AS40237United Telephone Company
United StatesRegistryARINAt a glance
IPv4 prefixes
10
IPv6 prefixes
1
IPv4 addresses
63.5k
IPv6 /64s
4.3B
Upstream graph
The networks AS40237 is seen behind, one and two hops out, drawn from real AS paths.
AS40237Toward the internet core
Networks observed one and two hops upstream of AS40237 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
30
adjacent networks
- Upstreams
- 517%
- Peers
- 1860%
- Downstreams
- 723%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS3356Lumen (Level 3) | US | Peer | 1,174 | 67 |
| AS1299Arelion (fka. Telia Carrier) |  SE | Peer | 864 | 87 |
| AS174Cogent Communications, LLC | US | Peer | 498 | 81 |
| AS6939Hurricane Electric LLC | US | Peer | 75 | 17 |
| AS49544i3D.net B.V |  NL | Peer | 23 | 2 |
Prefixes
The largest blocks AS40237 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 38.53.128.0/18 | 16.4k | 79/80 |
| 138.28.128.0/18 | 16.4k | 79/80 |
| 199.45.192.0/19 | 8.2k | 79/80 |
| 66.128.240.0/20 | 4.1k | 79/80 |
| 74.51.0.0/20 | 4.1k | 79/80 |
| 76.72.176.0/20 | 4.1k | 79/80 |
| 206.251.208.0/20 | 4.1k | 79/80 |
| 162.247.208.0/21 | 2k | 79/80 |
| 170.117.240.0/21 | 2k | 79/80 |
| 208.86.64.0/21 | 2k | 79/80 |
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.