12.43.89.0/24 AT&T Enterprises, LLC
Announced by AS2386 AT&T Enterprises, LLC. RPKI invalid Seen by 2 of our 5 looking glass sessions.
Summary
What the table says about 12.43.89.0/24
Prefix
Origin
AS2386 INS-AS
RPKI
RPKI invalid
Size
256 addresses
Less specific
More specifics
0
IRR route objects
0 exact, 4 covering
In RouteViews
2026-10-12 16:02 UTC
Paths
How 12.43.89.0/24 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.
RPKI
Route origin authorizations
AS2386 does hold a ROA covering this prefix, but the announcement is more specific than that ROA's maximum length allows. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 12.43.88.0/22 | /22 | AS2386 INS-AS | 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 |
|---|---|---|---|---|
| 12.43.88.0/22 covering | AS2386 INS-AS | ARIN | AT&T Enterprises, LLC | MNT-AEL-360 |
| 12.43.88.0/22 covering | AS2386 INS-AS | RADB | Akamai Technologies, Inc | MAINT-AS32787 |
| 12.0.0.0/9 covering | AS7018 ATT-INTERNET4 | ARIN | 12/8 lower half | MNT-AEL-360 |
| 12.0.0.0/8 covering | AS7018 ATT-INTERNET4 | ARIN | ATT_NET-TWELVE | MNT-AEL-360 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.