AS3Massachusetts Institute of Technology
United StatesRegistryARINTypeEyeballAt a glance
IPv4 prefixes
98
IPv6 prefixes
9
IPv4 addresses
1.9M
IPv6 /64s
38.7B
Upstream graph
The networks AS3 is seen behind, one and two hops out, drawn from real AS paths.
AS3Toward the internet core
Networks observed one and two hops upstream of AS3 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
42
adjacent networks
- Upstreams
- 1638%
- Peers
- 2457%
- Downstreams
- 25%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS3356Lumen (Level 3) | US | Peer | 3,970 | 61 |
| AS174Cogent Communications, LLC | US | Peer | 2,663 | 82 |
| AS6939Hurricane Electric LLC | US | Peer | 576 | 57 |
| AS208931Redimer Comunicaciones S. L. |  ES | Adjacent | 160 | 80 |
| AS7015Comcast Cable Communications, LLC | US | Peer | 104 | 4 |
| AS265886Plyx Banda Larga |  BR | Adjacent | 93 | 74 |
| AS293ESnet | US | Peer | 71 | 1 |
| AS268142MAXXTELECOM LTDA | BR | Adjacent | 48 | 48 |
| AS133384Global Technology Co., Ltd. |  MM | Adjacent | 38 | 38 |
| AS11537Internet2 | US | Peer | 32 | 1 |
Prefixes
All 107The largest blocks AS3 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 128.30.0.0/15 | 131k | 79/80 |
| 18.0.0.0/16 | 65.5k | 79/80 |
| 18.1.0.0/16 | 65.5k | 79/80 |
| 18.3.0.0/16 | 65.5k | 79/80 |
| 18.4.0.0/16 | 65.5k | 79/80 |
| 18.5.0.0/16 | 65.5k | 79/80 |
| 18.6.0.0/16 | 65.5k | 79/80 |
| 18.7.0.0/16 | 65.5k | 79/80 |
| 18.8.0.0/16 | 65.5k | 79/80 |
| 18.9.0.0/16 | 65.5k | 79/80 |
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.