AS397446Midwest Fiber Network, LLC
United StatesRegistryARINAs of 14th November 2026, AS397446 (Midwest Fiber Network, LLC), a network registered in the United States with ARIN, originates 10 IPv4 prefixes covering 4.4k addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 16,928th-largest of the 80,840 networks we see originating IPv4, and the 4,730th-largest of 18,773 in the United States. It is seen behind 1 upstream network, most often AS5056 (Aureon Network Services), and in front of 3 downstream networks. None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS397446 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS397446 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
- 113%
- Peers
- 450%
- Downstreams
- 338%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS5056Aureon Network Services | US | Peer | 2,366 | 142 |
Prefixes
The largest blocks AS397446 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 206.72.56.0/21 | 2k | 78/78 |
| 167.142.97.0/24 | 256 | 78/78 |
| 167.142.172.0/24 | 256 | 78/78 |
| 173.215.8.0/24 | 256 | 77/78 |
| 199.120.123.0/24 | 256 | 78/78 |
| 207.32.32.0/24 | 256 | 78/78 |
| 207.177.57.0/24 | 256 | 78/78 |
| 207.177.59.0/24 | 256 | 78/78 |
| 207.177.60.0/24 | 256 | 78/78 |
| 207.177.87.0/24 | 256 | 78/78 |
Routing health
How AS397446's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.
RPKI origin validation
- Valid0.0%0
- Invalid0.0%0
- No ROA100.0%12
Propagation
- Globally propagated90% of full-feed peers or more100.0%12
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%0.0%0
Prefix sizes
IPv4 — 10 prefixes
IPv6 — 2 prefixes
- /324.3B × /6450.0%1
- /4016.8M × /6450.0%1
Recent changes
Announcements that started or stopped since 15th Oct 2026.
No announcement by AS397446 started or stopped in this period.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.