SUBNET.IM

AS27521CATCOMM INTERNET SERVICES, LLC

United StatesRegistryARIN

At a glance

IPv4 prefixes

25

IPv6 prefixes

0

IPv4 addresses

6.4k

IPv6 /64s

0

Upstream graph

The networks AS27521 is seen behind, one and two hops out, drawn from real AS paths.

AS27521Toward the internet core
Upstream graph for AS27521: 8 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS27521CATCOMM INTERNET …This networkAS1000LINK AMERICANAS3356Lumen (Level 3)AS13760Uniti Fiber Holdi…AS174Cogent Communicat…AS6453TATA Communicatio…AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS7029Windstream Commun…

Networks observed one and two hops upstream of AS27521 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 AS27521
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer1,65879
AS13760Uniti Fiber Holdings Inc.USPeer32080
AS1000LINK AMERICANUSPeer11

Prefixes

The largest blocks AS27521 originates, widest first.

Largest prefixes originated by AS27521
PrefixAddressesVisibility
64.39.64.0/2425679/80
64.39.65.0/2425679/80
64.39.66.0/2425679/80
64.39.69.0/2425679/80
64.39.71.0/2425679/80
64.39.72.0/2425680/80
64.39.73.0/2425680/80
64.39.74.0/2425680/80
64.39.76.0/2425679/80
64.39.77.0/2425680/80

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