ResearchRouting table, RPKI, IRR & looking glass

AS20203 First Financial Bank NA

AS20203 (FIRST-FINANCIAL-BANK-NA) is registered to First Financial Bank NA in US. It originates 2 prefixes in the global routing table.

2
IPv4 prefixes
0
IPv6 prefixes
512
IPv4 addresses
100%
RPKI valid

Who holds AS20203

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

AS number
AS20203
Handle
FIRST-FINANCIAL-BANK-NA
Organization
First Financial Bank NA
Country
US
ASPA
None published

What AS20203 announces

Prefixes originated by AS20203 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
2
IPv6 prefixes
0
IPv4 addresses
512 (2 /24s)
RPKI valid
2 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS20203
2
With an IRR route object
2 100%

Announced prefixes

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

IPv4 (2)

RPKI valid   RPKI invalid   no ROA covers it

Who AS20203 is reached through

The AS just before AS20203 in the paths our looking glass collectors hold, for 2 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
RADBAS20203MAINT-AS20203

Route objects with origin AS20203: ARIN 2 · RADB 2

as-sets that list AS20203 (12)