ResearchRouting table, RPKI, IRR & looking glass

AS55444 Cengage Learning Australia Pty Limited

AS55444 (CENGAGE-LEARNING-AS-AP) is registered to Cengage Learning Australia Pty Limited in AU. It originates 2 prefixes in the global routing table.

2
IPv4 prefixes
0
IPv6 prefixes
512
IPv4 addresses
0%
RPKI valid

Who holds AS55444

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

AS number
AS55444
Handle
CENGAGE-LEARNING-AS-AP
Organization
Cengage Learning Australia Pty Limited
Country
AU
ASPA
None published

What AS55444 announces

Prefixes originated by AS55444 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
0
IPv4 addresses
512 (2 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
2
ROAs naming AS55444
0
With an IRR route object
0 0%

Announced prefixes

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

IPv4 (2)

RPKI valid   RPKI invalid   no ROA covers it

Who AS55444 is reached through

The AS just before AS55444 in the paths our looking glass collectors hold, for 2 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
APNICCENGAGE-LEARNING-AS-APAPNIC-HM
as-sets that list AS55444 (3)