Powys - Powys has been allocated the following number ranges to use for Unique Street Reference Numbers
| USRN From |
USRN To |
| 26200000 |
26299999 |
| 30900000 |
30999999 |
| 4100000 |
4199999 |
| 85300000 |
85399999 |
Streets within the area of Powys - Powys fall within the following post towns.
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