals   Nonstandard Parcels   CR-RTS SCHEME    
471   News   Flats   CR-RTS SCHEME    
499   News   Nonstandard Parcels   CR-RTS SCHEME    
529   USPS Marketing Mail   Flats   CR-RTS SCHEME    
659   Package Services   Flats   CR-RTS SCHEME    
352   Periodicals   Flats   CR/5D/3D    
354   Periodicals   Nonstandard Parcels   CR/5D/3D    
452   News   Flats   CR/5D/3D    
454   News   Nonstandard Parcels   CR/5D/3D    
698   Package Services   Nonstandard Parcels   CRRTS/CRRTS-SCH    
729   N/A   Letters   DRX    
589   USPS Marketing Mail   Flats   ECRLOT    
588   USPS Marketing Mail   Flats   ECRWSH    
587   USPS Marketing Mail   Flats   ECRWSS    
557   USPS Marketing Mail   Letters   ECRWSS BC    
569   USPS Marketing Mail   Letters   ECRWSS MACH    
608   USPS Marketing Mail   Letters   ECRWSS MAN    
NF1   N/A   Flats   FSS    
NF2   N/A   Flats   FSS    
PF1   N/A   Flats   FSS    
PF2   N/A   Flats   FSS    
SF1   N/A   Flats   FSS    
SF2   N/A   Flats   FSS    
601   USPS Marketing Mail   Nonstandard Parcels   LOT    
660   USPS Marketing Mail   Machinable Parcels   MACH 5D/5D SCH    
662   USPS Marketing Mail   Machinable Parcels   MACH ASF    
663   USPS Marketing Mail   Machinable Parcels   MACH BMC    
664   USPS Marketing Mail   Machinable Parcels   MACH WKG    
268   First-Class M   Letters   MANUAL ONLY    
605   USPS Marketing Mail   Letters   MANUAL ONLY    
143   N/A   N/A   N/A    
165   N/A   N/A   N/A    
701   N/A   N/A   N/A    
703   N/A   N/A   N/A    
709   N/A   Letters   N/A    
710   N/A   Flats   N/A    
714   N/A   Letters   N/A    
718   N/A   Flats   N/A    
721   N/A   Letters   N/A    
724   N/A   Flats   N/A    
728   N/A   Flats   N/A    
DEF   Default   Default   N/A    
501   USPS Marketing Mail   Nonstandard Parcels   NFM 3D    
500   USPS Marketing Mail   Machinable/Nonstandard Parcels   NFM 5D    
502   USPS Marketing Mail   Nonstandard Parcels   NFM ADC    
509   USPS Marketing Mail   Nonstandard Parcels   NFM ASF    
503   USPS Marketing Mail   Machinable Parcels   NFM MACH ASF    
505   USPS Marketing Mail   Machinable Parcels   NFM MACH BMC    
512   USPS Marketing Mail   Machinable Parcels   NFM MACH SCF    
518   USPS Marketing Mail   Machinable Parcels   NFM MACH WKG    
507   USPS Marketing Mail   Nonstandard Parcels   NFM SCF    
P64   Package Services   Machinable Parcels   PER BMC    
P65   Package Services   Nonstandard Parcels   PER BMC    
Q02   Package Services   Machinable Parcels   PER BMC BEDLD    
Q03   Package Services   Nonstandard Parcels   PER BMC BEDLD    
P62   Package Services   Machinable Parcels   PER SCF    
P63   Package Services   Nonstandard Parcels   PER SCF    
Q00   Package Services   Machinable Parcels   PER SCF BEDLD    
Q01   Package Services   Nonstandard Parcels   PER SCF BEDLD    
P55   USPS Marketing Mail   Letters   PRESORT (U) BMC    
P54   USPS Marketing Mail   Letters   PRESORT (U) SCF    
P00   USPS Marketing Mail   Flats   PRESORT BMC    
P53   USPS Marketing Mail   Letters   PRESORT BMC    
P60   Package Services   Flats   PRESORT BMC    
P32   Periodicals   Letters   PRESORT SCF    
P34   Periodicals   Parcels   PRESORT SCF    
