ResearchRouting table, RPKI, IRR & looking glass

AS44546 ALFA TELECOM s.r.o.

AS44546 (ALFATELECOM-AS) is registered to ALFA TELECOM s.r.o. in CZ. It originates 14 prefixes in the global routing table.

14
IPv4 prefixes
0
IPv6 prefixes
526,848
IPv4 addresses
100%
RPKI valid

Who holds AS44546

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

AS number
AS44546
Handle
ALFATELECOM-AS
Organization
ALFA TELECOM s.r.o.
Country
CZ
ASPA
2 providers

What AS44546 announces

Prefixes originated by AS44546 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
14
IPv6 prefixes
0
IPv4 addresses
526,848 (2,058 /24s)
RPKI valid
14 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS44546
13
With an IRR route object
13 92%

Announced prefixes

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

Who AS44546 is reached through

The AS just before AS44546 in the paths our looking glass collectors hold, for 14 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Provider authorization

AS44546 publishes an ASPA naming these providers. Check a path.

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Sourceas-nameMaintained by
RIPEALFATELECOM-ASRIPE-NCC-END-MNT, RIPE-DB-MNT

Route objects with origin AS44546: RIPE 13

as-sets that list AS44546 (6)