66.240.56.0/21
Nobody announces 66.240.56.0/21 on its own; it is covered by 66.240.0.0/18 AS7922 COMCAST-7922. Seen by 0 of our 5 looking glass sessions.
Summary
What the table says about 66.240.56.0/21
Prefix
Origin
not announced
Size
2,048 addresses
Less specific
More specifics
1
IRR route objects
1 exact, 2 covering
RPKI
Route origin authorizations
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 66.240.0.0/18 | /18 | AS7922 COMCAST-7922 | 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 |
|---|---|---|---|---|
| 66.240.56.0/21 | AS13385 COMCAST-TELECOMM | LEVEL3 | Comcast Commercial Services - Chicago IL Agg Route | CTI-MNT |
| 66.240.0.0/18 covering | AS13385 COMCAST-TELECOMM | LEVEL3 | CBC_Agg_3 | CTI-MNT |
| 66.240.0.0/18 covering | AS7922 COMCAST-7922 | RADB | Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 | MAINT-AS7922 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.
More specific
Prefixes inside 66.240.56.0/21
1 announced prefix fall inside this one.