1.1.1.1 is served from farther datacenter over IPv4, but close datacenter over IPv6

dns-resolver
#1

Hi, I have an issue where 1.1.1.1 (the service) seems to be served from YVR over IPv4, but SEA over IPv6. I live in PDX, so obviously SEA is the preferable datacenter and has better latency. My ISP is CenturyLink.

IPv4 results: https://1.1.1.1/help#eyJpc0NmIjoiWWVzIiwiaXNEb3QiOiJObyIsImlzRG9oIjoiWWVzIiwicmVzb2x2ZXJJcC0xLjEuMS4xIjoiWWVzIiwicmVzb2x2ZXJJcC0xLjAuMC4xIjoiWWVzIiwicmVzb2x2ZXJJcC0yNjA2OjQ3MDA6NDcwMDo6MTExMSI6IlllcyIsInJlc29sdmVySXAtMjYwNjo0NzAwOjQ3MDA6OjEwMDEiOiJZZXMiLCJkYXRhY2VudGVyTG9jYXRpb24iOiJZVlIiLCJpc3BOYW1lIjoiQ2xvdWRmbGFyZSIsImlzcEFzbiI6IjEzMzM1In0=

IPv6 results: https://1.1.1.1/help#eyJpc0NmIjoiWWVzIiwiaXNEb3QiOiJObyIsImlzRG9oIjoiWWVzIiwicmVzb2x2ZXJJcC0xLjEuMS4xIjoiWWVzIiwicmVzb2x2ZXJJcC0xLjAuMC4xIjoiWWVzIiwicmVzb2x2ZXJJcC0yNjA2OjQ3MDA6NDcwMDo6MTExMSI6IlllcyIsInJlc29sdmVySXAtMjYwNjo0NzAwOjQ3MDA6OjEwMDEiOiJZZXMiLCJkYXRhY2VudGVyTG9jYXRpb24iOiJTRUEiLCJpc3BOYW1lIjoiQ2xvdWRmbGFyZSIsImlzcEFzbiI6IjEzMzM1In0=

#2

There’s not much Cloudflare can do. Chances are the ISP set up static routes or has old routes for 1^4.

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