ResearchRouting table, RPKI, IRR & looking glass

AS33540 Alzheimers Assoc.

AS33540 (ALZHEI-ASN) is registered to Alzheimers Assoc. in US. It originates 1 prefix in the global routing table.

1
IPv4 prefixes
0
IPv6 prefixes
256
IPv4 addresses
0%
RPKI valid

Who holds AS33540

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

AS number
AS33540
Handle
ALZHEI-ASN
Organization
Alzheimers Assoc.
Country
US
ASPA
None published

What AS33540 announces

Prefixes originated by AS33540 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
1
IPv6 prefixes
0
IPv4 addresses
256 (1 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
1
ROAs naming AS33540
0
With an IRR route object
0 0%

Announced prefixes

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

IPv4 (1)

RPKI valid   RPKI invalid   no ROA covers it

Who AS33540 is reached through

The AS just before AS33540 in the paths our looking glass collectors hold, for 1 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
ARINALZ-ASMNT-ALZHEI

Route objects with origin AS33540: RADB 1

as-sets that list AS33540 (3)