ResearchRouting table, RPKI, IRR & looking glass

AS57544 Zfort LLC

AS57544 (ZFORT-AS) is registered to Zfort LLC in UA. It originates 1 prefix in the global routing table.

1
IPv4 prefixes
0
IPv6 prefixes
512
IPv4 addresses
100%
RPKI valid

Who holds AS57544

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

AS number
AS57544
Handle
ZFORT-AS
Organization
Zfort LLC
Country
UA
ASPA
1 provider

What AS57544 announces

Prefixes originated by AS57544 in the routing table our collectors hold (kept current as routes change), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
1
IPv6 prefixes
0
IPv4 addresses
512 (2 /24s)
RPKI valid
1 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS57544
1
With an IRR route object
1 100%

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 AS57544 buys transit from

Inferred from the AS paths in the RouteViews tables and our own collectors’ feeds, refreshed every 4 hours, most-seen first. 1 upstream; those marked ASPA are also named in its ASPA.

Who buys transit from AS57544

None seen: AS57544 does not appear to provide transit to anyone.

Provider authorization

AS57544 publishes an ASPA naming this provider. Check a path.

Routing registry objects

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

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

Route objects with origin AS57544: RIPE 1

as-sets that list AS57544 (5)