SUBNET.IM

AS21881RAPID RESPONSE MONITORING SERVICES INCORPORATED

United StatesRegistryARIN

At a glance

IPv4 prefixes

4

IPv6 prefixes

0

IPv4 addresses

1.1k

IPv6 /64s

0

Upstream graph

The networks AS21881 is seen behind, one and two hops out, drawn from real AS paths.

AS21881Toward the internet core
Upstream graph for AS21881: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS21881RAPID RESPONSE MO…This networkAS701Verizon BusinessAS3356Lumen (Level 3)AS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS3549Lumen (fka. Globa…

Networks observed one and two hops upstream of AS21881 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 AS21881
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer23679
AS701Verizon BusinessUSPeer31

Prefixes

The largest blocks AS21881 originates, widest first.

Largest prefixes originated by AS21881
PrefixAddressesVisibility
216.151.46.0/2351279/80
216.151.46.0/2425679/80
216.151.47.0/2425680/80
174.46.231.128/26641/80

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