ResearchRouting table, RPKI, IRR & looking glass

AS56450 Alberon Letohrad s.r.o

AS56450 (ALBERON_AS) is registered to Alberon Letohrad s.r.o in CZ. It originates 3 prefixes in the global routing table.

2
IPv4 prefixes
1
IPv6 prefixes
4,096
IPv4 addresses
100%
RPKI valid

Who holds AS56450

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

AS number
AS56450
Handle
ALBERON_AS
Organization
Alberon Letohrad s.r.o
Country
CZ
ASPA
None published

What AS56450 announces

Prefixes originated by AS56450 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
1
IPv4 addresses
4,096 (16 /24s)
RPKI valid
3 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS56450
3
With an IRR route object
2 66%

Announced prefixes

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

IPv4 (2)
IPv6 (1)

RPKI valid   RPKI invalid   no ROA covers it

Who AS56450 is reached through

The AS just before AS56450 in the paths our looking glass collectors hold, for 3 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
RIPEALBERON_ASRIPE-NCC-END-MNT, MNT-ALBERON

Route objects with origin AS56450: RIPE 2

as-sets that list AS56450 (3)