ResearchRouting table, RPKI, IRR & looking glass

AS203133 Optimas OE Solutions LTD

AS203133 (Optimas_UK) is registered to Optimas OE Solutions LTD in GB. It originates 1 prefix in the global routing table.

1
IPv4 prefixes
0
IPv6 prefixes
256
IPv4 addresses
100%
RPKI valid

Who holds AS203133

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

AS number
AS203133
Handle
Optimas_UK
Organization
Optimas OE Solutions LTD
Country
GB
ASPA
None published

What AS203133 announces

Prefixes originated by AS203133 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
1
IPv6 prefixes
0
IPv4 addresses
256 (1 /24s)
RPKI valid
1 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS203133
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 AS203133 is reached through

The AS just before AS203133 in the paths our looking glass collectors hold, for 1 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
RIPEOptimas_UKRIPE-NCC-END-MNT, LIR-UK-OPTIMAS-1-MNT

Route objects with origin AS203133: RIPE 1

as-sets that list AS203133 (4)