156.40.197.0/24 U.S. Department of Health & Human Services
Announced by AS19050 U.S. Department of Health & Human Services. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 156.40.197.0/24
Prefix
Origin
AS19050 TIC-DHHS-INTERIOR
RPKI
RPKI valid
Size
256 addresses
Less specific
More specifics
0
IRR route objects
1 exact, 3 covering
In RouteViews
2026-10-15 04:02 UTC
Paths
How 156.40.197.0/24 is reached
Every path our looking glass collectors hold for this exact prefix. Open one for its attributes, or see them all side by side in the looking glass.
AS36601 TNT (TNT - Tampa, FL)Collector-1-TAMPA-FL36601 13760 3356 15029×3 19050
| Origin | AS19050 U.S. Department of Health & Human Services |
| Origin code | IGP |
| Communities | 202:202 3356:3 3356:22 3356:80 3356:123 3356:575 3356:901 3356:2057 19050:1322 36601:150 36601:2001 36601:13760 |
| Updated | 14m 30s ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 15029×3 19050
| Origin | AS19050 U.S. Department of Health & Human Services |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 14m 13s ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 3356 15029×3 19050
| Origin | AS19050 U.S. Department of Health & Human Services |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 14m 32s ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS19050 to originate 156.40.197.0/24 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 156.40.197.0/24 | /24 | AS19050 TIC-DHHS-INTERIOR | ARIN |
IRR
Route objects
Registered in the IRR for this prefix and the ones covering it. Look it up live.
| Route | Origin | Source | Description | Maintained by |
|---|---|---|---|---|
| 156.40.197.0/24 | AS19050 TIC-DHHS-INTERIOR | ARIN | HHS Trusted Internet Connection US | MNT-UDHHS-4 |
| 156.40.0.0/16 covering | AS70 NLM-GW | LEVEL3 | NLM.NIH.GOV maintainer | NLM-MNT |
| 156.40.0.0/16 covering | AS3527 NIH-NET | LEVEL3 | Proxy-registered route object | LEVEL3-MNT |
| 156.40.0.0/16 covering | AS3527 NIH-NET | RADB | Proxy-registered route object for NIH | MAINT-AS10886 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.