76.239.144.0/21 IsoTropic Networks, Inc.
Announced by AS36426 IsoTropic Networks, Inc. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 76.239.144.0/21
Prefix
Origin
AS36426 ISOTRASN
RPKI
RPKI valid
Size
2,048 addresses
Less specific
More specifics
0
IRR route objects
2 exact, 1 covering
In RouteViews
2026-10-13 12:02 UTC
Paths
How 76.239.144.0/21 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 7018 36426
| Origin | AS36426 IsoTropic Networks, Inc. |
| Origin code | IGP |
| Communities | 174:21000 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 5d 13h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 7018 36426
| Origin | AS36426 IsoTropic Networks, Inc. |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 5d 21h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 7018 36426
| Origin | AS36426 IsoTropic Networks, Inc. |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 5d 21h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS36426 to originate 76.239.144.0/21 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 76.239.144.0/21 | /24 | AS36426 ISOTRASN | ARIN |
| 76.239.0.0/16 | /16 | AS7018 ATT-INTERNET4 | 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 |
|---|---|---|---|---|
| 76.239.144.0/21 | AS36426 ISOTRASN | ARIN | AT&T Enterprises, LLC | MNT-AEL-360 |
| 76.239.144.0/21 | AS36426 ISOTRASN | RADB | RR-RC-IsoTropic Networks, Inc.-Milwaukee | MAINT-RR |
| 76.239.0.0/16 covering | AS7018 ATT-INTERNET4 | ARIN | AT&T Enterprises, LLC | MNT-AEL-360 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.