SUBNET.IM

AS21984Fairfax County Public Schools

United StatesRegistryARIN

At a glance

IPv4 prefixes

6

IPv6 prefixes

0

IPv4 addresses

131k

IPv6 /64s

0

Upstream graph

The networks AS21984 is seen behind, one and two hops out, drawn from real AS paths.

AS21984Toward the internet core
Upstream graph for AS21984: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS21984Fairfax County Pu…This networkAS6461Zayo BandwidthAS22773Cox Communication…AS6667Elisa OyjAS32590Valve CorporationAS1299Arelion (fka. Tel…AS3257GTT Communication…

Networks observed one and two hops upstream of AS21984 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 AS21984
NetworkCountryRelationshipPathsVantage pts
AS22773Cox Communications Inc.USPeer25280
AS6461Zayo BandwidthUSPeer22880

Prefixes

The largest blocks AS21984 originates, widest first.

Largest prefixes originated by AS21984
PrefixAddressesVisibility
151.188.0.0/1665.5k80/80
151.188.0.0/1816.4k80/80
151.188.64.0/1816.4k80/80
151.188.128.0/1816.4k80/80
151.188.192.0/1816.4k80/80
151.188.77.0/2425680/80

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