66.78.37.0/24 Zenlayer Inc
Announced by AS21859 Zenlayer Inc. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 66.78.37.0/24
Prefix
Origin
AS21859 ZEN-ECN
RPKI
RPKI valid
Size
256 addresses
Less specific
More specifics
0
IRR route objects
2 exact, 6 covering
In RouteViews
2026-10-12 20:02 UTC
Paths
How 66.78.37.0/24 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 174 6453 4229 21859
| Origin | AS21859 Zenlayer Inc |
| Origin code | IGP |
| Communities | 174:21000 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 4d 18h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 2914 4229 21859
| Origin | AS21859 Zenlayer Inc |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 5d 2h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 4229 21859
| Origin | AS21859 Zenlayer Inc |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 5d 2h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS21859 to originate 66.78.37.0/24 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 66.78.37.0/24 | /24 | AS21859 ZEN-ECN | 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 |
|---|---|---|---|---|
| 66.78.37.0/24 | AS21859 ZEN-ECN | ARIN | Used by EndUser | MNT-DCL-577 |
| 66.78.37.0/24 | AS21859 ZEN-ECN | RADB | autogen | MAINT-AS834 |
| 66.78.36.0/22 covering | AS55720 GIGABIT-MY | RADB | CMI (Customer Route) | MAINT-AS58453 |
| 66.78.32.0/21 covering | AS55720 GIGABIT-MY | RADB | Proxy-registered route object | MAINT-AS3491 |
| 66.78.32.0/20 covering | AS4436 AS-GTT-4436 | ALTDB | nLayer Communications, Inc. | MAINT-NLAYER |
| 66.78.32.0/20 covering | AS4436 AS-GTT-4436 | RADB | nLayer Communications, Inc. | MAINT-AS3257 |
| 66.78.0.0/18 covering | AS21769 AS-COLOAM | RADB | N | MAINT-AS35916 |
| 66.78.0.0/18 covering | AS35916 MULTA-ASN1 | RADB | CMI (Customer Route) | MAINT-AS58453 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.