ResearchRouting table, RPKI, IRR & looking glass

AS7256 Viacom Inc.

AS7256 (VIACOM-AS) is registered to Viacom Inc. in US. It originates 18 prefixes in the global routing table.

18
IPv4 prefixes
0
IPv6 prefixes
9,216
IPv4 addresses
0%
RPKI valid

Who holds AS7256

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

AS number
AS7256
Handle
VIACOM-AS
Organization
Viacom Inc.
Country
US
ASPA
None published

What AS7256 announces

Prefixes originated by AS7256 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
18
IPv6 prefixes
0
IPv4 addresses
9,216 (36 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
18
ROAs naming AS7256
0
With an IRR route object
1 5%

Announced prefixes

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

Who AS7256 is reached through

The AS just before AS7256 in the paths our looking glass collectors hold, for 18 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
ARINVIACOM-ASMNT-VIACO-3

Route objects with origin AS7256: RADB 15 · LEVEL3 2 · ARIN 1

as-sets that list AS7256 (4)