Autonomous system
AS21508 COMCAST-21508
Unclassified ARIN
IPv4 addresses
689K
141 prefixes
IPv6 prefixes
71
counted as prefixes, not addresses
Countries
1
mostly US
Flagged prefixes
0
none
Address space
Summary
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 212 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS21508- Registry name
- COMCAST-21508
- Registrant
- Comcast Cable Communications, LLC
- Abuse contact
- abuse@comcast.net
- Registered
- 2001-05-16
- Last changed
- 2021-01-25
- Status
- active
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
No IC3 indicators Nothing from the FBI IC3 feed.
Threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere