12.127.255.255/32 AT&T Enterprises, LLC
Announced by AS7018 AT&T Enterprises, LLC. RPKI invalid Seen by 0 of our 5 looking glass sessions.
Summary
What the table says about 12.127.255.255/32
Prefix
Origin
AS7018 ATT-INTERNET4
RPKI
RPKI invalid
Size
1 addresses
Less specific
More specifics
0
IRR route objects
0 exact, 3 covering
In RouteViews
2026-10-14 04:02 UTC
RPKI
Route origin authorizations
AS7018 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 |
|---|---|---|---|
| 12.112.0.0/12 | /12 | AS7018 ATT-INTERNET4 | 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 |
|---|---|---|---|---|
| 12.112.0.0/12 covering | AS7018 ATT-INTERNET4 | ARIN | AT&T Enterprises, LLC | MNT-AEL-360 |
| 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.