205.156.136.0/21 Marsh Inc.
Announced by AS17161 Marsh Inc. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 205.156.136.0/21
Prefix
Origin
AS17161 MMC
RPKI
RPKI valid
Size
2,048 addresses
Less specific
none
More specifics
0
IRR route objects
3 exact, 1 covering
In RouteViews
2026-10-13 04:03 UTC
Paths
How 205.156.136.0/21 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 174 3257 17161
| Origin | AS17161 Marsh Inc. |
| Origin code | IGP |
| Communities | 174:21000 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 5d 2h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 3257 17161
| Origin | AS17161 Marsh Inc. |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 5d 11h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 1299 3257 17161
| Origin | AS17161 Marsh Inc. |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 5d 11h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS17161 to originate 205.156.136.0/21 up to /21. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 205.156.136.0/21 | /21 | AS17161 MMC | ARIN |
| 205.156.136.0/21 | /21 | AS19905 SECURITYSERVICES | 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 |
|---|---|---|---|---|
| 205.156.136.0/21 | AS17161 MMC | ARIN | DAL03 | MNT-MARSHI-1 |
| 205.156.136.0/21 | AS17161 MMC | RADB | MMC Inc. | MAINT-AS17161 |
| 205.156.136.0/21 | AS19905 SECURITYSERVICES | RADB | AC_MARSHMCLEN | MAINT-AS19905 |
| 205.156.128.0/18 covering | AS17161 MMC | RADB | PNAP-NYM chl-1 | MAINT-AS1828 |