ResearchRouting table, RPKI, IRR & looking glass

AS1224 University of Illinois

AS1224 (NCSA-AS) is registered to University of Illinois in US. It originates 3 prefixes in the global routing table.

2
IPv4 prefixes
1
IPv6 prefixes
65,792
IPv4 addresses
33%
RPKI valid

Who holds AS1224

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

AS number
AS1224
Handle
NCSA-AS
Organization
University of Illinois
Country
US
ASPA
None published

What AS1224 announces

Prefixes originated by AS1224 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
1
IPv4 addresses
65,792 (257 /24s)
RPKI valid
1 33%
RPKI invalid
0
RPKI not found
2
ROAs naming AS1224
1
With an IRR route object
3 100%

Announced prefixes

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

IPv4 (2)
IPv6 (1)

RPKI valid   RPKI invalid   no ROA covers it

Who AS1224 is reached through

The AS just before AS1224 in the paths our looking glass collectors hold, for 3 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
RADBASN-NCSAMAINT-AS38

Route objects with origin AS1224: RADB 4 · NTTCOM 1

as-sets that list AS1224 (11)