ResearchRouting table, RPKI, IRR & looking glass

AS21975 LOOMIS SAYLES & CO., LP

AS21975 (LOOMISSAYLES) is registered to LOOMIS SAYLES & CO., LP in US. It originates 4 prefixes in the global routing table.

4
IPv4 prefixes
0
IPv6 prefixes
1,024
IPv4 addresses
100%
RPKI valid

Who holds AS21975

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

AS number
AS21975
Handle
LOOMISSAYLES
Organization
LOOMIS SAYLES & CO., LP
Country
US
ASPA
None published

What AS21975 announces

Prefixes originated by AS21975 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
4
IPv6 prefixes
0
IPv4 addresses
1,024 (4 /24s)
RPKI valid
4 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS21975
4
With an IRR route object
4 100%

Announced prefixes

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

IPv4 (4)

RPKI valid   RPKI invalid   no ROA covers it

Who AS21975 is reached through

The AS just before AS21975 in the paths our looking glass collectors hold, for 4 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
RADBCharterCommMAINT-CHTR-WD

Route objects with origin AS21975: RADB 6 · ARIN 4

as-sets that list AS21975 (9)