ResearchRouting table, RPKI, IRR & looking glass

AS197545 Era4 Limited

AS197545 (Era4-ASN) is registered to Era4 Limited in GB. It originates 5 prefixes in the global routing table.

2
IPv4 prefixes
3
IPv6 prefixes
16,384
IPv4 addresses
100%
RPKI valid

Who holds AS197545

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

AS number
AS197545
Handle
Era4-ASN
Organization
Era4 Limited
Country
GB
ASPA
3 providers

What AS197545 announces

Prefixes originated by AS197545 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
2
IPv6 prefixes
3
IPv4 addresses
16,384 (64 /24s)
RPKI valid
5 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS197545
2
With an IRR route object
5 100%

Announced prefixes

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

IPv4 (2)
IPv6 (3)

RPKI valid   RPKI invalid   no ROA covers it

Who AS197545 is reached through

The AS just before AS197545 in the paths our looking glass collectors hold, for 5 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Provider authorization

AS197545 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
RIPEEra4-ASNRIPE-NCC-END-MNT, LIR-UK-ERA4LIMITED-1-MNT

Route objects with origin AS197545: RIPE 8

as-sets that list AS197545 (4)