ResearchRouting table, RPKI, IRR & looking glass

AS33741 Dennis Group

AS33741 (DENNIS-GROUP) is registered to Dennis Group in US. It originates 9 prefixes in the global routing table.

6
IPv4 prefixes
3
IPv6 prefixes
1,280
IPv4 addresses
100%
RPKI valid

Who holds AS33741

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

AS number
AS33741
Handle
DENNIS-GROUP
Organization
Dennis Group
Country
US
ASPA
None published

What AS33741 announces

Prefixes originated by AS33741 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
6
IPv6 prefixes
3
IPv4 addresses
1,280 (5 /24s)
RPKI valid
9 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS33741
17
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 AS33741 is reached through

The AS just before AS33741 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.

Route objects with origin AS33741: ARIN 17 · RADB 2 · BELL 1

as-sets that list AS33741 (5)