P42   News   Letters   PRESORT SCF    
P44   News   Parcels   PRESORT SCF    
P52   USPS Marketing Mail   Letters   PRESORT SCF    
P59   USPS Marketing Mail   Flats   PRESORT SCF    
394   Periodicals   Nonstandard Parcels   SCF    
494   News   Nonstandard Parcels   SCF    
696   Package Services   Nonstandard Parcels   SCF    
P01   USPS Marketing Mail   Nonstandard Parcels   SCF    
377   Periodicals   Flats   SCF BC    
477   News   Flats   SCF BC    
637   Package Services   Flats   SCF BC    
P30   Periodicals   Letters   SCF BC    
P40   News   Letters   SCF BC    
P50   USPS Marketing Mail   Letters   SCF BC    
P56   USPS Marketing Mail   Flats   SCF BC    
329   Periodicals   Flats   SCF BC/NBC    
429   News   Flats   SCF BC/NBC    
667   Package Services   Flats   SCF BC/NBC    
P03   USPS Marketing Mail   Flats   SCF BC/NBC    
384   Periodicals   Flats   SCF NON BC    
484   News   Flats   SCF NON BC    
654   Package Services   Flats   SCF NON BC    
243   First-Class M   Letters   SCHEME BC    
343   Periodicals   Letters   SCHEME BC    
260   First-Class M   Letters   UPGR WKG    
560   USPS Marketing Mail   Letters   UPGR WKG    
292   First-Class M   N/A   WKG    
392   Periodicals   Nonstandard Parcels   WKG    
492   News   Nonstandard Parcels   WKG    
594   USPS Marketing Mail   Nonstandard Parcels   WKG    
674   USPS Marketing Mail   Machinable Parcels   WKG    
684   Package Services   Machinable Parcels   WKG    
694   Package Services   Nonstandard Parcels   WKG    
715   N/A   Letters   WKG    
246   First-Class M   Letters   WKG BC    
275   First-Class M   Flats   WKG BC    
346   Periodicals   Letters   WKG BC    
375   Periodicals   Flats   WKG BC    
446   News   Letters   WKG BC    
475   News   Flats   WKG BC    
546   USPS Marketing Mail   Letters   WKG BC    
575   USPS Marketing Mail   Flats   WKG BC    
639   Package Services   Flats   WKG BC    
232   First-Class M   Flats   WKG BC/NBC    
332   Periodicals   Flats   WKG BC/NBC    
432   News   Flats   WKG BC/NBC    
532   USPS Marketing Mail   Flats   WKG BC/NBC    
669   Package Services   Flats   WKG BC/NBC    
282   First-Class M   Flats   WKG NON BC    
359   Periodicals   Letters   WKG NON BC    
382   Periodicals   Flats   WKG NON BC    
459   News   Letters   WKG NON BC    
482   News   Flats   WKG NON BC    
582   USPS Marketing Mail   Flats   WKG NON BC    
653   Package Services   Flats   WKG NON BC    
363   Periodicals   Nonstandard Parcels   WKG W FCM    
381   Periodicals   Flats   WKG W FCM    
463   News   Nonstandard Parcels   WKG W FCM    
481   News   Flats   WKG W FCM    
370   Periodicals   Letters   WSH    
388   Periodicals   Flats   WSH    
398   Periodicals   Nonstandard Parcels   WSH    
470   News   Letters   WSH    
488   News   Flats   WSH    
498   News   Nonstandard Parcels   WSH    
600   USPS Marketing Mail   Nonstandard Parcels   WSH    
369   Periodicals   Letters   WSS    
387   Periodicals   Flats   WSS    
397   Periodicals   Nonstandard Parcels   WSS    
469   News   Letters   WSS    
487   News   Flats   WSS    
497   News   Nonstandard Parcels   WSS    
599   USPS Marketing Mail   Nonstandard Parcels   WSS