United States Postal Service
Data as of 2026-10-04
BGP inherited
This organisation
| Netblocks | 65 · 3,080,712 IPv4 addresses |
| IPv6 | 2 prefixes (largest 2610:68::/32) |
| Also registered under this name | 73 netblocks across 2 separate records |
| Record ID | 245688366 |
| Registry | BGP |
| Customers | see who runs inside this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 13 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
IP Ranges (65)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 56.0.0.0/16 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.0.32.0/20 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.0.64.0/19 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.0.91.0/24 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.0.95.0/24 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.0.103.0/24 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.0.128.0/19 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.0.146.0/24 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.0.151.0/24 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.0.152.0/24 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.0.155.0/24 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.0.192.0/20 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.0.208.0/20 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.37.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.42.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.64.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.72.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.75.0.0 – 56.78.255.255 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.83.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.88.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.94.0.0/15 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.105.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.105.64.0/18 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.105.65.0/24 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.105.67.0/24 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.105.72.0/21 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.105.80.0/22 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.105.84.0/23 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.105.108.0/22 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.105.120.0/22 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.105.128.0/24 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.105.128.0/18 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.105.129.0/24 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.105.156.0/22 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.105.164.0/22 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.111.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.120.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.135.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.140.0.0/14 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.148.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.158.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.170.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.175.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.179.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.181.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.189.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.192.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.198.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.201.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.203.0.0 – 56.207.255.255 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.220.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.222.0.0 – 56.224.255.255 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.226.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.235.0.0/17 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.235.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.235.128.0/17 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 56.237.0.0 – 56.238.255.255 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.251.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 56.253.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 63.148.204.248/29 | United States Postal Service | ARIN | ASSIGNMENT | ● high |
| 170.214.0.0/16 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 192.102.241.0/24 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 192.149.223.0/24 | United States Postal Service | ARIN | DIRECT ALLOCATION | ● high |
| 2610:68::/32 | United States Postal Service | BGP | ANNOUNCED | ● high |
| 2610:68:4000::/34 | United States Postal Service | BGP | ANNOUNCED | ● high |
IPv6 ranges (2)
Footprint over time
15 weekly snapshots · JSON
68
+6 netblocks since 2026-07-05
2026-07-05
peak 68
2026-10-04
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YOKLA1-ARIN
YOKLA1-ARIN
ZU38-ARIN
ZU38-ARIN
ZU38-ARIN
ZU38-ARIN
ZU38-ARIN
+1 more