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General Information
Name:
United States Postal Service
Domain:
usps.gov
Country:
US
Type:
government
Registry:
ARIN
Prefix Counts
IPv4 Count:
268,544
IPv6 Count:
99,035,203,142,830,421,991,929,937,920
IPv4 Prefixes
| CIDR | Country | Network Name | Organization | Registry | Status | Size |
|---|---|---|---|---|---|---|
| 56.0.0.0/16 | US | USPS1 | United States Postal Service | ARIN | allocation | 65,536 |
| 56.0.32.0/20 | US | USPS1 | United States Postal Service | ARIN | allocation | 4,096 |
| 56.0.64.0/19 | US | USPS1 | United States Postal Service | ARIN | allocation | 8,192 |
| 56.0.91.0/24 | US | USPS1 | United States Postal Service | ARIN | allocation | 256 |
| 56.0.95.0/24 | US | USPS1 | United States Postal Service | ARIN | allocation | 256 |
| 56.0.103.0/24 | US | USPS1 | United States Postal Service | ARIN | allocation | 256 |
| 56.0.128.0/19 | US | USPS1 | United States Postal Service | ARIN | allocation | 8,192 |
| 56.0.146.0/24 | US | USPS1 | United States Postal Service | ARIN | allocation | 256 |
| 56.0.151.0/24 | US | USPS1 | United States Postal Service | ARIN | allocation | 256 |
| 56.0.152.0/24 | US | USPS1 | United States Postal Service | ARIN | allocation | 256 |
| 56.0.155.0/24 | US | USPS1 | United States Postal Service | ARIN | allocation | 256 |
| 56.0.192.0/20 | US | USPS1 | United States Postal Service | ARIN | allocation | 4,096 |
| 56.0.208.0/20 | US | USPS1 | United States Postal Service | ARIN | allocation | 4,096 |
| 56.105.0.0/16 | US | USPS1 | United States Postal Service | ARIN | allocation | 65,536 |
| 56.105.64.0/18 | US | USPS1 | United States Postal Service | ARIN | allocation | 16,384 |
| 56.105.65.0/24 | US | USPS1 | United States Postal Service | ARIN | allocation | 256 |
| 56.105.67.0/24 | US | USPS1 | United States Postal Service | ARIN | allocation | 256 |
| 56.105.72.0/21 | US | USPS1 | United States Postal Service | ARIN | allocation | 2,048 |
| 56.105.80.0/22 | US | USPS1 | United States Postal Service | ARIN | allocation | 1,024 |
| 56.105.84.0/23 | US | USPS1 | United States Postal Service | ARIN | allocation | 512 |
| 56.105.108.0/22 | US | USPS1 | United States Postal Service | ARIN | allocation | 1,024 |
| 56.105.120.0/22 | US | USPS1 | United States Postal Service | ARIN | allocation | 1,024 |
| 56.105.128.0/24 | US | USPS1 | United States Postal Service | ARIN | allocation | 256 |
| 56.105.128.0/18 | US | USPS1 | United States Postal Service | ARIN | allocation | 16,384 |
| 56.105.129.0/24 | US | USPS1 | United States Postal Service | ARIN | allocation | 256 |
| 56.105.156.0/22 | US | USPS1 | United States Postal Service | ARIN | allocation | 1,024 |
| 56.105.164.0/22 | US | USPS1 | United States Postal Service | ARIN | allocation | 1,024 |
| 56.235.0.0/17 | US | USPS1 | United States Postal Service | ARIN | allocation | 32,768 |
| 56.235.128.0/17 | US | USPS1 | United States Postal Service | ARIN | allocation | 32,768 |
IPv6 Prefixes
| CIDR | Country | Network Name | Organization | Registry | Status |
|---|---|---|---|---|---|
| 2610:68::/32 | US | USPS1 | United States Postal Service | ARIN | allocation |
| 2610:68:4000::/34 | US | USPS1 | United States Postal Service | ARIN | allocation |
