ResearchRouting table, looking glass, RPKI & IRR

12.204.192.0/19

Nobody announces 12.204.192.0/19 on its own; it is covered by 12.128.0.0/9 AS7018 ATT-INTERNET4. Seen by 0 of our 5 looking glass sessions.

Summary

What the table says about 12.204.192.0/19

Prefix
12.204.192.0/19
Origin
not announced
Size
8,192 addresses
Less specific
12.128.0.0/9 AS7018 ATT-INTERNET4
More specifics
8
IRR route objects
1 exact, 2 covering
RPKI

Route origin authorizations

No ROA covers this prefix. Validate another origin.

IRR

Route objects

Registered in the IRR for this prefix and the ones covering it. Look it up live.

RouteOriginSourceDescriptionMaintained by
12.204.192.0/19AS22561 CENTURYLINK-LEGACY-LIGHTCORELEVEL3add routeLIGHTCORE-MNT
12.128.0.0/9 coveringAS7018 ATT-INTERNET4ARIN12/8 upper halfMNT-AEL-360
12.0.0.0/8 coveringAS7018 ATT-INTERNET4ARINATT_NET-TWELVEMNT-AEL-360
Less specific

Covering prefixes

Announced prefixes that contain this one, most specific first.

12.128.0.0/9 AS7018 ATT-INTERNET412.0.0.0/8 AS7018 ATT-INTERNET4
More specific

Prefixes inside 12.204.192.0/19

8 announced prefixes fall inside this one.

Show the 8 prefixes
12.204.192.0/20 AS19957 STATE-OF-TENNESSEE-NETTN12.204.200.0/24 AS16989 UTHSC12.204.201.0/24 AS19957 STATE-OF-TENNESSEE-NETTN12.204.206.0/24 AS19957 STATE-OF-TENNESSEE-NETTN12.204.208.0/20 AS19957 STATE-OF-TENNESSEE-NETTN12.204.208.0/24 AS19957 STATE-OF-TENNESSEE-NETTN12.204.209.0/24 AS19957 STATE-OF-TENNESSEE-NETTN12.204.216.0/21 AS19957 STATE-OF-TENNESSEE-NETTN
Tools

Check 12.204.192.0/19 live

Looking glassIP to ASN APIRPKI APIIRR API