156.21.0.0/23 Progress Software Corp - CSG
Announced by AS31817 Progress Software Corp - CSG. RPKI not found Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 156.21.0.0/23
Prefix
Origin
AS31817 PSC
RPKI
RPKI not found
Size
512 addresses
Less specific
none
More specifics
0
IRR route objects
1 exact, 5 covering
In RouteViews
2026-10-15 04:02 UTC
Paths
How 156.21.0.0/23 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 17378 31817
| Origin | AS31817 Progress Software Corp - CSG |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 7d 4h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 17378 31817
| Origin | AS31817 Progress Software Corp - CSG |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 7d 12h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 17378 31817
| Origin | AS31817 Progress Software Corp - CSG |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 7d 12h ago |
RPKI
Route origin authorizations
No ROA covers this prefix, so RPKI has nothing to say about who may originate it. Validate another origin.
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 |
|---|---|---|---|---|
| 156.21.0.0/23 | AS31817 PSC | RADB | Progress Software Corporation | MAINT-AS27506 |
| 156.21.0.0/20 covering | AS10653 MVANET | ALTDB | Proxy-registered route object | MAINT-TOWARDEX |
| 156.21.0.0/20 covering | AS10653 MVANET | LEVEL3 | Proxy-registered route object | MAINT-TOWARDEX |
| 156.21.0.0/16 covering | AS10653 MVANET | ALTDB | Proxy-registered route object | MAINT-TOWARDEX |
| 156.21.0.0/16 covering | AS10653 MVANET | LEVEL3 | cus prefix | MAINT-TOWARDEX |
| 156.21.0.0/16 covering | AS23048 PROGRESS-SOFTWARE-CORP | RADB | Ipswitch Inc 10 Maguire Road Lexington, MA 02148 US | MAINT-AS6079 |