AS3549Lumen (fka. Global Crossing)
United StatesRegistryARINTypeCarrierAs of 26th September 2026, AS3549 (Lumen (fka. Global Crossing)), a transit carrier registered in the United States with ARIN, originates 796 IPv4 prefixes covering 5.4M addresses and 27 IPv6 prefixes. By IPv4 address space that makes it the 128th-largest of the 79,480 networks we see originating IPv4, and the 39th-largest of 18,421 in the United States. It is seen behind 3 upstream networks, most often AS3356 (Lumen (Level 3)) and AS22284 (U.S. Department of the Interior), and in front of 272 downstream networks. Under 1% of its announcements have a valid RPKI ROA; 4 are RPKI-invalid. 77% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS3549 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS3549 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
573
adjacent networks
- Upstreams
- 31%
- Peers
- 29852%
- Downstreams
- 27247%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS3356Lumen (Level 3) | US | Peer | 99,495 | 144 |
| AS22284U.S. Department of the Interior | US | Peer | 2,844 | 79 |
| AS7195EdgeUno |  CO | Peer | 1,245 | 2 |
Prefixes
All 823The largest blocks AS3549 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 35.248.0.0/14 | 262k | 81/81 |
| 64.212.0.0/14 | 262k | 81/81 |
| 66.192.0.0/14 | 262k | 81/81 |
| 50.58.0.0/15 | 131k | 81/81 |
| 64.128.0.0/15 | 131k | 81/81 |
| 64.212.0.0/15 | 131k | 81/81 |
| 67.16.0.0/15 | 131k | 81/81 |
| 67.74.0.0/15 | 131k | 81/81 |
| 74.202.0.0/15 | 131k | 81/81 |
| 173.226.0.0/15 | 131k | 81/81 |
Routing health
How AS3549'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
- Valid0.6%5
- Invalid0.5%4
- No ROA98.9%814
Propagation
- Globally propagated90% of full-feed peers or more76.7%631
- Partially propagated40% to 90%1.2%10
- Seen by few peersUnder 40%22.1%182
Prefix sizes
IPv4 — 796 prefixes
- /14262k addresses0.4%3
- /15131k addresses1.1%9
- /1665.5k addresses3.1%25
- /1732.8k addresses2.5%20
- /1816.4k addresses3.3%26
- /198.2k addresses4.0%32
- /204.1k addresses5.9%47
- /212k addresses7.5%60
- /221k addresses7.0%56
- /23512 addresses4.1%33
- /24256 addresses38.3%305
- /25128 addresses8.0%64
- /2664 addresses10.2%81
- /2732 addresses4.4%35
IPv6 — 27 prefixes
- /2934.4B × /643.7%1
- /318.6B × /647.4%2
- /324.3B × /6411.1%3
- /341.1B × /643.7%1
- /441M × /643.7%1
- /4865.5k × /6470.4%19
Recent changes
Announcements that started or stopped since 27th Aug 2026.
- Announced161.217.174.0/2425th Sept 2026
- Withdrawn161.217.174.0/2425th Sept 2026
- Announced8.242.252.0/2424th Sept 2026
- Announced8.242.253.0/2424th Sept 2026
- Withdrawn190.5.15.0/2424th Sept 2026
- Withdrawn190.5.27.0/2424th Sept 2026
- Announced161.217.81.0/2423rd Sept 2026
- Withdrawn161.217.81.0/2422nd Sept 2026
- Withdrawn161.217.179.0/2421st Sept 2026
- Withdrawn189.125.63.0/2621st Sept 2026
- Withdrawn192.251.194.0/2421st Sept 2026
- Withdrawn192.52.183.0/2421st Sept 2026
4 announced and 9 withdrawn in all; the most recent are shown.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.