136.57.0.0/20 Google Fiber Inc.
Announced by AS16591 Google Fiber Inc. RPKI valid Seen by 2 of our 5 looking glass sessions.
Summary
What the table says about 136.57.0.0/20
Prefix
Origin
AS16591 GOOGLE-FIBER
RPKI
RPKI valid
Size
4,096 addresses
Less specific
More specifics
0
IRR route objects
1 exact, 2 covering
In RouteViews
2026-10-12 12:02 UTC
Paths
How 136.57.0.0/20 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.
RPKI
Route origin authorizations
Covered by a ROA authorizing AS16591 to originate 136.57.0.0/20 up to /20. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 136.57.0.0/20 | /20 | AS16591 GOOGLE-FIBER | ARIN |
| 136.32.0.0/11 | /11 | AS16591 GOOGLE-FIBER | 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 |
|---|---|---|---|---|
| 136.57.0.0/20 | AS16591 GOOGLE-FIBER | ARIN | Google Fiber Inc. | MNT-GF |
| 136.32.0.0/11 covering | AS16591 GOOGLE-FIBER | ARIN | Google Fiber Inc. | MNT-GF |
| 136.32.0.0/11 covering | AS16591 GOOGLE-FIBER | RADB | MAINT-AS16591 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.