ResearchRouting table, RPKI, IRR & looking glass

AS21527 Daystarr Communications

AS21527 (DAYSTARR-NET) is registered to Daystarr Communications in US. It originates 25 prefixes in the global routing table.

23
IPv4 prefixes
2
IPv6 prefixes
6,144
IPv4 addresses
100%
RPKI valid

Who holds AS21527

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

AS number
AS21527
Handle
DAYSTARR-NET
Organization
Daystarr Communications
Country
US
ASPA
None published

What AS21527 announces

Prefixes originated by AS21527 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
23
IPv6 prefixes
2
IPv4 addresses
6,144 (24 /24s)
RPKI valid
25 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS21527
6
With an IRR route object
17 68%

Who AS21527 is reached through

The AS just before AS21527 in the paths our looking glass collectors hold, for 25 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.