U.S. Department of Health & Human Services
Data as of 2026-10-18
BGP inherited
This organisation
| Netblocks | 14 · 2,560 IPv4 addresses |
| IPv6 | 3 prefixes (largest 2607:f220:10::/44) |
| Also registered under this name | 509 netblocks across 18 separate records |
| Record ID | 250236961 |
| Registry | BGP |
| Customers | see who runs inside this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 8 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 (14)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 156.40.93.0 – 156.40.95.255 | U.S. Department of Health & Human Services | ARIN | DIRECT ALLOCATION | ● high |
| 156.40.93.0/24 | U.S. Department of Health & Human Services | BGP | ANNOUNCED | ● high |
| 156.40.94.0/24 | U.S. Department of Health & Human Services | BGP | ANNOUNCED | ● high |
| 156.40.95.0/24 | U.S. Department of Health & Human Services | BGP | ANNOUNCED | ● high |
| 156.40.197.0/24 | U.S. Department of Health & Human Services | ARIN | DIRECT ALLOCATION | ● high |
| 156.40.246.0/24 | U.S. Department of Health & Human Services | BGP | ANNOUNCED | ● high |
| 158.71.224.0/24 | U.S. Department of Health & Human Services | BGP | ANNOUNCED | ● low |
| 158.73.30.0/24 | U.S. Department of Health & Human Services | BGP | ANNOUNCED | ● low |
| 158.73.183.0/24 | U.S. Department of Health & Human Services | BGP | ANNOUNCED | ● low |
| 158.73.196.0/24 | U.S. Department of Health & Human Services | BGP | ANNOUNCED | ● low |
| 158.74.38.0/24 | U.S. Department of Health & Human Services | BGP | ANNOUNCED | ● low |
| 2607:f220:10::/44 | U.S. Department of Health & Human Services | BGP | ANNOUNCED | ● low |
| 2607:f220:f1::/48 | U.S. Department of Health & Human Services | BGP | ANNOUNCED | ● low |
| 2607:f220:200::/48 | U.S. Department of Health & Human Services | BGP | ANNOUNCED | ● low |
IPv6 ranges (3)
Footprint over time
12 weekly snapshots · JSON
15
+2 netblocks since 2026-07-26
2026-07-26
peak 15
2026-10-18
Network trust
what's this?
RPKI hygiene: D
how networks compare →
40.0%
of checked blocks have valid RPKI ROA coverage
(6 of 15)
No discrepancies found among checked blocks.
NIC Handles
AS19050
NIHAD-ARIN
NIHAD-ARIN
NIHAD-ARIN
NIHTE-ARIN
NIHTE-ARIN
NIHTE-ARIN
UDHHS-4