SUBNET.IM

AS21975LOOMIS SAYLES & CO., LP

United StatesRegistryARIN

At a glance

IPv4 prefixes

4

IPv6 prefixes

0

IPv4 addresses

1k

IPv6 /64s

0

Upstream graph

The networks AS21975 is seen behind, one and two hops out, drawn from real AS paths.

AS21975Toward the internet core
Upstream graph for AS21975: 8 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS21975LOOMIS SAYLES & C…This networkAS7046Verizon BusinessAS23132Charter Communica…AS46887Zayo BandwidthAS701Verizon BusinessAS1321Verizon BusinessAS20115Charter Communica…AS3356Lumen (Level 3)AS6461Zayo Bandwidth

Networks observed one and two hops upstream of AS21975 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

7

adjacent networks

Upstreams
343%
Peers
457%
Downstreams
00%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS21975
NetworkCountryRelationshipPathsVantage pts
AS46887Zayo BandwidthUSPeer24080
AS23132Charter Communications LLCUSPeer5757
AS7046Verizon BusinessUSPeer2323

Prefixes

The largest blocks AS21975 originates, widest first.

Largest prefixes originated by AS21975
PrefixAddressesVisibility
63.104.155.0/2425680/80
63.118.230.0/2425680/80
65.196.54.0/2425680/80
65.196.55.0/2425680/80

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.