ResearchRouting table, RPKI, IRR & looking glass

AS204897 COMMUNAUTE URBAINE GRAND BESANCON METROPOLE

AS204897 (BESANCON) is registered to COMMUNAUTE URBAINE GRAND BESANCON METROPOLE in FR. It originates 1 prefix in the global routing table.

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

Who holds AS204897

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

AS number
AS204897
Handle
BESANCON
Organization
COMMUNAUTE URBAINE GRAND BESANCON METROPOLE
Country
FR
ASPA
None published

What AS204897 announces

Prefixes originated by AS204897 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 AS204897
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 AS204897 is reached through

The AS just before AS204897 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
RIPEBESANCONRIPE-NCC-END-MNT, LIR-FR-BESANCON-METROPOLE-1-MNT

Route objects with origin AS204897: RIPE 1

as-sets that list AS204897 (2)