ResearchRouting table, RPKI, IRR & looking glass

AS48638 Cronos NV

AS48638 (CRONOS) is registered to Cronos NV in BE. It originates 7 prefixes in the global routing table.

6
IPv4 prefixes
1
IPv6 prefixes
7,168
IPv4 addresses
100%
RPKI valid

Who holds AS48638

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

AS number
AS48638
Handle
CRONOS
Organization
Cronos NV
Country
BE
ASPA
4 providers

What AS48638 announces

Prefixes originated by AS48638 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
6
IPv6 prefixes
1
IPv4 addresses
7,168 (28 /24s)
RPKI valid
7 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS48638
7
With an IRR route object
7 100%

Announced prefixes

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

Who AS48638 buys transit from

Inferred from the AS paths in the RouteViews tables and our own collectors’ feeds, refreshed every 4 hours, most-seen first. 8 upstreams; those marked ASPA are also named in its ASPA.

Who buys transit from AS48638

2 downstreams, its customers.

Provider authorization

AS48638 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
RIPECRONOSRIPE-NCC-END-MNT, MNT-CRONOSNV01

Route objects with origin AS48638: RIPE 7

as-sets that list AS48638 (7)