ResearchRouting table, RPKI, IRR & looking glass

AS19157 Charter Communications LLC

AS19157 (CHARTER-19157-DC) is registered to Charter Communications LLC in US. It originates 10 prefixes in the global routing table.

10
IPv4 prefixes
0
IPv6 prefixes
4,352
IPv4 addresses
100%
RPKI valid

Who holds AS19157

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

AS number
AS19157
Handle
CHARTER-19157-DC
Organization
Charter Communications LLC
Country
US
ASPA
None published

What AS19157 announces

Prefixes originated by AS19157 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
10
IPv6 prefixes
0
IPv4 addresses
4,352 (17 /24s)
RPKI valid
10 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS19157
33
With an IRR route object
2 20%

Announced prefixes

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

Who AS19157 is reached through

The AS just before AS19157 in the paths our looking glass collectors hold, for 10 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-CHARTER-19157-DCMNT-CC04

Route objects with origin AS19157: ARIN 14 · RADB 1

as-sets that list AS19157 (9)