| ID |
| Flat Rate Box |
648 |
| Flat Rate Envelope |
649 |
| Large Envelope/ Flat |
650 |
| Large Flat Rate Box |
651 |
| First Class Large Envelope/Flat |
652 |
| Legal Flat Rate Envelope |
653 |
| Letter |
654 |
| Military Large Flat Rate Box |
655 |
| Package |
656 |
| Padded Flat Rate Envelope |
657 |
| Regional Box A |
658 |
| Regional Box B |
659 |
| Small Flat Rate Box |
661 |
| International Letter |
985 |
| Nonmachineable Letter |
10083 |
| International Nonmachineable Letter |
10084 |
| Soft Pack Envelope |
10085 |
| DVD Flat Rate Box |
10086 |
| Irregular Package |
10087 |
| Large Video Flat Rate Box |
10088 |
| Postcard |
10165 |
See full PB Shipping API (CarrierID=106) Reference.
