137.220.8.0/21 Springcom
Announced by AS397903 Springcom. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 137.220.8.0/21
Prefix
Origin
AS397903 SPRINGCOM-01
RPKI
RPKI valid
Size
2,048 addresses
Less specific
none
More specifics
0
IRR route objects
2 exact, 0 covering
In RouteViews
2026-10-14 16:02 UTC
Paths
How 137.220.8.0/21 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 397903
| Origin | AS397903 Springcom |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 6d 14h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 174 397903
| Origin | AS397903 Springcom |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 6d 22h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 174 397903
| Origin | AS397903 Springcom |
| Origin code | IGP |
| Communities | 6461:5997 36295:100 36295:6461 |
| Updated | 40m 12s ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS397903 to originate 137.220.8.0/21 up to /21. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 137.220.8.0/21 | /21 | AS397903 SPRINGCOM-01 | 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 |
|---|---|---|---|---|
| 137.220.8.0/21 | AS397903 SPRINGCOM-01 | ALTDB | Proxy registration to prevent harm from ARIN-NONAUTH shutdown | MAINT-AS7034 |
| 137.220.8.0/21 | AS397903 SPRINGCOM-01 | ARIN | AS397903 origin prefix | MNT-SPRIN-146 |