SUBNET.IM

AS1999U.S. House of Representatives

United StatesRegistryARIN

At a glance

IPv4 prefixes

7

IPv6 prefixes

1

IPv4 addresses

198k

IPv6 /64s

262k

Upstream graph

The networks AS1999 is seen behind, one and two hops out, drawn from real AS paths.

AS1999Toward the internet core
Upstream graph for AS1999: 10 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS1999U.S. House of Rep…This networkAS1000LINK AMERICANAS3356Lumen (Level 3)AS7018AT&T Enterprises,…AS12025Iron Mountain Dat…AS174Cogent Communicat…AS6453TATA Communicatio…AS3549Lumen (fka. Globa…AS2914NTT America, Inc.AS1299Arelion (fka. Tel…AS6461Zayo Bandwidth

Networks observed one and two hops upstream of AS1999 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

8

adjacent networks

Upstreams
450%
Peers
450%
Downstreams
00%

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

Upstreams of AS1999
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer30180
AS7018AT&T Enterprises, LLCUSPeer236142
AS12025Iron Mountain Data CentersUSPeer8080
AS1000LINK AMERICANUSPeer11

Prefixes

The largest blocks AS1999 originates, widest first.

Largest prefixes originated by AS1999
PrefixAddressesVisibility
137.18.0.0/1665.5k79/80
143.228.0.0/1665.5k79/80
143.231.0.0/1665.5k79/80
74.119.128.0/2425679/80
74.119.130.0/2425680/80
74.119.131.0/2425680/80
143.228.193.0/2425680/80
2620:0:e20::/46262k × /6462/62

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