SUBNET.IM

AS21520Instituto Tecnologico Autonomo de Mexico(ITAM)

MexicoRegistryLACNIC

At a glance

IPv4 prefixes

22

IPv6 prefixes

0

IPv4 addresses

20.7k

IPv6 /64s

0

Upstream graph

The networks AS21520 is seen behind, one and two hops out, drawn from real AS paths.

AS21520Toward the internet core
Upstream graph for AS21520: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS21520Instituto Tecnolo…This networkAS1000LINK AMERICANAS18734Operbes, S.A. de …AS174Cogent Communicat…AS6453TATA Communicatio…AS1299Arelion (fka. Tel…AS6461Zayo Bandwidth

Networks observed one and two hops upstream of AS21520 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

5

adjacent networks

Upstreams
240%
Peers
360%
Downstreams
00%

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

Upstreams of AS21520
NetworkCountryRelationshipPathsVantage pts
AS18734Operbes, S.A. de C.V.MXPeer1,75880
AS1000LINK AMERICANUSPeer11

Prefixes

The largest blocks AS21520 originates, widest first.

Largest prefixes originated by AS21520
PrefixAddressesVisibility
148.205.56.0/212k80/80
148.205.104.0/212k80/80
148.205.36.0/221k80/80
148.205.40.0/221k80/80
148.205.48.0/221k80/80
148.205.64.0/221k80/80
148.205.68.0/221k80/80
148.205.72.0/221k80/80
148.205.112.0/221k80/80
148.205.132.0/221k80/80

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