AS209Lumen (ex. Qwest)
United StatesRegistryARINTypeEyeballAs of 26th September 2026, AS209 (Lumen (ex. Qwest)), an access network registered in the United States with ARIN, originates 1,590 IPv4 prefixes covering 26.2M addresses and 32 IPv6 prefixes. By IPv4 address space that makes it the 22nd-largest of the 79,516 networks we see originating IPv4, and the 13th-largest of 18,424 in the United States. It is seen behind 1 upstream network, most often AS3356 (Lumen (Level 3)), and in front of 296 downstream networks. Under 1% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. Over 99% of its routes reach at least 90% of full-feed peers, and 5 prefixes are also originated by another network.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS209 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS209 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
644
adjacent networks
- Upstreams
- 10%
- Peers
- 34754%
- Downstreams
- 29646%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS3356Lumen (Level 3) | US | Peer | 251,535 | 145 |
Prefixes
All 1,622The largest blocks AS209 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 65.128.0.0/11 | 2.1M | 79/81 |
| 63.144.0.0/12 | 1M | 78/81 |
| 63.224.0.0/12 | 1M | 80/81 |
| 65.112.0.0/12 | 1M | 80/81 |
| 71.208.0.0/12 | 1M | 80/81 |
| 75.160.0.0/12 | 1M | 79/81 |
| 97.112.0.0/12 | 1M | 80/81 |
| 174.16.0.0/12 | 1M | 80/81 |
| 67.0.0.0/13 | 524k | 80/81 |
| 67.128.0.0/13 | 524k | 79/81 |
Routing health
How AS209'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
- Valid0.9%14
- Invalid0.0%0
- No ROA99.1%1,608
Propagation
- Globally propagated90% of full-feed peers or more99.7%1,617
- Partially propagated40% to 90%0.2%4
- Seen by few peersUnder 40%<0.1%1
Prefix sizes
IPv4 — 1,590 prefixes
- /112.1M addresses<0.1%1
- /121M addresses0.4%7
- /13524k addresses0.5%8
- /14262k addresses0.4%6
- /15131k addresses1.1%17
- /1665.5k addresses4.8%77
- /1732.8k addresses1.8%28
- /1816.4k addresses2.8%44
- /198.2k addresses5.3%84
- /204.1k addresses9.2%146
- /212k addresses11.2%178
- /221k addresses12.5%199
- /23512 addresses14.5%230
- /24256 addresses35.5%565
IPv6 — 32 prefixes
- /241.1T × /643.1%1
- /324.3B × /6412.5%4
- /3933.6M × /6481.3%26
- /46262k × /643.1%1
Recent changes
Announcements that started or stopped since 28th Aug 2026.
- Announced208.7.222.0/2422nd Sept 2026
- Withdrawn192.84.85.0/2421st Sept 2026
- Withdrawn209.180.156.0/2421st Sept 2026
- Withdrawn216.106.141.0/2421st Sept 2026
- Withdrawn64.92.167.0/2421st Sept 2026
- Withdrawn71.39.248.0/2221st Sept 2026
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.