SUBNET.IM

AS399256Fontana Unified School District

United StatesRegistryARIN

At a glance

IPv4 prefixes

3

IPv6 prefixes

0

IPv4 addresses

1k

IPv6 /64s

0

Upstream graph

The networks AS399256 is seen behind, one and two hops out, drawn from real AS paths.

AS399256Toward the internet core
Upstream graph for AS399256: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS399256Fontana Unified S…This networkAS20001Charter Communica…AS46887Zayo BandwidthAS7843Charter Communica…AS20115Charter Communica…AS3356Lumen (Level 3)AS6461Zayo Bandwidth

Networks observed one and two hops upstream of AS399256 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

4

adjacent networks

Upstreams
250%
Peers
250%
Downstreams
00%

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

Upstreams of AS399256
NetworkCountryRelationshipPathsVantage pts
AS46887Zayo BandwidthUSPeer13180
AS20001Charter Communications IncUSPeer10980

Prefixes

The largest blocks AS399256 originates, widest first.

Largest prefixes originated by AS399256
PrefixAddressesVisibility
208.64.34.0/2351280/80
208.64.34.0/2425680/80
208.64.35.0/2425680/80

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