AS21639Blue Cross Blue Shield Of Louisiana
United StatesRegistryARINAt a glance
IPv4 prefixes
2
IPv6 prefixes
0
IPv4 addresses
264
IPv6 /64s
0
Upstream graph
The networks AS21639 is seen behind, one and two hops out, drawn from real AS paths.
AS21639Toward the internet core
Networks observed one and two hops upstream of AS21639 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
13
adjacent networks
- Upstreams
- 646%
- Peers
- 754%
- Downstreams
- 00%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS6461Zayo Bandwidth | US | Peer | 31 | 31 |
| AS2914NTT America, Inc. | US | Peer | 29 | 25 |
| AS174Cogent Communications, LLC | US | Peer | 13 | 13 |
| AS202Level 3 Parent, LLC | US | Peer | 5 | 5 |
| AS7018AT&T Enterprises, LLC | US | Peer | 4 | 4 |
| AS22773Cox Communications Inc. | US | Peer | 3 | 3 |
Prefixes
The largest blocks AS21639 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 66.248.253.0/24 | 256 | 79/80 |
| 165.254.60.216/29 | 8 | 6/80 |
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.