ResearchRouting table, RPKI, IRR & looking glass

AS3571 Ernst & Young LLP

AS3571 (EY-AS) is registered to Ernst & Young LLP in US. It originates 18 prefixes in the global routing table.

18
IPv4 prefixes
0
IPv6 prefixes
4,608
IPv4 addresses
5%
RPKI valid

Who holds AS3571

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

AS number
AS3571
Handle
EY-AS
Organization
Ernst & Young LLP
Country
US
ASPA
None published

What AS3571 announces

Prefixes originated by AS3571 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
4,608 (18 /24s)
RPKI valid
1 5%
RPKI invalid
0
RPKI not found
17
ROAs naming AS3571
1
With an IRR route object
18 100%

Announced prefixes

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

Who AS3571 is reached through

The AS just before AS3571 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.

Route objects with origin AS3571: ARIN 18

as-sets that list AS3571 (4)