- Joined
- Jan 23, 2022
The common theme between AT&T and Comcast is that they both seem to shift a lot of traffic towards and receive a lot of routes from Level 3/Lumen. In Comcast's case particularly, they split a lot of their infrastructure in the US into other small little ASNs (such as AS33651) that masquerade as their internet backbone AS (AS7922). These little ASs often have two peers - the Comcast internet backbone itself, and a direct peering with Level 3, which I assume overall means they have a good relationship with L3 and thus probably prefer them. L3 for whatever reason does not have routes for the 1776 block. I would think Comcast would get the routes via Telia, Cogent or PCCW, but it seems that's not the case.
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