ResearchRouting table, RPKI, IRR & looking glass

AS20231 Charter Communications Inc

AS20231 (TWC-20231-NE-KS-C3) is registered to Charter Communications Inc in US. It originates 9 prefixes in the global routing table.

7
IPv4 prefixes
2
IPv6 prefixes
22,016
IPv4 addresses
100%
RPKI valid

Who holds AS20231

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS20231
Handle
TWC-20231-NE-KS-C3
Organization
Charter Communications Inc
Country
US
ASPA
None published

What AS20231 announces

Prefixes originated by AS20231 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
7
IPv6 prefixes
2
IPv4 addresses
22,016 (86 /24s)
RPKI valid
9 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS20231
77
With an IRR route object
9 100%

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

Who AS20231 is reached through

The AS just before AS20231 in the paths our looking glass collectors hold, for 9 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Sourceas-nameMaintained by
ARINCharter-Communications-TWC-20231-NE-KS-C3MNT-CC-3517
RADBRoadRunnerMAINT-RR

Route objects with origin AS20231: ARIN 71 · LEVEL3 24 · RADB 15

as-sets that list AS20231 (10)