ResearchRouting table, RPKI, IRR & looking glass

AS4783 SYSTEX CORPORATION

AS4783 (SYSNET-AS1) is registered to SYSTEX CORPORATION in TW. It originates 7 prefixes in the global routing table.

7
IPv4 prefixes
0
IPv6 prefixes
40,960
IPv4 addresses
100%
RPKI valid

Who holds AS4783

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

AS number
AS4783
Handle
SYSNET-AS1
Organization
SYSTEX CORPORATION
Country
TW
ASPA
None published

What AS4783 announces

Prefixes originated by AS4783 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
7
IPv6 prefixes
0
IPv4 addresses
40,960 (160 /24s)
RPKI valid
7 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS4783
10
With an IRR route object
3 42%

Announced prefixes

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

Who AS4783 is reached through

The AS just before AS4783 in the paths our looking glass collectors hold, for 7 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.